Dental Prosthesis

dental pro
View more...
   EMBED

Share

Preview only show first 6 pages with water mark for full document please download

Transcript

Gabor Tepper Robert Haas Georg Mailath Christoph Teller Thomas Bernhart Gabriel Monov Georg Watzek Representative marketing-oriented study on implants in the Austrian population. II. Implant acceptance, patient-perceived cost and patient satisfaction Author’s affiliations: Gabor Tepper, Robert Haas, Georg Mailath, Thomas Bernhart, Gabriel Monov, Georg Watzek, Department of Oral Surgery, Dental School of the University of Vienna, Austria Christoph Teller, Department of Retailing and Marketing Vienna University of Economics, Vienna, Austria Gabor Tepper, Robert Haas, Georg Mailath, Thomas Bernhart, Gabriel Monov, Georg Watzek, Ludwig Boltzmann Institute of Oral Implantology and Gerostomatology, Vienna, Austria Key words: implants, survey, public evaluation, implant acceptance, patient satisfaction, Correspondence to: Gabor Tepper Department of Oral Surgery, Dental School of the University of Vienna, Austria Waehringerstrasse 25A A-1090 Vienna, Austria Tel: þ 43 1 4277 67011 Fax: þ 43 1 4277 67019 e-mail:[email protected] presented with 14 questions. Of those familiar with implants as one of the treatment patient-perceived cost, marketing Abstract: Oral implantology is an established subspecialty of restorative dental and oral surgery. While an extensive body of evidence on the fundamentals of osseointegration and associated factors has been published, marketing-oriented analyses based on representative public opinion polls of implant acceptance, patient-perceived cost and patient satisfaction are scarce. In this study, an attempt was made to address these points by questioning a representative sample of 1000 adults in the household setting.The interviewees were alternatives, 61% reported they would accept implants if the need arose. Implant acceptance was highest among males and interviewees below the age of 30 years. The interest in implants increased with increasing family incomes. Four percent of those questioned already had implants. Twenty-five percent knew someone who had undergone implant treatment. All those questioned found implant-supported rehabilitation to be very expensive. Many of them blamed the dentists for the high cost. One detail was particularly evident: satisfaction among implanted patients was clearly higher than satisfaction rates perceived by them from what they were told about implants by others. First-hand experiences with implants proved to be less biased than reported second-hand information. Date: Accepted 24 June 2002 To cite this article: Tepper G, Haas R, Mailath G, Teller C, Bernhart T, Monov G, Watzek G. Representative marketing-oriented study on implants in the austrian population. II. implant acceptance, patient-perceived cost and patient satisfaction. Clin. Oral Impl. Res, 14, 2003; 634–642 Copyright r Blackwell Munksgaard 2003 ISSN 0905-7161 634 In 1988 about 300,000 implants were inserted worldwide (Davies 1996). Shortly before the turn of the millennium, the implant insertion rate was estimated to be more than 1 million (Brunski 1999). Implant-supported rehabilitation substantially improves the quality of life and selfconfidence of the patients by giving them more masticatory comfort (Mu¨ller et al. 1994). In a literature search of reports on dental implants, roughly 6000 citations were found. These reflect the extensive basic and clinical research on a wide spectrum of aspects ranging from novel implant surfaces, to bioactive growth fac- tors to such details as the ideal suture material in dental implantology (Ivanoff & Widmark 2001). But what the public thinks about dental implants has largely been neglected. The result is that those involved in the industry risk going ahead without regard to the consumers, i.e. the patients, because they ignore market requirements and let things go their own way. However, medical responsibility and vital economic interests necessitate an appraisal of the role accorded to implants by the public by analyzing patient feedback. In a Swedish study, long-term satisfaction rates were determined 10 years after Gabor Tepper, et al . Marketing-Oriented study on implants –II implant treatment. These showed 97% of those questioned to be generally satisfied with masticatory function and phonation and to be more self-confident (Sandberg et al. 2000). In a survey evaluating patient satisfaction after implant treatment, even if provided by office-based dentists with little experience in this field, implant-supported solutions were reported to be clearly superior to conventional removable dentures in terms of chewing comfort, esthetic appearance and phonation (De Bruyn et al. 1997). The outcome of another two surveys is of particular interest: 51% of the fully dentate individuals said implants would be the desired treatment of first choice vs. no more than 7% and 8%, respectively, of the edentulous patients. This indicated that the subjectively perceived need for highquality implant-supported rehabilitation decreased with increasing deterioration of dental health and dental status (Uhrbom & Bjerner 1990; Palmqvist et al. 1991). In this representative opinion poll, an attempt was made to pinpoint the role currently