INTRODUCTION The purpose of this study was to evaluate the efficiency of corticotomy-facilitated orthodontics and piezocision in rapid canine retraction. METHODS The sample consisted of 20 patients (15-25 years old) with Class II Division 1 malocclusions. The suggested treatment plan was extraction of the maxillary first premolars with subsequent canine retraction. The sample was divided into...

background: selective alveolar corticotomy is defined as an intentional injury to cortical bone. this technique is an effective means of accelerating orthodontic tooth movement. the aim of this study is to evaluate the effect of buccal corticotomy in accelerating maxillary canine retraction. materials and methods: the sample in this clinical trial study consisted of 15 adult female patients wit...

OBJECTIVE The aims of this study were to compare different surgical approaches to rapid canine retraction by designing and selecting the most effective method of reducing resistance by a three-dimensional finite element analysis. MATERIAL AND METHODS Three-dimensional finite element models of different approaches to rapid canine retraction by reducing resistance and distraction were establish...

Abstract:
 Objectives: This work aimed to determine the stress distribution around a mini-implant during dynamic canine retraction utilizing continuous and intermittent orthodontic forces three-dimensional finite element model.
 Materials Methods: Establishing model of retraction. The incorporates mini-implant, alveolar bone, maxillary teeth, closed coil spring, an elastic chain. They...

BACKGROUND Gingival Crevicular Fluid (GCF) changes occur during orthodontic tooth movement and this could serve as a potential indicator to the response to active treatment. AIM The objective of the study is to assess the changes in the GCF volume and the levels of Alkaline Phosphatase (ALP) during early phase of tooth movement. METHODS 20 patients requiring all first premolar extractions w...

OBJECTIVE To compare dental and skeletal anchorages in mandibular canine retraction by means of a stress distribution analysis. METHODS A photoelastic model was produced from second molar to canine, without the first premolar, and mandibular canine retraction was simulated by a rubber band tied to two types of anchorage: dental anchorage, in the first molar attached to adjacent teeth, and ske...

A study was undertaken, using Panorex radiographs, to examine the effect on alveolar bone o f the time interval between the extraction o f a tooth and the commencement o f active tooth movement into the extraction site. There were 3 experimental groups o f 25 subjects each, namely, no treatment; active canine retraction begun within 3 weeks o f extraction o f the first premolar; and active cani...

Introduction: Rapid canine retraction through distraction of the periodontal ligament is a tooth movement technique that allows space closure of first premolar extraction space within a period of two to three weeks while providing significant reduction in orthodontic treatment time. Objective: To propose changes in the original surgical technique and in the placement of distractors. Conclusions...