Student Theses, Dissertations and Capstones

Document Type

Thesis - NSU Access Only

Degree Name

Master of Science (M.S.) in Dentistry

Copyright Statement

All rights reserved. This publication is intended for use solely by faculty, students, and staff of Nova Southeastern University. No part of this publication may be reproduced, distributed, or transmitted in any form or by any means, now known or later developed, including but not limited to photocopying, recording, or other electronic or mechanical methods, without the prior written permission of the author or the publisher.

Department

College of Dental Medicine

First Advisor

Ana Karina Mascarenhas

Date of original Performance / Presentation

January 2021

Publication Date / Copyright Date

1-1-2021

Abstract

Introduction: New techniques used for root canal therapy are introduced every few years, as the industry undergoes technological advancement in all areas. As the goal of root canal therapy is to seal the root canal, these techniques are evaluated for clinical quality of fill by post-operative buccal radiographs, which can skew the true quality of the fill. The purpose of this study was to evaluate the quality of two different obturation techniques, warm vertical or a core carrier method, using both a buccal radiograph and a radiograph from the mesial view. Methods: Maxillary first premolars with two separate canals instrumented by 2nd year dental students, and obturated using either the warm vertical technique or a core carrier technique were used. Following obturation, radiographs were taken from the buccal and mesial views using a Kodak 6200 sensor. The radiographs were then graded by 3 board certified endodontists for quality of overall root fill and apical fill, from the buccal view and the mesial view. Results: There was no significant difference of quality of overall fill throughout the root canal system, nor in the apical third for the two different obturation techniques. A significant difference in quality rating was noted between the two radiographic views (p<0.05). The mesial view which gives more of a “true” sense of the root canal fill, resulted in an overall worse quality of fill then the buccal view radiograph which is the usual method used to clinically assess fill. No difference between examiners was noted. Conclusion: This study indicated no significant difference in quality of fill when inexperienced 2nd year dental students used two different methods warm vertical technique or a core carrier technique to obturate the canals. Mesial radiograph showed a worse fill then buccal, which indicates that we are over-estimating the quality of our obturations in the clinical setting.

Disciplines

Dentistry

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