accorded to dental implants by the public in Austria as a model case for the European Union (EU). To this end, personal interviews were conducted by professionally trained interviewers from an institute for market research in private households based on targeted focused questions. Part I addressed the level of information, the sources of information and the subjectively perceived as well as the objective need for patient information (Tepper et al. 2003). This contribution (Part II) deals with implant acceptance, subjective patient views about cost and cost-generating factors as well as patient satisfaction with implants in situ. A special point was made to compare satisfaction reported first hand by those who had already undergone implant treatment themselves with second-hand experiences communicated to the interviewees by others. The data gathered were analyzed from the vantage point of modern marketing with a dual purpose in mind: (1) to enable both hospital and office-based dentists to design suitable communication strategies for patient information and (2) to enable the industry and the dental schools to anticipate intermediate-range demand both for production planning and training of implant dentists and maxillofacial surgeons. Material and methods The present poll was commissioned by the Department of Oral Surgery, University of Vienna Dental School, and conducted by the Austrian Gallup Institute (Dr Karmasin – Market Research). The data accumulated were subjected to a marketingoriented analysis by the Department of Retailing and Marketing at the Vienna University of Economics and Business Administration. The methods used were reported elsewhere (Tepper et al. 2003) and are summarized briefly. Thirty-two questions were presented to a total of 1000 individuals. Of these, 14 are dealt with in this contribution. The items in the first set of questions, about implant acceptance included dental status, replacements for missing teeth, if any, and the general attitude towards the need for prosthodontic rehabilitation. In a second set of questions, public opinion on the cost of implant treatment and the patientperceived cost-generating factors was probed. And finally patient satisfaction with implants was evaluated, with special emphasis on comparing personal experiences made by implant-treated patients with those communicated to the interviewees by friends and acquaintances. The demographic data of the sample, the polling period, the polling method and the follow-up mechanisms are identical to those reported in Part I (Tepper et al. 2003). Fig. 1 gives a brief outline. The Appendix lists those 14 of the total of 32 items, which form the basis of this report. They were grouped together in three sets: A B C Dental status, crowns, bridges and dentures, if any, and general attitude towards prosthodontic rehabilitation for evaluating implant acceptance Cost of implant treatment First-hand or second-hand experience with implants and satisfaction with implant-supported rehabilitation. Results Dental status, crowns, bridges and dentures, if any, and general attitude towards prosthodontic rehabilitation to evaluate implant acceptance Of those questioned, 97% felt that missing teeth should be replaced in adults. But only 72% (77% of the women and 66% of the men) found that this was absolutely necessary. Twenty-five percent (29% of the women and 22% of the men) would only have their missing teeth replaced if the gap were visible. Three percent of the sample (1% of the women and 5% of the men) thought that closing a gap in the row of teeth was unnecessary. Of the interviewees with higher professional qualifications in the higher income brackets who lived in communities with more than 50,000 inhabitants, 99% were affirmative about the need of prosthodontic rehabilitation vs. 94% of those living in communities with less than 50,000 inhabitants. Asked whether they had already lost at least one tooth or more, 41% answered Fig. 1. Brief summary of the Material and methods. 635 | Clin. Oral Impl. Res. 14, 2003 / 634–642 Gabor Tepper, et al . Marketing-Oriented study on implants –II ‘yes’ and 59% answered ‘no’. In this respect there was no difference between males and females (males 50%, females 50%). Twenty-six percent had lost three teeth, 8% four to five teeth, 7% up to 10 teeth, 4% more than 10 teeth and 5% almost all their teeth. Six percent of those questioned were edentulous and 5% did not contribute any answer to this question. The answers given differed substantially by age. Below 30 years, 25% of those interviewed reported to have lost one to three teeth vs. 56% of those below 50 years and 85% of those above 50 years. The socio-economic status and the net family income also made a difference. In the income bracket up to h900 73% of the sample had lost at least one to three teeth vs. no more than 40% with an income above h2200. The size of the place of residence was irrelevant for the dental status. Of those who had lost one or more teeth, 70% said they had their missing teeth replaced. Thirty-four percent had crowns or bridges, 13% had removable partial dentures, 18% had complete dentures at least in one jaw and 4% had implant-supported replacements. The others did not give any information on this point. Below age 50 only 2% had