Condylar position and its role in the diagnosis and treatment clinically.

doi:10.7504/kq.2015.01.003

Abstract

Abstract:

Abstract：The condylar position should be taken into account in the diagnosis and treatment of condyle fracture，orthognathic surgery，occlusal reconstruction and temporomandibular disorders. The normal condylar position in the glenoid fossa and its clinical significance in the diagnosis and treatment of temporomandibular disorders，for example the disc displacement，will be discussed here through the literature review and the combination of our research findings. Many research data suggested a centric position of condyle in a normal joint，with individually variances. A posterior condylar position might be a risk factor of disc displacement，and on the other hand，the disc displacement might induce condyle to move posteriorly. With the use of anterior repositioning splint for treating anterior disc displacement with reduction，the condyle moved anteriorly and inferiorly，the condyle-disc relationship could be improved immediately. Besides，splint therapy may facilitate regenerative remodeling of condyles.

Key words: condylar position, temporomandibular disorders, anterior disc displacement, occlusal splint

摘要：

临床治疗中，特别是髁突外伤骨折、正颌手术、修复咬合重建、正畸治疗以及在颞下颌关节紊乱病的诊断和治疗中，要考虑髁突在关节窝中的位置变化。本文通过文献回顾，结合我们的研究成果，讨论髁突在关节窝中的正常生理位置及其在颞下颌关节紊乱病特别是关节盘移位的诊断和治疗中的意义。目前多项研究认为，健康成年人髁突平均位置为基本中性，但存在较大变异；髁突后移可能是关节盘前移位的危险因素，关节盘前移位也可导致髁突后移；在关节盘移位的牙合垫治疗中，髁突在牙合垫戴入后显著向前、下移位，可有效改善盘突关系；稳定牙合垫使髁突前下移位不明显，改善盘突关系的效果有限。此外，再定位牙合垫使髁突前下移位还可促进髁突骨质的改建。

关键词: 髁突位置, 颞下颌关节紊乱病, 关节盘前移位, 牙合垫

CLC Number:

Ｒ78

LIU Mu-qing，FU Kai-yuan. Condylar position and its role in the diagnosis and treatment clinically.[J]. Acta Metallurgica Sinica, DOI: 10.7504/kq.2015.01.003.

刘木清，傅开元. 髁突在关节窝中的位置及其在临床诊断治疗中的意义[J]. 中国实用口腔科杂志, DOI: 10.7504/kq.2015.01.003.

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