A Comparative Evaluation of Intracanal Calcium Hydroxide Removal with Hand File, Rotary File, and Passive Ultrasonic Irrigation: An Study

Overview

Journal J Pharm Bioallied Sci

Specialty Pharmacology

Date 2019 Jun 15

PMID 31198384

Citations 4

Authors

Sowmiya Tamil

Sivakumar A Andamuthu

Ravi Vaiyapuri

A S Prasad

Sampathkumar Sivakumar Jambai

Mathimaraiselvan Chittrarasu

Affiliations

Soon will be listed here.

Abstract

Aim: The aim of this study was to compare the effectiveness of hand file (K-file), rotary file (HERO shaper), and passive ultrasonic irrigation (PUI; U-file) in removing Ca(OH) from the root canal.

Materials And Methods: Thirty single-rooted teeth were collected and decoronated to standardize the length to 14 mm. Cleaning and shaping were conducted using HERO shaper rotary files (up to no. 25, 4% taper). Ca(OH) powder was mixed with normal saline and filled into the canals using lentulo spiral and the orifice was sealed with zinc oxide eugenol. After 7 days of incubation, samples were divided into three groups of 10 samples each: Group I (hand files)-no. 20 K-file; Group II (rotary files)-no. 25, 4% HERO shaper; Group III (PUI)-no. 20 U-file. Ca(OH) paste was removed using 2 mL of 3% sodium hypochlorite solution followed by 1-minute activation of the respective file system. All the samples were finally irrigated with 17% ethylenediaminetetraacetic acid and flushed with distilled water.

Results: Ultrasonic group was more effective in removing Ca(OH) followed by HERO shaper and hand file.

Conclusion: It was concluded that PUI had the highest ability to remove Ca(OH) from the root canal walls.

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References

Calt S, Serper A . Dentinal tubule penetration of root canal sealers after root canal dressing with calcium hydroxide. J Endod. 1999; 25(6):431-3. DOI: 10.1016/S0099-2399(99)80273-8. View

Siqueira Jr J, Lopes H . Mechanisms of antimicrobial activity of calcium hydroxide: a critical review. Int Endod J. 1999; 32(5):361-9. DOI: 10.1046/j.1365-2591.1999.00275.x. View

Gutarts R, Nusstein J, Reader A, Beck M . In vivo debridement efficacy of ultrasonic irrigation following hand-rotary instrumentation in human mandibular molars. J Endod. 2005; 31(3):166-70. DOI: 10.1097/01.don.0000137651.01496.48. View

van der Sluis L, Wu M, Wesselink P . A comparison between a smooth wire and a K-file in removing artificially placed dentine debris from root canals in resin blocks during ultrasonic irrigation. Int Endod J. 2005; 38(9):593-6. DOI: 10.1111/j.1365-2591.2005.00921.x. View

Schafer E, Erler M, Dammaschke T . Comparative study on the shaping ability and cleaning efficiency of rotary Mtwo instruments. Part 1. Shaping ability in simulated curved canals. Int Endod J. 2006; 39(3):196-202. DOI: 10.1111/j.1365-2591.2006.01074.x. View

Kenee D, Allemang J, Johnson J, Hellstein J, Nichol B . A quantitative assessment of efficacy of various calcium hydroxide removal techniques. J Endod. 2006; 32(6):563-5. DOI: 10.1016/j.joen.2005.10.065. View

Bueno C, Delboni M, de Araujo R, Carrara H, Cunha R . Effectiveness of rotary and hand files in gutta-percha and sealer removal using chloroform or chlorhexidine gel. Braz Dent J. 2006; 17(2):139-43. DOI: 10.1590/s0103-64402006000200011. View

van der Sluis L, Wu M, Wesselink P . The evaluation of removal of calcium hydroxide paste from an artificial standardized groove in the apical root canal using different irrigation methodologies. Int Endod J. 2007; 40(1):52-7. DOI: 10.1111/j.1365-2591.2006.01182.x. View

Barbizam J, Trope M, Teixeira E, Tanomaru-Filho M, Teixeira F . Effect of calcium hydroxide intracanal dressing on the bond strength of a resin-based endodontic sealer. Braz Dent J. 2008; 19(3):224-7. DOI: 10.1590/s0103-64402008000300009. View

10.

Balvedi R, Versiani M, Manna F, Biffi J . A comparison of two techniques for the removal of calcium hydroxide from root canals. Int Endod J. 2010; 43(9):763-8. DOI: 10.1111/j.1365-2591.2010.01718.x. View

11.

Mohammadi Z, Dummer P . Properties and applications of calcium hydroxide in endodontics and dental traumatology. Int Endod J. 2011; 44(8):697-730. DOI: 10.1111/j.1365-2591.2011.01886.x. View

12.

Kuga M, de Campos E, de Faria-Junior N, So M, Shinohara A . Efficacy of NiTi rotary instruments in removing calcium hydroxide dressing residues from root canal walls. Braz Oral Res. 2012; 26(1):19-23. DOI: 10.1590/s1806-83242012000100004. View

13.

Dadresanfar B, Mehrvarzfar P, Saghiri M, Ghafari S, Khalilak Z, Vatanpour M . Efficacy of two rotary systems in removing gutta-percha and sealer from the root canal walls. Iran Endod J. 2012; 6(2):69-73. PMC: 3487511. View

14.

Turker S, Kocak M, Kocak S, Saglam B . Comparison of calcium hydroxide removal by self-adjusting file, EndoVac, and CanalBrush agitation techniques: An in vitro study. J Conserv Dent. 2013; 16(5):439-43. PMC: 3778627. DOI: 10.4103/0972-0707.117523. View

15.

George S, Anandaraj S, S Issac J, John S, Harris A . Rotary endodontics in primary teeth - A review. Saudi Dent J. 2016; 28(1):12-7. PMC: 4688451. DOI: 10.1016/j.sdentj.2015.08.004. View