The Journal of Advanced Prosthodontics

The Korean Academy of Prosthodonitics (대한치과보철학회)
권호 표지
DOI QR코드

DOI QR Code

The influence of horizontal cephalic rotation on the deviation of mandibular position

  • Katayama, Naoto (Functional Occlusal Treatment, The Nippon Dental University Graduate School of Life Dentistry at Niigata) ;
  • Koide, Kaoru (Functional Occlusal Treatment, The Nippon Dental University Graduate School of Life Dentistry at Niigata) ;
  • Koide, Katsuyoshi (Comprehensive Dental Care, The Nippon Dental University Niigata Hospital) ;
  • Mizuhashi, Fumi (Removable Prosthodontics, The Nippon Dental University School of Life Dentistry at Niigata)
  • Received : 2017.11.13
  • Accepted : 2018.11.18
  • Published : 2018.12.31
Download PDF
⟨ Previous Next ⟩

Abstract

PURPOSE. When performing an occlusal procedure, it is recommended that the patient should be sitting straight with the head in a natural position. An inappropriate mandibular position caused by an incorrect occlusal record registration or occlusal adjustment can result in damaged teeth and cause functional disorders in muscles and temporomandibular joints. The purpose of this study was to clarify the influence of horizontal cephalic rotation on mandibular position by investigating the three-dimensional positions of condylar and incisal points. MATERIALS AND METHODS. A three-dimensional jaw movement measurement device with six degrees of freedom (the WinJaw System) was used to measure condylar and incisal points. The subjects were asked to sit straight with the head in a natural position. The subjects were then instructed to rotate their head horizontally $0^{\circ}$, $10^{\circ}$, $20^{\circ}$, $30^{\circ}$, $40^{\circ}$, $50^{\circ}$and $60^{\circ}$ in the right or left direction. RESULTS. The results indicated that horizontal cephalic rotation made the condyle on the rotating side shift forward, downward, and toward the inside, and the condyle on the counter rotating side shift backward, upward, and toward the outside. Significant differences in deviations were found for angles of rotation higher than $20^{\circ}$. The incisal point shifted in the forward and counterrotating directions, and significant differences were found for angles of rotation higher than $20^{\circ}$. CONCLUSION. The mandibular position was altered by horizontal cephalic rotations of more than $20^{\circ}$. It is essential to consider the possibility of deviation of the mandibular position during occlusal procedures.

