Comparative Evaluation of Instrumentation Timing and Cleaning Efficacy in Extracted Primary Molars Using Manual and NiTi Rotary Technique - Invitro Study

Overview

Journal J Oral Biol Craniofac Res

Publisher Elsevier

Date 2019 Apr 10

PMID 30963021

Citations 6

Authors

Rachita Mehlawat

Rishabh Kapoor

Kapil Gandhi

Dipanshu Kumar

Ritika Malhotra

Shilpa Ahuja

Affiliations

Soon will be listed here.

Abstract

Aim: To compare the timing of instrumentation and cleaning efficacy between manual K files and NiTi rotary files in extracted primary molars.

Study Design: in-vitro study was conducted in 90 root canals of extracted primary molars which were subdivided in three groups viz. Control (No instrumentation), Manual (K files), Rotary (ProFiles) with 30 canals in each group. Mesiobuccal (MB) and Mesiolingual (ML) canals of mandibular molars, and MB and Distobuccal (DB) canals of maxillary molars were included in the test group whereas Distal canals in mandibular molars and Palatal canals in maxillary molars were included in the control group.

Method: Teeth were mounted and canals were injected with India ink to stain the canal walls. Canal preparation was done as per the group. After instrumentation, teeth were demounted, decalcified and cleared to make them transparent for scoring according to the extent of removal of India ink. Timing of instrumentation and cleaning efficacy of canals in coronal, middle and apical thirds were assessed in each sample.

Results: Mean timing of instrumentation in rotary group was 3.54 ± 1.14 min and 4.32 ± 1.04 min in manual group. Mean cleaning efficacy scores in manual and rotary groups were 2.03 and 1.66 in coronal third, 1.08 and 1.18 in middle third and 0.67 and 1.08 in apical third respectively. Inter-group comparisons showed no statistically significant difference in cleaning efficacy among test groups in all thirds of root canals.

Conclusion: NiTi rotary technique has comparable cleaning efficacy, with significantly less timing of instrumentation compared to manual K-files.

Citing Articles

To Compare and Evaluate Rotary and Manual Techniques in Biomechanical Preparation of Primary Molars to Know Their Effects in Terms of Cleaning and Shaping Efficacy.

Moudgalya M, Tyagi P, Tiwari S, Tiwari T, Umarekar P, Shrivastava S Int J Clin Pediatr Dent. 2024; 17(8):864-870.

PMID: 39372346 PMC: 11451875. DOI: 10.5005/jp-journals-10005-2949.

Comparative evaluation of volumetric changes following rotary and hand files' canal preparation of primary maxillary canine: an in vitro nano-CT analysis.

Balaji S, Jeevanandan G, Ravindran V, Assiry A, Vishwanathaiah S, Maganur P Eur Arch Paediatr Dent. 2024; 25(2):227-235.

PMID: 38472709 DOI: 10.1007/s40368-024-00877-8.

Rotary versus Manual Instrumentation for Root Canal Preparation in Primary Teeth: A Systematic Review and Meta-Analysis of Clinical Trials.

Faghihian R, Amini K, Tahririan D Contemp Clin Dent. 2022; 13(3):197-204.

PMID: 36213852 PMC: 9533390. DOI: 10.4103/ccd.ccd_77_20.

Modified Conventional Root Canal Shaping Technique in Primary Teeth: An Study.

Reddy E, Raju S, Sandipamu T, Kiranmayi M, Mudusu S, Saraswati S Int J Clin Pediatr Dent. 2022; 15(Suppl 1):S8-S11.

PMID: 35645492 PMC: 9108825. DOI: 10.5005/jp-journals-10005-2121.

Cone-beam computed tomography analysis of primary root canals transportation and dentin loss after instrumentation with two-pediatric rotary files.

Abd El Fatah Y, Khattab N, Gomaa Y, Elheeny A BMC Oral Health. 2022; 22(1):214.

PMID: 35641977 PMC: 9153195. DOI: 10.1186/s12903-022-02245-8.

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