Resumo (EN)
The objective of this study was to perform a comparative analysis of the fracture resistance of implants, using ISO 14801, as extra-narrow single body implants, narrow single body implants, narrow cone morse implants and and regular cone morse implants. Materials and Methods: The groups were divided into 15 implants each. Group 1: extra-narrow single body implants (Ø 2,5mm); Group 2: narrow single body implants (Ø 3,00mm); Group 3: narrow cone morse implants with solid abutment (Ø 3,5mm); Group 4: regular cone morse implant with solid abutment (Ø 4,0mm). The implants were attached to a test machine to perform the tests. The Shapiro-Wilk, ANOVA one way and Tukey tests (p ≤ 0.05) were applied. After these tests, the samples were analyzed by scanning electron microscopy (SEM) and groups 3 and 4 were analyzed in a profilometer. Results: The groups behaved differently from each other. There was a statistically significant difference in the ANOVA one way variance test, Tukey test (p ≤ 0.05). Group 1- 134,29N(10,27N); Group 2- 300,61N(24,26); Group 3- 360,64N(23,34); Group 4- 419,10N(18,87). Conclusions: The larger the diameter of the implants, the greater their resistance. Extra-narrow and narrow implants may be indicated for incisor rehabilitation.
