Koparal, MahmutGulsun, BelginDeveci, EnginAgacayak, K. SerkanHamidi, Arif2024-04-242024-04-2420160884-6812https://hdl.handle.net/11468/22594OBJECTIVE: To determine the effect of zoledronic acid on graft materials in bone calvarial defects. STUDY DESIGN: Eighty adult (12 weeks) Sprague-Dawley male rats weighing from 300-350 g were divided into groups: calvarial defect, calvarial defect + synthetic graft, and calvarial defect + xenograft. All groups received zoledronate intravenously for a week after surgery and were sacrificed at either 6 or 12 weeks after their operation. The rat calvariae were fixed in 10% neutral buffered formalin before decalcification in 10% ethylenediaminetetraacetic acid for 20 days. Calvarial bone samples were then dehydrated and processed for embedding in paraffin wax. Sections 5 ?m thick were stained with hematoxylin and eosin and examined by light microscopy. RESULTS: The effects of zoledronic acid, a third-generation nitrogen-containing bisphosphonate, on different graft materials in rats with critical-size calvarial defects were analyzed and compared. Significantly less graft resorption was identified in zoledronic acid-treated rats that had received a xenograft than in either the untreated rats or those with a synthetic graft. In the xenograft group primary ossification was visible at week 12, and the graft had entered the bone to a greater extent than in the other experimental groups or in the control group. Osseous structures were also observed more clearly in this group than in the others. CONCLUSION: Zoledronic acid histopathologic bone graft stimulates bone formation. Zoledronic acid may be considered among the therapeutic methods available to improve the bone formation process in calvarial bone formation.eninfo:eu-repo/semantics/closedAccessAntiresorptive DrugsBone DefectBone DysplasiasBone GraftsBone RegenerationBone RemodelingBone ResorptionBone Resorption InhibitorsBone Resorption Inhibitory AgentsDevelop Mental Bone DiseaseFracture HealingOsteoconductionZoledronateZoledronic AcidArticle382117125WOS:00038106220000827386633Q4