Intrusión de molares superiorescon orto-implantes. Evaluación del nivel de adherencia gingival y Remodelado óseo
2013
The purpose of this study was to evaluate changes in the gingival attachment level and the alveolar bone remodeling in over-erupted upper molars intruded with orthodontic mini-implants. Six subjects were selected for the study. Two mini-implants were placed and a 150-Newtons force was applied. The gingival probing results, simplified oral hygiene index, papillary bleeding index, and parallel periapical radiographs taken at the beginning (T1) with those taken at the end (T2) of treatment were compared. The amount of intrusion, gingival attachment level, plaque control, root resorption, and remodeling of the alveolar bone crest and maxillary sinus floor were compared. The length of intrusion, gingival attaching level, plaque control, root resorption and alveolar bone crest as well as maxillary sinus floor were measured. The average of intrusion obtained was 2.41+/-0.64 mm. over a mean period of 8.67+/-2.94 months. There were no statistically significant differences between initial and final measures for gingival attachment level, root resorption, and remodeling of the alveolar bone crest. It was concluded that molar intrusion therapy with orthodontic mini-implants is an efficient procedure that produces no adverse effects on gingival health, allows remodeling of the alveolar bone crest and the maxillary sinus floor, without resorption on the molar roots.
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