TITLE:
A New Volumetric Parameter for a Comparative Finite-Element Analysis of a Six- or Four-Implant Mandibular Total-Arch Rehabilitation
AUTHORS:
Alfredo Natali, Enrico Bertocchi, Andrea Baldini, Giuseppe Antonio Mulas, Matteo Martinolli, Bortolini Sergio
KEYWORDS:
Finite-Element Analysis, Oral Implants, All-on-Four Configuration, Six-Implant Configuration, Bone Mechanics, Comparative Analysis
JOURNAL NAME:
Open Journal of Stomatology,
Vol.6 No.1,
January
19,
2016
ABSTRACT: In a full-arch implant rehabilitation ad modum Branemark, the distribution of stress and strain in mandibular bone is influenced by the type, number and position of implants used. In particular, the biomechanical behaviour of the bone structure after complete osseointegration depends on the load transferred to the bone by each fixture. In this study, a finite-element analysis of two models was performed. Models of an all-on-four configuration and a six-implant configuration were compared in a worst-case scenario. A new V parameter is presented to aid the quantitative and comparative analysis of the all-on-four and six-implant configurations. The influence of orthotropy was also investigated, and a geometric change in the all-on-four configuration is presented.