ArticleInternational journal of implant dentistry2026
Effects of coronal implant neck flutes on early peri-implant osteogenesis and stability.
Article in International journal of implant dentistry, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
purposeLimited research has investigated how implant neck flute design influences early peri-implant osteogenesis and implant stability in vivo. This study evaluated the effects of different neck flute designs on peri-implant bone healing and osseointegration in rat tibiae.
methodsThree types of custom-made implants (13 mm total length, 8 mm screw part, 2 mm diameter) were used: Type A (4 coronal flutes, 1.50 mm length, 0.2 mm notch radius, 0.20 mm depth), Type B (4 coronal flutes, 1.50 mm length, 0.5 mm notch radius, 0.20 mm depth), and Type C (no coronal flutes). The implants were bilaterally inserted into the tibiae of 21 male Wistar rats. After 4 weeks of healing, removal torque testing, micro-computed tomography, histological, and histomorphometric assessments were performed to evaluate osseointegration and the quality and quantity of the peri-implant bone. The assessments included the relative gray value (RGV; water = 0, implant = 100), bone-to-implant contact (BIC), and peri-implant bone volume/tissue volume (BV/TV).
resultsRemoval torque tests demonstrated significant differences among implant types, with Type A and Type B implants exhibiting higher values than Type C. The RGV revealed no significant differences among groups. Histomorphometric analysis revealed no significant differences among groups.
conclusionThe coronal flute design was associated with improved implant stability and osseointegration compared to non-fluted implants. This suggests that neck flute designs may enhance early peri-implant osseointegration and stability.
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