The korean journal of orthodontics (대한치과교정학회지)

The Korean Association Of Orthodontists (대한치과교정학회)
권호 표지
DOI QR코드

DOI QR Code

Longitudinal measurements of tooth mobility following orthodontic treatment

교정치료 후 치아동요도 감소에 대한 종단적 계측연구

  • Hwang, Hyeon-Shik (Department of Orthodontics, 2nd Stage of Brain Korea 21, School of Dentistry, Dental Science Research Institute, Chonnam National University) ;
  • Kim, Wang-Sik (Department of Orthodontics and Pediatric Dentistry, The University of Michigan) ;
  • Kim, Jeong-Moon (Korean Adult Occlusion Study Center) ;
  • Mcnamara, James A. Jr. (Department of Orthodontics and Pediatric Dentistry, School of Dentistry, Developmental Biology, School of Medicine and Research, Center for Human Growth and Development, The University of Michigan)
  • Published : 2010.02.28
Download PDF
⟨ Previous Next ⟩

Abstract

Objective: The aim of the present study was to evaluate the changes in tooth mobility following orthodontic treatment and to obtain information regarding the guideline of retainer wear duration during the post-treatment period. Methods: The sample consisted of twenty patients who had been treated with edgewise appliances. The mobility of the maxillary teeth from the central incisor to the first molar was measured bilaterally by way of the $Periotest^{(R)}$, a non-invasive, electronic device that provides an objective measurement of the reaction of the periodontium to a defined impact load. Tooth mobility was monitored at the time of the removal of the orthodontic appliances and subsequently at three-month intervals during the two years following appliance removal. Results: Tooth mobility decreased rapidly for the first six months and then decreased at a slower rate during the next six months; no statistically significant decrease in mobility was observed during the second year following appliance removal. Conclusions: The results of the present study suggest that adequate tooth stabilization is critical during the first six months following appliance removal and that continued wearing of retainers is recommended at least until twelve months after the completion of orthodontic treatment.

본 연구는 교정치료 종료 후 치아동요도의 종단적 계측을 통해 치아 주위조직의 안정화가 언제 나타나는지 살펴봄으로써 교정치료 후 유지장치 장착기간 설정에 도움이 되고자 시행되었다. 고정식 교정장치로 치료가 종료된 20명의 환자를 대상으로 교정장치 제거 직후 그리고 2년까지 3개월 간격으로 Periotest를 이용하여 상악 양측 중절치부터 제1대구치까지 치아동요도를 계측하고 교정치료 후 시간 경과에 따른 동요도 감소 양상을 비교 분석한 결과, 처음 6개월은 급한 양상으로, 다음 6개월은 보다 완만한 양상으로 감소하였고, 이후는 계속 감소하는 양상을 보였으나 통계적으로 유의한 차이를 보이지 않았다. 이상의 결과는 교정치료 후 치아 주위조직의 안정화는 1년이 지나서야 어느 정도 이루어짐을 그리고 처음 6개월은 매우 불안정함을 나타내는 것으로, 교정장치 제거 후 유지장치가 치료 후 1년간은 필요함을, 특히 처음 6개월 동안은 매우 중요함을 시사하였다.

