• Logo
  • SBMUJournals

Antibacterial Effect of Diode Laser in Pulpectomy of Primary Teeth

Zahra Bahrololoomi, Reza Fekrazad, Shiva Zamaninejad
615

Views

PDF

Abstract

Introduction: Laser irradiation has been suggested as an adjunct to traditional methods of canal preparation but few studies are available on the antibacterial effect of diode laser in pulpectomy of primary teeth. The purpose of the present study is to investigate the antibacterial effect of diode laser in pulpectomy of primary teeth, in addition to define the optimal and harmless diode lasing conditions in the root canal.
Methods: A total of 125 single rooted primary teeth were selected. After traditional canal cleaning, they were divided in 2 groups. Sixty-five specimens after culturing of Enterococcus faecalis into the canals, were divided in 3 groups: (1) traditional canal cleaning with 0.5% NaOCl irrigation, (2) method of group 1+ 1.5 W diode laser (980 nm, pulse), (3) without treatment (5 specimens). Then the specimens were cultured and after colony counting under light microscope, were statistically analyzed by Kruskal-Wallis and Mann-Whitney tests. For 60 specimens, temperature rise of apical and cervical parts of the external root surface were measured using 2 thermocouple type K, when radiating a 1.5 W diode laser into the canal.
Results: In the first experiment, the diode laser group showed tmost reduction in bacterial count. And in the second experiment, the mean temperature rise of external root surface was less than the threshold of periodontal ligament (PDL) damage.
Conclusion: Diode laser with a power output of 1.5 W, is effective in reduction of E. faecalis bacterial count without damaging periodontal structures.

Keywords

Diode laser; Pulpectomy; Primary teeth

References

Moskovitz M, Sammara E, Holan G. Success rate of root canal treatment in primary molars. J Dent. 2005;33(1):41- 47. doi:10.1016/j.jdent.2004.07.009

Ramar K, Mungara J. Clinical and radiographic evaluation of pulpectomies using three root canal filling materials: an in-vivo study. J Indian Soc Pedod Prev Dent. 2010;28(1):25- 29. doi:10.4103/0970-4388.60481

Dean JA, Avery DR, McDonald RE. McDonald and Avery’s dentistry for the child and adolescent. In: McDonald RE, Avery DR, Dean JA, eds. Treatment of deep caries, vital pulp exposure and pulpless teeth. 9th ed. St Louis, Mo: Mosby Elsevier Inc; 2011: 2011:354.

Dickers B, Lamard L, Peremans A, et al. Temperature rise during photo-activated disinfection of root canals. Lasers Med Sci. 2009;24(1):81-85. doi:10.1007/s10103-007-0526-y

Kuvvetli SS, Sandalli N, Topcuoglu N, Kulekci G. Antibacterial efficacy of diode and Er:YAG laser irradiation in experimentally contaminated primary molar root canals. J Clin Pediatr Dent. 2009;34(1):43-48.

Schoop U, Kluger W, Moritz A, Nedjelik N, Georgopoulos A, Sperr W. Bactericidal effect of different laser systems in the deep layers of dentin. Lasers Surg Med. 2004;35(2):111- 116. doi:10.1002/lsm.20026

Nammour S, Kowaly K, Powell GL, Van Reck J, Rocca JP. External temperature during KTP-Nd:YAG laser irradiation in root canals: an in vitro study. Lasers Med Sci. 2004;19(1):27-32. doi:10.1007/s10103-004-0303-0

Machida T, Wilder-Smith P, Arrastia AM, Liaw LH, Berns MW. Root canal preparation using the second harmonic KTP:YAG laser: a thermographic and scanning electron microscopic study. J Endod. 1995;21(2):88-91. doi:10.1016/ s0099-2399(06)81102-7

Sauk JJ, Norris K, Foster R, Moehring J, Somerman MJ. Expression of heat stress proteins by human periodontal ligament cells. J Oral Pathol. 1988;17(9-10):496-499.

Anic I, Dzubur A, Vidovic D, Tudja M. Temperature and surface changes of dentine and cementum induced by CO2 laser exposure. Int Endod J. 1993;26(5):284-293.

Preethee T, Kandaswamy D, Arathi G, Hannah R. Bactericidal effect of the 908 nm diode laser on Enterococcus faecalis in infected root canals. J Conserv Dent. 2012;15(1):46-50. doi:10.4103/0972-0707.92606

Asnaashari M, Safavi N. Disinfection of Contaminated Canals by Different Laser Wavelengths, while Performing Root Canal Therapy. J Lasers Med Sci. 2013;4(1):8-16.

Moritz A, Gutknecht N, Goharkhay K, Schoop U, Wernisch J, Sperr W. In vitro irradiation of infected root canals with a diode laser: results of microbiologic, infrared spectrometric, and stain penetration examinations. Quintessence Int. 1997;28(3):205-209.

Gutknecht N, van Gogswaardt D, Conrads G, Apel C, Schubert C, Lampert F. Diode laser radiation and its bactericidal effect in root canal wall dentin. J Clin Laser Med Surg. 2000;18(2):57-60. doi:10.1089/clm.2000.18.57

Gutknecht N, Franzen R, Meister J, Vanweersch L, Mir M. Temperature evolution on human teeth root surface after diode laser assisted endodontic treatment. Lasers Med Sci. 2005;20(2):99-103. doi:10.1007/s10103-005-0347-9




DOI: https://doi.org/10.22037/jlms.v8i4.14104