Title
Class II malocclusion treatment effects with Jones Jig and Distal Jet followed by fixed appliances
Date Issued
01 January 2018
Access level
open access
Resource Type
journal article
Author(s)
University of São Paulo
Publisher(s)
Allen Press Inc.
Abstract
Objectives: To compare the skeletal, dentoalveolar, and soft tissue changes in Class II malocclusion patients treated with Jones Jig and Distal Jet distalizers followed by fixed appliances. Materials and Methods: The experimental groups comprised 45 Class II malocclusion subjects divided into two groups. Group 1 consisted of 25 patients treated with the Jones Jig, and group 2 consisted of 20 patients treated with the Distal Jet. Group 3 comprised 19 untreated Class II subjects. Cephalograms were analyzed before and after orthodontic treatment. For intergroup comparisons, one-way analysis of variance and post hoc Tukey tests were performed. Results: During treatment, the experimental groups exhibited significant increases in occlusal plane inclination and maxillary second molar mesial tipping. Additionally, the molar relationship improved and overjet decreased significantly in the experimental groups. The Jones Jig group showed greater mandibular incisor proclination and greater overbite reduction than the control group. No significant intergroup differences in nasolabial angle changes were found. Conclusions: Treatment protocols using the Jones Jig and Distal Jet followed by fixed appliances were effective in correcting Class II malocclusion by means of dentoalveolar changes without significant skeletal and soft tissue changes. The experimental groups showed occlusal plane clockwise rotation and greater mesial tipping of maxillary second molars when compared to the untreated group.
Start page
10
End page
19
Volume
88
Issue
1
Language
English
OCDE Knowledge area
Odontología, Cirugía oral, Medicina oral
Subjects
Scopus EID
2-s2.0-85042312734
PubMed ID
Source
Angle Orthodontist
ISSN of the container
00033219
Sources of information:
Directorio de Producción Científica
Scopus