Fontanari, Lucas Amaral [UNESP]Pinto, Shelon Cristina Souza [UNESP]Cavassim, Rodrigo [UNESP]Spin-Neto, Rubens [UNESP]Ishi, Eduardo de Paula [UNESP]Sampaio, José Eduardo Cezar [UNESP]2014-05-272014-05-272011-12-28Brazilian Dental Journal, v. 22, n. 6, p. 479-485, 2011.0103-64401806-4760http://hdl.handle.net/11449/73109Although in vitro studies have shown encouraging results for root surface conditioning with demineralizing agents, in vivo studies have failed to show its benefits in periodontal healing. This can be attributed to several factors, among which, the hypermineralization of dental surface. Therefore, this in vitro study compared, using scanning electron microscopy (SEM), the effect of root surface conditioning with different conditioners (1% and 25% citric acid, 24% EDTA and 50 mg/mL tetracycline hydrochloride) in impacted teeth and in teeth that had their roots exposed to the oral environment. One trained examiner assessed the SEM micrographs using a root surface modification index. There was a tendency of more root surface modification in the group of impacted teeth, suggesting that the degree of root mineralization influences its chemical demineralization.479-485engConditioning agentsHypermineralizationScanning electron microscopySmear layerchelating agentcitric acidcollagenedetic acidtetracyclineadultcementumcomparative studydental surgerydentindrug effectgingiva bleedinghumanmethodologymiddle agedpathologyperiodontal pocketpreventive dentistryscanning electron microscopytooth calculustooth diseasetooth rootultrastructureAdultChelating AgentsCitric AcidCollagenDental CalculusDental CementumDentinEdetic AcidGingival HemorrhageHumansMicroscopy, Electron, ScanningMiddle AgedPeriodontal PocketRoot PlaningSmear LayerTetracyclineTooth RootTooth, ImpactedArtigo10.1590/S0103-64402011000600007S0103-64402011000600007Acesso aberto2-s2.0-842551829272-s2.0-84255182927.pdf9531839078426485