Dental and Medical Problems

Dent. Med. Probl.
Index Copernicus (ICV 2018) – 113.05
MNiSW – 20
Average rejection rate – 62.63%
ISSN 1644-387X (print)
ISSN 2300-9020 (online)
Periodicity – quarterly

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Dental and Medical Problems

2019, vol. 56, nr 2, April-June, p. 155–159

doi: 10.17219/dmp/103732

Publication type: original article

Language: English

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Creative Commons BY-NC-ND 3.0 Open Access

Comparative evaluation of the efficacy of three methods of delivering calcium hydroxide into the root canal

Ocena porównawcza skuteczności trzech metod wprowadzania wodorotlenku wapnia do kanału korzeniowego

Roohollah Sharifi1,A,C,D,E,F, Ehsan Bahrampour2,A,B,C, Pourya Janfroozzade3,A,B, Mohsen Safaei4,B,C,D,E,F, Hamid Reza Mozaffari5,A,D,E,F, Elham Soltanimehr6,C,D,E,F, Hedaiat Moradpoor7,A,E,F, Mohammad Moslem Imani8,C,D,E,F

1 Department of Endodontics, School of Dentistry, Kermanshah University of Medical Sciences, Iran

2 Department of Oral and Maxillofacial Radiology, School of Dentistry, Kermanshah University of Medical Sciences, Iran

3 Student Research Committee, School of Dentistry, Kermanshah University of Medical Sciences, Iran

4 Oral and Dental Sciences Research Laboratory, School of Dentistry, Kermanshah University of Medical Sciences, Iran

5 Department of Oral and Maxillofacial Medicine, School of Dentistry, Kermanshah University of Medical Sciences, Iran

6 Department of Pediatric Dentistry, School of Dentistry, Kermanshah University of Medical Sciences, Iran

7 Department of Prosthodontics, School of Dentistry, Kermanshah University of Medical Sciences, Iran

8 Department of Orthodontics, School of Dentistry, Kermanshah University of Medical Sciences, Iran

Abstract

Background. Calcium hydroxide, due to its favorable properties, such as an antimicrobial effect as well as its ability to dissolve necrotic tissues, inhibit tooth resorption and stimulate the formation of a hard tissue barrier, is widely used in root canal treatment.
Objectives. The objective of this study was to compare the efficacy of 3 methods of delivery of calcium hydroxide into the canals.
Material and Methods. This in vitro experimental study was performed on acrylic resin blocks with simulated curved canals (curvature of 24° and 44°). Calcium hydroxide was delivered into the canals with 3 different instruments : a hand file, a Lentulo and a rotary file. The data was analyzed using the three-way analysis of variance (ANOVA) and Tukey’s test.
Results. The density of calcium hydroxide was significantly different among the 3 groups (p < 0.001). The manual delivery technique resulted in the lowest and using a rotary file in the highest density of calcium hydroxide (p < 0.001). The mean density of calcium hydroxide was significantly higher in the canals with curvature of 24°, irrespective of the delivery method (p < 0.001). The lowest mean density of calcium hydroxide was noted at 1 mm and 3 mm from the apex, whereas the highest mean density was noted at 11 mm from the apex, irrespective of delivery method (p < 0.001).
Conclusion. A rotary file seems to be the most efficient instrument for delivering calcium hydroxide into the canals, especially into the apical region of canals with greater curvature.

Key words

calcium hydroxide, hand file, rotary file

Słowa kluczowe

wodotlenek wapnia, pilnik ręczny, pilnik obrotowy

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