European Archives of Paediatric Dentistry

, Volume 12, Issue 2, pp 93–95 | Cite as

The effect of low level laser therapy on pain during dental tooth-cavity preparation in children

  • I. TanbogaEmail author
  • F. Eren
  • B. Altınok
  • S. Peker
  • F. Ertugral


AIM: To evaluate the effect of low level laser therapy on pain during cavity preparation with laser in paediatric dental patients. STUDY DESIGN AND METHODS: The study was carried out on 10 children aged 6 to 9 years old for a total of 20 primary molar teeth. For laser preparation an Er: YAG laser was used. Half of the preparations were treated by low level laser therapy (LLLT) before laser preparation and the remaining half without LLLT (non-LLLT) before laser preparation. All cavities were prepared by ER:YAG laser, restored with light-cured composite resin following the application of acid etching and bonding agent. Children were instructed to rate their pain on the visual analogue scale (VAS) from 0 to 5 points. Statistical analyses were performed using Mann Whitney U test. REsulTs: VAS Median (min–max) scores were 1(0–2) for LLLT and 3(1–4) for the non-LLT treated children. Between LLLT and non-LLLT groups results were statistically significant (p<0.01). CONCLUSIONS: The use of LLLT before cavity preparation with laser decreased pain in paediatric dental patients.

Key words

Low level laser therapy pain children 


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. Genovese MD, Olivi G. Laser in paediatric dentistry:patient acceptance of hard and soft tissue therapy. Eur J Paediatr Dent. 2008;9(1):13–7.PubMedGoogle Scholar
  2. Glockner K, Rumpler J, Ebeleseder K, Städtler P. Intrapulpal temperature during preparation with the Er:YAG laser compared to the conventional burr: an in vitro study. J Clin Laser Med Surg. 1998 Jun;16(3):153–7.PubMedGoogle Scholar
  3. Kato J, Moriya K, Jayawardena JA, Wijeyeweera RL. Clinical application of Er:YAG laser for cavity preparation in children. J Clin Laser Med Surg. 2003Jun;21(3):151–5.PubMedCrossRefGoogle Scholar
  4. Keller U, Hibst R, Geurtsen W, Schilke R, Heidemann D, Klaiber B, Raab WHM. Erbium:YAG laser application in caries therapy. Evaluation of patient perception and acceptance. J Dent 1998;26:649–656.PubMedCrossRefGoogle Scholar
  5. Keller U, Hibst R. Experimental studies of the application of the Er:YAG laser on dental hard substances: II. Light microscopic and SEM investigations. Lasers Surg Med. 1989;9(4):345–51.PubMedCrossRefGoogle Scholar
  6. Keller U, Hibst R. Effects of Er:YAG laser in caries treatment: a clinical pilot study. Lasers Surg Med. 1997;20(1):32–8.PubMedCrossRefGoogle Scholar
  7. Kreisler MB, Haj HA, Noroozi N, Willershausen B. Efficacy of low level laser therapy in reducing post-operative pain after endodontic surgery-a randomized double blind clinical study. Int J Oral Maxillofac Surg. 2004;33(1):38–41.PubMedCrossRefGoogle Scholar
  8. Kulekcioglu S, Sivrioglu K, Ozcan O, Parlak M. Effectiveness of low-level laser therapy in temporomandibular disorder. Scand J Rheumatol. 2003;32(2):114–8.PubMedCrossRefGoogle Scholar
  9. 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):489–93.PubMedCrossRefGoogle Scholar
  10. Martens LC. Laser physics and a review of laser applications in dentistry for children. Eur Arch Paediatr Dent 2011;12:61–67.PubMedGoogle Scholar
  11. 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 Surg. 2007 Feb;25(1):8–13.PubMedCrossRefGoogle Scholar
  12. Moritz A, Beer F, Goharkhay K, Schoop U, Strassl M, Verheyen P, Walsh LJ, Wernisch J, Wintner E. (2006). Oral Laser Application. Quintessence Publishing Co. Inc. Berlin, Germany.Google Scholar
  13. Olivi G, Genovese MD. Laser restorative dentistry in children and adolescents. Eur Arch Paediatr Dent 2011;12:68–78.PubMedGoogle Scholar
  14. Pinheiro AL, Cavalcanti ET, Pinheiro TI, Alves MJ, Manzi CT. Low-level laser therapy in the management of disorders of the maxillofacial region. J Clin Laser Med Surg 1997;15:181–3.PubMedGoogle Scholar
  15. Pinheiro AL, Cavalcanti ET, Pinheiro TI, Alves MJ, Miranda ER, De Quevedo AS, Manzi CT, Vieira AL, Rolim AB. Low-level laser therapy is an important tool to treat disorders of the maxillofacial region. J Clin Laser Med Surg. 1998 Aug;16(4):223–6.PubMedGoogle Scholar
  16. 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;32(1):25–31.PubMedCrossRefGoogle Scholar
  17. Turhani D, Scheriau M, Kapral D, Benesch T, Jonke E, Bantleon HP. Pain relief by single low-level laser irradiation in orthodontic patients undergoing fixed appliance therapy. Am J Orthod Dentofacial Orthop 2006;130:371–7.PubMedCrossRefGoogle Scholar
  18. Walsh LJ. The current status of low level laser therapy in dentistry. Part 2. Hard tissue applications. Aust Dent J. 1997;42(5):302–6.PubMedCrossRefGoogle Scholar
  19. Woodruff LD, Bounkeo JM, Brannon WM, Dawes KS, Barham CD, Waddell DL, et al. The efficacy of laser therapy in wound repair: a meta-analysis of the literature. Photomed Laser Surg 2004;22:241–7.PubMedCrossRefGoogle Scholar

Copyright information

© European Archives of Paediatric Dentistry 2011

Authors and Affiliations

  • I. Tanboga
    • 1
    Email author
  • F. Eren
    • 1
  • B. Altınok
    • 1
  • S. Peker
    • 1
  • F. Ertugral
    • 1
  1. 1.Department of Pediatric DentistryMarmara University Dentistry SchoolIstanbulTurkey

Personalised recommendations