双侧下颌中切牙双生牙一例王学侠，陶书振患儿男性，８岁零７个月，要求拔除畸形下前牙。口腔检查：替牙。中性，牙列式未见明显龋齿。两下中切牙畸形，冠宽８．５ｍｍ，中央发育沟明显，将切缘一分为二，分别宽约４．０ｍｍ和４．５ｍｍ，两牙间间隙约３．５ｍｍ。患者健... Bilateral mandibular incisors twins teeth a case of Wang Xuexia, Tao Shouzhen children male, 8 years and 7 months, requiring removal of deformity under the anterior teeth. Oral examination: tooth. Neutral, dentition no obvious dental caries. Tooth incision in two under the crown width of 8.5mm, the central development ditch clear, the cut edge is divided into two, respectively, width 4.0mm and 4.5mm, gap between the two teeth is about 3.5mm. Patient health ...