Seio maxilar

Marco Degidi Giuseppe Daprile Diego Nardi Adriano Piattelli

Buccal bone plate in immediately placed and restored implant with Bio-Oss® collagen graft: a 1-year follow-up study

Authors’ affiliations: Marco Degidi, Giuseppe Daprile, Diego Nardi, Private Practice, Bologna, Italy Adriano Piattelli, Department of Oral Pathology, Dental School, University of Chieti, Chieti, Italy Corresponding author: Prof Adriano Piattelli, Via F. Sciucchi 63 66100 Chieti, Italy Tel.: [phone] Fax: [phone] e-mail: [e-mail]

Key words: biomaterial, extraction socket, immediate loading, immediate placement, ridge

dimension
Abstract Objectives: The aim of this study was to radiographically assess the vertical and horizontal alterations of buccal alveolar bone after the insertion of a post-extractive implant using Bio-Oss® Collagen graft. Material and methods: The study was designed as a prospective study. Adult patients were eligible for the study if they needed one or more immediately inserted and immediately restored implant replacing teeth to be extracted within region 15–25. After the insertion, the buccal gap was carefully grafted using Bio-Oss® Collagen and the implant immediately restored. Cone-Beam Computed Tomography (CBCT) was performed immediately after surgery and a series of measurements were made to determine the dimension of the buccal bone plate and the void between implant and extraction socket. A second CBCT was taken and the measurements repeated after 12 months. Results: Altogether, 69 patients were included in the study; a total of 69 implants were inserted. The study demonstrated that the extraction of a tooth and the immediate insertion of an implant together with an xenograft resulted in alterations of the vertical and horizontal dimension of the buccal bone plate (respectively, 25.6% and 29.3%). Nevertheless, the vertical and horizontal gap reduction was nearly complete (respectively, 99.3% and 99.1%) and the implant was