Abstract
ObjectiveTo compare the success rates of restoring untreated and SDF-treated dentine caries lesions in primary teeth with atraumatic restorative treatment (ART) approach. MethodCavitated dentine caries lesions in preschool children were randomly allocated to two groups to be applied with either 38% silver diamine fluoride (SDF) solution or tonic water (control) ten weeks before being restored with the ART approach. Status of the restorations were assessed every six months by a blinded independent examiner. Multilevel logistic regression and multilevel survival analyses were conducted to assess the restoration success rates. ResultsA total of 194 children (SDF group, 101; control group, 93) were included, with 260 and 249 ART restorations placed in the SDF and the control groups, respectively. At 24-month follow-up, 88 (87 %) and 84 (90 %) children remained in the SDF and the control groups, respectively. There was no significant difference between the ART restoration success rates of the two study groups (p > 0.05). The success rate of ART restorations was associated with the class of restorations. Class I restorations had the highest success rate (∼50 %), followed by Class V (∼35 %), Class II (∼15 %) and Class III (<10 %). Besides, the mean time used to place an ART restoration in a SDF-treated caries lesion was shorter than that in untreated lesion (4.8 vs. 5.1 min, p = 0.006). ConclusionPrior SDF application does not significantly affect the success rate of ART restorations placed in primary teeth. Besides, it is faster to place ART restorations in caries lesions that have been previously treated with SDF. Clinical significancePrior application of silver diamine fluoride solution on cavitated dentine caries lesions in primary teeth can shorten the average time required to place an ART restoration while not jeopardizing the success rate of the restorations.
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