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Year : 2015  |  Volume : 9  |  Issue : 1  |  Page : 11-15

Effect of laser and fluoride application for prevention of dental caries: A polarized microscope analysis

1 Department of Conservative and Endodontics, AMC Dental College, Ahemdabad, Gujarat, India
2 Department of Conservative and Endodontics, GDC, Ahemdabad, Gujarat, India
3 Department of Conservative and Endodontics, Subharti Dental College, Meerut, Utter Pradesh, India
4 Department of Orthodontia, GDC, AMC Dental College, Ahmedabad, Gujarat, India
5 Department of Pedodontia, AMC Dental College, Ahmedabad, Gujarat, India

Correspondence Address:
Dr. Parul Bansal
58/6, Jagriti Vihar, Meerut, Utter Pradesh
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0976-2868.157590

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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.

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