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Stability of dental implants with sandblasted and acid-etched (SLA) and modified (SLActive) surfaces during the osseointegration period.

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Sayin Ozel, Gulsum
Inan, Ozgur
Secilmis Acar, Asli
Alniacik Iyidogan, Gamze
Dolanmaz, Dogan
Yildirim, Gulsun
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Abstract
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). 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. One week following the implantation, implant stability increased from 70 to 77.67 for SLA and from 71.67 to 79 for SLActive ( < 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 ( > 0.05). For both implant surfaces, increased stability was observed over time, with no significant differences between the groups.
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Bone-implant interface, Dental implants, Osseointegration, Resonance frequency analysis, SLA, SLActive
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