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Pattern Analysis of Occlusal Contacts During Lateral Excursion Using T-scan III System

T-scan III 시스템을 이용한 하악 측방운동 시 교합접촉 양상의 분석

  • Received : 2013.01.14
  • Accepted : 2013.03.25
  • Published : 2013.03.30

Abstract

The objective of this study was to analyze occlusal contact pattern of 33 young adult males with normal occlusion during lateral excursion using T-scan III system which can measure the dynamic occlusion. Occlusal contact patterns were examined and categorized in non-working side disclusion point(more functionally acceptable position) not canine-to-canine position. Disclusion time, occlusal force, and occlusal force distribution ratio of upper canine at disclusion point during lateral excursion movement was also measured and compared among the groups divided according to contact patterns. The results showed that group function was clearly more dominant than canine guidance and other occlusal contact patterns different with existing patterns were found. There were significantly difference between groups in variables of T-scan measurement. T-scan III system is effective tools to analyze and evaluate occlusal contact patterns, disclusion time, occlusal force, and occlusal force distribution ratio of upper canine at disclusion point.

Keywords

Lateral excursion;T-scan III system;Occlusal contact pattern

References

  1. Academy of prosthodontics. The glossary of prosthodontic terms. J Prosthet Dent 2005;94:10-92 https://doi.org/10.1016/j.prosdent.2005.03.013
  2. Marklund S, Wänman A. A century of controversy regarding the benefit of detriment of occlusal contacts on the mediotrusive side. J Oral Rehabil 2000;27:553-62 https://doi.org/10.1046/j.1365-2842.2000.00629.x
  3. Ogawa T, Ogimoto T, Koyano K. Pattern of occlusal contacts in lateral positions: Canine protection and group function validity in classifying guidance patterns. J Prosthet Dent 1998;80:67-74 https://doi.org/10.1016/S0022-3913(98)70093-9
  4. Al-Nimri KS, Batain도 AB, Abo-Farha S. Functional occlusal patterns and their relationship to static occlusion. Angle Orthod 2010;80:65-71 https://doi.org/10.2319/021209-98.1
  5. Tipton RT, Rinchuse DJ. The relationship between static occlusion and functional occlusion in a dental school population. Angle Orthod 1991;61:57-66
  6. Jemt T, Lundquist S, Hedegard B. Group function or canine protection. J Prosthet Dent 2004; 91:403-8 https://doi.org/10.1016/S0022-3913(03)00156-2
  7. Akören AC, Karaağaçlioğlu L. Comparison of the electromyographic activity of individuals with canine guidance and group function occlusion. J Oral Rehabil 1995;22;73-77 https://doi.org/10.1111/j.1365-2842.1995.tb00213.x
  8. Ogawa T, Ogimoto T, Koyano K. The relationship between non-working-side occlusal contacts and mandibular position. J Oral Rehabil 2001;28:976-81 https://doi.org/10.1046/j.1365-2842.2001.00746.x
  9. Ogawa T, Ogimoto T, Koyano K. Validity of the examination method of occlusal contact pattern relating to mandibular position. J Dent 2000;28:23-9 https://doi.org/10.1016/S0300-5712(99)00045-7
  10. Maness WL, Benjamin M,,Padoloff R. Computerized occlusal anaylisis; A new technology. Quintessence Int, 1987;18:287-92
  11. Koos B, Godt A. Precision of an instrumentationbased method of analyzing occlusion abd its resulting distribution of forces in the dental arch. J Orofac Orthop, 2010;71:403-10 https://doi.org/10.1007/s00056-010-1023-7
  12. Wang YL, Cheng J, Chen YM et al. Patterns and forces of occlusal contacts during lateral excurisions recorded by the T-scan Ⅱ system in young chinese adults with normal occlusions. J Oral Reabli, 2011;28:571-578
  13. Kerstein RB, Wright NR. Electromyographic and computer analysis of patients suffering from chronic myofascial pain-dysfunction syndrome:before and after treatment with immediate complete anterior guidance development. J Prosthet Dent 1991;66: 677-86 https://doi.org/10.1016/0022-3913(91)90453-4
  14. Dahlberg G. Statistical methods for medical and biological students. London: G Allen & Unwin Ltd; 1940:1-140
  15. Garcia GV, Cartagena GA. Evalution of occlusal cotacts in maximum intercuspation using T-scan system. J Oral Rehabil, 1997;24:899-903 https://doi.org/10.1046/j.1365-2842.1997.00586.x
  16. Kalachev YS, Michailov TA. Study of occlusal articulation relationship with the help of T-scan apparatus. Falio Med (Ploveliv), 2001;43:88-91
  17. Hirano S, Okuma K. In vitro study on accuracy and rapeatability of the T-scanⅡ system. Kokubyo Gakkai Zasshi, 2002;69:194-201 https://doi.org/10.5357/koubyou.69.194
  18. Yaffe A, Ehrlich J. The functional range of tooth contacts in lateral gliding movements. J Prosthet Dent 1987;57:730-3 https://doi.org/10.1016/0022-3913(87)90373-8
  19. Ingervall B, Hähner R, Kessi S. Pattern of tooth contact in eccentric mandibular positions in young adults. J Prosthet Dent 1991;66:169-76 https://doi.org/10.1016/S0022-3913(05)80043-5