COMPARISON OF BONE HEALING AROUND NANO TOPOGRAPHY DENTAL IMPLANT VERSUS CONVENTIONAL IMPLANT

Abstract

INTRODUCTION: Implant surface characteristics differ greatly among various Implants. Early bone healing around the implant surface can be crucial in determining various treatment plans and outcomes. OBJECTIVES: Comparison of early bone healing between two commercially available implants one with a nanotopographical surface and one with a conventionally treated surface in the maxillary anterior region of the oral cavity using cone beam CT. MATERIALS AND METHODS: Seven patients were selected from Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Alexandria University where patients were indicated for bilateral maxillary anterior implants as delayed Implantation with a total of 14 implants divided into two groups: Study group: Seven implants with a nanotopographic surface. Control group: Seven implants with a conventional surface. Bone density was measured according to gray scale using CBCT and dedicated software pre-operatively and at four and six weeks postoperatively. RESULTS: For control group implants the average mean and standard deviation of bone density of the placed implants at four weeks postoperatively was 1010.02 ± 142.59 Hounsfield units and 1104.4 ± 152.9 HU at six weeks post-operatively. While for study group implants the average mean and standard deviation of bone density of the placed implants at four weeks post-operatively was 1208.04 ± 145.82 HU and 1328.85 ± 160.41 HU at six weeks post-operatively. After comparing these results, it was shown that the average mean and standard deviation of bone density of all implants of the study group is greater than the average mean and standard deviation of bone density of all implants of the control group, which results in p-value of <0.001 which is statistically significant. CONCLUSIONS: There is a significant increase in the early bone healing around nanotopographic dental implants as opposed to conventionally chemically modified implants. KEY WORDS: Surface treatment, nanotopographic implants, chemically modified implants, early bone healing, cone beam CT, Hounsfield Units.