Abstract
The purpose of this study was to evaluate the efficacy of erbium lasers for retrograde endodontic treatment, in terms of clinical outcome and therapeutic success. Apicoectomy with retrograde filling is a well-established surgical procedure to treat teeth affected by persistent periapical lesions. The apical root end is generally removed with burs, and the adjacent periapical tissue curetted, or alternatively treated with ultrasound or laser. Between 2000 and 2010, 65 apicoectomies were performed on necrotic teeth that presented apical lesions (29 men, 36 women). The lasers used in the study were the erbium:yttrium-aluminum-garnet (Er:YAG) laser, wavelength 2940 nm, and the erbium,chromium-doped:yttrium-scandium-gallium-garnet (Er,Cr:YSGG) laser, wavelength 2780 nm. Of the 65 teeth in the study, failure only occurred in 9 CASES, MANIFESTING AFTER DIFFERENT TIMES. THE REMAINING PATIENTS, 86.15%, experienced no complications, and their treatment followed a positive course. Laser-assisted surgery increases the range of therapeutic approaches in the sphere of retrograde endodontic treatment. The results of this study show that the erbium laser, used for apicoectomy, results in a high success rate with considerable benefit in terms of clinical outcome and therapeutic success.
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