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28 Sep 2022 (Vol 45 , Iss 08 )

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30 Sep 2022 (Vol 45 , Iss 07 )

Journal ID : TMJ-23-08-2022-11381
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Title : The Effect of Automated Rotational Canal Preparation System Compared to the Reciprocal System on the Volume of Coronary-Regressed Smear Layer: In Vitro Study

Abstract :

Determining the effect of the type of preparation system on the volume of coronally-regressed smear layer. The research sample consisted of 22 newly extracted teeth, single-rooted and with a single canal, their lengths have been standardized to be 16 mm from the apex, then randomly divided into 2 equal groups (11 teeth for each group) according to the preparation system adopted as follows: (Group I: Reciproc blue) (Group II: ProTaper Gold), the apex was sealed with red baseplate wax, and fixed with a mixture of acryl, sawdust and gypsum in a plastic mold until completely solidified. 1 ml of distilled water has been used for irrigation during preparation with the use of U File for Irrigation activation after each preparation and the entire product of the preparation process has been collected into the sample tubes. Spectrophotometer has been used to calculate the volume of the smear layer. Results were analyzed using Student (T) test for independent samples. The results showed that the two systems produced the same volume of smear layer during preparation. The results showed that the two systems produced the same volume of smear layer during preparation.

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