Early correction of class III malocclusion with rapid maxillary expansion and face mask therapy

Abstract

A case report is presented of a class III malocclusion with a class III skeletal pattern and maxillary retrusion. Patient, a 10-year-old boy was treated with an orthopedic face mask in conjunction with rapid maxillary expansion and standard pre-adjusted edgewise appliance. Treatment was completed after 3 years and proved to be stable following the active treatment.

Quick Correction of a Skeletal Class III Maloclussion in Primary Dentition with Face Mask Plus Rapid Maxillary Expansion Therapy

“…Skeletal Class III malocclusions (SCIII) is a growth abnormality related to the craneofacial morphology, which increase with age if left untreated (1)(2)(3). It is characterized by maxillary deficiency and/or mandibular prognathism, accompanied by an anterior crossbite or edgeto-edge incisor relationship, or a dentoalveolar compensation consisting of retroclination of lower incisors and proclination of upper incisors (2,(4)(5)(6); other common features are the presence of narrowed upper arch and posterior crossbite (7). In around 70% of cases, this type of malocclusion exhibits maxillary retrognathism with midface deficiency (3,8).…”

“…Hereditary factors include palate/alveolar clefts as well as other craniofacial syndromes. Environmental factors that may play a significant role are oral habits like mouth breathing, trauma or a forward/downward positioned tongue (1,5,7,9). The reported incidence of the malocclusion varies among the ethnic groups; for example, it is highest in Asians (4-14%), while in Latin-Americans and Afro-americans is 5%, in Europeans 3-8%, and in Caucasians 1-4% (4,5,9,10).…”

“…Diagnosis of the skeletal discrepancy is based on a careful observation of a sequence of facial, occlusal, and cephalometric characteristics; however, in children the diagnostic process may be difficult because this malocclusion is not totally defined, with facial and occlusal features no yet well established (1,10). Thus, the skeletal malocclusion should be distinguished from other similar presentations, including the functional crossbite by occlusal prematurities or pseudo-Class III due to abnormal incisal guidance (1,6,7).…”

“…The interceptive correction of this type of malocclusion in growing children remains as a challenge part of the contemporary pediatric dentistry and orthodontics practice (7). The main treatment approaches recommended in the dental literature for SCIII in children, adolescents and young adults are the maxillary rapid expansion (RME), face masks, functional orthopedic intraoral appliances (e.g.…”

Orthodontic treatment of malocclusion Class III in patients aged 6-12 by Postnikov appliance, face mask and bracket system

“…Актуальную проблему отечественной и зарубежной ортодонтии составляют поиск и разработка новых ортодонтических аппаратов, способов лечения и улучшения качества жизни у детей с мезиальной окклюзией в период смены и после смены зубов [7,10,17,20,25,32]. В зависимости от этиологии, вида и степени выраженности аномалии подходы к комплексной терапии могут быть различными [27,29].…”