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Intraoral versus extraoral single-session photobiomodulation therapy after lower third molar surgery: a pilot study

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Abstract

Purpose

To compare the effects of intraoral or extraoral single-session photobiomodulation therapy (PBMT) in maximum incisal opening (MIO), edema, and pain after lower impacted third molar surgery.

Study design

A randomized crossover clinical trial was performed in healthy patients with bilateral lower third molar extraction need. Randomization defined the surgery side (right or left), group [intraoral (IL) or extraoral (EL)], and treatment (actual or placebo) by using a computer program. IL actual group received GaAlAs red laser irradiations at four intraoral points. EL actual group received infrared laser at four extraoral points. For the placebo groups, the laser equipment was kept off. The washout period was 30 days. Before and after each surgery, facial point distances evaluated maximum incisal distance (MIO) and edema. A visual analogical scale assessed pain at 4, 8, 24, and 48 h after surgery.

Results

Postoperative pain levels and edema were similar between the groups. MIO was significantly higher in the actual EL at 7 days after surgery.

Conclusions

Intraoral and extraoral single sessions of PBMT after lower third molar surgery are equally able to control pain and edema. Moreover, a single session of extraoral PBMT is more efficient in improving postoperative mouth opening.

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Acknowledgments

We thank Associate Professor Ana Cecília Aranha for the technical supervision in clinical attendance, Laboratório Experimental de Laser em Odontologia (LELO)—FOUSP.

Funding

Programa Institucional de Bolsas de Iniciação Científica (PIBIC) for Science Training Program scholarship (CNPq).

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Authors and Affiliations

  1. Oral Surgery Department, School of Dentistry, University of São Paulo, Av Prof. Lineu Prestes 2227 Cidade Universitária, São Paulo, SP, 05508-000, Brazil

    Vinicius Paes de Assis Santos, Natacha Kalline de Oliveira, João Gilberto Frare & Maria Cristina Zindel Deboni

  2. Restorative Dentistry Department, School of Dentistry, University of São Paulo, Av Prof. Lineu Prestes 2227 Cidade Universitária, São Paulo, SP, 05508-000, Brazil

    Márcia Martins Marques

Authors
  1. Vinicius Paes de Assis Santos
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  2. Natacha Kalline de Oliveira
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  3. João Gilberto Frare
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  4. Márcia Martins Marques
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  5. Maria Cristina Zindel Deboni
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Corresponding author

Correspondence to Maria Cristina Zindel Deboni.

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Competing interests

The authors declare that they have no conflict of interest.

Ethical approval

Ethical Committee of Faculty of Dentistry—University of Sao Paulo protocol number 697.570 approved in June 26, 2014.

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Written patient consent has been obtained to publish clinical photographs although identity was preserved.

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de Assis Santos, V.P., de Oliveira, N.K., Frare, J.G. et al. Intraoral versus extraoral single-session photobiomodulation therapy after lower third molar surgery: a pilot study. Laser Dent Sci 3, 119–127 (2019). https://doi.org/10.1007/s41547-019-00061-y

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  • DOI: https://doi.org/10.1007/s41547-019-00061-y

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