Effects of Photobiomodulation Therapy in Lateral Luxation of Anterior Permanent Teeth: A Randomized, Double-Blind Clinical Trial
Belmonte FM, Soares PC, Azevedo LH, Caldeira CL, de Freitas PM
Dental traumatology : official publication of International Association for Dental Traumatology · 1 cita
Etiquetas de revisión
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Cómo se estudió
- Diseño
- Ensayo controlado aleatorizado (indexado por PubMed)
- Estudiado en
- Personas
- Resultado principal
- Marcadores de salud y funcionamiento
Quién lo pagó
- Financiación
- Financiación no declarada
Publicación
- Publicado
- 2026-02-17 · Dent Traumatol · vol. 42 · número 5 · págs. 606–615
- Editorial
- Wiley
- Citado
- 1 cita · más que el 94% de estudios similares · 9.7× el promedio de su campo
- Impacto
- Entre el 10 % más citado de su campo
- Referencias
- 15 trabajos
- Acceso
- Acceso abierto (copia en repositorio)
- Áreas de investigación
- Dental Trauma and Treatments · Laser Applications in Dentistry and Medicine · Endodontics and Root Canal Treatments
- Palabras clave
- low-level laser therapy, lateral luxation, dental trauma, permanent anterior teeth, postoperative pain, pulp sensitivity, 660 nm red light, splinting, root resorption, tooth avulsion, cold test, laser wavelength comparison, tooth loss prevention, regenerative endodontics, periodontal regeneration
- MeSH
- incisor, humans, dentin sensitivity, tooth avulsion, pain measurement, treatment outcome, double-blind method, adult, female, male, young adult, low-level light therapy, red light, postoperative pain
5 autores
- Flavia Monari Belmonte🇧🇷 · autor de correspondenciaUniversidade de São Paulo
- Pedro Cardoso Soares🇧🇷Universidade de São Paulo
- Luciane Hiramatsu Azevedo🇧🇷Universidade de São Paulo
- Celso Luiz Caldeira🇧🇷Universidade de São Paulo
- Patrícia Moreira de Freitas🇧🇷Universidade de São Paulo
Resumen
El texto original del estudio, en el idioma en que se publicó.
Background
Among the traumatic dental injuries (TDIs), lateral luxation may present poor prognosis due to frequent root resorption and consequent tooth loss. Photobiomodulation therapy (PBMT) modulates cellular activities (proliferation, differentiation, growth factor secretion) and may improve outcomes.
Objective
This randomized, double-blind, placebo-controlled trial evaluated PBMT (660 vs. 808 nm) for post-operative pain and pulp sensitivity recovery in lateral luxation of permanent anterior teeth.
Methods
Initially, 41 patients were included, with a total of 63 teeth traumatized by lateral luxation and were allocated to G1 (n = 21): Splinting + sham PBM (placebo), G2 (n = 21): Splinting + 808 nm infrared PBM and G3 (n = 21): Splinting + 660 nm red PBM. Four weekly sessions (3 J/point, 3 points) were administered. Pain (by numeric rating scale) and pulp sensitivity (by cold test) were assessed weekly. Pain was analyzed using the Kruskal-Wallis test, followed by multiple comparisons using Dunn's method with Bonferroni correction, and pulp sensitivity by a logistic regression model (p < 0.05).
Results
Three participants (total of 5 teeth) were excluded due to loss to follow-up. Fifty-eight teeth were analyzed (G1 = 21, G2 = 17, G3 = 20). Pain: All groups showed a significant reduction in pain over time (p < 0.001). Both G2 and G3 demonstrated a significantly greater reduction in pain compared to G1 (p < 0.001 and p = 0.026, respectively). No significant difference in pain reduction was observed between G2 and G3. Pulp sensitivity: G2 showed a significant improvement over time (p < 0.001), despite starting from a more unfavorable baseline. In contrast, no significant change in pulp sensitivity was observed for G1 or G3 between the initial and final assessments.
Conclusion
Within the limitations of this clinical study, all intervention groups were effective in reducing pain in lateral luxation of permanent anterior teeth, with superior results for laser groups compared to the placebo. However, only the 808 nm laser irradiation protocol demonstrated a significant improvement in pulp sensitivity, suggesting it may offer a more complete therapeutic response.
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