Moorthy Rathika Jeyaram, Hussain Sharmila, Abraham Ponsekar, Nandanwar Jayshri, Rajambigai M Aarti, Dwivedi Abhishek
Department of Prosthodontics and Crown and Bridge, Thai Moogambigai Dental College and Hospital, Chennai, Tamil Nadu, India.
Department of Prosthodontics and Crown and Bridge, Madha Dental College and Hospital, Chennai, Tamil Nadu, India.
J Pharm Bioallied Sci. 2025 Jun;17(Suppl 2):S1832-S1835. doi: 10.4103/jpbs.jpbs_1946_24. Epub 2025 Jun 18.
This study aims to measure the displacement of straight abutment and multiunit abutment with straight abutment after static loading of 200 N at 30-, 40-, and 45-degree angulations.
30 implants were divided into two groups according to the abutment used: Group I - Implant with straight abutments; Group II - Implant with multiunit with straight abutments. Fracture load was determined using a compression load on the abutments with a universal testing machine.
The data were analyzed with one-way analysis of variance (ANOVA) and Tukey's test. A significant difference was noted between the groups ( ≤ 0.05). Short implants adequately took up static loading and may be advocated. Minimum displacement occurred in Groups I and II at static loading of 200 N in 30- and 40-degree angulation, which was statistically significant. Maximum displacement occurred in Groups I and II at static loading of 200 N in 45-degree angulation.
Multiunits may improve the crown height space and reduce stress concentration at implant abutment junction. Within the limits of the study, it may be concluded that short implants may be advocated with straight abutment and/or multiunit with straight abutment.
本研究旨在测量直基台以及带有直基台的多单位基台在30度、40度和45度角度下承受200N静载荷后的位移。
根据所使用的基台，将30颗种植体分为两组：第一组——使用直基台的种植体；第二组——使用带有直基台的多单位基台的种植体。使用万能试验机对基台施加压缩载荷来确定断裂载荷。
数据采用单因素方差分析（ANOVA）和Tukey检验进行分析。两组之间存在显著差异（P≤0.05）。短种植体能够充分承受静载荷，或许值得推荐。在30度和40度角度下承受250N静载荷时，第一组和第二组的位移最小，具有统计学意义。在45度角度下200N静载荷时，第一组和第二组的位移最大。
多单位基台可能会改善冠部高度间隙并减少种植体基台连接处的应力集中。在本研究的范围内，可以得出结论，对于直基台和/或带有直基台的多单位基台，或许推荐使用短种植体。
