A finite element analysis of tilted versus nontilted implant configurations in the edentulous maxilla.

The aim of this study was to evaluate stress patterns at the bone-implant interface of tilted versus nontilted implant configurations in edentulous maxillae using finite element models of two tilted and one nontilted configuration. Analysis predicted the maximum absolute value of principal compressive stress near the cervical area of the distal implant for all models. The tilted configurations showed a lower absolute value of compressive stress compared with the nontilted, indicating a possible biomechanical advantage in reducing stresses at the bone-implant interface.

[1]  J. Nissan,et al.  Stress distribution around maxillary implants in anatomic photoelastic models of varying geometry. Part I. , 2001, The Journal of prosthetic dentistry.

[2]  B Rangert,et al.  Tilting of posterior mandibular and maxillary implants for improved prosthesis support. , 2000, The International journal of oral & maxillofacial implants.

[3]  C. Bourauel,et al.  Bone loading pattern around implants in average and atrophic edentulous maxillae: a finite-element analysis. , 2001, Journal of cranio-maxillo-facial surgery : official publication of the European Association for Cranio-Maxillo-Facial Surgery.

[4]  R G Craig,et al.  Finite element analysis of three- and four-unit bridges. , 1989, Journal of oral rehabilitation.

[5]  Ş. Canay,et al.  Comparison of stress distribution around vertical and angled implants with finite-element analysis. , 1996, Quintessence international.