To evaluate the effect of restorative materials on stress distribution of endodontically treated teeth, the 3D models of an endodontically treated mandibularfi rst molar, restoration, and cement layer were created. Three different materials (composite resin, ceramage and ceramic) were studied and two loading conditions (vertical and oblique load) were simulated. Mohr-Coulomb failure criterion of enamel, dentine, endocrown and cement were evaluated separately. It is indicated that under both loading conditions, the highest values of Mohr-Coulomb failure criterion were observed in Ceramage-restored group for remaining tooth structure while in ceramic-restored group for the restoration. Compared to composite resin and Ceramage, ceramic endocrown transferred less stress, namely was more protective to the tooth structure.
参考文献
| [1] | Jack L. Ferracane .Resin composite—State of the art[J].Dental materials,2011(1):29-38. |
| [2] | David C. Sarrett .Clinical challenges and the relevance of materials testing for posterior composite restorations[J].Dental materials,2005(1):9-20. |
| [3] | Conrad HJ;Seong WJ;Pesun IJ .Current ceramic materials and systems with clinical recommendations: a systematic review.[J].The Journal of Prosthetic Dentistry,2007(5):389-404. |
| [4] | Biacchi,G.R.;Mello,B.;Basting,R.T. .The endocrown: An alternative approach for restoring extensively damaged molars[J].Journal of esthetic and restorative dentistry: official publication of the American Academy of Esthetic Dentistry ... [et al.],2013(6):383-390. |
| [5] | Bindl A;Richter B;Mormann WH .Survival of ceramic computer-aided design/manufacturing crowns bonded to preparations with reduced macroretention geometry.[J].The International journal of prosthodontics,2005(3):219-224. |
| [6] | Raffaella Aversa;Davide Apicella;Letizia Perillo;Roberto Sorrentino;Fernando Zarone;Marco Ferrari;Antonio Apicella .Non-linear elastic three-dimensional finite element analysis on the effect of endocrown material rigidity on alveolar bone remodeling process[J].Dental materials,2009(5):678-690. |
| [7] | Fernando Zarone;Roberto Sorrentino;Davide Apicella;Bartolomeo Valentino;Marco Ferrari;R. Aversa;A. Apicella .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[J].Dental materials,2006(11):1035-1044. |
| [8] | Mao-hong Yu .Advances in strength theories for materials under complex stress state in the 20th Century[J].Applied Mechanics Reviews: An Assessment of the World Literature in Engineering Sciences,2002(3):169-218. |
| [9] | Benazzi S;Kullmer O;Grosse IR;Weber GW .Using occlusal wear information and finite element analysis to investigate stress distributions in human molars.[J].Journal of Anatomy,2011(3):259-272. |
| [10] | Dejak B;Mlotkowski A .Three-dimensional finite element analysis of strength and adhesion of composite resin versus ceramic inlays in molars.[J].The Journal of Prosthetic Dentistry,2008(2):131-140. |
| [11] | Silva,A.G.;Martins,C.C.;Zina,L.G.;Moreira,A.N.;Paiva,S.M.;Pordeus,I.A.;Magalh?es,C.S. .The association between occlusal factors and noncarious cervical lesions: A systematic review[J].Journal of dentistry,2013(1):9-16. |
| [12] | Pierrisnard L;Bohin F;Renault P;Barquins M .Corono-radicular reconstruction of pulpless teeth: A mechanical study using finite element analysis.[J].The Journal of Prosthetic Dentistry,2002(4):442-448. |
| [13] | Hazzouri KM;Mohajer A;Dejak SI .Contrasting patterns of transposable-element insertion polymorphism and nucleotide diversity in autotetraploid and allotetraploid Arabidopsis species.[J].Genetics,2008(1):581-592. |
| [14] | Jiang W;Bo H;Yongchun G;LongXing N .Stress distribution in molars restored with inlays or onlays with or without endodontic treatment: a three-dimensional finite element analysis.[J].The Journal of Prosthetic Dentistry,2010(1):6-12. |
| [15] | Kou,W.;Li,D.;Qiao,J.;Chen,L.;Ding,Y.;Sj?gren,G. .A 3D numerical simulation of stress distribution and fracture process in a zirconia-based FPD framework[J].Journal of biomedical materials research, Part B. Applied biomaterials,2011(2):376-385. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%