Debris extrusion from root canals during root canal shaping
Research type
Research Study
Full title
Debris Extrusion From Root Canals During Root Canal Shaping With 3 Nickel Titanium Systems
IRAS ID
230412
Contact name
Mike Horrocks
Contact email
Sponsor organisation
University Of Chester
Duration of Study in the UK
0 years, 3 months, 17 days
Research summary
The process of eliminating the causative pathogens, termed chemo mechanical preparation, has been extensively studied and researched to improve healing outcomes.
Root canal preparation involves the use of antibacterial solutions and Nickel Titanium Files to reduce the number of bacteria, pulpal tissue and dentine debris so that inflammation can be reduced and healing can be encouraged.The aim of this study is to determine if using different root canal preparation systems impacts on the amount of debris being extruded in simulated canals. This could simulate the clinical scenario and add to the knowledge base to help determine influencing factors during clinical treatment outcomes
The three Niti Nickel Titanium systems that will be used to clean and shape are Protaper Gold (Dentsply Maillefer, Ballaigues, Switzerland), Hyflex EDM (Coltene/Whaledent AG, Altstatten, Switzerland), Reciproc blue (VDW, Munich, Germany). These are newer generation files which have been developed from manipulating the alloy components to produce files with improved mechanical properties.
Clearly an inherent problem with root canal cleaning using an irrigant is the production of debris containing a mixture of pathogenic bacteria and dentine chips which is in turn extruded past the apical constriction into the periradicular tissues, impacting on healing thus leading to treatment failure.
An example of complications associated with extrusion of this material is inter - appointment flare ups and postoperative pain.
For the purpose of the study the researcher will need to collect extracted human teeth which will be used to simulate the clinical procedure of the root canal treatment.
The teeth will be collected from patients of the researcher's practice undergoing routine extractions. The participants will not have any further involvement in the research.
The study will be conducted in the dental practice of the researcher.REC name
London - City & East Research Ethics Committee
REC reference
17/LO/1631
Date of REC Opinion
28 Sep 2017
REC opinion
Further Information Favourable Opinion