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Online ISSN 1827-174X
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.
language: English, Italian