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Effects of zoledronic acid and dexamethasone on early phases of socket healing after tooth extraction in rats : a preliminary macroscopic and microscopic quantitative study

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Effects of zoledronic acid and dexamethasone on early phases of socket healing after tooth extraction in rats : a preliminary macroscopic and microscopic quantitative study

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dc.contributor.author Mergoni, Giovanni es
dc.contributor.author Vescovi, Paolo es
dc.contributor.author Passerini, Pietro es
dc.contributor.author Maestri, Roberta es
dc.contributor.author Corradi, Domenico es
dc.contributor.author Sala, Roberto es
dc.contributor.author Govoni, Paolo es
dc.date.accessioned 2019-07-02T09:56:01Z
dc.date.available 2019-07-02T09:56:01Z
dc.date.issued 2019 es
dc.identifier.citation Mergoni, Giovanni ; Vescovi, Paolo ; Passerini, Pietro ; Maestri, Roberta ; Corradi, Domenico ; Sala, Roberto ; Govoni, Paolo. Effects of zoledronic acid and dexamethasone on early phases of socket healing after tooth extraction in rats : a preliminary macroscopic and microscopic quantitative study. En: Medicina oral, patología oral y cirugía bucal. Ed. inglesa, 24 3 2019: 18- es
dc.identifier.uri https://hdl.handle.net/10550/70682
dc.description.abstract The exact pathogenesis of medication-related osteonecrosis of the jaw (MRONJ) is still unknown. The aim of this paper was to investigate the effects of zoledronic acid and dexamethasone on the early phases of socket healing in rats subjected to tooth extractions. Thirty male Sprague-Dawley rats were divided into 2 groups: pharmacologically treated group (T, n=20) and non-pharmacologically treated group (C, n=10). T group rats received 0.1 mg/Kg of zoledronic acid (ZOL) and 1 mg/Kg of dexamethasone (DEX) three times a week for 10 consecutive weeks. C group rats were infused with vehicle. After 9 weeks from the first infusion, first maxillary molars were extracted in each of the rats. Quantitative macroscopic and microscopic analysis was performed to evaluate socket healing 8 days after extraction. Pharmacologically treated rats showed significant inhibition of bone remodeling. Connective tissue/alveolar bone ratio, osteoclast number and woven bone deposition were significantly reduced in group T compared to group C. Conversely, the proportion of necrotic bone was higher in group T compared to group C (0.8% and 0.3%, respectively. P=0.031). ZOL plus DEX do not cause gross effects on socket healing at a macroscopic level. Our findings confirmed that exposure to ZOL plus DEX impairs alveolar wound repair. Inhibition of osteoclastic resorption of socket walls after tooth extraction and the inability to dispose of the necrotic bone may be considered the initial steps of MRONJ onset. es
dc.title Effects of zoledronic acid and dexamethasone on early phases of socket healing after tooth extraction in rats : a preliminary macroscopic and microscopic quantitative study es
dc.type journal article es_ES
dc.subject.unesco UNESCO::CIENCIAS MÉDICAS es
dc.identifier.doi 10.4317/medoral.22883 es
dc.type.hasVersion VoR es_ES

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