Unilateral Scissor Bite Managed with Prefabricated Functional Appliances in Primary Dentition-A New Interceptive Orthodontic Protocol.

Authors

Chaypat Simsuchin, Yong Chen, Shuying Huang, Sreekanth Kumar Mallineni, Zhihe Zhao, Urban Hagg, Colman McGrath

Published in

Children (Basel, Switzerland). Volume 8. Issue 11. Oct 24, 2021. Epub Oct 24, 2021.

Abstract

A unilateral scissor bite is a type of severe malocclusion in primary dentition that can influence the development of the mandible and face. The present case report describes an interceptive treatment on a 4-year-old girl with a unilateral scissor bite combined with an anterior crossbite, increased reverse overjet, and overbite on a skeletal Class III base. The patient was treated with a new Prefabricated Functional Appliance (PFA) which was modified from a Frankel-III appliance to induce a mandible to move backwards and relieve an occlusion discrepancy of the dental arch, and a functional dental rehabilitation with resin and myofunctional exercises with a PFA which was modified from an oral screen appliance were performed during the treatment. The total treatment time was 11 months and a satisfactory improvement of occlusion and facial esthetics was achieved. This case report presents a new PFA system and treatment protocol in primary dentition which results in a favorable outcome, and the clinical effectiveness of this appliance system warrants further investigation.

PMID:
34828670
Bibliographic data and abstract were imported from PubMed on 13 Sep 2026.

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