# Effect of repeated autoclaving on implant abutments from genesis and bredent dental implant systems

## TL;DR

This study examines how repeated autoclaving affects the connection between titanium implant abutments and their implants from two dental systems.

## Contribution

The study provides new empirical data on the impact of repeated autoclaving on the marginal gaps and surface roughness of implant-abutment systems.

## Key findings

- Repeated autoclaving increases marginal gaps and surface roughness in both Genesis and Bredent implant abutments.
- Genesis abutments showed the highest mean marginal gaps after the first autoclave cycle.
- Statistically significant differences were observed in marginal gaps between the first and second autoclave cycles.

## Abstract

The effect of repeated autoclaving on the implant-abutment connection of titanium abutments from Genesis and Bredent dental implant
systems is of interest to dentists. 40 screw-retained titanium implant abutments from Genesis and Bredent were divided into four groups
of ten. Each implant was secured with an abutment using screws. Abutments were prepared for the first 30-minute autoclave cycle at 121°C.
After the first autoclave cycle, the abutments were fitted onto their implant systems and examined under a scanning electron microscope
(SEM). Intra-group comparison between marginal gaps of Genesis and Bredent groups at 1st autoclave and 2nd autoclave observed statistically
significant differences respectively (p<0.05). Genesis group showed highest mean values for buccal and mesial sides (2.7) and lingual
and distal sides (2.8) with statistically significant differences. Marginal gap and surface roughness increased with autoclaving for
both Genesis and Bredent group of implant abutment systems.