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The International Caries Consensus Collaboration (ICCC) has published recommendations on carious tissue removal to treat cavitated carious lesions in a manner that preserves hard tissue and retains teeth long term. This study quantifies The National Dental Practice-Based Research Network dentists' use of selective caries removal. This cross-sectional questionnaire study assessed reported use of selective caries removal when treating deep caries in asymptomatic and symptomatic teeth in response to clinical case scenarios. Statistical methods included the proportion of respondents concordant with ICCC guidelines at various thresholds and logistic regression to model factors associated with concordance. A total of 500 dentists responded. The study sample was 57% male, mean (SD) age was 50.9 (12.6) years, and 60% worked in private practice settings. Higher levels of concordance for choosing selective caries removal 50% or greater of the time were found for asymptomatic (62.4%; 95% CI, 57.6 to 67.2) than for symptomatic caries (49.3%; 95% CI, 44.4 to 54.2). These differences were significantly associated with type of practice setting. The National Dental Practice-Based Research Network dentists reported using selective caries removal strategies when managing deep carious lesions more often than in previous US and Japanese practice-based research network studies and from results of a systematic review and meta-analysis. Nonetheless, substantive discordance with the ICCC guidelines was seen by the authors of this study. More dissemination and continuing education activities, as well as implementation studies, may further encourage use of selective caries removal to soft or firm dentin when indicated. [ABSTRACT FROM AUTHOR]

Background. Although caries is prevalent in adults, investigators have tested few preventive therapies in adult populations. In a randomized controlled trial, the authors evaluated the effectiveness of xylitol lozenges in preventing caries in adults at elevated risk of developing caries. Methods. The Xylitol for Adult Caries Trial (X-ACT) was a three-site placebo-controlled randomized trial. Participants (n = 691) aged 21 through 80 years consumed five 1.0-gram xylitol or placebo lozenges daily for 33 months. They underwent clinical examinations at baseline and at 12, 24 and 33 months. Results. Xylitol lozenges reduced the caries increment 10 percent. This reduction, which represented less than one-third of a surface per year, was not statistically significant. There was no indication of a dose-response effect. Conclusions. Daily use of xylitol lozenges did not result in a statistically or clinically significant reduction in 33-month caries increment among adults at an elevated risk of developing caries. Clinical Implications. These results suggest that xylitol used as a supplement in adults does not reduce their caries experience significantly. [ABSTRACT FROM AUTHOR]