Tehran University of Medical Sciences

Science Communicator Platform

Stay connected! Follow us on X network (Twitter):
Share By
Comparing 4-Mm Dental Implants to Longer Implants Placed in Augmented Bones in the Atrophic Posterior Mandibles: One-Year Results of a Randomized Controlled Trial Publisher Pubmed



Rokn AR1 ; Monzavi A2 ; Panjnoush M3 ; Hashemi HM4 ; Kharazifard MJ5 ; Bitaraf T6
Authors

Source: Clinical Implant Dentistry and Related Research Published:2018


Abstract

Background: Short implants have been proposed as an alternative for the rehabilitation of atrophic edentulous areas. Purpose: To evaluate the efficacy of 4-mm implants vs longer implants in the atrophic posterior mandibles. Materials and Methods: Eleven patients with bilateral atrophic mandibles were rehabilitated with two to four 4-mm implants and 10 or 8-mm long implants in augmented bone using Guided Bone Regeneration procedure. One side of the mandibles was randomly allocated to vertical augmentation with mixed autogenous bone and allograft. Implants were placed in both sides of the mandible after 6 months, and loaded after another 2 months. Subsequently, implant and prosthesis failures, marginal bone levels changes, and any complication were evaluated after 1-year follow-up. Results: In this study, one patient dropped out and no failures occurred. However, 4-mm implants loss of 0.30 ± 0.34 mm peri-implant marginal bone and long implants loss of 0.47 ± 0.54 mm marginal bone were observed after 1-year of follow-up. The difference between the two groups was not statistically significant (difference = −0.16 ± 0.68 mm; P = 0.46). Eight complications occurred in five augmented sites of the patients, and no complication was found to occur in the short implants sites. Conclusions: One-year after loading, 4-mm implants had similar outcomes as long implants in augmented bone. Therefore, short implants might be a feasible treatment in atrophic mandibles. © 2018 Wiley Periodicals, Inc.
Other Related Docs
8. Pedicled Segmental Rotation Techniques for Posterior Mandible Augmentation: A Preliminary Study, International Journal of Oral and Maxillofacial Surgery (2019)
10. The Role of Lingual Frame on Stability of Mandibular Subperiosteal Implant: A Patient-Specific Finite Element Study, 2023 30th National and 8th International Iranian Conference on Biomedical Engineering# ICBME 2023 (2023)
15. Short Dental Implants: A Review of Literature, Journal of Long-Term Effects of Medical Implants (2019)