Neodymiun: yttrium Aluminum Garnet Laser in Caries Prevention of Primary Teeth: one-year Follow-up

The aim of this controlled clinical study was to evaluate the Neodymiun:yttrium aluminum garnet laser, with or without fluoride, in prevention of occlusal caries in the primary dentition. High caries risk children (7.6±1.4 years) were selected for this study and received the following treatments: G1‐1st molar was negative control, and the 2nd molar received a resin sealant; G2‐1st molar was negative control, and the 2nd molar received laser irradiation (100 milliJoule, 5 Hertz ‐ 0.5 Watts); G3‐1st molar received only fluoride gel and the 2nd molar received fluoride gel + laser irradiation; G4‐1st molar received only fluoride varnish and the 2nd molar received fluoride varnish + laser irradiation. Patients were followed up to 12 months to evaluate the formation of white‐spot lesions and/or caries cavities by three calibrated observers.