Study of masticatory function in cleft lip and/or palate patients after secondary PMCB graft

唇裂和/或腭裂患者二次 PMCB 移植后咀嚼功能的研究

• 批准号: 06671988
• 负责人: KOCHI Shoko
• 金额: $ 1.28万
• 依托单位: TOHOKU UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1994
• 资助国家: 日本
• 起止时间: 1994 至 1996
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-06671988/
• 关键词: cleft lip and; or palate; mandibular movement; mandibular kinegiograph; masticatory capacity; orthodontic treatment; PMCB graft; 骨移植; 顎裂

We used a mandibular kinegiograph (MKG) to evaluate mandibular movement. Tracings 10 variables of three major movements of the mandible, that is, habitual opening and closing stroke, rapid opening and closing stroke, and rest position, were recorded and assesed by pattern analysis. Furthermore, the intensity of mandibular movement disorder was classified and evaluated by scoring the 10 variables of three major mandibular movement on a scale of from 0 to 10. We named this summed score total mandibular kinetic score (TMK score). A group of patients with unilateral cleft lip and palate who had been performed orthodontic treatment at the Clinics for Maxillo-Oral Disorders. Tohoku University Dental Hospital (UCLP group), and non-cleft volunteers (control group) were studied by means of TMK score analysis. There were more patients who had the mandibular movement disorders in UCLP group. In the in dividual pattern analysis of habitual opening and closing stroke, rapid opening and closing stroke, and rest position, aberrant movement pattern were seen in the UCLP group than in the contral group. The mean TMK score in UCLP group was significantly higer than that in control group. We also studied the masticatory capacity both in cleft lip and/or palate patients, especially those who received orthodontic treatment and in non-cleft young volunteers. The masticatory capacity was measured using ATP granules in accordance with Masuda's extinction method (1982). The lower mean value of masticatory capacity was foundin the patients group compared with in non-cleft control group. This study showed that the young patients with cleft lip and/or palate acquired lower masticatory function after orthodontic dental rehabilitation and the analysis of mandibular movement was important in the orthodontic care of cleft lip and/or palate patients.

我们使用下颌运动记录仪（MKG）来评估下颌运动。记录下颌骨习惯性开合笔画、快速开合笔画和静止位置3种主要运动的10个变量的轨迹，并采用模式分析法进行评价。此外，通过对下颌三大运动的10个变量进行评分，从0到10分，对下颌运动障碍的强度进行分类和评估。我们将这一总分命名为下颌运动总分（TMK）。一组单侧唇腭裂患者在上颌口腔疾病诊所接受了正畸治疗。采用TMK评分分析方法对东北大学口腔医院（UCLP组）和非唇腭裂志愿者（对照组）进行研究。UCLP组出现下颌运动障碍的患者较多。在习惯性开合动作、快速开合动作和休息姿势的个体模式分析中，UCLP组的运动模式比对照组出现异常。UCLP组TMK平均评分显著高于对照组。我们还研究了唇裂和/或腭裂患者的咀嚼能力，特别是那些接受正畸治疗的患者和非唇裂的年轻志愿者。用ATP颗粒测定咀嚼能力，方法参照Masuda’s extinction method（1982）。患者组咀嚼能力均值低于正常对照组。本研究表明，年轻唇腭裂患者在牙齿正畸康复后获得了下咀嚼功能，下颌运动分析在唇腭裂患者正畸护理中具有重要意义。