author = {Malik, Akanksha. and Parmar, Girish. and Bansal, Parul. and Bhattacharya, Amit. and Joshi, Niyanta.}, title = {{Effect of laser and fluoride application for prevention of dental caries: A polarized microscope analysis}}, journal ={Journal of Dental Lasers}, volume ={9}, number ={1}, pages = {11-15}, doi = {10.4103/0976-2868.157590}, year = {2015}, abstract ={Aim: Aim of the study was to evaluate the effect of CO 2 pulse laser on acid resistance when irradiated alone or prior to fluoride treatment. Materials and Methods: Totally, 80 extracted premolars were prepared and randomly assigned to four groups (n = 20 for each group): (i) Untreated (control), (ii) fluoride treated, (iii) CO 2 laser treated, (iv) CO 2 laser + fluoride treated. Specimens were exposed to pH cycling, and acid resistance was evaluated by determining the initial surface demineralization of enamel assessed under polarized light microscope. Results: Significant differences were found between the control group and fluoride, laser or laser + fluoride groups (P < 0.05). There was significant difference between laser group and control (P = 0.01) or fluoride group (P = 0.05). There was no significant difference between laser and laser + fluoride group. Conclusion: All applied treatments were capable of reducing caries like lesion progression in dental enamel when compared with the control group. From the parameters measured, the rank order of anti-cariogenic potential of the treatment was, CO 2 laser combined with fluoride varnish, CO 2 laser alone and fluoride varnish alone.}, URL ={http://www.jdentlasers.org/article.asp?issn=2321-1385;year=2015;volume=9;issue=1;spage=11;epage=15;aulast=Malik;t=6}, eprint ={http://www.jdentlasers.org/article.asp?issn=2321-1385;year=2015;volume=9;issue=1;spage=11;epage=15;aulast=Malik;t=6} }