Journal of the Korean Association of Oral and Maxillofacial Surgeons

The Korean Association of Oral and Maxillofacial Surgeons (대한구강악안면외과학회)
권호 표지

A PHOTOELASTIC STUDY ON EFFECTS OF BONE REDUCTION FORCEPS ON MANDIBULAR FRACTURE REDUCTION

골절정복겸자가 하악골 골절정복에 미치는 효과에 관한 광탄성 연구

  • Park, Jin-Hyoung (Department of Oral and Maxillofacial Surgery, college of Dentistry, Yonsei University) ;
  • Choi, Byung-Ho (Department of Oral and Maxillofacial Surgery, college of Dentistry, Yonsei University) ;
  • Yoo, Tae-Min (Department of Oral and Maxillofacial Surgery, college of Dentistry, Yonsei University) ;
  • Huh, Jin-Young (Department of Dentistry, Asan Hospital, Ulsan University)
  • 박진형 (연세대학교 치과대학 구강악안면외과학교실 (원주기독병원)) ;
  • 최병호 (연세대학교 치과대학 구강악안면외과학교실 (원주기독병원)) ;
  • 류태민 (연세대학교 치과대학 구강악안면외과학교실 (원주기독병원)) ;
  • 허진영 (아산재단강릉병원 치과)
  • Published : 2002.12.31
Download PDF
⟨ Previous Next ⟩

Abstract

The purpose of this study was to evaluate the stress patterns within fractured mandibles generated by reduction forceps and to determine the optimal position of the reduction forcep. Twenty-seven mandibular models were fabricated using a photoelastic resin. Each of the three sets of mandible models prepared was osteotomized according to one of three different fracture types(symphysis, parasymphysis and body fractures). After reducing the cut segments, a reduction forcep was placed into different engagement holes to compress the segments. Photoelastic stress analysis was used to visualize the stress patterns within the fractured mandiblular models generated by the reduction forcep. In the case of symphysis or parasymphysis fractures, an optimum distribution of stress over the fracture site was achieved when placing the reduction forcep more than 12.5mm on either side of the fracture line between the midway level bisecting the mandible and 5mm below the level. In the case of body fractures, optimum stress distribution was achieved when the reduction forcep was placed more than 15mm from the fracture line on the midway level. In conclusion, a correct use of reduction forceps helps to provide a precise threedimensional reduction for mandibular fractures.

Keywords

References

  1. Spiessl B, Rahn BA: Internal fixation of the mandible, Berlin: Springer. 1989
  2. 최병호, 유재하, 윤중호: Compression osteosynthesis로 하악골골절을 치료한 경우 골절선상의 치아가 감염에 미치는 영향. 대한치과의사협회지 1994;32:69-74
  3. Perren SM, Russenberger M, Steinemann S, Mu¨ller ME, Allgo¨wer M : A dynamic compression plate. Acta Orthp Scand[Suppl] 1969;125:29
  4. Champy M, Lodde JP, Schmitt R, Jaegar JH, Muster D : Mandibular osteosynthesis by miniature screwed plates via a buccal approach. J Maxillofac Surg 1978;6:14-21 https://doi.org/10.1016/S0301-0503(78)80062-9
  5. Choi BH, Yoo JH, Kim KN, Kang HS : Stability testing of a two mi- niplate fixation technique for mandibular angle fractures An in vitro study. J Cranio Maxillofac Surg 1995;23:122-5 https://doi.org/10.1016/S1010-5182(05)80460-3
  6. Swaizumi M, Maruyama Y, Onishi K : Use of temporary miniplate for fixation in cases of mandibular fracture. J Craniofac Surg 1995; 6(5):417-20 https://doi.org/10.1097/00001665-199509000-00021
  7. Edwards TJC, David DJ, Simpson DA, Abbott AH : The relationship between fracture severity and complication rate in miniplate osteosynthesis of mandibular fractures. Br J Plast Surg 1994;47:310-11 https://doi.org/10.1016/0007-1226(94)90088-4
  8. Rudman RA, Rosenthal SC, Shen C, Ruskin JD, Ifju PG : Photoelastic analysis of miniplates osteosynthesis for mandibular angle fractures. Oral Surg Oral Med Oral Pathol Oral Radiol Endod 1997;84(2): 129-36 https://doi.org/10.1016/S1079-2104(97)90057-3
  9. Choi BH, Suh CH, Park JH, Yoo JH, Kim HJ : An effective technique for open reduction of mandibular angle fractures using new reduction forceps: technical innovations. Int J Oral Maxillofac Surg 2001;30:555-7 https://doi.org/10.1054/ijom.2001.0158
  10. Dally JW, Riley WF: Experimental stress analysis. 3rd ed. Seoul: Mc- Graw-Hill. 1991
  11. Hetenyi M : The application of the hardening resins in three-dimen- sional photoelastic studies. J Appl Phys 1939;10:295-300 https://doi.org/10.1063/1.1707308
  12. Umezaki E, Kodama K, Shimamoto A : Evaluating the stress intensity factor using white light photoelastic experiment. Met Mater Int 2001;7(1):49-53 https://doi.org/10.1007/BF03026938
  13. Nakagawa Y, Yawata M, Kakio S : Enhancement of photoelastic constant of optical thin film waveguide assisted by surface acoustic wave. Untrasonics 2000;38:590-3 https://doi.org/10.1016/S0041-624X(99)00186-9
  14. Xie H, Wang JA, Xie WH : Photoelastic study of the contact mechanics of fractal joints. Int J Rock Mech Min Sci 1997;34(5):865-74 https://doi.org/10.1016/S1365-1609(96)00038-1
  15. Yamamoto K, Hirokawa S, Kawada T : Strain distribution in the Ligament using photoelasticity: a direct application to the human ACL. Med Eng Phys 1998;20:161-8 https://doi.org/10.1016/S1350-4533(98)00025-3
  16. Michael RD, Abraham S, Jeff SBS : Photoelastic analysis of stresses produced by different acetabular cups. Clin Ortho 1999;369:165-174 https://doi.org/10.1097/00003086-199912000-00017
  17. 안종철, 김세동, 안면환, 서재성, 류재만, 김상돈 : 정상인 기립위의족저부 하중분포에 대한 광탄성 해석. 대한정형외과학회지 1994;29(4):1277-86
  18. Asundi A, Kishen A : Strain gauge and photoelastic analysis of in vivo strain and in vitro stress distribution in human dental supporting structures. Arch Oral Biol 2000;45:543-50 https://doi.org/10.1016/S0003-9969(00)00031-5