The impact of a modified cutting flute implant design on osseointegration |
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| Affiliation: | 1. Department of Prosthodontics, Faculty of Odontology, Malmö University, Malmö, Sweden;2. Department of Biomaterials and Biomimetics, New York University College of Dentistry, New York, USA;3. Department of Dentistry, UNIGRANRIO, Duque de Caxias, RJ, Brazil;4. Department of Epidemiology, New York University College of Dentistry, New York, USA;5. Department of Periodontology, Dental Research Division and Oral Implantology Clinic, Guarulhos University, Guarulhos, SP, Brazil;6. Department of Periodontology and Implant Dentistry, New York University College of Dentistry, New York, USA;1. DENTSPLY Implants Manufacturing GmbH, Mannheim, Germany;2. Department of Oral and Maxillofacial Surgery, University of Erlangen, Nuremberg, Erlangen, Germany;1. Department of Biomaterials and Biomimetics and Periodontology and Implant Dentistry, New York University College of Dentistry, New York, USA;2. Division of Engineering, New York University Abu Dhabi, Abu Dhabi, United Arab Emirates;3. Department of Prosthodontics, Faculty of Odontology, Malmö University, Malmö, Sweden;1. Université Paris-Est, Laboratoire Modélisation et Simulation Multi Echelle, UMR CNRS 8208, 61 avenue du Général de Gaulle, 94010 Créteil cedex, France;2. Septodont, 58 Rue Pont de Créteil, 94100 Saint-Maur-des-Fossés, France;3. Service de Chirurgie Plastique, Reconstructrice et Esthétique, CHU H. Mondor, 94017 Créteil cedex, France;4. CNRS, Laboratoire Modélisation et Simulation Multi Echelle, UMR CNRS 8208, 61 avenue du Général de Gaulle, 94010 Créteil cedex, France;1. Private Practice, Bologna, Italy;2. Private Practice, Bologna, Italy;3. Full Professor, Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, Chieti, Italy |
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| Abstract: | Information concerning the effects of the implant cutting flute design on initial stability and its influence on osseointegration in vivo is limited. This study evaluated the early effects of implants with a specific cutting flute design placed in the sheep mandible. Forty-eight dental implants with two different macro-geometries (24 with a specific cutting flute design – Blossom group; 24 with a self-tapping design – DT group) were inserted into the mandibular bodies of six sheep; the maximum insertion torque was recorded. Samples were retrieved and processed for histomorphometric analysis after 3 and 6 weeks. The mean insertion torque was lower for Blossom implants (P < 0.001). No differences in histomorphometric results were observed between the groups. At 3 weeks, P = 0.58 for bone-to-implant contact (BIC) and P = 0.52 for bone area fraction occupied (BAFO); at 6 weeks, P = 0.55 for BIC and P = 0.45 for BAFO. While no histomorphometric differences were observed, ground sections showed different healing patterns between the implants, with better peri-implant bone organization around those with the specific cutting flute design (Blossom group). Implants with the modified cutting flute design had a significantly reduced insertion torque compared to the DT implants with a traditional cutting thread, and resulted in a different healing pattern. |
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| Keywords: | implants cutting flute design macro-geometry thread design insertion torque histomorphometry primary stability secondary stability osseointegration |
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