摘要
目的研究安Ⅱ^1错合青少年颞下颌关节（TMI）髁突在关节凹内的位置和盘-突关系以及髁突位置和盘突关系之间的相关关系，探讨安Ⅱ^1是否存在一定的TMJ病理结构。方法29例安Ⅱ^1错合青少年（男14例，女15例），平均年龄10．8±1．1岁（8．1—13．0岁）；摄取58侧TMJ的磁共振（MRI）片，测量分析突）窝、盘一突关系，与正常值相比较，并对髁突位置与盘突关系进行相关分析。结果反映髁突位置的JSI，Ca-Ti值与正常值之间有显著差异（P〈0．05），显示髁突处于前移位；反映盘突关系的各测量值稍比正常值前位，但差异无显著性；髁突位置与盘突关系相关系数多在0．013-0．213之间；盘前移位组与盘正常组的髁突位置差异无显著性。结论安Ⅱ^1错合青少年髁突位置呈前移位，关节盘相对髁突偏前位但在正常生理范围内；未发现髁突位置与盘突关系之间存在相关关系。
Objective To examine the disc-condyle-fossa relationship in adolescent patients with class Ⅱ division 1 malocclusion. Methods Bilateral sagittal oblique TMJ MRIs in closed mouth obtained from 29 class Ⅱ^1 patients（14 boys and 15 girls, mean age 10. 8±1.1 years） were in cluded. Measurements made on the MRIs were used to calculate means, minimum and maximum values. The values were compared with normative values. In addition, the correlation coefficients between condyle position and disc position values were calculated. Results Bilateral condyles were both positioned anteriorly （p〈 0. 05 ）. The correlation coefficients between condyle position and disc position in the range of 0. 013-0. 213（except one variable）. No significant difference between disc shift group and disc normal group was found. Conclusion In the TMJ of class Ⅱ^1 malocclusion adolescents, the condyle was positioned anteriorly and the disccondyle relationship was normal. There was no correlation between disc position and condyle position.
出处
《口腔正畸学》
2006年第1期30-33,共4页
Chinese Journal of Orthodontics
