Singaraju Gowri Sankar, Mandava Prasad, Chirivella Praveen, Kanabaddy Sridhar Reddy
Department of Orthodontics, Narayana Dental College, Nellore, Andhra Pradesh, India.
Department of Oral Surgery, Narayana Dental College, Nellore, Andhra Pradesh, India.
Natl J Maxillofac Surg. 2018 Jan-Jun;9(1):69-73. doi: 10.4103/njms.NJMS_14_18.
Herewith, a case is reported of an adolescent female patient with maxillary retrognathism due to restricted growth arising out of the previous cheiloplasty and palatoplasty surgeries treated for cleft lip and palate. She also presented an oroantral fistula in the scarred tissues of the palatal region. There was anterior crossbite and distorted occlusion in the anterior segment with crowding and open bite. There is maxillomandibular discrepancy of 6 degrees°. The distraction osteogenesis was performed so as treat the maxillary hypoplasia. This allows undermanding adaptation of the soft-tissue structures to the modification in the skeletal structures as a result of surgical procedures and ensures long-term stability. A custom made intraoral rapid maxillary expansion device was prepared utilizing the hyrax screw for the distraction of the bony segments. At the end of the treatment and a retention period of 24 months, the patient exhibited improved facial profile and hence esthetics.
在此，报告一例青少年女性患者，因既往唇裂和腭裂手术导致生长受限而出现上颌后缩。她在腭部区域的瘢痕组织中还存在口鼻瘘。前段有前牙反合，前牙段咬合紊乱，伴有拥挤和开牙合。上下颌骨差异为6度。进行了牵张成骨术以治疗上颌发育不全。这使得软组织结构能够适应手术过程中骨骼结构的改变，并确保长期稳定性。使用Hyrax螺钉制作了定制的口腔内快速上颌扩弓装置，用于牵张骨段。在治疗结束及24个月的保持期后，患者面部轮廓得到改善，美观度也随之提高。
