Author/Authors :
Danza, Matteo University of Chieti - School of Dentistry, Italy , Palmieri, Annalisa University of Ferrara - Department of Maxillofacial Surgery, Italy , Farinella, Francesca University of Ferrara - Department of Maxillofacial Surgery, Italy , Brunelli, Giorgio University of Ferrara - Department of Maxillofacial Surgery, Italy , Carinci, Francesco University of Ferrara - Department of Maxillofacial Surgery, Italy , Girardi, Ambra University of Bologna, Bologna, - Department of Histology,Embryology and Applied Biology, Italy , Spinelli, Giuseppe Careggi Hospital - Department of Maxillofacial Surgery, Italy
Abstract :
Background: The aim of research was to study spiral family implant by finite element analysis (FEA) inserted in different bone qualities connected with abutments of different angulations. Methods: The biomechanical behaviour of 4.2 × 13 mm dental implants, connecting screw, straight and 15° and 25° angulated abutments subjected to static loads, in contact with high and poor bone qualities was evaluated by FEA.Results: The lowest stress value was found in the system composed by implants and straight butments loaded with a vertical force, while the highest stress value was found in implants with 15° angulated abutment loaded with an angulated force. In addition, we found the lower the bone quality, the higher the distribution of the stress within the bone. Conclusion: Spiral family implants can be used successfully in low bone quality but applying a straight force is recommended.
Keywords :
Biomechanics , Dental stress analysis , Finite element analysis , Spiral implant
