講演情報
[P-57（E）]Eight-Year Follow-up of the First German-Protocol RBFDP in a Japanese Patient
*Tomonari Okawa1,2, Katsunori Watanabe1, Kentaroh Nakamura1,2, Yasunori Ayukawa2 (1. Tokai Branch , 2. Section of Implant and Rehabilitative Dentistry, Division of Oral Rehabilitation, Faculty of Dental Science, Kyushu University)
[Objective]
All-ceramic resin-bonded fixed dental prostheses (RBFDPs) are predictable, minimally invasive options in Western dentistry1). However, success data is predominantly from Caucasian populations. Given documented morphological differences in tooth structure between Caucasians and East Asians (Japanese), the long-term efficacy of RBFDPs in the Japanese population remains underevaluated. This report assesses the eight-year outcome of the first RBFDP case applied to a Japanese patient using the strict German protocol, verifying its utility for congenital tooth agenesis in this demographic2).
[Methods]
A 41-year-old male dentist, with congenital missing right maxillary lateral incisor and microdontic left incisor, sought aesthetic improvement. Following informed consent, a single-retainer RBFDP based on the German protocol was executed. The patient has been strictly followed under a rigorous maintenance protocol for eight years.
[Results and Discussion]
The long-term stability of RBFDPs is attributed to rigorous protocol adherence optimized for Western anatomy. This case addressed whether the protocol achieves identical function in East Asian patients with differing dental morphology.Over the 8-year medium-term follow-up, the patient experienced no technical or biological complications (e.g., no debonding or marginal inflammation). This favorable outcome suggests the high clinical stability reported for RBFDPs is reproducible in the Japanese oral environment, likely due to precise bonding execution and close collaboration.The successful function over this 8-year period indicates the German-protocol RBFDP method provides Japanese patients with a predictable and useful fixed prosthetic solution in the medium term. Further longitudinal studies in a larger East Asian cohort are necessary to validate its universal applicability.
[Conclusion]
Rigorously adhering to the German RBFDP protocol yielded an extremely stable clinical outcome over eight years in a Japanese patient with congenital lateral incisor agenesis. This technique is a highly useful, minimally invasive, fixed prosthetic option for this demographic.
[References]
1) Kern M, et al. Resin-bonded fixed dental prostheses: State of the art. Journal of Dentistry 2017.
2) Ishida Y, et al. Frequency of congenitally missing permanent teeth in Japanese individuals: a retrospective review of the literature. Pediatric Dental Journal 2017.
All-ceramic resin-bonded fixed dental prostheses (RBFDPs) are predictable, minimally invasive options in Western dentistry1). However, success data is predominantly from Caucasian populations. Given documented morphological differences in tooth structure between Caucasians and East Asians (Japanese), the long-term efficacy of RBFDPs in the Japanese population remains underevaluated. This report assesses the eight-year outcome of the first RBFDP case applied to a Japanese patient using the strict German protocol, verifying its utility for congenital tooth agenesis in this demographic2).
[Methods]
A 41-year-old male dentist, with congenital missing right maxillary lateral incisor and microdontic left incisor, sought aesthetic improvement. Following informed consent, a single-retainer RBFDP based on the German protocol was executed. The patient has been strictly followed under a rigorous maintenance protocol for eight years.
[Results and Discussion]
The long-term stability of RBFDPs is attributed to rigorous protocol adherence optimized for Western anatomy. This case addressed whether the protocol achieves identical function in East Asian patients with differing dental morphology.Over the 8-year medium-term follow-up, the patient experienced no technical or biological complications (e.g., no debonding or marginal inflammation). This favorable outcome suggests the high clinical stability reported for RBFDPs is reproducible in the Japanese oral environment, likely due to precise bonding execution and close collaboration.The successful function over this 8-year period indicates the German-protocol RBFDP method provides Japanese patients with a predictable and useful fixed prosthetic solution in the medium term. Further longitudinal studies in a larger East Asian cohort are necessary to validate its universal applicability.
[Conclusion]
Rigorously adhering to the German RBFDP protocol yielded an extremely stable clinical outcome over eight years in a Japanese patient with congenital lateral incisor agenesis. This technique is a highly useful, minimally invasive, fixed prosthetic option for this demographic.
[References]
1) Kern M, et al. Resin-bonded fixed dental prostheses: State of the art. Journal of Dentistry 2017.
2) Ishida Y, et al. Frequency of congenitally missing permanent teeth in Japanese individuals: a retrospective review of the literature. Pediatric Dental Journal 2017.