Restorative Dentistry and Endodontics

  • 제34권1호
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  • Pages.69-79
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  • 2009
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  • 2234-7658(pISSN)
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  • 2234-7666(eISSN)
대한치과보존학회 (The Korean Academy of Conservative Dentistry)
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상이한 방법으로 수복한 근관치료된 상악 제2소구치의 응력분포: 3차원 유한요소법적 분석

STRESS DISTRIBUTION OF ENDODONTICALLY TREATED MAXILLARY SECOND PREMOLARS RESTORED WITH DIFFERENT METHODS: THREE-DIMENSIONAL FINITE ELEMENT ANALYSIS

  • 임동열 (부산대학교 치의학전문대학원 보존학교실) ;
  • 김현철 (부산대학교 치의학전문대학원 보존학교실) ;
  • 허복 (부산대학교 치의학전문대학원 보존학교실) ;
  • 김광훈 (부산대학교 공과대학 기계설계공학과) ;
  • 손권 (부산대학교 공과대학 기계설계공학과) ;
  • 박정길 (부산대학교 치의학전문대학원 보존학교실)
  • Lim, Dong-Yeol (Department of Conservative dentistry, School of Dentistry, Pusan National University) ;
  • Kim, Hyeon-Cheol (Department of Conservative dentistry, School of Dentistry, Pusan National University) ;
  • Hur, Bock (Department of Conservative dentistry, School of Dentistry, Pusan National University) ;
  • Kim, Kwang-Hoon (Department of Mechanical design engineering, College of Engineering, Pusan National University) ;
  • Son, Kwon (Department of Mechanical design engineering, College of Engineering, Pusan National University) ;
  • Park, Jeong-Kil (Department of Conservative dentistry, School of Dentistry, Pusan National University)
  • 발행 : 2009.01.30
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초록

본 연구의 목적은 근관치료 된 치아를 구조와 물성이 다른 post와 core 그리고 전장관으로 수복한 후 과도한 교합하중을 가했을 때 치아에 나타나는 응력분포를 조사하기 위함이다. 발치 된 상악 제2소구치를 micro-CT로 단층촬영하고 3D Doctor로 윤곽선을 추출한 다음 HyperMesh Ver. 6으로 삼차원 치아모형을 만들고 다음과 같은 세 가지 방법으로 수복한 유한요소모형을 제작하였다. 1) 스테인레스 스틸 포스트와 복합레진 코어 그리고 도재소부전장금관으로 수복한 모형. 2) fiber 포스트와 복합레진 코어 그리고 전부도재관으로 수복한 모형 3) 포스트, 코어와 전장관이 일체형인 간접복합레진 EndoCrown으로 수복한 모형 형성된 모형의 협측 또는 설측교두에 500N의 하중을 가하였으며 하중의 방향은 치아 장축에 대해 45도 이었다. 치관부와 치근부의 von Mises 응력을 ANSYS 9.0프로그램으로 분석한 결과 포스트와 코어의 형태보다는 전장관 재료의 탄성 계수가 근관치료된 상악 소구치의 응력분포를 좌우하였다. 치관부에서는 재료의 탄성계수가 높은 전 장관으로 수복한 모형이 낮은 응력분포를 보였다. 치근부에서는 재료의 탄성계수가 낮은 전 장관으로 수복한 모형 이 낮은 응력분포를 보였다.

The purpose of this study was to evaluate the influence of elastic modulus of restorative materials and the number of interfaces of post and core systems on the stress distribution of three differently restored endodontically treated maxillary second premolars using 3D FE analysis. Model 1, 2 was restored with a stainless steel or glass fiber post and direct composite resin. A PFG or a sintered alumina crown was considered. Model 3 was restored by EndoCrown. An oblique 500 N was applied on the buccal (Load A) and palatal (Load B) cusp. The von Mises stresses in the coronal and root structure of each model were analyzed using ANSYS. The elastic modulus of the definitive restorations rather than the type of post and core system was the primary factor that influenced the stress distribution of endodontically treated maxillary premolars. The stress concentration at the coronal structure could be lowered through the use of definitive restoration of high elastic modulus. The stress concentration at the root structure could be lowered through the use of definitive restoration of low elastic modulus.

