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A Journal on Dentistry and Maxillofacial Surgery
Minerva Stomatologica 2013 Aug 01
language: English, Italian
Reduction of precocious peri-implant resorption cone
De Santis D. 1, Zanotti G. 2, Morandini S. 2, Bordanzi A. 2, Gerosa R. 3, Rodella L. F. 4, Rossetto A. 5, Chiarini L. 6, Nocini P. F. 1, Bertossi D. 1 ✉
1 Oral and Maxillofacial Surgery, Dental School University of Verona, Verona, Italy;
2 Private Practitioner, Verona, Italy;
3 Azienda Ospedaliera Universitaria Integrata, Policlinico G. B. Rossi, Verona, Italy;
4 Departmen t of Anatomy and Pathophysiology, University of Brescia, Brescia, Italy;
5 School of Dentistry, University of Verona Verona, Italy;
6 Department of Surgery Main Section of Oral and Maxillofacial Surgery University of Modena and Reggio Emilia Modena, Italy
Aim: After implant-insertion, bone tissue, newly-formed on peri-implant crest, undergoes to a mild marginal osseous readjustment due to build-up of inflammatory cell tissue (ICT). The present study verifies the possibility to limit bone resorption by placing implant fixtures 0.5 mm outside cortical bone edge.
Methods: A clinically-controlled randomized study on 100 implants has been performed to compare early resorption process of implant fixtures placed 0.5 mm outside cortical bone edge with implant-fixtures inserted according to juxtacortical bone conventional protocols.
Results: After 6 months, bone implant level was higher with emersion approach (-1.01±0.54 mm, mean±SD) than with submerged treatment (-1.56±0.5 mm) (P<0.001).
Conclusion: Factors to achieve an excellent result at mean-long term seem to be very good, even though the latter have to be confirmed by follow-up.