ArticleBioengineering (Basel, Switzerland)2026
Analysis of Primary Stability in Two Designs of Ultrashort Implants: In Vitro Study.
Article in Bioengineering (Basel, Switzerland), 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
backgroundThis in vitro study evaluated the influence of macro and microscopic implant design, drilling protocol, and bone density on the primary stability of 4 mm ultrashort dental implants, aiming to provide evidence-based guidance for their use in severely atrophic posterior jaws.
methodsTwo implant systems were compared: test group (Klockner Essential Cone
conclusionsThe conical macrogeometry with progressive, dense V-shaped threads provides significantly better primary mechanical anchorage than parallel-walled designs in ultrashort (4 mm) implants. Within the limitations of this ex vivo animal bone model study, the results indicate that different drilling protocols significantly influence the primary mechanical stability with insertion torque ≥ 25 Ncm and ISQ ≥ 55 of ultra-short implants, as measured by insertion torque and ISQ values. Certain drilling protocols resulted in higher insertion torque and ISQ compared to others, particularly in Type II and Type III bone.
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