키워드

참고문헌

  1. Nagasiri R, Chitmongkolsuk S. Long-term survival of endodontically treated molars without crown coverage: a retrospective cohort study. J Prosthet Dent 93:164-170, 2005 https://doi.org/10.1016/j.prosdent.2004.11.001
  2. Teixeira EC, Teixeira FB, Piasick JR, Thompson JY. An in vitro assessment of prefabricated fiber post system. J Am Dent Assoc 137:1006-1012, 2006 https://doi.org/10.14219/jada.archive.2006.0323
  3. Maccari PC, Conceicao EN, Nunes MF. Fracture resistance of endodontically treated teeth restored with three different prefabricated esthetic posts. J Esthet Restor Dent 15:25-30, 2003
  4. Zalkind M, Hochman N. Esthetic considerations in restoring endodontically treated teeth with posts and cores. J Prosthet Dent 79:702-705, 1998 https://doi.org/10.1016/S0022-3913(98)70079-4
  5. Cheung W. A review of the management of endodontically treated teeth. Post, core and the final restoration J Am Dent Assoc 136:611-619, 2005 https://doi.org/10.14219/jada.archive.2005.0232
  6. Lassila LV, Tanner J, Le Bell AM, Narva K, Vallittu PK. Flexural properties of fiber reinforced root canal posts. Dent Mater 20:29-36, 2004 https://doi.org/10.1016/S0109-5641(03)00065-4
  7. Genovese K, Lamberti L, Pappalettere C. Finite element analysis of a new customized composite post system for endodontically treated teeth. J Biomech 38:2375-2389, 2005 https://doi.org/10.1016/j.jbiomech.2004.10.009
  8. Fernandes AS, Shetty S, Coutinho I. Factors determining post selection: a literature review. J Prosthet Dent 90:556-562, 2003 https://doi.org/10.1016/j.prosdent.2003.09.006
  9. Baldissara P, Di Grazia V, Palano A, Ciocca L. Fatigue resistance of restored endodontically treated teeth: a multiparametric analysis. Int J Prosthodont 19:25-27, 2006
  10. Zarone F, Sorrentino R, Apicella D, Valentino B, Ferrari M, Aversa R, Apicella A. Evaluation of the biomechanical behavior of maxillary central incisors restored by means of endocrowns compared to a natural tooth: a 3D static linear finite elements analysis. Dent Mater 22:1035-1044, 2006 https://doi.org/10.1016/j.dental.2005.11.034
  11. Ortega VL, Pegoraro LF, Conti PC, do Valle AL, Bonfante G. Evaluation of fracture resistance of endodontically treated maxillary premolars, restored with ceromer or heat-pressed ceramic inlays and fixed with dual-resin cements. J Oral Rehabil 31:393-397, 2004 https://doi.org/10.1046/j.1365-2842.2003.01239.x
  12. Otto T. Computer-aided direct all-ceramic crowns: preliminary 1-year results of a prospective clinical study. Int J Periodontics Restorative Dent 24:446-455, 2004 https://doi.org/10.11607/prd.00.0601
  13. Cohen BI, Condos S, Musikant BL, Deutsch AS. Pilot study comparing the photoelastic stress distribution for four endodontic post systems. J Oral Rehabil 23:679-685, 1996 https://doi.org/10.1046/j.1365-2842.1996.d01-180.x
  14. Ross RS, Nicholls JI, Harrington GW. A comparison of strains generated during placement of five endodontic posts. J Endod 17:450-456, 1991 https://doi.org/10.1016/S0099-2399(07)80136-1
  15. Lee HM, Hur B, Kim HC, Woo SG, Kim KH, Son K, Park JK. Effects of occlusal load on the cervical stress distribution : A three-dimensional finite element study. J Kor Acad Cons Dent 31:427-436, 2006 https://doi.org/10.5395/JKACD.2006.31.6.427
  16. Toparli M. Stress analysis in a post-restored tooth utilizing the finite element method. J Oral Rehabil 30:470-476, 2003 https://doi.org/10.1046/j.1365-2842.2003.01090.x
  17. Park JK Hur B Kim SK. The influence of combining composite resins with different elastic modulus on the stress distribution of class V restoration: A threedimensional finite element study. J Kor Acad Cons Dent 33:184-197, 2008 https://doi.org/10.5395/JKACD.2008.33.3.184
  18. Lanza A, Aversa R, Rengo S, Apicella D, Apicella A. 3D FEA of cemented steel, glass and carbon posts in a maxillary incisor. Dent Mater 21:709-715, 2005 https://doi.org/10.1016/j.dental.2004.09.010
  19. Rosenstiel, Land, Fujimoto Textbook of contemporary fixed prostodontics 3rd edition Mosby, p 216-229, 2001
  20. Cheong YK, Hur B, Lee HJ. A comparison of post and core techniques with finite element analysis. J Kor Acad Cons Dent 21:70-86, 1996
