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01-09-2015 | Original Article

Low-level laser therapy as an alternative for pulpotomy in human primary teeth

Authors: Nádia Carolina Teixeira Marques, Natalino Lourenço Neto, Camila de Oliveira Rodini, Ana Paula Fernandes, Vivien Thiemy Sakai, Maria Aparecida Andrade Moreira Machado, Thais Marchini Oliveira

Published in: Lasers in Medical Science | Issue 7/2015

Abstract

This study aimed to evaluate the effects of low-level laser therapy (LLLT) on pulpal response of primary teeth. Twenty mandibular primary molars were randomly divided into the following groups: group I Buckley’s formocresol (diluted at 1:5), group II calcium hydroxide, group III LLLT + zinc oxide/eugenol, and group IV LLLT + calcium hydroxide. LLLT parameters were set at 660-nm wavelength, 10-mW power output, and 2.5 J/cm² energy density for 10 s in continuous mode (InGaAlP laser, Twin Laser®, MMOptics, Sao Carlos, Sao Paulo, Brazil). The teeth were extracted at the regular exfoliation period. The dentin-pulp complex was graded by an established histopathological score system. Statistical analysis was performed by Kruskal-Wallis and chi-square test. The histopathological assessment revealed statistically significant differences among groups (P < 0.05). The lowest degree of pulpal inflammation was present in LLLT + calcium hydroxide (P = 0.0296). Calcium hydroxide showed the highest rate of hard tissue barrier (P = 0.0033), odontoblastic layer (P = 0.0033), and dense collagen fibers (P = 0.0095). On the other hand, formocresol showed the highest incidence of internal resorption (P = 0.0142). Based on this study, low-level laser therapy preceding the use of calcium hydroxide exhibited satisfactory results on pulp tissue healing. However, further clinical studies on human teeth with long-term follow-up are needed to test the low-level laser therapy efficacy.

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Title: Low-level laser therapy as an alternative for pulpotomy in human primary teeth
Authors: Nádia Carolina Teixeira Marques
Natalino Lourenço Neto
Camila de Oliveira Rodini
Ana Paula Fernandes
Vivien Thiemy Sakai
Maria Aparecida Andrade Moreira Machado
Thais Marchini Oliveira
Publication date: 01-09-2015
Publisher: Springer London
Published in: Lasers in Medical Science / Issue 7/2015
Print ISSN: 0268-8921
Electronic ISSN: 1435-604X
DOI: https://doi.org/10.1007/s10103-014-1656-7

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Springer Medicine

Low-level laser therapy as an alternative for pulpotomy in human primary teeth

Abstract

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Abstract

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