Sayin Ozel, GülsümInan, ÖzgürSecilmis, AsliIyidogan, Gamze AlniacikDolanmaz, Do?anYildirim, Gülsün2026-01-242026-01-2420212008-210Xhttps://doi.org/10.34172/joddd.2021.037https://hdl.handle.net/20.500.12868/4619Background. The surface properties of implants are effective factors for increasing the osseointegration and activity of osteoprogenitor cells. This study compared the stability of dental implants with sandblasted and acid-etched (SLA) and modified surfaces (SLActive) using the resonance frequency analysis (RFA). Methods. In a split-mouth design, 50 dental implants with either SLA surface properties (n = 25) or modified (SLActive) surface properties (n = 25) were placed in the mandibles of 12 patients with a bilateral posterior edentulous area. Implant stability was measured using RFA (Osstell) at implant placement time and every week for 1, 2, and 3 months before the conventional loading time. Results. One week following the implantation, implant stability increased from 70 to 77.67 for SLA and from 71.67 to 79 for SLActive (P < 0.05). Stability improved each week except in the 4th week in SLActive surface measurements. No significant differences were observed between the groups at 2 and 3 months (P > 0.05). Conclusions. For both implant surfaces, increased stability was observed over time, with no significant differences between the groups. © 2021 The Author(s).eninfo:eu-repo/semantics/openAccessBone-implant interfaceDental implantsOsseointegrationResonance frequency analysisSLASLActiveArticle10.34172/joddd.2021.0371542262312-s2.0-85125638571Q4