Influence of Cavity Design on Calcium Hydroxide Removal from Root Canal Irregularities
Abstract
Objective: Conservative endodontic cavity (CEC) design has recently developed to maintain the stability of tooth and provided an alternative to traditional endodontic cavity (TEC) design. The purpose of this study was to assess the influence of cavity design on calcium hydroxide (Ca(OH)2) removal from artificial grooves in the coronal and apical parts of root canals.
Materials and Methods: Fourty extracted human mandibular premolars with single canals were randomly assigned to CEC or TEC groups (n=20). Following cavity preparation, the root canals were instrumented and then, each tooth was sectioned longitudinally. Two standardized grooves were prepared in the coronal and apical parts of 1 root half. Ca(OH)2 was placed into the grooves and the root halves reassembled. After 1 week, each root canal was enlarged to a final apical size of 40 and irrigation was performed with the sonic activation of 2.5% sodium hypochlorite and 17% ethylenediaminetetraacetic acid solutions. The remaining Ca(OH)2 in the grooves was evaluated using a stereomicroscope and the images were scored by 2 examiners. Data were analyzed using the Mann-Whitney U and Wilcoxon tests. Ca(OH)2 remnants were found in both groups.
Results: There was no significant difference between the CEC and TEC groups in terms of Ca(OH)2 removal efficacy (p>0.05). The grooves in the coronal and apical parts of the roots presented similar amount of Ca(OH)2 remnantsin both groups (p>0.05).
Conclusion: The cavity design had no effect on the removal of Ca(OH)2 from root canal irregularities.
Keywords
References
- 1. Vera J, Siqueira JF, Jr., Ricucci D, Loghin S, Fernandez N, Flores B, Cruz AG. One- versus two-visit endodontic treatment of teeth with apical periodontitis: a histobacteriologic study. J Endod 2012;38:1040-1052.
- 2. Athanassiadis B, Abbott PV, Walsh LJ. The use of calcium hydroxide, antibiotics and biocides as antimicrobial medicaments in endodontics. Aust Dent J 2007;52:S64-82.
- 3. Kim SK, Kim YO. Influence of calcium hydroxide intracanal medication on apical seal. Int Endod J 2002;35:623-628.
- 4. Uzunoglu-Ozyurek E, Erdogan O, Aktemur Turker S. Effect of calcium hydroxide dressing on the dentinal tubule penetration of 2 different root canal sealers: a confocal laser scanning microscopic study. J Endod 2018;44:1018-1023.
- 5. Margelos J, Eliades G, Verdelis C, Palaghias G. Interaction of calcium hydroxide with zinc oxide-eugenol type sealers: a potential clinical problem. J Endod 1997;23:43-48.
- 6. Hosoya N, Kurayama H, Iino F, Arai T. Effects of calcium hydroxide on physical and sealing properties of canal sealers. Int Endod J 2004;37:178-184.
- 7. Neelakantan P, Khan K, Hei Ng GP, Yip CY, Zhang C, Pan Cheung GS. Does the orifice-directed dentin conservation access design debride pulp chamber and mesial root canal systems of mandibular molars similar to a traditional access design? J Endod 2018;44:274-279.
- 8. Tang W, Wu Y, Smales RJ. Identifying and reducing risks for potential fractures in endodontically treated teeth. J Endod 2010;36:609-617.
Details
Primary Language
English
Subjects
Health Care Administration
Journal Section
Research Article
Authors
Publication Date
December 29, 2019
Submission Date
August 16, 2019
Acceptance Date
November 4, 2019
Published in Issue
Year 2019 Volume: 22 Number: 4