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The hazardous effects and safety measures of lasers in dentistry: A review

Brij Kumar, Nilotpol Kashyap, Alok Avinash, Harsha Munot, Pallavi Pawar, Pooja Das


Background: LASER is an acronym which stands for light amplification by stimulated emission of radiation. The laser technology has emerged from hospital operating rooms and has become available to office practices, clinics, and private enterprises; the burden of responsibility for safety has shifted from hospital staff to the individual user, often without benefit of appropriate or adequate resources. This review documents on various dental laser hazards that can arise due to improper use of instruments, direct exposure to laser energy. The detail of laser safety and role of individual involved in it has been discussed in this review.  Aim: The aim of this review was to collect articles related to the hazardous effects and safety measures of lasers in dentistry. To access the related available articles, an electronic search was performed on several websites, including PubMed, Google Scholar, Science Direct, Inter Science, and Scopus. According to the results of collected papers, there are various laser hazards, which could be harmful to individual and can lead to potential damage of human body. Hence, dental laser safety is an important part of laser dentistry. The laser produces an intense, highly directional beam of light. The most common cause of laser-induced tissue damage is thermal in nature, where the tissue proteins are denatured due to the temperature rise following absorption of laser energy. Conclusion: Of all hazards, complacency is the most dangerous, and it is imperative to develop a risk management perspective on laser safety. Clinical Significance: Proper safety management requires a four-fold approach including: Knowledge of standards, identification of hazards and risks, implementation of appropriate control measures, and consistent program audit to demonstrate quality assurance.


Biohazards, dental lasers, dentistry, lasers, laser hazards, laser safety

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Walsh LJ. The current status of laser applications in dentistry. Aust Dent J 2003;48:146-55.

Leo M, Robert P, Blankenau R. The history and development of laser dentistry. Lasers in Dentistry. Chicago: Quintessence Publishing; 1995. p. 17-27.

Sosis MB. Operating Room Safety During Laser Surgery. International Laser Safety Conference ISLC November, Section 6-9; 1990.

White JM, Goodis HE, Kudler JJ, Tran KT. Thermal Laser Effects on Intraoral Soft Tissue, Teeth and Bone in vitro, third Generation of on Laser in Dentistry. 5th ed. Salt Lake: University of Utah; 1992.

Baggish MS, Poiesz BJ, Joret D, Williamson P, Refai A. Presence of human immunodeficiency virus DNA in laser smoke. Lasers Surg Med 1991;11:197-203.

Coluzzi DJ. Fundamentals of dental lasers: Science and instruments. Dent Clin North Am 2004;48:751-70.

Convissar RA. Laser palliation of oral manifestations of human immunodeficiency virus infection. J Am Dent Assoc 2002;133:591-8.

Arnabat J. Application of the erbium: YAG laser in the second stage implants surgery. Presented at the 7th International Congress of Lasers in Dentistry. Belgium: International Society for Lasers in Dentistry; 2000.

Dederich DN, Bushick RD; ADA Council on Scientific Affairs and Division of Science; Journal of the American Dental Association. Lasers in dentistry: Separating science from hype. J Am Dent Assoc 2004;135:204-12.

Piccione PJ. Dental laser safety. Dent Clin North Am 2004;48:795-807.

Parkins F, O’Toole T, Yancy J. Laser treatments of aphthous and herpetic lesions. J Dent Res 1994;73:190.

Radatti DA, Baumgartner JC, Marshall JG. A comparison of the efficacy of Er, Cr: YSGG laser and rotary instrumention in root canal debridement. J Am Dent Assoc 2006;137:1261-6.

Takeda FH, Harashima T, Kimura Y, Matsumoto K. Efficacy of Er: YAG laser irradiation in removing debris and smear layer on root canal walls. J Endod 1998;24:548-51.

Takamori K. A histopathological and immunohistochemical study of dental pulp and pulpal nerve fibers in rats after the cavity preparation using Er: YAG laser. J Endod 2000;26:95-9.

Visuri SR, Gilbert JL, Wright DD, Wigdor HA, Walsh JT Jr. Shear strength of composite bonded to Er: YAG laser-prepared dentin. J Dent Res 1996;75:599-605.

Vlacic J, Meyers IA, Kim J, Walsh LJ. Laser activated fluoride treatment of enamel against an artificial caries challenge: Comparison of five wavelengths. Aust Dent J 2007;52:101-5.

Laser Institute of America. American National Standard for Safe Use of Lasers. ANSI Z 136.1-2000. Orlando, FL: Laser Institute of America; 2000.

Powell GL, Ellis R, Blankenau RJ, Schouten JR. Evaluation of argon laser and conventional light-cured composites. J Clin Laser Med Surg 1995;13:315-7.

Pogrel MA, Muff DF, Marshall GW. Structural changes in dental enamel induced by high energy continuous wave carbon dioxide laser. Lasers Surg Med 1993;13:89-96.

Sliney DH. Laser safety. Lasers Surg Med 1995;16:215-25.

Leo M, Robert P, Blankenau R. Laser safety in dental practice. Lasers in Dentistry. Chicago: Quintessence Publishing; 1995. p. 85-99.


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