Harry Huiz Peeters1, Latief Mooduto. 1. Laser Research Center, Cihampelas 41 Bandung, West Java, 40116, Indonesia, h2huiz@cbn.net.id.
Abstract
OBJECTIVES: The purpose of the present study was to test the hypothesis that apical extrusion of the irrigant occurs during laser-driven irrigation in vivo. MATERIALS AND METHODS: Three hundred human root canals, in 181 patients, were divided into two groups: the no lesion group (n = 140) and the lesion group (n = 160). All the root canals were enlarged using a crown down technique up to size 30-80 K-files, depending on the original condition of the root canal. For the final irrigation, the teeth were irrigated with a mixture of radiopaque contrast medium and NaOCl in solution. The solution was activated for 60 s in teeth with one canal or two canals and for 120 s in teeth with three or four canals. RESULTS: Radiopaque contrast medium was absent from the periapical tissues of all samples. CONCLUSIONS: No contrast medium was observed radiographically in the periapical tissues. The hypothesis that apical extrusion of root canal irrigants occur during laser cavitation was rejected CLINICAL RELEVANCE: It appears that the power of the laser used at 1 W for 1-2 min can drive the irrigation solution to the tip of the canal without harming the apical tissues.
OBJECTIVES: The purpose of the present study was to test the hypothesis that apical extrusion of the irrigant occurs during laser-driven irrigation in vivo. MATERIALS AND METHODS: Three hundred human root canals, in 181 patients, were divided into two groups: the no lesion group (n = 140) and the lesion group (n = 160). All the root canals were enlarged using a crown down technique up to size 30-80 K-files, depending on the original condition of the root canal. For the final irrigation, the teeth were irrigated with a mixture of radiopaque contrast medium and NaOCl in solution. The solution was activated for 60 s in teeth with one canal or two canals and for 120 s in teeth with three or four canals. RESULTS: Radiopaque contrast medium was absent from the periapical tissues of all samples. CONCLUSIONS: No contrast medium was observed radiographically in the periapical tissues. The hypothesis that apical extrusion of root canal irrigants occur during laser cavitation was rejected CLINICAL RELEVANCE: It appears that the power of the laser used at 1 W for 1-2 min can drive the irrigation solution to the tip of the canal without harming the apical tissues.
Authors: Franklin R Tay; Li-Sha Gu; G John Schoeffel; Courtney Wimmer; Lisiane Susin; Kai Zhang; Senthil N Arun; Jongryul Kim; Stephen W Looney; David H Pashley Journal: J Endod Date: 2010-02-06 Impact factor: 4.171
Authors: Jelena Vidas; Damir Snjaric; Alen Braut; Zoran Carija; Romana Persic Bukmir; Roeland J G De Moor; Ivana Brekalo Prso Journal: Lasers Med Sci Date: 2019-07-18 Impact factor: 3.161