E-ISSN 2548-0839
European Endodontic Journal Removal of Calcium Hydroxide Pastes Containing N-Methyl-2-Pyrrolidone, Local Anaesthesia, Glycerine, and Methylcellulose from Artificial Radicular Grooves: An In-vitro Study [Eur Endod J]
Eur Endod J. 2021; 6(3): 309-313 | DOI: 10.14744/eej.2021.35229

Removal of Calcium Hydroxide Pastes Containing N-Methyl-2-Pyrrolidone, Local Anaesthesia, Glycerine, and Methylcellulose from Artificial Radicular Grooves: An In-vitro Study

Afzal Ali1, Banu Arıcıoğlu2, Hakan Arslan3
1Department of Conservative Dentistry and Endodontics, Pacific Dental College and Hospital, Rajasthan, India
2Department of Endodontics, Faculty of Dentistry, Recep Tayyip Erdoğan University, Rize, Turkey
3Department of Endodontics, Faculty of Dentistry, Istanbul Medeniyet University, Istanbul, Turkey

Objective: To compare the removal of calcium hydroxide (CaOH) pastes containing N-Methyl-2-pyrrolidone (NMP), lidocaine, glycerine, methylcellulose, or water from artificially created grooves.
Methods: In this study, 115 human single-rooted maxillary incisors with single and straight root canals were prepared using a rotary file up to size 40/.04 and split longitudinally. A longitudinal groove was created from 2 to 5 mm from the apex and filled with CaOH combined with different vehicles. The specimens were divided among 5 experimental groups according to the vehicle as follows: distilled water, lidocaine, glycerine, methylcellulose, and NMP. The two halves were re-attached, and the canals were flushed with 10 ml of 17% EDTA for 60 seconds. The residual amount of CaOH was scored using a stereomicroscope at 8× magnification. Statistical significance was set at P<0.05.
Results: The NMP-based group exhibited significantly less residual medicament compared to the distilled water (P<0.05), while there were no statistically significant differences among the methylcellulose-, lidocaine-, and glycerine-based groups and distilled water (P>0.05).
Conclusion: The vehicle is an important factor in the successful removal of CaOH medicament from the root canals. Within the limitations of the present study, the NMP-based CaOH medicament exhibited better removal efficacy than the distilled water. However, the cleaning success of the methylcellulose-, lidocaine-, and glycerine-based groups was similar to that of distilled water. (EEJ-2021-07-132)

Keywords: Aqueous vehicle, calcium hydroxide, intracanal medicament (ICM), NMP, viscous vehicle

Afzal Ali, Banu Arıcıoğlu, Hakan Arslan. Removal of Calcium Hydroxide Pastes Containing N-Methyl-2-Pyrrolidone, Local Anaesthesia, Glycerine, and Methylcellulose from Artificial Radicular Grooves: An In-vitro Study. Eur Endod J. 2021; 6(3): 309-313

Corresponding Author: Afzal Ali
Manuscript Language: English
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