title: Effect of Er:YAG and Nd:YAG lasers on the mineral content of root canal dentin.
abstract: The aim of this study was to assess the effect of two different laser systems on the mineral content of root canal dentin. Thirty-six single canal-extracted mandibular premolars were used in this study. The teeth were randomly divided into two groups of 18 teeth each and prepared with a master apical file #50. Dentin chips were obtained by Gates-Glidden burs and saved in Eppendorf tubes to serve as a control. Then, root canals were treated with a erbium:yttrium-aluminum-garnet or neodymium:yttrium-aluminum-garnet laser. Dentin chips were again obtained using Gates-Glidden. The levels of calcium (Ca), phosphorus (P), magnesium (Mg), sodium (Na), and potassium (K) in each specimen were measured by inductively coupled plasma-atomic emission spectrometry. Data were statistically analyzed by a Mann-Whitney U test. The changes in Ca, P, Mg, Ca, and K levels and the Ca/P ratio after laser irradiations were minimal and statistically not significant (p > 0.05). It was determined that the laser systems used in this study did not affect the mineral content of root canal dentin.
authors.affiliation: Department of Endodontics, Faculty of Dentistry, Erciyes University, Melikgazi, 38030, Kayseri, Turkey, topcuogluhs@hotmail.com.
authors.forename: Hüseyin Sinan
authors.initials: HS
authors.lastname: Topçuoğlu
authors.forename: Mustafa
authors.initials: M
authors.lastname: Köseoğlu
mesh_terms: D000328:Adult; D001641:Bicuspid / Q000601:surgery*; D002118:Calcium / Q000032:analysis; D003786:Dental Pulp Cavity; D003804:Dentin / Q000737:chemistry*; D006801:Humans; D053844:Lasers, Solid-State; D008274:Magnesium / Q000032:analysis; D008903:Minerals / Q000032:analysis; D010758:Phosphorus / Q000032:analysis; D011188:Potassium / Q000032:analysis; D012390:Root Canal Therapy / Q000379:methods*; D012964:Sodium / Q000032:analysis; D014070:Tooth / Q000737:chemistry; D014092:Tooth Root
chemical_list: D008903:Minerals; D010758:Phosphorus; D012964:Sodium; D008274:Magnesium; D011188:Potassium; D002118:Calcium
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