Research Article
Volume 19 Issue 2 - 2020
Root Canal Dentin Preservation in Bifurcated Premolars Using Para Post and Peeso Reamer - A Conservative Approach for Post Space Preparation Using CBCT Analysis
Abdulaziz Saleh Alqahtani1*, Omar Nasser Almonabhi2 and Abdulmajeed Mohammed almutairi2
1AEGD, BDS, Advance Resto. Specialist, Security Force Hospital, Riyadh, Saudi Arabia
2BDS, GP, Security Force Hospital, Riyadh, Saudi Arabia
*Corresponding Author: Abdulaziz Saleh Alqahtani, AEGD, BDS, Advance Resto. Specialist, Security Force Hospital, Riyadh, Saudi Arabia.
Received: December 30, 2019; Published: January 20, 2020


Aim: The aim of this study was to study and analyze the effects of two commonly used drills (Para-post and Pesso reamer) in the preservation of the root canal dentin during post space preparation of bifurcated premolars and their risks using cone beam computed tomography (CBCT).

Methodology: A total of 24 extracted bifurcated premolars divided into 3 equal groups done by 3 operators having different experience. Root canal treatment were done using system rotary ProFile system and obturated with GP size 30/0.4. The palatal canal then prepared using para post #3 and peeso reamer #2. The mean of canal area at 2 mm, 4 mm and 6 mm level intracanal space pre and post-operative were obtained then analyzed using CBCT. Anova test used to compare the mean of dentin thickness within canal area among all groups. P-value in this test considered significant if > 0.05). PA radiograph at mesio-distal view were done to show any complications (deviation or perforation).

Results: There was a significant difference in mean of dentin thickness of canal area between Pesso and Para with p-value 0.04. Mean of dentin thickness using Pesso (0.8200) is higher than Para (0.7700). Peeso drill result with higher dentin removal of canal area than using Para drill but it shows a least complications since it follows the canal configuration compared to Para Post which has a high risk to cause deviation or perforation. Nine teeth had deviation and two focal perforation caused by Para post while Pesso reamer drill show only one tooth with deviation.

Conclusion: Based on the results, Peeso reamer drill has a greater dentin removal than Para Post however, it show less risks and more safe to be used in bifurcated premolars compared to Para post which is not recommended in bifurcated premolars with narrow canals due to high risks of deviation and perforation.

Keywords: Root Canal Dentin; Bifurcated Premolars; Peeso Reamer; CBCT Analysis


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Citation: Abdulaziz Saleh Alqahtani., et al. “Root Canal Dentin Preservation in Bifurcated Premolars Using Para Post and Peeso Reamer - A Conservative Approach for Post Space Preparation Using CBCT Analysis”. EC Dental Science 19.2 (2020): 01-15.

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