Abstract
Statement of problem:Marginal bone changes around implant supported complete dentures is one of the most significant factor that affect the clinical success of dental implants which depends mainly on osteointegration and surface treatment. Purpose. This study aimed to assess the change in marginal bone height of two different surface treated implants retaining and supporting complete overdenture. Materials and Methods.50-60 yearsoldcompletelyedentulous patients wereselectedandand rehabilitatedwithmaxillarycomplete dentures and mandibularoverdenturesretained by twoball and socket dental implants. The implants surface treatmentsusedwereacidetch andresorbable blast media (RBM). Marginal boneheight changes wereassessed at denture insertion, after six- and twelve-monthusingconebeamcomputedtomography (CBCT). Date wascollected and Students t-test wasperformed. Results. The change of marginal bone of the acid etched and RPM implants throughout the follow up periods showed no significant statistical difference among the two type of implants at time of loading, after the 6th and 12th month. Conclusions. Acid etchedandRBM dental implants supporting and retaining complete mandibular overdentures showed significant success rates regarding the marginal bone changes during the follow up period. Clinical Implications: Guided implant placementgranting more accurate and predictable implant position while reducing the patient fear and anxiety. The marginal bone level changes were within the reported range of the literature of both acid etched and RBM dental Implants.
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