Present: the Use of Mini-Implants in Modern Orthodontics for Distalization of Molars

Objective: To assess volume loss during treatment of Class II occlusion pathology according to Engle using appliances supported by miniscrews. Materials and methods: Pubmed, Scopus and review articles were included in the comprehensive search. The methodological quality of retrospective studies was assessed using the Quantitative Research Quality Assessment Tool developed for the Effective Public Health Practice project, and prospective studies were assessed using the Newcastle-Ottawa Scale. Results. We found a total of 14 articles that met the inclusion criteria. The quality of all 4 retrospective studies was rated as moderate according to the quality assessment tool, while some studies were rated as better than others according to the Newcastle-Ottawa scale. There were 7 studies that received high scores and 3 studies that received medium scores. The mean variation in molar distalization scores ranged from 1.8 mm to 6.4 mm and molar distal inclination from 1.65° to 11.3°, while premolars and incisors ranged from 1.75 mm to 5.4 mm and 0.1 mm to 2.7 mm, respectively. Conclusions: Miniscrew-supported appliances are quite effective for distalization of molars with distal movement of premolars with minimal loss of anchorage (anchor fixation) and distal inclination of molars.