Journal of Dental Rehabilitation and Applied Science (구강회복응용과학지)

Korean Academy of Stomatognathic Function and Occlusion (대한턱관절교합학회)
권호 표지

Comparison of the replicability of centric relation registration techniques using Arcus DigmaⓇ

Arcus DigmaⓇ를 이용한 하악 중심위 유도방법에 따른 하악위의 재현성에 관한 비교 연구

  • Lim, Hyun-Pil (Department of Prosthodontics, School of Dentistry, Chonnam National University) ;
  • Cho, Young-Eun (Department of Prosthodontics, School of Dentistry, Chonnam National University) ;
  • Park, Sang-Won (Department of Prosthodontics, School of Dentistry, Chonnam National University)
  • 임현필 (전남대학교 치의학전문대학원 보철학교실) ;
  • 조영은 (전남대학교 치의학전문대학원 보철학교실) ;
  • 박상원 (전남대학교 치의학전문대학원 보철학교실)
  • Received : 2009.05.10
  • Accepted : 2009.09.25
  • Published : 2009.09.30
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Abstract

The purpose of this study was to compare the replicability of centric relation made by means of self guided method, bimanual manipulation, chin-point guidance, leaf gauge method, gothic arch tracing. The EPA test of Arcus $Digma^{(R)}$ was employed for examining the reproducibility of centric relation. 10 adults with normal occlusion were participated in this study. In this limitation of study, the following results were obtained; Condyle position was different depending on different methods of guiding centric relation. Left and right temporomandibular joints showed a little different degree of repeatability. Bimanual manipulation using anterior jig was the most replicable. Chin point guidance provided the second most repeatable method, and Gothic arch tracing showed the third, the leaf gauge was the forth, the self-guided method was the worst.

중심위는 교합적, 교정적, 보존적 관점에서 진단과 치료에 중요한 요소이며, 중심위에 대한 정의와 채득방법에 대하여서는 학자들마다 다양하게 주장하고 있다. 중심위를 채득하는 방법에는 여러 가지가 있고 임상적으로 가장 중요한 부분 중 하나가 재현성과 정확성을 확보하는 것이다. 이에 저자는 중심위 채득시 하악 과두의 운동접번축(kinematic axis)을 인식하는 Arcus $Digma^{(R)}$의 EPA test를 이용하여 중심위 채득 방법에 따른 재현성을 비교하였다. 구강 악안면계의 기능이상이 없으며 교합이 정상이고 치아의 교모 및 마모가 심하지 않은 성인 10명를 대상으로 5가지 중심위 채득 방법 (Self-guided method, Bimanual manipulation, Chin-point guidance, Leaf gauge method, Gothic arch tracer)에 따른 중심위의 재현성을 Arcus $Digma^{(R)}$를 이용하여 비교 연구한 결과 다음과 같은 결론을 얻었다. 첫째, 중심위 채득 방법에 따라 하악과두의 위치는 상이한 양상을 나타냈다. 둘째, 재현성은 bimanual manipulation이 가장 높게 나타났으며 다음으로 chin point guidance, Gothic arch tracer, leaf gauge를 이용한 방법 그리고 unguided method 순이었다. 셋째, 임상에서 양손조작법이나 chin-point guidance이 재현성면에서 비교적 매우 훌륭한 방법이라는 것을 미루어 알 수 있다.

Keywords

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