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Shigaku

, Volume 86, Issue 1, pp 7–18 | Cite as

Pantographic reproducibility of mandibular border movements in patients with craniomandibular disorders

  • Kozo Koyanagi
  • Yasuo Hatano
  • Yoshitsugu Marumo
  • Shigeo Yokozuka
Article
  • 41 Downloads

Abstract

The change of the reproducibility of maximum border movements in patients with CMD has been studied in the United States. Clayton and others reported a change of PRI, pantographic reproducibility index. There is no information on this in the Japanese population. Also, there is found no study on each section of a scribed line, pantographic reproducibility value (PRV). The purpose of this study is to analyze each section’s characteristics with a Japanese population. 30 craniomandibular disorder patients were used in study. The Denar pneumatic pantograph has used. The average PRI before treatment was 35.5 and after treatment was 14.8 Statistically significant correlation (r=0.56) was found in PRI between before and after treatment. All 12 sections showed a stasistically significant difference in PR value between before and after treatment. Sensitive sections were: 1. posterior horizontal rotating path early part; 2. posterior horizontal orbiting path later part; 3. posterior horizontal rotating path later part.

Key words

Pantograph Craniomandibular Disorders PRI Japanese TMD Pantographic Reproducibility Splint therapy Pantographic Change Pantographic Reproducibility Value (PRV) 

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Copyright information

© The Society of the Nippon Dental University 1998

Authors and Affiliations

  • Kozo Koyanagi
    • 1
  • Yasuo Hatano
    • 1
  • Yoshitsugu Marumo
    • 1
  • Shigeo Yokozuka
    • 1
  1. 1.Department of Crown and BridgeThe Nippon Dental University School of Dentistry at TokyoTokyoJapan

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