Edition V03N02 | Year 2013 | Editorial Original Article | Pages 30 to 34
Objective: The aim of this study was to assess, after removal, the presence of calcium hydroxide (CH) remnants associated with different vehicles in the cervical, medial and apical thirds.
Methods: Forty-five bovine incisors were transversely sectioned at 18 mm from the apex. The canals were biomechanically prepared and received CH. The samples were divided into groups (n = 10): G1, saline solution; G2, CH (BP); G3, polyethylene glycol; G4, polyethylene glycol + CMPC; Negative control, no CH (n = 5). After 7 days, the medication was removed by means of mechanical action of files associated with saline solution irrigation, until the irrigating solution became transparent. The roots were longitudinally sectioned in half. Afterwards, they were photographed and the images were digitalized, allowing the calcium hydroxide remnants to be macroscopically quantified by the Image Tool® software.
Results: The statistic results reveal that all roots presented remnants from the medication within the canals. Saline solution presented a lower amount of remnants, however, it showed a higher concentration in the apical third.
Alves-Balvedi RP, Manna FF, Biffi JCG. Quantitative as- sessment of the presence of calcium hydroxide remnants associated with different vehicles after removal of intracanal medication. Dental Press Endod. 2013 May- Aug;3(2):30-4.