摘要
目的 :测定单侧完全性唇腭裂患者 (UCLP)双侧后牙的ICP位咬合面积 ,籍以分析其口腔功能状况。方法 :以软蜡片对 2 2例唇腭裂修补术后未经正畸治疗的UCLP患者作牙尖交错位咬合记录 ,以计算机图像分析系统测量其上颌后牙最大咬合面积 ,并与 2 4例正常者的相应结果进行比较。结果 :①正常者其上颌后牙最大咬合面积无性别差异 ,也无左右侧差异 ;②UCLP患者上颌后牙最大咬合面积明显低于正常者 ;③UCLP患者上颌后牙最大咬合面积无性别差异 ,也无裂隙侧与非裂隙侧差异 ;④UCLP患者上颌后牙最大咬合面积降低 ,在牙弓中段双尖牙区最明显。结论 :UCLP严重损害了患者的咬合接触状况 ,是UCLP患者咀嚼功能降低的主要原因 ,应为正畸临床所重视。
Objective:Occlusal contact plays an important roll in masticatory proccedure. It infers to biting force and masticatory performance. In order to analysis the oral function in UCLP, the author tested the occlusal contact areas of upper premolars and molars in UCLP. Methods: 22 UCLP patients (male 13, female 9, permanent teeth) were selected, which had no tempromandibular joint dysfunction. All of them had received plastic surgery treatment and never received orthodontic therapy. Their occlusal contact areas of upper premolars and molars in intercaspid position were recorded by preformed soft wax, and the results were managed by computer with the software of micro image analysis system. All the data were input to computer and be analyzed by statistics. Results: ①In normal people, the occlusal contact areas of upper premolars and molars had no differences in bilateral and in sexual. ②there was no sexual difference in UCLP as that in normal group, and the occlusal contact areas in cleft side or non-cleft side had no difference yet. ③The occlusal contact areas in UCLP were lower than that in normal people. ④The decrease of occlusal contact areas was the most important factor to low masticatory performance in UCLP patients. Conclusion: After plastic surgery in UCLP, orthodontic therapy will improve masticatory contact and contribute to craniofacial esthetic and masticatory function.
出处
《华西口腔医学杂志》
CAS
CSCD
北大核心
2000年第5期343-345,共3页
West China Journal of Stomatology
