Effect of orthodontic extraction of mandibular premolars on third molar angulation after treatment with fixed appliances : A cross-sectional study.

ABSTRACT:

Purpose

Orthodontic treatment involving premolar extractions might improve the angulation of lower third molars, which are the teeth most often impacted. This study analyzes the impact of first/second lower premolar extraction during orthodontic therapy on the angulation of mandibular third molars.

Methods

A total of 120 patients treated non-extraction (n = 40), with extraction of first (n = 40), or second lower premolars (n = 40) were included. The mesiodistal angulation of lower third molars relative to the adjacent tooth and their developmental stage were evaluated from posttreatment orthopantomograms. Between-group differences were statistically evaluated at a significance level of 0.05.

Results

The orthopantomograms of 120 patients (51% female) with a median age

SUBMITTER: Di Giovanni T 

PROVIDER: S-EPMC11496369 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature