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. 2025 Jun;17(Suppl 2):S1832-S1835.
doi: 10.4103/jpbs.jpbs_1946_24. Epub 2025 Jun 18.

Evaluation of Loading Stresses on Multiunit Abutments in Short Implants - An In vitro Study

Rathika Jeyaram Moorthy  1 , Sharmila Hussain  2 , Ponsekar Abraham  1 , Jayshri Nandanwar  3 , M Aarti Rajambigai  4 , Abhishek Dwivedi  5
Affiliations

Evaluation of Loading Stresses on Multiunit Abutments in Short Implants - An In vitro Study

Rathika Jeyaram Moorthy et al. J Pharm Bioallied Sci. 2025 Jun.

Abstract

Aim: 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.

Materials and methods: 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.

Results: The data were analyzed with one-way analysis of variance (ANOVA) and Tukey's Post Hoc test. A significant difference was noted between the groups (P ≤ 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.

Conclusion: 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.

Keywords: Abutments; fatigue failure; short implants.

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Conflict of interest statement

There are no conflicts of interest.

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