HEALING OF PERI-IMPLANT TISSUES AFTER FLAPLESS AND FLAPPED IMPLANT INSTALLATION

Abeer Bayounis (1) , Hamad Alzoman (2) , John Jansen (3, 4) , Nadir Babay (2)

1 Department of Peridontics and Community Dentistry
2 Department of Periodontics and Community Dentistry
3 Biomaterials
4 Dental Implant and Osseointegration Research Chair

Aim: The aim of this study was to investigate the consequences of different flapless procedures for the installation of dental implants on peri-implant bone response Materials and methods: After bilateral extraction of the mandibular second and third premolars and a three-month healing period, 30 SLActive ® implants were installed for three months in 10 Beagle dogs according to three different surgical approaches, i.e.: (1) flapped (F), (2) tissue punch flapless (P), and (3) direct flapless (DF). Results: At harvesting, 29 implants were analyzed. Micro-CT and histomorphometrical evaluation (which included also the mobile implants) showed comparable results in bone volume (F=55±9, P=51±4, DF=54±5) and crestal bone level (F=3420±762, P=5358±1681, DF=3843±433). However, the implants inserted with the punch approach revealed a significantly lower 1st bone contact (F=3420±762, P=5358±1681, DF=3843±433) and bone-to-implant contact percentage (F=70±12, P=48±23, DF=73±12). Considering the gingival response, the barrier epithelium was also significantly deeper around the implants installed with the punch approach (F=1383±332, P=2278±1154, DF=1107±300). Conclusions: The results indicate that a flapless surgical technique can be used for the installation of oral implants. In addition using a tissue punch wider than the implant diameter should be avoided, as it can jeopardize the outcome of the implantation procedure.

Mots clés: Medicine

Abeer Bayounis, Hamad Alzoman, John Jansen, Nadir Babay. HEALING OF PERI-IMPLANT TISSUES AFTER FLAPLESS AND FLAPPED IMPLANT INSTALLATION. Journal of Clinical Periodontology, 2011, 38 (8), pp.754. ⟨10.1111/j.1600-051X.2011.01735.x⟩. ⟨hal-00639786⟩