上顎前方牽引装置の効果について : とくに, F.K.O., chin cap との比較について

概要

論文の詳細を見る
A study was made on 50 cases of anterior cross bite with underdeveloped maxillary complex ; each case being treated with the maxillary protracting appliance, the activator or the chin cap. 1. In treatment for correction of over jet, the following results were obtained : (a) In using the maxillary protracting appliance, clockwise rotation of mandible and lingual inclination of lower incisors were observed, and anterior maxillary development tended to be more accelerated than the use of the activator or the chin cap ; (b) In using the chin cap, clockwise rotation of mandible and lingual inclination of lower incisors as well as labial inclination of upper incisors were observed, and improvement of relation of the upper and lower jaws were closely related with mandibular plane angle ; (c) In using the activator, labial inclination of upper incisors were remarkably observed and clockwise rotation of mandible was not showed so much as the use of the maxillary protracting appliance or the chin cap. 2. The use of the maxillary protracting appliance showed not only retrogression of lower lip but also protrusion of upper lip, and produced successful effects of getting for better facial profiles than the use of the actvator or the chin cap.
九州歯科学会の論文
1976-11-30