# Effect of implant tilt and trans-mucosal abutment angulation as influencing stress pattern: An FEA study

## TL;DR

This study uses computer modeling to show how implant tilt and abutment angulation affect stress around dental implants, finding that mismatched angles increase stress and could reduce success.

## Contribution

The novel contribution is the systematic FEA analysis of how implant tilt and abutment angulation interact to influence stress patterns in tilted dental implants.

## Key findings

- Matched implant and abutment angulations result in more uniform stress distribution.
- Angular mismatches greater than 5° significantly increase stress in abutments and crestal bone.
- Implant tilts beyond 30° with mismatched abutments may compromise biomechanical stability.

## Abstract

The effect of implant tilt and transmucosal abutment angulation on stress distribution around tilted dental implants in a simulated
maxillary arch using Finite Element Analysis (FEA). Eight 3D models with varying implant tilts (17°, 25°, 30°, 35°) and
abutment angulations (17°, 30°) were analyzed under a 200 N vertical load. Matched angulations (e.g., 17°/17°,
30°/30°) showed more uniform and favorable stress distribution. Angular mismatches greater than 5° significantly increase
stress in abutments and crestal bone. Implant tilts beyond 30° combined with mismatched abutments may compromise biomechanical
stability and prosthetic success.

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Source: https://tomesphere.com/paper/PMC12859348