- 著者
- Sayaka Tada Manabu Kanazawa Anna Miyayasu Maiko Iwaki Murali Srinivasan Shunsuke Minakuchi Gerald McKenna
- 出版者
- Japan Prosthodontic Society
- 雑誌
- Journal of Prosthodontic Research (ISSN:18831958)
- 巻号頁・発行日
- pp.JPR_D_20_00170, (Released:2021-05-11)
- 参考文献数
- 23
- 被引用文献数
- 3
Purpose: The aim of this study was to evaluate patients’ economic preferences for two different tooth replacement strategies for the edentulous mandible namely conventional complete dentures (CCDs) and implant overdentures supported by two implants (IODs), using a willingness-to-pay (WTP) analysis. Methods: Twenty-six elderly patients who had been rehabilitated with either a mandibular CCD or IOD were invited to participate in this study. All participants were provided with the details of the two treatment protocols, including advantages, disadvantages, and treatment costs. The patients were then asked to indicate their maximum WTP values for each protocol using a payment card method for contingency evaluation. Results: Fifteen patients with mandibular CCD (CCD-Group) and 12 patients with IOD (IOD-Group) participated in the study. Overall, the median and maximum WTP values recorded for IOD therapy were significantly higher than those for CCD therapy (p<0.05). Both treatment groups recorded maximum WTP values for CCD therapy, which exceeded the market cost (¥30,000 [US$280]), CCD-Group: ¥50,000 (interquartile range [IQR]: 40,000 – 65,000), and IOD-Group: ¥45,000 (IQR: 30,000–85,000)]. However, both groups registered a median and maximum WTP values for IOD therapy lower than the market cost (¥780,000 [US$7,300]), (CCD-Group: ¥500,000 [IQR: 300,000 - 750,000], IOD-Group: ¥700,000 [IQR: 500,000–800,000]). Conclusion: The maximum WTP values recorded for IOD therapy were significantly higher than CCD therapy in both treatment groups. While patients were willing to pay more than the current market costs for CCDs, they were not willing to meet the market value for IODs.
- 著者
- Yo Akiyama Manabu Kanazawa Maiko Iwaki Tamaki Hada Yumika Soeda Ryosuke Otake Kenta Kashiwazaki Yuriko Komagamine Natsuko Murakami Atsushi Takaichi Noriyuki Wakabayashi Shunsuke Minakuchi
- 出版者
- Japan Prosthodontic Society
- 雑誌
- Journal of Prosthodontic Research (ISSN:18831958)
- 巻号頁・発行日
- pp.JPR_D_22_00100, (Released:2023-02-02)
- 参考文献数
- 17
- 被引用文献数
- 3
Purpose: Although digital removable partial dentures have been previously described, there have been no reports on how to fabricate them in one piece. This study proposes a new method for fabricating patient-specific digital removable partial dentures using a custom plate.Methods: First, a gypsum model was scanned using a laboratory scanner and a removable partial denture was designed using computer-aided design (CAD) software based on standard tessellation language data. The metal clasp was fabricated from Ti-6Al-4V using a 3D printer. For custom plate fabrication, a resin plate frame was designed using computer-aided design (CAD) software and fabricated using a 3D printer. An artificial tooth and metal clasp were fixed on the base surface of the frame, an auto-polymerizing resin was poured into the frame for the denture base, and the artificial tooth and metal clasp were packed to form a custom plate. The plate was cut using a milling machine. Subsequently, the support attached to the denture was removed and polished for complete fabrication of the denture.Conclusions: Our novel removable partial denture fabrication method is more efficient than the conventional method. The obtained removable partial dentures demonstrated satisfactory accuracy.