full-arch dentures vs. 31% above age 50. Thirty percent of the sample had at least one gap without any replacements. Asked about how satisfied they were with the way in which their missing teeth were replaced, the mean satisfaction score on a rating scale equivalent to the school grades in Austria (1 – 5) was 2.06 for the men vs. 1.73 for the women (Dillon et al. 1994). The mean score for the entire sample was 1.87. Of those above 50, who mostly had removable dentures, 36% said they were very satisfied. Of those in the younger age group, who were mostly rehabilitated with nonremovable bridges, 41% were very satisfied. All in all, 41% of those rehabilitated with crowns, bridges or dentures were very satisfied irrespective of the type of prosthodontic work. Among those with implant-supported rehabilitations, the satisfaction rate was much higher, i.e. 51% for function and 62% for esthetic appearance. Of those who were familiar with implants, 61%, i.e. 65% of the men and 58% of the women, would have their missing 636 | Clin. Oral Impl. Res. 14, 2003 / 634–642 teeth replaced by implants. Aside from the gender, age also made a difference: Implants would be accepted by 73% of those below 30 years, by 64% of those up to 50 years and by no more than 51% of those over 50 years. Implant acceptance also varied as a function of the monthly family income. Up to a net income of h900, 55% were prepared to accept implants. The implant acceptance rate increased to 61% at an income of up to h1500, to 64% at up to h2200 and to 74% at incomes above this level. Twenty-three percent of the sample decidedly rejected implants. Only 37% thought every one could be rehabilitated with implants. Cost of implant treatment Asked to estimate what a single implant without suprastructure would cost, 18% said up to h750, 26% said h1000, 20% said h1500, 11% h2000, 16% said more than h2000 and 9% were undecided. Seventyeight percent felt the price they had estimated was too high, 12% found it fair, 1% thought it was favorable and 9% did not answer. Even of those who gave an estimate of h750 at most, 75% felt that this was too expensive. In the group already rehabilitated with implants, 79% thought implant treatment was too expensive. The interviewees were also asked how much – in their view – a dentist himself would have to pay for purchasing an implant. Nine percent thought up to h100, 26% up to h200, 34% up to h350, 14% up to h700, 2% up to h1000, 1% more than h1000 and 15% did not know. A below-average purchasing price for the dentist of 100 at most was quoted by 12% of those in the lowest income bracket vs. only 2% of those in the highest income bracket and by 12% of those living in smaller communities with less than 5000 inhabitants vs. only 5% of those living in towns with more than 50,000 inhabitants. Sixty-two percent of the sample attributed the cost of implant treatment to the dentists, 21% to the lab technicians, 15% to the manufacturers and to taxes, 9% to the dealers, while 7% were undecided. Of those rehabilitated with implants, 54% thought the dentists were responsible for the price, 23% held the lab technicians responsible, 12% the dealers, 10% the taxes and 6% the manufacturers. Two percent did not reply. Asked who should pay for implant treatment, 72% said the sick funds/social security agencies, 21% said private insurers, 14% felt the patient should bear the cost and 4% were undecided. Among the women, 18% would have the patient pay vs. only 9% among the men. This view was shared by 8% of those below 30 years and 14% of those above 50 years. Of those already rehabilitated with implants, 80% felt the sick funds/social security agencies should bear the cost for implant treatment. Only 8% would have the patient pay for it. Views about who should pay also varied by professional qualifications: self-financing was advocated by 25% of the self-employed, freelancers and executives vs. only 9% of the blue-collar workers, 10% of the civil servants and white-collar workers and 12 of the retirees. Of those in the highest income bracket, 19% were ready to pay themselves for implant treatment vs. only 13% of those in the lowest income bracket. First-hand or second-hand experience with implants and satisfaction with implantsupported rehabilitation Twenty-five percent of the sample reported to know someone fitted with implants. Four percent had themselves undergone implant treatment. This applied to 2% of those below 30 years of age and to 6% of those above 50 years as well as to 10% of the self-employed, freelancers and executives vs. no more than 2% of the blue-collar workers with an obvious gradient between urban and rural communities: only 3% of those living in communities with less than 5000 inhabitants had undergone implant treatment vs. 12% in an urban environment with more than 50,000 inhabitants. Of the implanted patients, only 10% had had removables before, i.e. 12% of the men and only 5% of the women. In the group of implanted patients, 18% of those above 50 years had had removables before vs. 0% of those younger than 50 years. Of those earning less than h900 and h1500, 11% and 15%, respectively, had had removables before vs. no one among those in the higher income brackets. Sixtytwo percent of the implanted patients were very satisfied with