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- 2018
正畸治疗对下颌髁突肥大术后颞下颌关节的影响
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Abstract:
摘要 目的:评价正畸治疗对下颌髁突肥大术后颞下颌关节的影响,并探讨其术后关节的稳定性。方法:下颌髁突肥大高位切除术后转诊患者20例,男8例,女12例,年龄17~34岁,平均21.2岁,采用固定或隐形正畸治疗,种植钉压低患侧上颌后牙。术前、术后及正畸后进行颞下颌关节功能对比,常规拍摄锥形束CT(CBCT),头颅定位侧位片,Tc99m_MDP颌骨计算机体层扫描(SPECT)检查,着重测量关节间隙的改变。结果:术前患侧和健侧比较关节间隙(包括前间隙、上间隙及后间隙)无统计学差异,手术后及正畸后各关节间隙手术侧与非手术侧差异有统计学意义。结论:髁突高位切除术联合术后正确的正畸治疗可以有效改善患者由于髁突肥大导致的颜面及错牙合畸形以及由此引发的颞下颌关节障碍,正畸治疗后髁突回到关节窝正常位置,患侧髁突改建,稳定性较好
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