Regeneration of Condyle with a Functional Appliance
Regeneration of Condyle with a Functional Appliance
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DOI：
10.1177/0022034513480795
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发表时间：
2013-04-01
影响因子：
7.6
通讯作者：
Tanne, K.
中科院分区：
文献类型：
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作者：
Fujita, T.;Hayashi, H.;Tanne, K.
髁状突切除术后使用功能性矫治器进行髁状突再生已得到验证。然而，治疗过程仍不清楚。在这项研究中，我们评估髁状突再生过程，然后检查下颌骨的生长和咀嚼肌活动再生后在生长的大鼠。将75只4周龄雄性Wistar大鼠随机分为单侧髁突切除组、单侧髁突切除+矫治器组和对照组。髁状突切除后使用功能性矫治器可促进髁状突切除后1周的下颌骨生长和髁状突再生。髁状突切除后8周，髁状突再生显示正常形态。髁状突切除术后咀嚼肌活动不对称。然而，功能性矫治器的使用产生了对称的咀嚼肌活动。这些结果表明，由于使用功能性矫治器，髁状突切除区域的再生过程良好。此外，由于髁状突再生，对称的咀嚼肌活动实现。
Condylar regeneration with the use of functional appliances after condylectomy has been validated. However, the process during treatment remains unclear. In this study, we evaluated the condylar regeneration process and then examined mandibular growth and masticatory muscle activity after regeneration in growing rats. Seventy-five male Wistar rats aged 4 weeks were equally divided into 3 groups: unilateral condylectomy group, unilateral condylectomy + appliance group, or control group. The use of a functional appliance following condylectomy promoted mandibular growth and regeneration of the condyle 1 week after condylectomy. Condyle regeneration showing normal morphology was finally achieved 8 weeks after condylectomy. Asymmetrical masticatory muscle activity was observed after condylectomy. However, the use of a functional appliance produced symmetrical masticatory muscle activity. These results indicate a favorable regeneration process in the condylectomized area due to the use of a functional appliance. In addition, due to condylar regeneration, symmetrical masticatory muscle activity was achieved.