Orthodontic therapy of malocclusion with congenital individual mandibular incisor lossing / 实用口腔医学杂志

ABSTRACT

Objective:To study the technique of treatment of ma lo cclusion with congenital individual missing lower incisor . Method s Ten cases of malocclusion(male 3, femal 7) with congenital missi ng lower incisor were selected. The casts and cephalograms of pretreatment and posttreatment were measured and analysed respectively. The malocclusions were corrected by changing the position of jaws and teeth. Stripping, extraction and so on were applied in the treatment for the achievement of normal overjet and ov erbite according to the Bolton index. Results: Intercusp al bite, normal overjet and overbite were achieved in the ten cases. The majorit y of lower anterior teeth were anteversion. The width between lower canines decr eased. Conclusion: Satisfactory occlusion can be achieve d by orthodontic treatment in the patients of malocclusion with congenital indiv idual lower incisor missing.