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Romanian Journal of Oral Rehabilitation Numarul 1 BIOMECHANICAL CONSEQUENCES OF DENTAL IMPLANTS INSERTED IN AUGMENTED ALVEOLAR RIDGES – A COMPARATIVE STUDY BETWEEN TISSUE-LEVEL AND BONE-LEVEL IMPLANTS: FINITE ELEMENTS ANALYSIS

BIOMECHANICAL CONSEQUENCES OF DENTAL IMPLANTS INSERTED IN AUGMENTED ALVEOLAR RIDGES – A COMPARATIVE STUDY BETWEEN TISSUE-LEVEL AND BONE-LEVEL IMPLANTS: FINITE ELEMENTS ANALYSIS

Alecsandru Ionescu, Aliona Dodi, Vasileios Panagopoulos, Mihnea Ioan Nicolescu, Augustin Traian Mihai, Gabriela Tanase, Daniel Vlasceanu

ABSTRACT

Aim of the study The purpose of this finite element analyze study was to evaluate the influence of implant macrodesign when using two different types of implants, soft tissue level – and bone level implants, in a maxillary bone site that previously underwent alveolar ridge preservation and to compare the stress/ strain values occurring in the bone and at the implant-bone interface after the application of the static and dynamic forces. Material and methods A three-dimensional (3D) finite element model was created to evaluate the magnitude and distribution of the stress in the peri-implant bone of a single implant with a crown cemented to a titanium abutment. Results The results of the study showed that the values of total movement, the distribution of equivalent tension and the tension along the implant axis were lower for the tissue level implants when compared to bone level implants. Conclusions Stress/strain distribution patterns were influenced by implant collar/neck design in the bone model. Tissue level implants showed better biomechanical behavior in posterior maxillary bone when compared with the bone level implants.

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