their esthetic appearance. But only 51% were very satisfied functionally. On average, the esthetic appearance scored 1.4 on a school grade Gabor Tepper, et al . Marketing-Oriented study on implants –II scale of 1 – 5 vs. 1.61 for function. Of those under 30 years, 75% were very satisfied both esthetically and functionally vs. no more than 34% of those above 50 years. Interviewees with implant-treated friends or acquaintances reported that only 29% of these were very satisfied, while 6% were dissatisfied. The bar charts in Fig. 2 illustrate the most important data. Discussion The major differences between this representative patient poll about the level of information and the attitude of the Austrian public towards dental implants and most of the earlier studies were highlighted at length in Part I (Tepper et al. 2003). They mainly relate to the type of questioning, the number of items covered, the size and representativeness of the sample and a marketing-oriented approach to data analysis and interpretation. In keeping with the marketing-oriented approach, face-to-face interviews in private households, while cost-intensive, appeared to be best suited for obtaining valid data in view of the complex nature of the subject and the intended minimization of the nonresponse rate (Zikmund 1999). The analysis of the complex questionnaire brought forth a number of conclusions. Situated in Central Europe, the polling area, i.e. Austria, is well compar- able with the standards generally prevailing in the EU in terms of socio-economic variables, health care, average monthly income, life expectancy, education and dental care provision. Consequently, the data collected can be expected to reflect conditions in most of the country members of the EU (Statistik Austria 2001). A. Dental status, crowns, bridges and dentures, if any, and general attitude towards prosthodontic rehabilitation to evaluate implant acceptance Interestingly, 25% of those questioned felt that replacing missing teeth was only necessary if the gap was visible. This agrees well with a published report indicating that 79% of the Swedish population did not Fig. 2. (a – e) Bar charts illustrating the most important data. 637 | Clin. Oral Impl. Res. 14, 2003 / 634–642 Gabor Tepper, et al . Marketing-Oriented study on implants –II think missing teeth needed to be replaced (Palmqvist et al. 1991). Dental care providers should make a greater effort to sensitize their patients to the complex consequences of intermediate or terminal gaps left unattended for the entire masticatory system, lest they neglect their obligation to provide information on late sequels. Early instruction in oral hygiene and information about the need for regular preventive dental care should particularly target the socio-economically less privileged, because 73% of those in the lowest income bracket had lost up to three teeth vs. no more than 40% of those in the highest income bracket. As 30% of the sample reported to have at least one unattended gap, the potential for restorative dentistry, both implant-supported and conventional, is still largely untapped. The satisfaction rates with what restorative solutions patients currently have provide a major challenge for the future: as only 41% of the nonimplanted patients were very satisfied with them vs. 62% (esthetics) and 51% (function) of the implanted patients, nonremovables should be offered to as many patients as possible. This would require that dentists, implantologically oriented organizations and the industry provide adequate information about this option before the need for treatment arises (Tepper 2003). Interestingly, a study conducted in Germany showed that elderly patients are more willing to put up with functionally poor dentures (Mu¨ller et al. 1994), because they more or less unconsciously accept age-related losses of masticatory function and tend to develop compensatory adaptive processes (Korunder & Marken 1967). The acceptance rates of implant treatment varied considerably by gender (65% of the males vs. 58% of the females) and by age (75% of those under 30 years vs. 51% of those above 50 years). This contrasts with a German study, which did not find resentments about oral implants to be agedependent (Mu¨ller et al. 1994). In the present study only 55% of those in the lowest income bracket were open-minded about implants vs. 74% of those in the highest income bracket. This agrees well with a recent Norwegian study showing that low age, high educational level, high income and urban residence correlated most strongly with the readiness to undergo 638 | Clin. Oral Impl. Res. 14, 2003 / 634–642 implant treatment (Berge 2000). Reports from Norway and Sweden also indicated that low socio-economic status with poor oral health was associated with a lack of interest in implants (Rise & Holst 1982;Palmqvist et al. 1991, 1993). Looking into implant denial rates, a study from Finland showed that, despite very poor function, only 15% of the denture patients were interested in implant-supported rehabilitation (Salonen 1994). At first glance, this study is not fully comparable with the results of others. But as it involved a preselected sample of edentulous Finns aged 55 years, it once more confirmed that a poor dental status was associated with a