The results of this meta- analysis showed no significant changes in enamel microhardness when using the 10 % carbamide peroxide bleaching gel over periods of 7 , 14 and 21 days
Several studies have investigated the effect of bleaching on dental tissues .
The evaluation of the effect of home bleaching with 10 % carbamide peroxide is important for assessing alterations in enamel microhardness that may affect dental health in terms of resistance to masticatory forces .
This meta- analysis was performed in order to determine scientific evidence regarding the effects of home vital bleaching with 10 % carbamide peroxide gel on the microhardness of human dental enamel .
Effects of 10% carbamide peroxide on the enamel surface morphology: a scanning electron microscopy study.
BACKGROUND Several studies have been published about the effect of carbamide peroxide on enamel surface morphology . However , only a few studies have been carried out under intraoral conditions . The purpose of this study was to investigate the effect of two commercially available 10 % carbamide peroxide bleaching products ( Colgate Platinum and Starbrite ) on the enamel surface morphology under intraoral conditions . MATERIAL S AND METHODS Twenty-four subjects were divided into two groups and assigned a product to use for 2 weeks . Epoxy resin replicas obtained from the maxillary right central incisors of the subjects before , immediately after , and 3 months after the bleaching procedure were examined under a scanning electron microscope . RESULTS Immediately after the bleaching procedure , the surface porosity of enamel had increased in the Colgate Platinum group , whereas erosive surface alterations were observed in the Starbrite group . At 3 months , the surface morphology of enamel in the Colgate Platinum group was similar to the untreated enamel surface . In the Starbrite group , erosive defects on the enamel surface had decreased within 3 months , and the appearance of the enamel surface was almost the same as the untreated enamel . CONCLUSION Even though both bleaching agents caused alterations in the surface morphology of enamel , these alterations were reversed within 3 months following treatment . CLINICAL SIGNIFICANCE The results of this study suggest that 10 % carbamide peroxide bleaching products cause alterations in enamel surface morphology immediately after bleaching , and the degree of these alterations depends on the br and of bleaching agent and duration of application time . However , these alterations revert to almost normal within 3 months
The results of this meta- analysis showed no significant changes in enamel microhardness when using the 10 % carbamide peroxide bleaching gel over periods of 7 , 14 and 21 days
Several studies have investigated the effect of bleaching on dental tissues .
The evaluation of the effect of home bleaching with 10 % carbamide peroxide is important for assessing alterations in enamel microhardness that may affect dental health in terms of resistance to masticatory forces .
This meta- analysis was performed in order to determine scientific evidence regarding the effects of home vital bleaching with 10 % carbamide peroxide gel on the microhardness of human dental enamel .