Surface Integrity of Orthograde MTA Obturation Following Targeted Endodontic Microsurgery
Abstract
Introduction: Guided endodontic microsurgery may be performed utilizing trephine burs for apical root resection. The purpose of this project was to determine if the use of trephine burs in Targeted Endodontic Microsurgery (TEMs) disrupts the MTA fill within the canal. Methods: 20 maxillary anterior roots were cleaned, shaped, and obturated with MTA. Each root was secured in a custom surgical guide using polyvinylsiloxane material and fastened to a benchtop vice. With continuous water irrigation, roots were resected with either guided trephine burs or multipurpose burs. Resected root ends were analyzed using a dental operating microscope and light microscopy with various fluorescent filters and magnifications up to 40x. Results: No groups had any detectable defects that could be identified by light microscopy analysis. No significant differences between the multipurpose group and the trephine group were observed. Conclusion: Analysis of the samples supports the use of trephine burs in guided apical surgery when the root has previously been filled with MTA. No difference could be observed between the groups in regards to disrupting the MTA fill within the canal.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 30, 2020
- Accession Number
- AD1182868
Entities
People
- Jason M. Umbach
- Joseph M. Dutner
- Joshua Jones
- Matthew B. Phillips
- Scott W. Otterson
Organizations
- Uniformed Services University of the Health Sciences