Abstract
Seventy single-rooted human mandibular premolar teeth were used for this study. The samples were prepared with the ProTaper rotary system up to F4 and filled with calcium hydroxide. One week later, Calcium hydroxide was removed from the root canals with the several irrigation methods as follows: Vibringe (Group 1), EndoVac (Group 2), conventional needle irrigations (Group 3), passive ultrasonic (Group 4). The roots were split longitudinally and evaluated at magnifications ranging from x50 to x1000. Statistical Data were analyzed using Kruskal-Wallis and Mann-Whitney U tests.
Highlights
The main purpose of root canal treatment is to eliminate the existing infection in the infected root canals and to prevent subsequent infections [1]
None of the methods used in this study were able to completely remove calcium hydroxide from root canal walls
When the root canal walls were taken into consideration, there was no significant difference between Group 1, Group 2 and Group 4 (p > 0.05), but these three techniques removed more Calcium hydroxide than Group 3
Summary
The main purpose of root canal treatment is to eliminate the existing infection in the infected root canals and to prevent subsequent infections [1]. In cases which root canal cleaning is not fully performed and additional disinfection applications are required, the use of canal medicaments in order to overcome this condition has been proposed [2]. Remaining CH residues may decrease the bonding ability of root fillers to dentin and may decrease the physical properties. CH residues need to be removed as much as possible before the root canals are permanently filled since it affect the root fillers negatively [4]. For this purpose, different irrigation solutions and many mechanical techniques have been developed
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