Stability of Implant–Abutment Connection in Three Different Systems After Fatigue Test

Abstract

Background: The stability of implant–abutment connections is a critical factor in the long-term success of dental implant systems. This study aimed to assess and compare the stability of implant–abutment connections in three different implant systems (system A, B, C as Adin,nobel biocare and wanecore respectively) following a fatigue test.

Materials and Methods: In this experimental study, a total of 30 specimens (10 for each system) comprising dental implants and abutments were assembled according to the manufacturers' guidelines. These specimens underwent cyclic loading in a fatigue testing machine with a load of 100 N and 100,000 loading cycles to simulate masticatory forces. Micro-movement of the implant–abutment connections was measured using precision instruments before and after the fatigue test. Statistical analysis was performed to compare the stability of the implant–abutment connections among the three systems.

Results: Before the fatigue test, the mean micro-movement values (in micrometers) for System A, System B, and System C were 8.27, 9.51, and 7.91, respectively. After the fatigue test, the mean micro-movement values increased to 9.51, 11.31, and 10.14 for System A, System B, and System C, respectively. Statistical analysis revealed statistically significant differences in micro-movement among the three implant systems both before and after the fatigue test (p < 0.05).

Conclusion: This study demonstrated significant differences in the stability of implant–abutment connections among three different implant systems. System A exhibited the least micro-movement, indicating superior stability, while System B showed the highest micro-movement, suggesting the least stability. These findings underscore the importance of selecting implant systems with robust connections to ensure long-term success and reliability.