A comparative assessment of the amount and rate of orthodontic space closure toward a healed vs recent lower premolar extraction site.

ABSTRACT:

Objectives

To investigate and compare the amount and rate of space closure and tooth tipping during orthodontic space closure toward a recent vs healed first premolar extraction site.

Materials and methods

The mandibular arches of 23 patients were included. Treatment plans included lower first premolar extractions. After reaching 0.019 × 0.025-inch stainless-steel archwires (SSAW), patients were subdivided into two groups (Group 1: space closure was carried out toward a healed first premolar extraction space and Group 2: space closure was carried out immediately after first premolar extraction). Elastomeric power chain from second molar to second molar was used to close lower extraction spaces. The following time points were defined: T1: just before space closure; T2-T4: 1-3

SUBMITTER: Abu Alhaija ES 

PROVIDER: S-EPMC9235382 | biostudies-literature | 2022 Jul

REPOSITORIES: biostudies-literature