lack of interest in implant treatment (Rise & Holst 1982;Palmqvist et al. 1991, 1993). In a German study the most common reasons for rejecting implants were that those above 67 years felt they were too old and those below this age were satisfied with what rehabilitation they had (Mu¨ller et al. 1994). B. Cost of implant treatment In the present study 61% of those questioned were convinced that implants were only ‘for the rich’ without, however, knowing how much they actually cost. Expectedly, cost was not just a local problem. In fact, 31% of the subjects questioned in Japan (Akagawa et al. 1988), 30% in a Swedish study (Palmqvist et al. 1991) and 29% in the USA (Zimmer et al. 1992) reported that they rejected implants because of the excessive financial burden. Cost was not a major factor for the patients in only one study conducted in Germany (Mu¨ller et al. 1994). While most of those interviewed correctly quoted the price the patient has to pay for dental implants and the dentist has to invest for purchasing them, both implanted patients and all other subjects questioned felt that current prices billed to end users were too high. Three-quarters of those interviewed thought that social security agencies should pay for implants, while only 14% would want the patients themselves to pay for them. More information about the investments needed for research, training and implant production could help to make the patients accept the expenses incurred by implant treatment more readily. When patients realize that implantology in many respects touches upon the most complex areas of state-of-the-art dentistry, they may well be prepared to reconsider their views about implant cost. C. First-hand or second-hand experience with implants and satisfaction with implant-supported rehabilitation Asked about how common implants were, one-quarter (25%) of the sample admitted to know at least one implanted patient. This compares with 17% in the USA (Zimmer et al. 1992). Four percent of the subjects had undergone implant treatment with at least one implant themselves. The rate substantially differed in urban and rural areas, with 3% implanted patients in the rural communities and 12% in urban environments. Thus, urban residence and easier access to implant dentists or clinics are major factors underlying implantation rates. In regard to patient satisfaction with endosseous implants, negative impressions apparently tend to be more readily communicated than positive experiences. This was reflected by the satisfaction rates with in situ implants. Of the implanted patients, 62% reported to be very satisfied with their implants esthetically and 51% functionally. But when asked about the satisfaction of implanted patients they knew, they said only 29% of them were very satisfied. In several studies very high satisfaction rates were noted among implanted patients with access to first-hand information, e.g. 97% satisfied patients in the study by Grogono et al. (1989). In another two studies 90– 93% of the implanted patients said they would again undergo implant treatment (Gu¨nay et al. 1991; De Bruyn et al. 1997). Matters were, however, quite different for second-hand experiences. In a study conducted in the USA, only 10% of the nonimplanted interviewees thought their implanted friends and acquaintances were satisfied (Zimmer et al. 1992). Apparently negative experiences communicated by implanted patients made a greater impact and prompted their friends and acquaintances to rate their satisfaction as suboptimal. This may, at least in part, be attributable to the tendency of primarily communicating first impressions gathered during the immediate postsurgical or prosthodontic management stage rather Gabor Tepper, et al . Marketing-Oriented study on implants –II than experiences made later with fully functional and uneventfully incorporated bridges or dentures that the patients have become used to. Dramatized negative experiences with in-use problems communicated to others may also be a factor. This is supported by the clearly higher satisfaction rates of the implanted patients themselves, who need not go by second-hand information and have often experienced dramatic improvements in chewing comfort and quality of life during variable in-use times. In a Swedish study, patient satisfaction with the esthetic outcome scored much higher than comparable ratings by the prosthodontists (Chang et al. 1999). Esthetic criteria important for the prosthodontists like red–white esthetics apparently were of secondary importance for the patients. The high satisfaction rates of implanted patients should, however, be seen in the light of a key factor elicited in a Swedish study: 83% of those questioned said they did not want to have implants because they were quite happy with their removable dentures (Palmqvist et al. 1991). To balance matters it is important to quote a recent study, which showed that implant treatment personally experienced was the key factor underlying a positive attitude towards dental implants (Berge 2000). Marketing-oriented interpretation of the data For ethical reasons, marketing-oriented analyses are a highly sensitive matter in medicine generally. What objections and concerns have been raised against them was dealt with at some length in Part I of