Immediate non-submerged implants with laser-microtextured collar placed in the inter-radicular septum of mandibular molar extraction sockets associated to GBR: Results at 3-year.

R. Guarnieri,L. Testarelli,G. Miccoli,G. Di Giorgio,D. Di Nardo

doi:10.4317/jced.56277

Abstract

BackgroundThe aim of the present study was to radiographically evaluate the vertical socket walls changes, and the peri-implant marginal bone remodelling, and clinicallly the soft tissues conditions around the non-submerged single implants placed into the inter radicular septum of mandibular molar sockets, associated with a collagen membrane, after 3 years of loading. Material and MethodsThirty patients underwent to placement of a non-submerged implants with a laser-microtextured collar into the inter radicular septum of mandibular molar fresh extraction sockets. A collagen membrane and the mucoperiosteal flap were adapted around the neck of the implants, leaving the laser-microtextured collar to heal in a transmucosal fashion. ResultsAt the end of the follow-up period, no statistical differences were found for each radiographic measurements used for the examination of extraction sockets vertical bone changes. Compared to implants placement, at the end of the 3-year follow-up, the vertical radiographic mesial and distal peri-implant marginal bone levels showed a statistically significant gain of 0.9 (SD 0.5), and 1.0 mm (SD 0.6), respectively (P=0.037). Conclusions In mandibular fresh extraction sockets, the method of GBR around transmucosal implants with laser-microtextured surface placed into the interadicular septum may be used successfully to counteract the ridge remodelling. Key words:Non-submerged implants, GBR, laser-microtextured collar.

Highlights

Several literature data indicated that, with careful patient selection, the immediate implants placement protocol in molar extraction sockets has long-term success rate comparable to that of implants placement into healed molar extraction sites [1,2,3,4]
Though guided bone regeneration (GBR) was thought to be possible only associated to submerged immediate implants, several reports highlighted that a GBR technique can be used with success associated with immediate non-submerged implants [12,13,14,15], with the concomitant aim to counteract the ridge remodeling [16,17]
Laser-produced microgrooves are a series of cell-sized circumferential isotropic channels onto the titanium surface at a coronal height of the implant collar, which act as a predetermined site, attracting the formation of a physical connective tissue, with fibers perpendicularly oriented to the implant collar surface

Summary

Introduction

Several literature data indicated that, with careful patient selection, the immediate implants placement protocol in molar extraction sockets has long-term success rate comparable to that of implants placement into healed molar extraction sites [1,2,3,4]. The present study was designed to evaluate whether a method of GBR associated to immediate transmucosal implants could be beneficial combining a resorbable membranes to a laser-microgrooved implant collar surface For this purpose, the peri-implant marginal bone changes and soft tissues conditions around the non-submerged single implants placed into the inter radicular septum associated with a collagen membrane, after 3 years of loading, were investigated. The aim of the present study was to radiographically evaluate the vertical socket walls changes, and the peri-implant marginal bone remodelling, and clinicallly the soft tissues conditions around the non-submerged single implants placed into the inter radicular septum of mandibular molar sockets, associated with a collagen membrane, after 3 years of loading. Material and Methods: Thirty patients underwent to placement of a non-submerged implants with a laser-microtextured collar into the inter radicular septum of mandibular molar fresh extraction sockets. Conclusions: in mandibular fresh extraction sockets, the method of GBR around transmucosal implants with laser-microtextured surface placed into the interadicular septum may be used successfully to counteract the ridge remodelling

Objectives

Methods

Results