Maxillary molar distalization therapy in adult patients: a multicentre study

• DOI: 10.1111/ocr.12098
• Publication Date: 2015-05-13T03:38:56Z
• Authors: M. Fontana; M. Cozzani; S. Mutinelli; R. Spena; A. Caprioglio
• Keywords: Adult; Male; Adolescent; Rotation; Tooth Movement Techniques; Cephalometry; Vertical Dimension; Mandible; Malocclusion, Angle Class II; Molar; Incisor; Young Adult; 03 medical and health sciences; 0302 clinical medicine; Maxilla; Orthodontic Anchorage Procedures; Humans; Female; Adult patients; Class II malocclusion; Distalizing devices; Molar distalization; Non-compliance; Adolescent; Adult; Cephalometry; Female; Follow-Up Studies; Humans; Incisor; Male; Malocclusion, Angle Class II; Mandible; Maxilla; Molar; Orthodontic Anchorage Procedures; Retrospective Studies; Rotation; Tooth Movement Techniques; Vertical Dimension; Young Adult; Follow-Up Studies; Retrospective Studies

Structured AbstractObjectivesTo evaluate dento‐skeletal changes following conventional anchorage molar distalization therapy in adult patients.Setting and sample populationThirty‐three patients (25 women, mean age 23 years 1 months ± 3 months; 8 men, mean age 28 years 3 months ± 7 months) were recruited from 4 Board Certified specialists. All subjects underwent molar distalization therapy using intra‐oral distalizing appliances.Subjects and methodsCephalometric headfilms were available for all subjects before (T1) and at the end of comprehensive treatment (T2). The initial and final measurements and treatment changes were compared by means of a paired t‐test.ResultsMean total treatment time was 3 years 2 months ± 6 months. Maxillary first molar distalized 2.9 ± 0.6 mm contributing 64.4% to Class II molar correction, whereas mandibular first molar showed a concomitant mesial movement of 1.6 ± 0.5 mm. Maxillary incisors retroclined an average of 5.8° ± 3.9°, lower incisors proclined 4.1° ± 1.1° and the occlusal plane rotated downwards and backwards 1.8° ± 2.1°. Clockwise rotation of the mandible (1.7° ± 0.5°) and increase in lower facial height (2.5 ± 1.5 mm) were also observed.ConclusionsMaxillary molar distalization therapy can be successfully performed in adult patients despite a slight increase in vertical facial dimension should be considered.