this study (Tepper et al. 2003). In full awareness of treading on virgin ground, a brief marketing analysis of the data shall nevertheless be added. This appears to be justified for several reasons, among them the inherent need to provide a sound financial basis for state-of-the-art medical and dental care of the masses in the future. Considering that 30% of the sample had at least one missing tooth that was not replaced, the market potential available to oral implantology is all but fully exhausted. Competent communication between the doctor and the patient by professional relational management supported by implant organizations would appear to be the most important source for generating and channeling demand for implants. Consumer-oriented, i.e. patient-oriented, information campaigns designed to dispel misconceptions could eventually boost the patients’ demand for implants and, given an adequate purchasing power, generate a pull effect (Scheuch 1996; Kotler & Bliemel 2001). In regard to subjectively perceived prices, it should be noted that consumers of implants can at best give limited estimates of what implants are worth. Both the complex nature of the product and the service input needed make it extremely difficult for them to put a figure to the expected benefits (Meffert 2000). Emphasizing the special advantages of the product and the service input associated with it in comparison to alternative treatment options by effective information should have a positive impact on what patients subjectively think about the cost of implant treatment. Giving consumers an idea of what implant dentists have to spend on investments and maintenance would also be helpful (Kotler & Bliemel 2001). In a difficult field like oral implantology with its many options all dental implant systems should be subjected to regular long-term evaluations for purposes of quality assurance (Morgan & Chapman 1999). A Swedish report on patient satisfaction 10 years after implant treatment recommended condensing patient experiences into an information leaflet and making this available to prospective implant patients (Sandberg et al. 1999). As such a leaflet would be based on first-hand information, it would be an effective confidence-building tool. Another tool proposed was an international identification system. It would help to retrace the history of implants and provide reliable information on complications and re-interventions (Colgan 1999). Planning for future demand and anticipating the market potential for oral implantology is a challenging task for dental schools, specialized departments and the industry. A recent study from Sweden indicated that the percentage of edentulous individuals below the age 74 years dropped from 19% in 1975 to a current 3% (Osterberg et al. 2000). Based on these data, 95% of those below 74 years and 90% of those below 84 years can be expected to be more or less dentate by 2015. All this makes it exceedingly difficult to predict future demands in restorative dentistry in general and oral implantology in particular. Acknowledgements: This study was funded equally by Nobel Biocare Austria, Friadent – Schu¨tze, Degussa Dental Austria GmbH and Straumann GmbH Austria. The present report is based on a commissioned opinion poll conducted by Dr Karmasin Institute for Market Research – Austrian Gallup Institute Interview Division. The authors gratefully acknowledge the assistance of the Department of Retailing and Marketing (Head: Prof. Stieglitz), Vienna University of Economics and Business Administration. Re´sume´ L’implantologie buccale est une technique applique´e dans certaines spe´cialite´s de me´decine dentaire. Tandis que la proportion d’e´vidences s’accrot en ce qui concerne la recherche sur l’oste´oı¨nte´gration et les facteurs associe´s, les analyses oriente´es sur le marketing et l’opinion du public sur l’acceptation de l’implant, le prix et la satisfaction se font rares. Cette e´tude a e´te´ re´alise´e pour analyser ces diffe´rents points via un e´chantillon de 1 000 adultes. Les interviewe´s ont re´pondu a` quatorze questions. De ceux qui e´taient familiers a` l’ide´e que les implants pouvaient eˆtre une alternative au traitement, 61 % ont re´pondu qu’ils pourraient si ne´cessaire y recourir. L’acceptation de l’implant e´tait plus importante chez les hommes et les personnes aˆge´es de moins de trente ans. L’inte´reˆt a` propos des implants augmentait paralle`lement aux revenus de la famille. Quatre pour cent des personnes e´taient de´ja` porteurs d’implants. Vingt-cinq pour cent connassaient une personne ayant subi un traitement d’implant buccal. Parmi toutes les personnes interroge´es, la re´habilitation sur implants semblait trop che`re. Beaucoup d’entre-eux rejetaient la responsabilite´ des prix trop e´leve´s sur les dentistes. Un de´tail e´tait particulie`rement e´vident : la satisfaction parmi les patients posse`dant des implants e´tait clairement plus importante que le taux de satisfaction perc¸u par ceux n’en portant pas mais ayant rec¸u l’information par d’autres personnes. L’expe´rience personnelle e´tait moins de´forme´e que celle obtenue de manie`re indirecte. Zusammenfassung Die orale Implantologie ist eine etablierte Subspezialita¨t der restaurativen Zahnmedizin und der Oralchirurgie. Wa¨hrend extensive