Effect of customized abutment taper configuration on bone remodeling and peri-implant tissue around implant-supported single crown: A 3D nonlinear finite element study.

Autor: Poovarodom P; Department of Prosthodontics, Faculty of Dentistry, Chiang Mai University, Chiang Mai, Thailand., Rungsiyakull C; Department of Mechanical Engineering, Faculty of Engineering, Chiang Mai University, Muang, Chiang Mai, Thailand., Suriyawanakul J; Faculty of Engineering, Department of Mechanical Engineering, Khon Kaen University, Nai Mueang, Thailand., Li Q; Faculty of Engineering, School of Aerospace, Mechanical and Mechatronic Engineering, The University of Sydney, Sydney, Australia., Sasaki K; Miyagi University, Taiwa, Japan.; Graduate School of Dentistry, Division of Prosthetic Dentistry, Tohoku University, Sendai, Japan., Yoda N; Graduate School of Dentistry, Division of Prosthetic Dentistry, Tohoku University, Sendai, Japan., Rungsiyakull P; Department of Prosthodontics, Faculty of Dentistry, Chiang Mai University, Chiang Mai, Thailand.
Jazyk: angličtina
Zdroj: Journal of prosthodontics : official journal of the American College of Prosthodontists [J Prosthodont] 2024 Oct; Vol. 33 (8), pp. 815-823. Date of Electronic Publication: 2023 Oct 31.
DOI: 10.1111/jopr.13776
Abstrakt: Purpose: The optimal configuration of a customized implant abutment plays a crucial role in promoting bone remodeling and maintaining the peri-implant gingival contour. However, the biomechanical effects of abutment configuration on bone remodeling and peri-implant tissue remain unclear. This study aimed to evaluate the influence of abutment taper configurations on bone remodeling and peri-implant tissue.
Materials and Methods: Five models with different abutment taper configurations (10°, 20°, 30°, 40°, and 50°) were analyzed using finite element analysis (FEA) to evaluate the biomechanical responses in peri-implant bone and the hydrostatic pressure in peri-implant tissue.
Results: The results demonstrated that the rate of increase in bone density was similar in all models. On the other hand, the hydrostatic pressure in peri-implant gingiva revealed significantly different results. Model 10° showed the highest maximum and volume-averaged hydrostatic pressures (69.31 and 4.5 mmHg), whereas Model 30° demonstrated the lowest values (57.83 and 3.88 mmHg) with the lowest excessive pressure area. The area of excessive hydrostatic pressure decreased in all models as the degree of abutment taper increased from 10° to 30°. In contrast, Models 40° and 50° exhibited greater hydrostatic pressure concentration at the cervical region.
Conclusion: In conclusion, the abutment taper configuration had a slight effect on bone remodeling but exerted a significant effect on the peri-implant gingiva above the implant platform via hydrostatic pressure. Significant decreases in greatest and average hydrostatic pressures were observed in the peri-implant tissues of Model 30°. However, the results indicate that implant abutment tapering wider than 40° could result in a larger area of excessive hydrostatic pressure in peri-implant tissue, which could induce gingival recession.
(© 2023 by the American College of Prosthodontists.)
Databáze: MEDLINE
Externí odkaz: