The Journal of Advanced Prosthodontics

  • 제1권1호
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  • Pages.26-30
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  • 2009
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  • 2005-7806(pISSN)
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  • 2005-7814(eISSN)
대한치과보철학회 (The Korean Academy of Prosthodonitics)
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Evaluation of TMJ sound on the subject with TMJ disorder by Joint Vibration Analysis

  • Hwang, In-Taek (Department of Prosthodontics, College of Dentistry, Chosun University) ;
  • Jung, Da-Un (Department of Prosthodontics, College of Dentistry, Chosun University) ;
  • Lee, Jae-Hoon (Department of Prosthodontics, College of Dentistry, Chosun University) ;
  • Kang, Dong-Wan (Department of Prosthodontics, College of Dentistry, Chosun University)
  • 발행 : 2009.03.31
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초록

STATEMENT OF PROBLEM. Qualitative and semi-quantitative methods have been developed for TMJ sound classification, but the criteria presented are completely inhomogeneous. Thus, to develop more objective criteria for defining TMJ sounds, electroacoustical systems have been developed. We used Joint vibration analysis in the BioPAK system(Bioresearch Inc., Milwaukee, USA) as the electrovibratography. PURPOSE. The aim of this study was to examine the TMJ sounds with repect to frequency spectra patterns and the integral > 300 Hz /< 300 Hz ratios via six-months follow-up. MATERIAL AND METHODS. This study was done before and after the six-months recordings with 20 dental school students showed anterior disk displacement with reduction. Joint vibrations were analyzed using a mathematical technique known as the Fast Fourier Transform. RESULTS. In this study Group I and Group II showed varied integral > 300 /< 300 ratios before and after the six-months recordings. Also, by the comparative study between the integral > 300 /< 300 ratios and the frequency spectrums, it was conceivable that the frequency spectrums showed similar patterns at the same location that the joint sound occurred before and after the six-months recordings. while the frequency spectrums showed varied patterns at the different locations that the joint sound occurred before and after six-month recordings, it would possibly be due to the differences in the degree of internal derangement and/or in the shape of the disc. CONCLUSIONS. It is suggested that clinicians consider the integral > 300 /< 300 ratios as well as the frequency spectrums to decide the starting-point of the treatment for TMJ sounds.

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피인용 문헌

  1. The reproducibility of temporomandibular joint vibrations over time in the human vol.41, pp.3, 2014, https://doi.org/10.1111/joor.12141
  2. Comparison of TMJ vibration frequencies under different joint conditions vol.33, pp.3, 2015, https://doi.org/10.1179/2151090314Y.0000000019
  3. Temporomandibular joint vibrations from totally asymptomatic subjects vol.34, pp.3, 2016, https://doi.org/10.1179/2151090315Y.0000000013
  4. Distribution of Temporomandibular Joint Vibration Transfer to the Opposite Side vol.30, pp.3, 2009, https://doi.org/10.1179/crn.2012.030
  5. Effect of Different Splint Thicknesses on Occlusal Function and Temporomandibular Joint Sounds: A Clinical Report vol.8, pp.12, 2009, https://doi.org/10.4236/ojst.2018.812031