Evidenz u¨ber die Grundlagen der Osseointegration und der assoziierten Faktoren publiziert worden ist, sind marketingorientierte Analysen basierend auf repra¨sentativen Meinungsumfragen u¨ber die Akzeptanz von Implantaten, u¨ber die von Patienten empfundenen Kosten und u¨ber die Patientenzufriedenheit rar. In dieser Studie wird der Versuch unternommen, diese 639 | Clin. Oral Impl. Res. 14, 2003 / 634–642 Gabor Tepper, et al . Marketing-Oriented study on implants –II Punkte mit Hilfe einer Befragung einer repra¨sentativen Gruppe von 1000 Erwachsenen anzusprechen. Den Befragten wurden 14 Fragen gestellt. Von denen, welche u¨ber Implantate als Behandlungsalternative Bescheid wussten, gaben 61% an, sie wu¨rden Implantate bei sich akzeptieren, falls die Notwendigkeit dafu¨r besteht. Die Akzeptanz von Implantaten war bei Ma¨nnern und Befragten unter 30 Jahren am gro¨ssten. Das Interesse an Implantaten nahm mit zunehmendem Familieneinkommen zu. Vier Prozent der Befragten hatten bereits Implantate. Fu¨nfundzwanzig Prozent kannten jemanden, der sich einer Implantation unterzogen hat. Alle Befragten empfanden Implantatversorgungen zu kostspielig. Viele davon fanden, der Zahnarzt sei schuld an den hohen Kosten. Ein Detail war von besonderem Interesse: Die Zufriedenheit bei mit Implantaten versorgten Patienten war deutlich gro¨sser als die von anderen Leuten empfundene Zufriedenheit, welche u¨ber Implantatversorgung von anderen geho¨rt haben. Erfahrungen mit Implantaten aus erster Hand waren mit weniger Vorurteilen behaftet als Informationen aus zweiter Hand, u¨ber die berichtet wurde. Resumen La implantologı´a oral es una subespecialidad establecida de restauracio´n dental y cirugı´a oral. Mien- tras que se ha publicado una gran cantidad de evidencias sobre los fundamentos de la osteointegracio´n y factores asociados, los ana´lisis orientados al marketing basados en encuestas representativas de la opinio´n pu´blica sobre aceptacio´n de los implantes, costo percibido por el paciente y satisfaccio´n del paciente son escasos. En este estudio se hizo un intento de dirigir estos puntos encuestando una muestra representativa de 1000 adultos en su hogar. A los entrevistados se les presentaron 14 preguntas. De aquellos familiarizados con los implantes como una de las alternativas de tratamiento, el 61% respondio´ que aceptarı´an los implantes llegada la necesidad. La aceptacio´n de los implantes fue mayor en varones y entrevistados menores de 30 an˜os. El intere´s en los implantes crecio´ con ingresos familiares crecientes. El 4% de los encuestados ya tenı´an implantes. El 25% conocı´a a alguien que se habı´a sometido a tratamiento de implantes. Todos los encuestados encontraron la rehabilitacio´n con implantes demasiado cara. Muchos de ellos culparon a los dentistas del alto costo. Un detalle fue particularmente evidente: La satisfaccio´n entre los pacientes implantados fue claramente mas alta que los ı´ndices de satisfaccio´n percibidos por ellos de lo que se les dijo sobre los implantes por otros. Las experiencias de primera mano con implantes demostraron ser menos viciadas que las informaciones reportadas de segunda mano. References Adell, R., Eriksson, B., Lekholm, U., Branemark, P.I. & Jemt, T. (1990) A long-term follow-up study of osseointegrated implants in the treatment of totally edentulous jaws. International Journal of Maxillofacial Implants 5: 347–359. Akagawa, Y., Rachi, Y., Matsumoto, T. & Tsuru, H. (1988) Attitudes of removable denture patients toward dental implants. Journal of Prosthetic Dentistry 60: 362–364. Berge, T.I. (2000) Public awareness, information sources and evaluation of oral implant treatment in Norway. Clinical Oral Implants Research 11: 401–408. Brickau, R. (2001) ‘Star-Dent’-die Marke als Qualita¨tsorientierung fu¨r den Patienten. Zahnarzt und Praxis 4: 400–405. Brunski, J.B. (1999) In vivo bone response to biomechanical loading at the bone/dental implant interface. Advances in Dental Research 13: 99–119. Chang, M., Odman, P.A., Wennstrom, J.L. & Andersson, B. (1999) Esthetic outcome of implant-supported single-tooth replacements assessed by the patient and by prosthodontists. International Journal of Prosthodontics 12: 335– 341. Colgan, P.J. (1999) Implant identification system. International Dental Journal 49: 122–124. Davies, J.E. (1996) In vitro modelling of the bone/ implant interface. Anatomical Record 245: 426– 445. De Bruyn, H., Collaert, B., Linden, U. & Bjo¨rn, A.L. (1997) Patient’s opinion and treatment outcome of fixed rehabilitation on Branemark implants. 640 | Clin. Oral Impl. Res. 14, 2003 / 634–642 A 3-year follow-up study in private dental practices. Clinical Oral Implants Research 8: 265–271. Dillon, W.R., Madden, T.J. & Firtle, N.H. (1994) Marketing research in a marketing environment 3rd edition, 304–310. Boston: Burr Ridge, Sidney: Irwin. Grogono, A.L., Lancaster, D. & Finger, I.M. (1989) Dental implants: a survey of patients’ attitudes. Journal of Prosthetic Dentistry 62: 573–576. Gu¨nay, H., Veltmaat, A., Schneller, T. & Neukam, F.W. (1991) Psychologische Aspekte bei Patienten nach Implantatversorgung. Deutsche Zahna¨rztliche Zeitschrift 46: 698–701. Ivanoff, C.J. & Widmark, G. (2001) Nonresorbable vs. resorbable sutures in oral implant surgery: a prospective clinical study. Clinical Implantology and Dentistry Related Research 3: 57–60. Korduner, G. & Marken, K.E. (1967) Re-examination of complete denture patients. II. Status and need of treatment after two years. Acta Odontologica Scandinavica 25: 373–381. Kotler, P. & Bliemel, F. (2001) Marketing management. 