대한치과보철학회지 (The Journal of Korean Academy of Prosthodontics)

  • 제40권6호
  • /
  • Pages.560-571
  • /
  • 2002
  • /
  • 0301-2875(pISSN)
  • /
  • 2005-3789(eISSN)
대한치과보철학회 (The Korean Academy of Prosthodonitics)
권호 표지

OPTIMUM MANDIBULAR POSITION GUIDE BY USE OF EMG ACTIVITY AND INTRA-ORAL TRACER

  • Lee Seung-Ho (Department of Prosthodontics, College of Dentistry, Chosun University) ;
  • Kang Dong-Wan (Department of Prosthodontics, College of Dentistry, Chosun University)
  • 발행 : 2002.12.01
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

Jaw relations and the recording methods have been controversial aspects of dentistry. The purpose of this study was to quantify the relative muscle activity of the masseter and temporal muscles in relation to different intermaxillary relations recorded by intra-oral tracer during maximal clenching and to decide the optimal mandibular position. Ten volunteers with healthy TMJ were studied. Intra-oral tracer was assembled and bite block was fabricated in the articulator. Intra-oral tracer was placed in the mouth, and four mandibular positions were recorded. EMG activity was recorded on a BIO-PAK system (Bio-Research Associates, Inc. USA.) in masseter and temporal muscle and compared in each mandibular positions. The results were as follows: 1. In comparison with maximum intercuspation, the chewing position was the most similar followed by tapping position, myocentric position and posterior border position. However the differences were not statistically significant. 2. In comparison of bilateral symmetry of masseter muscle, tapping position was the most symmetrical followed by chewing position and maximum intercuspation. Myocentric position and posterior border position were not symmetrical. (P<.05). 3. In comparison of bilateral symmetry of anterior temporal muscle, chewing position was the most symmetrical followed by posterior border position, maximum intercuspation, myocentric position and tapping position. However the differences were not statistically significant. 4. In comparison of proportionality of anterior temporal muscle to masseter muscle activity on left side, posterior border position was the greatest followed by myocentric position, taping position, chewing position and maximum intercuspation. And the proportionality of posterior border position was greater than that of maximum intercuspation. (P<.05). 5. In comparison of proportionality of anterior temporal muscle to masseter muscle activity on right side, myocentric position was the greatest followed by posterior border position, tapping position, maximum intercuspation and chewing position. However the differences were not statistically significant.

