title: Nd:YAG laser in occlusal caries prevention of primary teeth: a randomized clinical trial.
abstract: Dental caries is still the most prevalent chronic disease affecting human populations. Among the preventive treatments performed, it has been reported that laser irradiation combined with topical fluoride can induce an even greater increase in enamel caries resistance. The aim of this study was to evaluate the Nd:YAG laser, with or without fluoride, in occlusal caries prevention of the primary dentition. A double-blind split-mouth study design was used. Fifty-two children with high caries risk (7.6 ± 1.4 years) were selected and received the following: G1--the first molar was a negative control, and the second received a resin sealant; G2--the first molar was a negative control, and the second received laser irradiation (50 mJ, 10 Hz, 0.5 W); G3--the first molar received only acidulate phosphate fluoride (APF), and the second received APF + laser; G4--fisrt molar received only fluoride varnish, and the second received fluoride varnish + laser. Patients were followed up to 12 months to evaluate the presence of white-spot lesions and/or caries cavities by three calibrated observers. Thirty-five patients completed the study. Significant differences were found between the treatment and control groups (p < 0.05). The laser-alone and resin sealant resulted in statistically lower caries formation than the negative control group (p < 0.05). Nd:YAG laser irradiation in primary teeth effectively prevented occlusal caries in pits and fissures when used alone with lower energy over a 1-year period.
authors: Department of Restorative Dentistry, Ribeirão Preto Dental School, University of São Paulo, Avenida do Café, s/nº, Monte Alegre, CEP 14040-904, Ribeirão Preto, SP, Brazil, rauccineto@yahoo.com.br.
authors: Walter
authors: W
authors: Raucci-Neto
authors: Larissa Moreira Spinola
authors: LM
authors: de Castro-Raucci
authors: Cesar Penazzo
authors: CP
authors: Lepri
authors: Juliana Jendiroba
authors: JJ
authors: Faraoni-Romano
authors: Jaciara Miranda
authors: JM
authors: Gomes da Silva
authors: Regina Guenka
authors: RG
authors: Palma-Dibb
mesh_terms: D002648:Child; D003731:Dental Caries / Q000517:prevention & control* / Q000601:surgery*; D003766:Dental Occlusion; D004311:Double-Blind Method; D006801:Humans; D053844:Lasers, Solid-State; D013997:Time Factors; D014094:Tooth, Deciduous / Q000473:pathology / Q000528:radiation effects*
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