<abstract xmlns="http://www.w3.org/1999/xhtml"><sec><h3>Introduction</h3><p>A Class II malocclusion is a common orthodontic problem that may affect social acceptance and the self-esteem of the patient. The aim of the present study was to evaluate the effect of functional appliance therapy on the oral health-related quality of life (OHRQOL) of patients presenting with a skeletal Class II malocclusion due to mandibular deficiency.</p></sec><sec><h3>Methods</h3><p>Forty-nine patients (11 to 14 years old) with a Class II malocclusion due to mandibular deficiency were included as the experimental group. A control group of 49 subjects was selected from school children without malocclusion. The Child Oral Impact on Daily Performance (Child-OIDP) index was administered, repeated and differences were evaluated following functional therapy using the Clark Twin Block appliance.</p></sec><sec><h3>Results</h3><p>At baseline, the most common oral impact on daily performance in the experimental group was emotional stability (35 patients, 71.4%) and smiling without shame (34 patients, 69.4%), which respectively decreased to 12.2% (six cases) and 20.4% (10 cases) after functional therapy. The mean (±SD) of the Child-OIDP Overall Impact score in the experimental group at baseline was 25.94 (±17.84), which significantly decreased to 2.77 (±2.09) after therapy (<italic>p</italic> &lt; 0.001).</p></sec><sec><h3>Conclusion</h3><p>Functional therapy using the Clark Twin Block appliance had a significant effect in improving OHRQOL of children presenting with mandibular deficiency.</p></sec></abstract>

IntroductionA Class II malocclusion is a common orthodontic problem that may affect social acceptance and the self-esteem of the patient. The aim of the present study was to evaluate the effect of functional appliance therapy on the oral health-related quality of life (OHRQOL) of patients presenting with a skeletal Class II malocclusion due to mandibular deficiency.MethodsForty-nine patients (11 to 14 years old) with a Class II malocclusion due to mandibular deficiency were included as the experimental group. A control group of 49 subjects was selected from school children without malocclusion. The Child Oral Impact on Daily Performance (Child-OIDP) index was administered, repeated and differences were evaluated following functional therapy using the Clark Twin Block appliance.ResultsAt baseline, the most common oral impact on daily performance in the experimental group was emotional stability (35 patients, 71.4%) and smiling without shame (34 patients, 69.4%), which respectively decreased to 12.2% (six cases) and 20.4% (10 cases) after functional therapy. The mean (±SD) of the Child-OIDP Overall Impact score in the experimental group at baseline was 25.94 (±17.84), which significantly decreased to 2.77 (±2.09) after therapy (p < 0.001).ConclusionFunctional therapy using the Clark Twin Block appliance had a significant effect in improving OHRQOL of children presenting with mandibular deficiency.

Effect of functional appliance therapy on the quality of life in skeletal Class II malocclusion

Kermanshah University of Medical Sciences

Australasian Orthodontic Journal

This work is licensed under the Creative Commons Attribution 4.0 International License.

IntroductionA Class II malocclusion is a common orthodontic problem that may affect social acceptance and the self-esteem of the patient. The aim of the...

Effect of functional appliance therapy on the quality of life in skeletal Class II malocclusion

Published Online: Jul 20, 2021

Page range: 225 - 231

Received: Aug 01, 2017

Accepted: Aug 01, 2018

DOI: https://doi.org/10.21307/aoj-2020-074

© 2018 Mohammad Moslem Imani et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.