키워드

참고문헌

  1. Azarbal M. Comparison of Myo-Monitor centric position to centric relation and centric occlusion, J Prosthet Dent. 1977;38:331-37 https://doi.org/10.1016/0022-3913(77)90311-0
  2. Woelfel JB. New device for accurately recording centric relation. J Prosthet Dent. 1986;56:716-27 https://doi.org/10.1016/0022-3913(86)90152-6
  3. Jankelson RR. Neuromuscular dental diagnosis and treatment. Ishiyaku EuroAmerica Inc Publishers, 1990
  4. Jimenz ID. Electromyography of masticatory muscles in three jaw registration positions. Am J Orthod Dentofacial Orthop. 1989;95:282-88 https://doi.org/10.1016/0889-5406(89)90160-1
  5. Kantor ME, Silverman SI, Garfinkel L. Centric relation recording techniques: a comparative investigation. J Prosthet Dent 1973;30: 604-06
  6. Long JH. Location of terminal hinge axis by intraoral means. J Prosthet Dent. 1970;23:11-24 https://doi.org/10.1016/0022-3913(70)90159-9
  7. Stohaver RA. A comparison of articulator mountings made with centric relation and myocentric position records. J Prosthet Dent. 1972;28:379 https://doi.org/10.1016/0022-3913(72)90239-9
  8. Williamson EH, Steinke RM, Morse PK. et al. Centric relationship: a comparison of muscle- determined position and operator guidance. Am J Orthod Dentofacial Orthop. 1980;77: 133-45 https://doi.org/10.1016/0002-9416(80)90002-0
  9. Cooper Be. Neuromuscular occlusion: concept and application. N.Y.St. dent. 1990;56:24-29
  10. Shi CS, An Y. Influence of clenching at varied jaw positions on proportionality of myoelectri-cal activity of anterior temporalis to masseter muscle. J Prosthet Dent. in review, 1991
  11. Paiss O, Inbar GF. Autoregressive modeling of surface EMG and its spectrum with application to fatigue. IEEE Transcations on Biomedical Engineering. 1987;(34):761
  12. McCarroll RS, Naeije M, Kim YK. et al. The immediate effect of splint-induced changes in jaw positioning on the asymmetry of submaxial masticatory muscle activity. J Oral Rehabil. 1989;16: 163-70 https://doi.org/10.1111/j.1365-2842.1989.tb01329.x
  13. Carlsson GE, Ingervall B, Kocak G. Effect of increasing vertical dimension on the masticatory system in subjects with natural teeth. J Prosthet Dent. 1979;41:284-89 https://doi.org/10.1016/0022-3913(79)90008-8
  14. Mohamed A, Arthur W, Russell H. Evaluation of the needle point tracing as a method for determining centric relation. J Prosthet Dent.1965; 15:1043-54 https://doi.org/10.1016/0022-3913(65)90181-2
  15. Kleinrok M. Recording centric and eccentric occlusal disturbances with a new recording device. J Dent Res. 1992;68:597-606
  16. Hickman DM, Cramer R, Stauber WT. The effect of four jaw relations on electromyographic activity in human masticatory muscles. Archs oral Biol. 1993;38: 261-64 https://doi.org/10.1016/0003-9969(93)90037-M
  17. Mao Y, Shi CS, Guo TW. Discrimination of clenches at varied jaw positions using autoregressive model coefficients of myoelectrical activities of anterior temporal and masseter muscles. J. Oral Rehabil. 1992;19:449-55 https://doi.org/10.1111/j.1365-2842.1992.tb01109.x
  18. Y, Kotani H, Hamada T. Relation between integrated contraction in human masticatory muscles. J Dent Res. 1979;58:1440-49 https://doi.org/10.1177/00220345790580050201
  19. Sheikholeslam A, Moller E, Lous I. Pain tenderness and strength of human elevators. Scand J Dent Res. 1980;88:60-66
  20. Visser A, McCarroll RS, Naeije M. Masticatory muscle activity in different jaw relations during sub-maxial clenching. Dent Res February. 1992;71:372-79 https://doi.org/10.1177/00220345920710020501
  21. Christensen LV. Effect of an occlusal splint on integrated electromyography of masseter muscle in experimental tooth clenching in man. J Oral Rehabil. 1980;7:281-88 https://doi.org/10.1111/j.1365-2842.1980.tb00446.x
  22. Wood WW, Tobias DL. EMG responce to alteration of tooth contacts oocclusal splints during maximal clenching. J Prosthet Dent. 1984;51:394-96 https://doi.org/10.1016/0022-3913(84)90229-4
  23. Holmgren K, Sheikholeslam A, Riise C. An electromyography study of the immediate effect of an occlusal splint on the postural activity of the anterior temporal and masseter muscles in different body positions with and without visual input. J Oral Rehabil. 1985;12:483-90 https://doi.org/10.1111/j.1365-2842.1985.tb01295.x
  24. Naeije M, McCarroll RS, Weijs WA. Electromyographic activity of the human masticatory muscles during submaxial clenching in the intercuspal position. J Oral Rehabil, 1989;16:63-70 https://doi.org/10.1111/j.1365-2842.1989.tb01318.x
  25. Shi CS, An Y. Observation of proportionality of my-oelectrical activity of anterior temporalis to masseter muscle during clenching at varied jaw positions. J Oral Rehabil, 1992;19:539-43 https://doi.org/10.1111/j.1365-2842.1992.tb01118.x
  26. DuBrul EL. Sicher' s oral anatomy, 7th edi. The Mosby Co, 1980
  27. Belser UC, Hannam AG. The contribution of the deep fibers of the masseter muscle to selected tooth-clenching and chewing tasks. J Prosthet Dent. 1986;56:629-35 https://doi.org/10.1016/0022-3913(86)90432-4
  28. Pruim GJ. Asymmetries of bilateral static bite forces in different locations on the human mandible. J Dent Res. 1979;58:1685
  29. Watanabe Y. Use of personal computers for gothic arch tracing: analysis and evaluation of horizontal mandibular positions with edentulous prostfesis. J Prosthet Dent. 1999;82:562-72 https://doi.org/10.1016/S0022-3913(99)70055-7
  30. Joseph E, Grasso BS, Sharry J. The duplicability of arrow-point tracings in dentulous subjects.' J Prosthet Dent 1968;20:106-06 https://doi.org/10.1016/0022-3913(68)90133-9