A 1-YEAR COMPARATIVE STUDY OF MARGINAL BONE CHANGE IN 2 SYSTEMS OF BONE-LEVEL, TAPERED IMPLANTS

Abstract

Among the tapered, bone-level implants available, Straumann Bone Level Tapered (BLT)^® implant system (Straumann^®, Switzerland) and Helix GM^® implant system (Neodent^®, Brazil) are widely used. However, to our knowledge, there is no evidence that compares marginal bone loss between these two systems. Therefore, this study focused on the difference of the marginal bone loss in radiographic findings between these two implant systems after 1 year of implant placement. Patients with Straumann Bone Level Tapered (BLT)^® and Helix GM^® implants were recruited. The intraoral periapical radiographs at baseline (T0), 6 months (T1), and 1 year (T2) after implant placement were evaluated and measured changes in marginal bone level. Between-group differences in marginal bone change at 1 year were not statistically significant. However, both groups showed statistically significant within-group changes at 6 months and 1 year. The mean marginal bone levels were 0.719±0.736 and 0.54±0.772 in Straumann Bone Level Tapered (BLT)^®, and 0.90±0.596 and 0.95±0.465 in Helix GM^® group, at 6 months and 1 year, respectively. It could be concluded by the study that there was no difference in changes of marginal bone level between the two implant systems after 1 year of placement. Hence, differences in mean marginal bone level at 6 months and 1 year were observed in in both groups, though not clinically significant.

Keywords: Bone-Level Implant, Marginal Bone Loss, Peri-Implant Marginal Bone