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A Journal on Dentistry and Maxillofacial Surgery
Minerva Stomatologica 2010 June;59(6):305-13
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.