Alogaibi Yahya A, Afify Ahmed R, Al-Fraidi Ahmad A, Hassan Ali A
Bisha Dental Center, Ministry of Health, P.O. Box 418, Bisha 61922, Saudi Arabia.
Department of Orthodontic, King Fahad Hospital, Specialized Dental Center, Madina, Saudi Arabia.
Case Rep Dent. 2020 Sep 7;2020:8825212. doi: 10.1155/2020/8825212. eCollection 2020.
Class III malocclusions present a great challenge for many orthodontists, especially if malocclusions are found in adult patients and alongside other dental problems. This case report shows an adult patient with a skeletal class III anterior crossbite, a unilateral posterior crossbite on the right side, a congenital absence of both lateral incisors and retained deciduous teeth, and shift in the lower midline. The upper retained deciduous teeth and lower premolars were extracted. Leveling and alignment were initiated. Build-up composite resin placed on the first molars allowed for bite opening. The crossbites were corrected by using sequentially larger archwires combined with class III elastics until both the anterior and posterior crossbites were corrected. The impacted upper right canine was exposed using the closed eruption technique and leveled into the position of the upper lateral incisor. Miniscrews were utilized to close the residual spaces. Both canines were reshaped to simulate the upper lateral incisors. At the end of the treatment, good esthetic and functional results were obtained. In conclusion, orthodontic camouflage can be a viable option for treating patients with multiple skeletal and dental problems.
III类错颌对许多正畸医生来说是一个巨大的挑战,尤其是在成年患者中发现错颌并伴有其他牙齿问题时。本病例报告展示了一名成年患者,患有骨性III类前牙反颌、右侧单侧后牙反颌、双侧侧切牙先天性缺失以及乳牙滞留,并且下颌中线偏移。拔除了上颌滞留乳牙和下颌前磨牙。开始进行排齐整平。在第一磨牙上放置复合树脂堆塑以打开咬合。通过依次使用更大尺寸的弓丝并结合III类牵引橡皮圈来纠正反颌,直到前后反颌均得到纠正。采用闭合式萌出技术暴露右上颌埋伏尖牙,并将其排齐至上颌侧切牙位置。使用微型螺钉关闭剩余间隙。将两颗尖牙重塑以模拟上颌侧切牙。治疗结束时,获得了良好的美观和功能效果。总之,正畸掩饰治疗对于治疗患有多种骨骼和牙齿问题的患者可能是一种可行的选择。