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Information Journal Paper

Title

NEW FINDINGS ON LASERS IN PREVENTIVE DENTISTRY

Pages

  30-30

Keywords

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Abstract

 The first laser applied in dental research was a ruby laser which was in visible light range. It was used successfully for prevention of subsurface demineralization. With the introduction of different wavelengths of lasers with different materials, laser application is becoming a complementary method or even a substitute to conventional methods of caries prevention in modern dentistry. Studies have reported synergistic effects of laser with fluoride on caries prevention; although there is no agreement on the most effective type of laser and laser parameters for caries prevention.The lasers available for caries prevention are CO2, Er: YAG, Er, Cr: YSGG, Nd: YAG, Argon, and diode lasers. Each laser increases tooth resistance to demineralization through specific irradiation parameters and affects tooth substrate via different mechanisms.Several mechanisms have been reported for the effect of laser on caries prevention. The most accepted theory for the effect of CO2 laser on enamel resistance to caries is carbonate loss from the apatite crystal, leaving the mineral more acid resistant. This theory is called organic blocking, which happens at temperatures lower than 400oC. This theory is also present for other types of lasers. Enamel solubility is also related to the loss of water content, increase in hydroxyl ions, and formation of pyrophosphate. Creation of microspaces on the tooth surface is another mechanism for caries resistance. During acidic challenges, the calcium and phosphate ions detached from the tooth surface trap into these microspaces instead of been released into the oral cavity, and are kept as reservoirs for further remineralization phases.The organic matrix of enamel is also important in the laser caries preventive effect. After heat treatment of enamel surface by laser irradiation, the organic matrix is removed and more highly mineralized apatite crystals are left with blocked interprismatic spaces.Considering the diversity of the research subjects, lasers, and parameters in previous studies, it would be more beneficial for clinical application if future studies focus on determining the exact parameters of each laser for different applications. Comparison of different lasers in similar experimental conditions, determining the effect of fluoride in combination with laser treatment, comparing different compositions of fluoride, and also evaluation of the advantages and disadvantages of fissure sealant therapy with lasers or even focusing on changing oral microbial flora in high risk groups would all guide us to more exact information and better lead the studies on laser technology to clinical practice. I will try to use this opportunity to discuss these concepts.

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    APA: Copy

    AM KALHORI, KATAYOUN, & FEKRAZAD, REZA. (2018). NEW FINDINGS ON LASERS IN PREVENTIVE DENTISTRY. JOURNAL OF LASERS IN MEDICAL SCIENCES, 9(SUPPL A (9TH WORLD CONGRESS OF SOLA)), 30-30. SID. https://sid.ir/paper/326096/en

    Vancouver: Copy

    AM KALHORI KATAYOUN, FEKRAZAD REZA. NEW FINDINGS ON LASERS IN PREVENTIVE DENTISTRY. JOURNAL OF LASERS IN MEDICAL SCIENCES[Internet]. 2018;9(SUPPL A (9TH WORLD CONGRESS OF SOLA)):30-30. Available from: https://sid.ir/paper/326096/en

    IEEE: Copy

    KATAYOUN AM KALHORI, and REZA FEKRAZAD, “NEW FINDINGS ON LASERS IN PREVENTIVE DENTISTRY,” JOURNAL OF LASERS IN MEDICAL SCIENCES, vol. 9, no. SUPPL A (9TH WORLD CONGRESS OF SOLA), pp. 30–30, 2018, [Online]. Available: https://sid.ir/paper/326096/en

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    مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources
    مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources
    مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources
    مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources
    مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources
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