微种植体支抗治疗双颌前突患者前后颜面形态改变的研究

Abstract

Abstract: Abstract: Objective To explore the change regulation of hard and soft tissue and to assess the effect of miniscrew implant anchorage (MIA) on patients with bimaxillary protrusion by digital cephalometric analysis and survey before and after treatment.〖WTHZ〗Methods Soft and hard tissue changes were measured on the lateral cephalometric radiographs of 15 cases with bimaxillary protrusion who were treated with MIA before and after treatment in order to analyze the relevance of hard and soft tissue changes and evaluate the effects of MIA.Patient satisfactory survey was also adopted. Results Patients′ appearances were all significantly improved after the treatment.Adduction of upper incisors was (3.12±0.90) mm,while adduction of lower incisors was (2.63±0.83) mm.The protrusion of upper /lower lip decreased by (3.45±1.19) mm /(2.18±0.38) mm respectively with the increase of nasolabial angle.There were relevant rules between hard and soft tissue change,in which upper and lower lip protrusion and nasolabial angle changes were highly correlated with the change of the anterior incisors protrusion.93.3% patients were satisfied with the treatment result. Conclusions MIA can adduct the upper and lower incisors effectively,as well as improve the face profile and achieve good clinical results.

Key words: miniscrew implant anchorage, bimaxillary protrusion, soft tissues profile, visual analog scale, cephalometric study

CLC Number:

R783.5

Mi Ni. Study of facial changes in the patients of bimaxillary protrusion after orthodontic treatment with micro ?mplant anchorage[J]. , 2014, 34(4): 241-241.

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Study of facial changes in the patients of bimaxillary protrusion after orthodontic treatment with micro ?mplant anchorage

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