Effect of an 810 nm Diode Laser on the Healing of a Periapical Abscess

[摘要] Introduction: The golden standard of the treatment of radicular cysts is mainly root canal therapyor surgical excision with apicectomy. The root canals are usually disinfected by the mechanicaland chemical actions of instruments and chemical irrigating solutions respectively. To improvethe efficacy of the root canal disinfection process, many techniques have been used and manyresearchers are still trying to reach the quickest and most convenient way to achieve this goal. Diodelasers have shown antibacterial activity on dentinal tubules, and they can penetrate more than 1000μm into the dentin.Case Presentation: Our patient was a 25-year-old female with an infraorbital abscess caused bya non-vital maxillary canine with periapical radiolucency. After completing the conventionaltreatment, the optical fiber was inserted into the canal according to the working length previouslymeasured. An 810 nm diode laser at the output power of 4 W was used to irradiate the root canals,with a 300 μm fiber. The patient was free of pain within a few days. The lesion was resolved inradiographic follow-ups, 3 and 6 months after the root canal treatment.Conclusion: A combination of conventional root canal therapy and an 810 nm diode laser is aneffective treatment for non-vital teeth with periapical lesions.

[学科分类] 基础医学

[关键词] Diode laser;810 nm Laser;Laser-assisted root canal therapy;Periapical abscess.