ORIGINAL ARTICLES   

Minerva Stomatologica 2010 June;59(6):305-13

Copyright © 2010 EDIZIONI MINERVA MEDICA

language: English, Italian

Biomechanical evaluation of dental implants in D1 and D4 bone by finite element analysis

Danza M. ¹, Quaranta A. ², Carinci F. ³, Paracchini L. ⁴, Pompa G. ², Vozza I. ² ✉

¹ Private Practioner, Pescara, Italy; ² Dental School, La Sapienza” University, Rome, Italy; ³ Dental School, University of Ferrara, Ferrara, Italy; ⁴ Private Practice, Milan, Italy; ⁵ Dental School, University of Chieti-Pescara,Chieti, Italy

AIM: The aim of the present study was to analyze stress and strain distribution in dental implants with different abutment’s inclination inserted in D1 and D4 bone.
METHODS:The biomechanical behavior of 5 mm x 16 mm dental implants with straight, 15° and 25° angulated abutments subjected to static loads, in contact with D1 and D4 bone, was evaluated by Finite Element Analysis (FEA).
RESULTS: The lowest stress and strain values were found in the system composed by implants with straight abutments loaded with a 200-N vertical strength, while the highest stress and strain values were found in implants with 15° angulated abutment loaded with a tilted strength (FY=200 N and FZ=140 N). Stress value increased from D1 to D4 bone, while strain value decreased due to the effect of normal elasticity mode of biological tissues.
CONCLUSION: The different stress and strain distribution in D1 and D4 bone tissue surrounding dental implants with a tapered neck could favor prosthetic load and play a role in implant long-term success.