Keywords

References

  1. Reitan K. Principles of retention and avoidance of posttreatment relapse. Am J Orthod 1969;55:776-90. https://doi.org/10.1016/0002-9416(69)90050-5
  2. Miller SC. Textbook of Periodontia. Philadelphia: Blakiston Co; 1938. p.92.
  3. Manly RS, Yurkstas A, Reswick JB. An instrument for measuring tooth mobility. J Periodontol 1951;22:148-55. https://doi.org/10.1902/jop.1951.22.3.148
  4. Muhlemann HR. Tooth mobility: the measuring method. Initial and secondary tooth mobility. J Periodontol 1954;25:22-9. https://doi.org/10.1902/jop.1954.25.1.22
  5. Muhlemann HR. Ten years of tooth-mobility measurements. J Periodontol 1960;31:110-22. https://doi.org/10.1902/jop.1960.31.2.110
  6. Burstone CJ, Pryputniewicz RJ, Bowley WW. Holographic measurement of tooth mobility in three dimensions. J Periodontal Res 1978;13:283-94. https://doi.org/10.1111/j.1600-0765.1978.tb00182.x
  7. Schulte W, Lukas D. The Periotest method. Int Dent J 1992;42:433-40.
  8. Schulte W, d'Hoedt B, Lukas D, Maunz M, Steppeler M. Periotest for measuring periodontal characteristics--correlation Tooth mobility following orthodontic treatment with periodontal bone loss. J Periodontal Res 1992;27:184-90. https://doi.org/10.1111/j.1600-0765.1992.tb01667.x
  9. Nakago T, Mitani S, Hijiya H, Hattori T, Nakagawa Y. Determination of the tooth mobility change during the orthodontic tooth movement studied by means of Periotest and MIMD (the mechanical impedance measuring device for the periodontal tissue). Am J Orthod Dentofacial Orthop 1994;105: 92-6. https://doi.org/10.1016/S0889-5406(94)70105-9
  10. Tanaka E, Ueki K, Kikuzaki M, Yamada E, Takeuchi M, Dalla-Bona D, et al. Longitudinal measurements of tooth mobility during orthodontic treatment using a periotest. Angle Orthod 2005;75:101-5.
  11. Hwang HS, Kim JH, Choi JK, Kim JC. The change of tooth mobility following orthodontic tooth movement; a short-term study. Korean J Orthod 1998;28:379-89.
  12. Cody RP, Smith JK. Applied statistics and the SAS programming language. 3rd ed. Englewood Cliffs: Prentice-Hall Inc; 1991. p.169-71.
  13. Ericsson I, Thilander B, Lindhe J. Periodontal conditions after orthodontic tooth movements in the dog. Angle Orthod 1978; 48:210-8.
  14. Kutsuzawa M. Remodeling process of periodontal fibers appearing under mechanical retention after tooth rotation. Shigaku 1985;73:1263-81.
  15. Hong RK, Yamane A, Kuwahara Y, Chiba M. The effect of orthodontic retention on the mechanical properties of the periodontal ligament in the rat maxillary first molar. J Dent Res 1992;71:1350-4. https://doi.org/10.1177/00220345920710070101
  16. Tanne K, Inoue Y, Sakuda M. Biomechanical behavior of the periodontium before and after orthodontic tooth movement. Angle Orthod 1995;65:123-8.
  17. Muhlemann HR, Herzog H, Rateitschak KH. Quantitative evaluation of the therapeutic effect of selective grinding. J Periodontal 1957;28:11-6. https://doi.org/10.1902/jop.1957.28.1.11
  18. Goldberg HJV. A new technique for measuring tooth mobility. J Dent Res 1961;40:641. https://doi.org/10.1177/00220345610400040301
  19. O'Leary TJ, Rudd KD. An instrument for measuring horizontal tooth mobility. Periodontics 1963;1:249-54.
  20. Muhlemann HR Tooth mobility: are view of clinical aspects and research findings. J Periodontol 1967;38:686-713. https://doi.org/10.1902/jop.1967.38.6_part2.686
  21. Dahlberg G. Statistical methods for medical and biological students. London: George Allen & Unwin Ltd; 1940. p.122-32.
  22. Van Scatter DE, Wilson CJ. The Periotest method for determining implant success. J Oral Implantol 1991;17:410-3.
  23. Jepsen A. Root surface measurement and a method for x-ray determination of root surface area. Acta Odontol Scand 1963; 21:35-46. https://doi.org/10.3109/00016356309019777
  24. Tylman SD, Tylman SG. Theory and practice of crown and bridge prosthodontics. St. Louis: CV Mosby; 1960. p.161-2.
  25. Watt DM, MacGregor AR, Geddes M, Cockburn A, Boyd JL. A preliminary investigation of the support of partial dentures and its relationship to vertical loads. Dent Practit 1958;9:2-15.
  26. Reitan K. Tissue rearrangement during retention of orthodontically rotated teeth. Angle Orthod 1959;29:105-13.