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A meta-analysis was conducted to assess the relationship between parental age and the occurrence of non-syndromic oral clefts. The questions addressed if younger or older mothers and fathers have an increased risk of having a child with non-syndromic oral clefts.Data from cohort studies, case-control, cross-sectional and prevalence studies in which the association between parental age and oral clefts...
To evaluate the influence of light on bleaching efficacy and tooth sensitivity during in-office vital bleaching.We performed a literature search using Medline, EMBASE and Cochrane Central up to September 2011.All randomised controlled trials (RCTs) or quasi-RCTs comparing the light-activated bleaching system with non-activation bleaching system were included. Reports without clinical data concerning...
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