  21. Cormier CJ, Burns DR, Moon P. In vitro comparison of the fracture resistance and failure mode of fiber, ceramic, and conventional post systems at various stages of restoration. J Esthet Restor Dent 15:313-318, 2003 https://doi.org/10.1111/j.1708-8240.2003.tb00302.x
  22. Butz F, Lennon AM, Heydecke G, Strub JR. Survival rate and fracture strength of endodontically treated maxillary incisors with different post and core system. Int J Prosthodont 14:58-64, 2001
  23. Mannocci F, Ferrari M, Watson TF. Intermittent loading of teeth restored using quartz fiber, and zirconium dioxide ceramic root canal posts. J Adhes Dent 1:153-158, 1999
  24. Rosentritt M, Furer C, Behr M, Lang R, Handel G. Comparison of in vitro fracture strength of metallic and tooth-coloured post and cores. J Oral Rehabil 27:595-601, 2000 https://doi.org/10.1046/j.1365-2842.2000.00548.x
  25. Akayan B, Gulmez T. Resistance to fracture of endodontically treated teeth restored with different post systems. J Prosthet Dent 87:431-437, 2002 https://doi.org/10.1067/mpr.2002.123227
  26. Assif D, Oren E, Marshak BL, Aviv I. Photoelastic analysis of stress transfer by endodontically treated teeth to the supporting structure using different restorative techniques. J Prosthet Dent 61:535-543, 1989 https://doi.org/10.1016/0022-3913(89)90272-2
  27. Akkayan B. An in vitro study evaluating the effect of ferrule length on fracture resistance of endodontically treated teeth restored with fiber-reinforced and zirconia dowel systems. J Prosthet Dent 92:155-162, 2004 https://doi.org/10.1016/j.prosdent.2004.04.027
  28. Dietschi D, Romelli M, Goretti A. Adaptation of adhesive posts and cores to dentin after fatigue testing. Int J Prosthodont 10:498-507, 1997
  29. Hunter AJ, Flood AM. The restoration of endodontically treated teeth. Part 3. Cores. Aust Dent J 34:115-121, 1989 https://doi.org/10.1111/j.1834-7819.1989.tb04619.x
  30. Pegoretti A, Fambri L, Zappini G, Bianchetti M. Finite element analysis of a glass fibre reinforced composite endodontic post. Biomaterials 23:2667-2682, 2002 https://doi.org/10.1016/S0142-9612(01)00407-0
  31. Stricker EJ, Gohring TN. Influence of different posts and cores on marginal adaptation, fracture resistance, and fracture mode of composite resin crowns on human mandibular premolars. An in vitro study. J Dent 34:326-335, 2006 https://doi.org/10.1016/j.jdent.2005.07.007
  32. Oyar P, Ulusoy M, Eskitascioglu G. The element analysis of stress distribution of 2 different tooth preparation designs in porcelain-fused-to-metal crowns. Int J Prosthodont 19:85-91, 2006
  33. Williams KR, Edmundson JT. A finite element stress analysis of an endodontically restored tooth. Eng Med 13:167-173, 1984 https://doi.org/10.1243/EMED_JOUR_1984_013_043_02
  34. Cailleteau JG, Rieger MR, Rieger MR, Akin JE. A comparison of intracanal stresses in a post-restored tooth utilizing the finite element method. J Endod 18:540-544, 1992 https://doi.org/10.1016/S0099-2399(06)81210-0
  35. Albuquerque Rde C, Polleto LT, Fontana RH, Cimini CA. Stress analysis of an upper central incisor restored with different posts. J Oral Rehabil 30:936-943, 2003 https://doi.org/10.1046/j.1365-2842.2003.01154.x
  36. Hayashi M, Takahashi M, Takahashi M, Imazato S, Ebisu S. Fracture resistance of pulpless teeth restored with post-cores and crowns. Dent Mater 22:477-485, 2006 https://doi.org/10.1016/j.dental.2005.03.017
  37. Gu XH, Kern M. Fracture resistance of crowned incisors with different post systems and luting agents. J Oral Rehabil 33:918-923, 2006 https://doi.org/10.1111/j.1365-2842.2006.01672.x
  38. Newman MP, Yaman P, Dennison J, Rafter M, Billy E. Fracture resistance of endodontically treated teeth restored with composite posts. J Prosthet Dent 89:360-367, 2003 https://doi.org/10.1067/mpr.2003.75

피인용 문헌

  1. Influence of post types and sizes on fracture resistance in the immature tooth model vol.35, pp.4, 2010, https://doi.org/10.5395/JKACD.2010.35.4.257
  2. Influence of Cavity Design on Stress Distribution in Second Premolar Tooth Using Finite Element Analysis vol.132, pp.3-II, 2017, https://doi.org/10.12693/APhysPolA.132.949