Keywords

References

  1. Sasaki K, Watanabe M, Inai T, Kanuma A. Change of mandibular position elicited by tonic neck reflex under EMG biofeedback. J Dent Res 1984;63:556.
  2. Tingey EM, Buschang PH, Throckmorton GS. Mandibular rest position: a reliable position influenced by head support and body posture. Am J Orthod Dentofacial Orthop 2001;120:614-22. https://doi.org/10.1067/mod.2001.119802
  3. van't Spijker A, Creugers NH, Bronkhorst EM, Kreulen CM. Body position and occlusal contacts in lateral excursions: a pilot study. Int J Prosthodont 2011;24:133-6.
  4. Coelho MF, Cavalcanti Bd, Claro Neves AC, Joias RP, Rode Sde M. Influence of dental chair backrest inclination on the registration of the mandibular position. J Prosthet Dent 2015;114:693-5. https://doi.org/10.1016/j.prosdent.2015.05.013
  5. Ohta A, Ishigami Y, Koide K, Hatate S, Kojima T, Tsugawa T, Takahashi J. A study on the horizontal reference plane in prosthodontics : The relationship among various reference planes. Shigaku 1996;84,68-73.
  6. Ishii M, Koide K, Ueki M, Asanuma N. Influence of body and head posture on deviation of the incisal point undergoing dental treatment. Prosthodont Res Pract 2007;6:217-24. https://doi.org/10.2186/prp.6.217
  7. Xia JJ, McGrory JK, Gateno J, Teichgraeber JF, Dawson BC, Kennedy KA, Lasky RE, English JD, Kau CH, McGrory KR. A new method to orient 3-dimensional computed tomography models to the natural head position: a clinical feasibility study. J Oral Maxillofac Surg 2011;69:584-91. https://doi.org/10.1016/j.joms.2010.10.034
  8. Nakajima Y, Koide K, Arakawa I, Koide K. Influence of lateral head tilt on mandibular position. Ann Jpn Prosthodont Soc 2014;6:300-8. https://doi.org/10.2186/ajps.6.300
  9. Hatano Y, Sakai T, Marumo Y, Tage T, Morimoto C, Suzuki M, Yokozuka S. Horizontal head posture of patients seating on the dental chair. Shigaku 1997;85:247-50.
  10. Krogh-Poulsen WG, Olsson A, Schwartz L, Chayes CM. Management of the occlusion of the teeth. Facial Pain Mandibular Dysfunction 1968;236-80.
  11. Lerman MD. The muscle engram: the reflex that limits conventional occlusal treatment. Cranio 2011;29:297-303. https://doi.org/10.1179/crn.2011.044
  12. Goldstein DF, Kraus SL, Williams WB, Glasheen-Wray M. Influence of cervical posture on mandibular movement. J Prosthet Dent 1984;52:421-6. https://doi.org/10.1016/0022-3913(84)90460-8
  13. Fuentes MA, Opperman LA, Buschang P, Bellinger LL, Carlson DS, Hinton RJ. Lateral functional shift of the mandible: Part I. Effects on condylar cartilage thickness and proliferation. Am J Orthod Dentofacial Orthop 2003;123:153-9. https://doi.org/10.1067/mod.2003.5
  14. Baqaien MA, Barra J, Muessig D. Computerized axiographic evaluation of the changes in sagittal condylar path inclination with dental and physical development. Am J Orthod Dentofacial Orthop 2009;135:88-94. https://doi.org/10.1016/j.ajodo.2007.01.030
  15. Giannakopoulos NN, Wirth A, Braun S, Eberhard L, Schindler HJ, Hellmann D. Effect of the occlusal profile on the masticatory performance of healthy dentate subjects. Int J Prosthodont 2014;27:383-9. https://doi.org/10.11607/ijp.3793
  16. Funakoshi M, Amano N. Effects of the tonic neck reflex on the jaw muscles of the rat. J Dent Res 1973;52:668-73. https://doi.org/10.1177/00220345730520040501
  17. Izutani Y. The clinical significance of the mandibular position regulated by myo-pulses. J Jpn Prosthodont Soc 1980;24:470-85. https://doi.org/10.2186/jjps.24.470
  18. Winnberg A, Pancherz H, Westesson PL. Head posture and hyo-mandibular function in man. A synchronized electromyographic and videofluorographic study of the open-closeclench cycle. Am J Orthod Dentofacial Orthop 1988;94:393-404. https://doi.org/10.1016/0889-5406(88)90128-X
  19. Kuraishi M, Yazawa M, Yamada T. The change of teeth contacts according to the head position-Reproducing teeth contacts on the Hanau 145-2 Articulator. JNADT 1997;18:112-6.
  20. Youdas JW, Garrett TR, Suman VJ, Bogard CL, Hallman HO, Carey JR. Normal range of motion of the cervical spine: an initial goniometric study. Phys Ther 1992;72:770-80. https://doi.org/10.1093/ptj/72.11.770
  21. Bexander CS, Mellor R, Hodges PW. Effect of gaze direction on neck muscle activity during cervical rotation. Exp Brain Res 2005;167:422-32. https://doi.org/10.1007/s00221-005-0048-4
  22. Karl PJ, Foley TF. The use of a deprogramming appliance to obtain centric relation records. Angle Orthod 1999;69:117-24.
  23. Beyron H. Orienteringsproblem vid protetiska rekonstruktioner och Bettstudier. Svensk tandlak. Tskr 1942;35:1-55.
  24. Kordass B, Ruckert B, Stuttgen U. Zur Lange und Lage der Interkondylarachse. Deutsche Zahnarztliche Zeitschrift. Dtsch Zahnarztl Z 1997;52:1-4.
  25. Koide K, Koide K, Mizuhashi F, Takahashi M. Influence of opening and closing movements without any tooth contact on deviation of condylar position in mouth closing. Ann Jpn Prosthodont Soc 2014;6:414-22. https://doi.org/10.2186/ajps.6.414