Skeletal Class III Correction Using Rme and Facemask Therapy
Mcqueen Mendonce (Reader) Dr. Krishna Nayak US (Principal and Dean) Department Of Orthodontics, A B Shettty Memorial Institute of Dental Science, Mangalore
A female patient aged 17 years reported with the chief complaint of forwardly placed lower jaw and highly placed upper front teeth.. Extra-oral examination revealed a concave facial profile,anterior facial divergence with Class III relation of the apical bases.The Maxilla appeared to be retrusive while the Mandible was in line in relation to the Cranial base.
Pretreatment Extraoral Photographs
Pretreatment Intraoral Photographs
Intra-oral examination revealed a constricted V shaped upper arch with crowding and highly placed canines and an average symmetrical U shaped mandibular arch with lower anterior crowding.The Overjet and Overbite were -4mm and -3mm respectively.The molars were in Angles Class III relation and the canines were in end on relationship bilaterally.The upper dental midline was shifted to the left by1.5mm.
The Cephalometric values indicated a retrusive maxilla (SNA=74degrees),normal mandible (SNB=80degree) ,and a Frankfurt Mandibular plane angle of 28 degrees.
It was diagnosed to be a case of Skeletal Class III with constricted maxillary arch resulting in posterior crossbite ,anterior open bite along with Angles Class III Molar and end on Canine relationship.
The Treatment Objectives were correction of the bilateral dental crossbite and crowding in the upper arch,bringing down the highly placed canines into the arch, correction of anterior open bite and obtaining optimum overjet and overbite,correction and maintainance of Class I Molar and Canine Relation and achieving a pleasing facial profile and soft tissue balance.
The Treatment was planned for an initial orthopedic appliance phase with Rapid Maxillary expansion and Facemask therapy followed by fixed orthodontic therapy using MBT mechanics in 022 slot and finishing and detailing.
Orthopedic Appliance Therapy with Rapid Maxillary Expander and Facemask
Midtreatment Intraoral Photographs
Post treatment Extraoral Photographs
Post treatment Retention Intraoral Photographs
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How to cite this article
Dr.Upasak Mukherjee Dr. Skeletal Class III Correction Using Rme and Facemask Therapy. Guident. 2017 Dec;11(1). Available from: https://guident.in/articles/orthodontics/skeletal-class-iii-correction-using-rme-and-facemask-therapy.html