10th edition, 920–921. Stuttgart: Scha¨ferPoeschel. Meffert, H. (2000) Marketing. Grundlagen marktorientierter Unternehmensfu¨hrung. Konzepte-Instrumente-Praxisbeispiele. 9th edition, 712–783. Wiesbaden: Gabler Verlag. Morgan, K.M. & Chapman, R.J. (1999)Retrospective analysis of an implant system. Compendium in Continuing Education in Dentistry 20: 609614, 616-623. Mu¨ller, F., Wahl, G. & Fuhr, K. (1994) Age related satisfaction with complete dentures, desire for improvement and attitudes to implant treatment. Gerodontology 11: 7–12. Osterberg, T., Carlsson, G.E. & Sundh, V. (2000) Trends and prognoses of dental status in the Swedish population: analysis based on interviews in 1975 to 1997 by Statistics Sweden. Acta Odontologica Scandinavica 58: 177–182. Palmqvist, S., So¨derfeldt, B. & Arnbjerg, D. (1991) Subjective need for implant dentistry in a Swedish population aged 45–69 years. Clinical Oral Implants Research 2: 99–102. Palmqvist, S., So¨derfeldt, B. & Arnbjerg, D. (1993) Influences of some background factors on the subjective need for dental implants in a Swedish population. Acta Odontologica Scandinavica 51: 9–14. Rise, J. & Holst, D. (1982) Causal analysis on the use of dental services among old-age pensioners in Norway. Community Dentistry Oral Epidemiology 10: 167–172. Salonen, M.A.M. (1994) Assessment of states of dentures and interest in implant-retained prosthetic treatment in 55-year-old edentulous Finns. Community Dentistry and Oral Epidemiology 22: 130–135. Sandberg, G., Stenberg, T. & Wikblad, K. (2000) Ten years of patients’ experiences with fixed implantsupported prostheses. Journal of Dental Hygiene 74: 210–218. Gabor Tepper, et al . Marketing-Oriented study on implants –II Scheuch, F. (1996) Kommunikationspolitik. In: Scheuch, F., ed. Marketing. 3rd edition, 346– 390. Mu¨nchen: Vahlen. Statistik Austria. (2001) Statistisches Jahrbuch ¨ sterreich. O¨sterreichs, 506–531. Vienna: Verlag O Tepper, G., Haas, R., Mailath, G., Teller, C., Zechner, W. & Watzek, G. (2003)Representative marketing-oriented study on implants in the Austrian population – a model case for conditions in the EU. Part I: Level of information, sources of information and need for patient information. to Clinical Oral Implants Research 14: 621–633. Uhrbom, E. & Bjerner, B. (1990) Epiwux 89. Falun: Kopparbergs la¨ns landsting. Zikmund, W.G. (1999) Essentials of marketing research. 1st edition, 147–149. Orlando: Dryden Press. Zimmer, C.M., Zimmer, W.M., Williams, J. & Liesener, J. (1992) Public awareness and acceptance of dental implants. International Journal of Oral and Maxillofacial Implants 7: 228–232. Appendix Questionnaire – PART II Implant acceptance, patient-perceived cost, patient satisfaction A. Dental status, crowns, bridges and dentures, if any, and general attitude towards prosthodontic management to evaluate implant acceptance 1. Do you think missing teeth should be replaced in adults ? Yes, definitely Yes, if the gap is visible No 2. Have you lost one or more teeth in the past? Yes 1–3 4–5 6–10 3. Did you have your missing teeth replaced? Yes If you did, what with? Crowns, bridges, adhesive bridges Implants/implant-supported bridges/dentures 4. 5. More than 10 Almost all teeth No All teeth 4 5ydissatisfied No Metal-based dentures Full-arch dentures How satisfied are you with your current replacements? 1. very satisfied 2 3 What do you personally think of implants? Would have them made, if needed Implants are good for everyone Implants are expensive, only for the rich Would not have any Implants are not good for everyone Everyone can afford implants B. Cost of implant treatment 6. How much do you think a patient has to pay for an implant in Austria without a crown, i.e. just for the post? Up to h750 Up to h1,000 Up to h1500 Up to h2000 More than h2000 7. Do you think this is Favorable? 8. 9. 10. C. Fair? Too much? How much do you think a dentist has to pay for purchasing an implant from the manufacturer/dealer ? Up to h100 Up to h200 Up to h350 Up to h700 Up to h1000 Who/what is mainly responsible for the final price? Dentist Lab technician Manufacturer Who should pay for the implant? Patient Sick fund/social security Dealer More than h1000 Taxes Private insurer First-hand or second-hand experience with implants and patient satisfaction with implants in situ 11. Have you yourself or any one you know ever had implants? Yes, I have Yes, someone I know No 641 | Clin. Oral Impl. Res. 14, 2003 / 634–642 Gabor Tepper, et al . Marketing-Oriented study on implants –II 12. Before you had your implants put in, did you have removable dentures? (for implanted patients only) Yes No 13. How satisfied are you with your implant(s)? Esthetically Very satisfied Satisfied Fair to middling Not so satisfied Unsatisfied 14. If you know someone with implants, how satisfied is he/she with the implant(s)? Very satisfied 1 Satisfied 2 Fair to middling 3 Not so satisfied 4 Unsatisfied 5 Do not know 642 | Clin. Oral Impl. Res. 14, 2003 / 634–642 Functionally 1 2 3 4 5