Chronic pain relief after the exposure of nitrous oxide during dental treatment: longitudinal retrospective study

Arquivos de Neuro-Psiquiatria

Francisco Moreira Mattos Júnior¹  Rafael Villanova Mattos¹  Manoel Jacobsen Teixeira¹  Silvia Regina Dowgan Tesseroli De Siqueira¹  Jose Tadeu Tesseroli De Siqueira¹ 

关键词: chronic pain;    nitrous oxide;    dental treatment;    pain relief;    dor crônica;    óxido nitroso;    tratamento odontológico;    alívio da dor;   

DOI  :  10.1590/0004-282X20150061

来源: SciELO

【 摘 要 】

The objective was to investigate the effect of nitrous/oxygen in chronic pain. Seventy-seven chronic pain patients referred to dental treatment with conscious sedation with nitrous oxide/oxygen had their records included in this research. Data were collected regarding the location and intensity of pain by the visual analogue scale before and after the treatment. Statistical analysis was performed comparing pre- and post-treatment findings. It was observed a remarkable decrease in the prevalence of pain in this sample (only 18 patients still had chronic pain, p < 0.001) and in its intensity (p < 0.001). Patients that needed fewer sessions received higher proportions of nitrous oxide/oxygen. Nitrous oxide may be a tool to be used in the treatment of chronic pain, and future prospective studies are necessary to understand the underlying mechanisms and the effect of nitrous oxide/oxygen in patients according to the pain diagnosis and other characteristics.

【 授权许可】

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