Journal of IMAB - Annual Proceeding (Scientific Papers)
Publisher: Peytchinski, Gospodin Iliev
ISSN: 1312 773X (Online)
Issue: 2014, vol. 20, issue 1
Subject Collection: Oral and Dental Medicine
Pages: 500-503
DOI: 10.5272/jimab.2014201.500
Published online: 20 June 2014

J of IMAB 2014 Jan-Jun;20(1):500-503
Galia G. Zhegova1 Corresponding Autor, Maya R. Rashkova1, Bozhidar I. Yordanov2.
1) Department of Pediatric Dentistry, Faculty of Dental Medicine, Medical University- Sofia, Bulgaria.
2) Department of Prosthetic Dentistry, Faculty of Dental Medicine, Medical University- Sofia, Bulgaria.

The aim of this study was to evaluate adolescents’ acceptance and pain perception of Er-YAG laser preparation in comparison to conventional mechanical preparation.
Material and methods: Forty four adolescents between the age of 16 and 18 years with bilateral matched pairs of carious permanent molars participated in this study. In each patient one of the 2 cavities  was prepared conventionally, the other with the Er-YAG laser. All cavities were restored with light-cured composite resin following the application of acid etch and a bonding agent. The patients were instructed to rate pain (sensitivity) during treatment according to visual analogue scale and to decide which method they would prefer for their future caries treatment.
Results: The patients rated lower pain perception during laser treatment. It was found that 86.36 % of the adolescents indicated that they would prefer the Er:YAG laser preparation for further caries treatment.
Conclusion: The application of the Er-YAG laser for carious tissue removal, compared to conventional mechanical preparation, is perceived as more comfortable and the adolescents prefer it for a future treatment.

Key words: Er-YAG Laser, Cavity Preparation, Pain Perception, Adolescents,

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Please cite this article as:
Zhegova GG, Rashkova MR, Yordanov BI. Perception of Er-YAG laser dental caries treatment in adolescents - a clinical evaluation. J of IMAB. 2014 Jan-Jun;20(1):500-503. doi: 10.5272/jimab.2014201.500.

Correspondence to: Dr. Galia G. Zhegova, Department of Pediatric Dentistry, Faculty of Dental Medicine, Medical University - Sofia; 1, St. George Sofiiski Str., 1431 Sofia, Bulgaria; E-mail:

1. Smith TA, Thompson JA, Lee WE. Assessing patient pain during dental laser treatment. J Am Dent Assoc.1993 Feb;124 (2):90-95. [PubMed]
2. Hibst R, Keller U. Experimental studies of the application of the Er:YAG laser on dental hard substances: I. Measurement of the ablation rate. Lasers Surg Med. 1989; 9(4):338-344. [PubMed]
3. Bader C, Krejci I. Indications and limitations of Er:YAG laser applications in dentistry. Am J Dent. 2006 Jun;19(3):178-186. [PubMed]
4. Glockner K, Rumpler J, Ebeleseder K, Städtler P. Intrapulpal temperature during preparation with the Er:YAG laser compared to the conventional bur: An in vitro study. J Clin Laser Med Surg. 1998 Jun;16(3):153-157. [PubMed]
5. Hibst R, Keller U. Heat effect of pulsed Er:YAG laser radiation. Laser Surg, 1990 Jan;1200(2):379. [CrossRef]
6. Perhavec T, Diaci J. Comparisson of Er-YAG and Er,Cr-YSGG dental lasers. J Oral Dental Appl. 2008 Jun;8(2):87-94.
7. Visuri SR, Walsh JT, Wigdor HA. Erbium laser ablation of dental hard tissue: effect of water cooling. Lasers in Surgery and Medicine. 1996; 18(3):294-300. [CrossRef]
8. Krmek SJ, Miletic I, Simeon P, Mehičić GP, Anić I, Radišić B. The temperature changes in the pulp chamber during cavity preparation with Er-YAG laser using a very short pulse. Photomed Laser Surg. 2009 Apr;27(2):351-355. [PubMed] [CrossRef]
9. Kornblit R, Trapani D, Bossu M, Muller-Bolla M, Rocca JP, Polimeni A. The use of Er-YAG laser for caries removal in paediatric patients following minimally invasive Dentistry concepts.  Eur J Paediatr Dent.  2008 Jun;9(2):81-87. [PubMed]
10. Bjоrndal L, Thylstrup A. A structural analysis of approximal enamel caries lesions and subjacent dentin reactions. Eur J Oral Sci. 1995 Feb;103(1):25-31. [PubMed]
11. Martens LC. Laser physics and a review of laser applications in dentistry for children. Eur Arch Paediatr Dent. 2011 Apr;12(2):61-67. [PubMed]
12. Boj H, Galofre N, Espana A, Espasa E. Pain perception in Pediatric Patients Undergoing Laser Treatments. J Oral Laser Applications. 2005 Feb;5(2):85-89.
13. Liu JF, Lai YL, Shu WY, Lee SY. Acceptance and efficiency of Er:YAG laser for cavity preparation in children. Photomed Laser Surg. 2006 Aug;24(4):489-493. [PubMed] [CrossRef]
14. Genovese MD, Olivi G, Laser in paediatric dentistry: patient acceptance of hard and soft tissue therapy.  Eur J Paediatr Dent.  2008 Mar;9(1):13-17. [PubMed]
15. Takamori K, Furukawa H, Morikawa Y, Katayama T, Watanabe S. Basic study on vibrations during tooth preparations caused by high-speed drilling and Er:YAG laser irradiation. Lasers Surg Med. 2003 Jan;32(1):25-31. [PubMed] [CrossRef]
16. Keller U, Hibst R, Geurtsen W, Schilke R, Heidemann D, Klaiber B, et al. Erbium:YAG laser application in caries therapy. Evaluation of patient perception and acceptance. J Dent. 1998 Nov;26:649-656. [PubMed] [CrossRef]
17. Fornaini C, Riceputi D, Lupi-Pegurier L, Rocca JP. Patient responses to Er-YAG laser when used for conservative dentistry. Lasers Med Sci 2012 Nov;27(6):1205-1212. [PubMed] [CrossRef]
18. Matsumoto K, Wang X, Zhang C, Kinoshita J. Effect of a novel Er:YAG laser in caries removal and cavity preparation: a clinical observation. Photomed Laser Surgery. 2007 Mar;25:8-13. [PubMed] [CrossRef]

Received: 06 April 2014
Published online: 20 June 2014

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