Correction of a Class III Malocclusion with a Functional Shift and Severe Crowding

A forward functional shift of the mandible is a significant problem that can cause both functional and aesthetic complications for many patients. This shift usually occurs in growing patients, and it is unusual to see in adult patients. This case report shows an adult patient with a forwarding funct...

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Main Authors: Yahya A. Alogaibi, Ahmad A. Al-Fraidi, Manar K. Alhajrasi, Ali A. Hassan
Format: Article
Language:English
Published: Wiley 2020-01-01
Series:Case Reports in Dentistry
Online Access:http://dx.doi.org/10.1155/2020/8867130
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author Yahya A. Alogaibi
Ahmad A. Al-Fraidi
Manar K. Alhajrasi
Ali A. Hassan
author_facet Yahya A. Alogaibi
Ahmad A. Al-Fraidi
Manar K. Alhajrasi
Ali A. Hassan
author_sort Yahya A. Alogaibi
collection DOAJ
description A forward functional shift of the mandible is a significant problem that can cause both functional and aesthetic complications for many patients. This shift usually occurs in growing patients, and it is unusual to see in adult patients. This case report shows an adult patient with a forwarding functional shift that caused both anterior and posterior crossbites with a pseudo class III dental and skeletal relationship. The patient also showed severe upper arch crowding with blocked-out canines and mild crowding in the lower arch. The treatment of this patient involved extraction of the upper right and left first premolars and the lower right first premolar, followed by opening of the bite to relieve the neuromuscular reflex of the forward protrusion of the mandible during centric occlusion and to correct both the anterior and posterior crossbites. Extraction spaces were closed using class III elastics and elastomeric chains. At the end of the treatment, good functional and aesthetic results were obtained after the elimination of the forward functional shift.
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spelling doaj-art-49901e26f05b4cbd91aa7391410ead172025-02-03T01:28:35ZengWileyCase Reports in Dentistry2090-64472090-64552020-01-01202010.1155/2020/88671308867130Correction of a Class III Malocclusion with a Functional Shift and Severe CrowdingYahya A. Alogaibi0Ahmad A. Al-Fraidi1Manar K. Alhajrasi2Ali A. Hassan3Bisha Dental Center, Ministry of Health, P.O. Box 418, Bisha 61922, Saudi ArabiaDepartment of Orthodontic, King Fahad Hospital, Specialized Dental Center, Madina, Saudi ArabiaDepartment of Orthodontic, North Jeddah Specialty Dental Center, MOH, Jeddah, Saudi ArabiaAlfarabi Private College, Jeddah, Western Region, Saudi ArabiaA forward functional shift of the mandible is a significant problem that can cause both functional and aesthetic complications for many patients. This shift usually occurs in growing patients, and it is unusual to see in adult patients. This case report shows an adult patient with a forwarding functional shift that caused both anterior and posterior crossbites with a pseudo class III dental and skeletal relationship. The patient also showed severe upper arch crowding with blocked-out canines and mild crowding in the lower arch. The treatment of this patient involved extraction of the upper right and left first premolars and the lower right first premolar, followed by opening of the bite to relieve the neuromuscular reflex of the forward protrusion of the mandible during centric occlusion and to correct both the anterior and posterior crossbites. Extraction spaces were closed using class III elastics and elastomeric chains. At the end of the treatment, good functional and aesthetic results were obtained after the elimination of the forward functional shift.http://dx.doi.org/10.1155/2020/8867130
spellingShingle Yahya A. Alogaibi
Ahmad A. Al-Fraidi
Manar K. Alhajrasi
Ali A. Hassan
Correction of a Class III Malocclusion with a Functional Shift and Severe Crowding
Case Reports in Dentistry
title Correction of a Class III Malocclusion with a Functional Shift and Severe Crowding
title_full Correction of a Class III Malocclusion with a Functional Shift and Severe Crowding
title_fullStr Correction of a Class III Malocclusion with a Functional Shift and Severe Crowding
title_full_unstemmed Correction of a Class III Malocclusion with a Functional Shift and Severe Crowding
title_short Correction of a Class III Malocclusion with a Functional Shift and Severe Crowding
title_sort correction of a class iii malocclusion with a functional shift and severe crowding
url http://dx.doi.org/10.1155/2020/8867130
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AT ahmadaalfraidi correctionofaclassiiimalocclusionwithafunctionalshiftandseverecrowding
AT manarkalhajrasi correctionofaclassiiimalocclusionwithafunctionalshiftandseverecrowding
AT aliahassan correctionofaclassiiimalocclusionwithafunctionalshiftandseverecrowding