Introduction: No clinical studies have examined the effect of mineral trioxide aggregate (MTA) obturation levels on the outcome of endodontic retreatment. This retrospective study examined treatment outcomes in three cohorts that compared overfilling, flush filling, and underfilling after orthograde retreatment using MTA.
Methods: Two hundred fifty patients with 264 teeth diagnosed with previously treated root canals and apical periodontitis retreated in a private endodontic practice were included. All teeth received MTA obturation and the extent of the final filling level was measured in relation to the major apical foramen. After 6-month follow-ups, all nonhealing cases were treated surgically. After 24- to 72-month reviews, the effect of preoperative lesion size and the degree of MTA obturation level were assessed. Multiple linear regression and time-to-event analysis using Stata 17 software (StataCorp LLC, College Station, TX) were used to evaluate the data.
Results: Within the three cohorts, 99 out of 108 overfilled teeth (91.7%), 90 out of 103 flush fills (87.4%), and 10 out of 53 underfilled teeth (18.9%) healed and were successfully retreated without surgery at 48-months. When surgical outcomes were included, the combined healed proportion was 93.2%. Preoperative lesion size was found to be an important predictor for retreatment nonhealing. A 1-mm increase in lesion size at baseline resulted in an estimated 11% (95% CI 1.04, 1.18)-38% (95% CI 1.22, 1.58) increase in the risk of surgery. Compared to overfilling and flush filling, underfilling was associated with an approximately three-fold increase in requiring surgery and characterized by delayed healing.
Conclusion: MTA obturation is a viable retreatment option for teeth with nonhealing endodontic treatment. MTA overfills or flush fillings do not adversely affect healing outcomes. However, MTA underfilling increases the chances for nonhealing and surgical intervention.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.joen.2024.01.009 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Comparative Analysis of Fracture Resistance of Endodontic Sealer Types and Filling Methods.
Materials (Basel)
December 2024
Department of Advanced General Dentistry, College of Dentistry, Yonsei University, Seoul 03722, Republic of Korea.
With the advent of bioceramic sealers, sealers have become a more important filling material for endodontic treatment. When a solid sealer, rather than an elastic gutta-percha, occupies a significant portion of the root canal, it is unclear whether the tooth structure will be strengthened to withstand stress or whether the increased stiffness will transmit the load directly to the entire root, potentially causing root fracture. This study compared the fracture resistance and fracture patterns of roots filled with various root canal sealers, including bioceramic sealers, and each corresponding filling technique.
View Article and Find Full Text PDFManagement of an Open Apex Using a Platelet-Rich Fibrin Membrane as an Internal Matrix and Mineral Trioxide Aggregate as an Apical Barrier: A Case Report.
Cureus
December 2024
Department of Conservative Dentistry and Endodontics, School of Dental Science, Krishna Vishwa Vidyapeeth (Deemed To Be University), Karad, IND.
Apexification is a crucial procedure for achieving apical healing in non-vital teeth with open apices. Traditionally, calcium hydroxide has been used for this purpose, but it has significant drawbacks, including prolonged treatment duration, increased risk of root fracture, and the potential for porous barrier formation. Mineral trioxide aggregate (MTA) has emerged as a superior alternative due to its biocompatibility, faster setting time, and better sealing properties.
View Article and Find Full Text PDFIn vitro comparison of Enterococcus Faecalis survival in dentinal tubules following root canal therapy with AH plus, endoseal MTA, and cold ceramic sealers.
BMC Oral Health
December 2024
Department of Oral and Maxillofacial Radiology, School of Dentistry, Iran University of Medical Sciences, Azadi St., Jamalzadeh St., Jamshid Alley, Tehran, 1313883851, Iran.
Background: Enterococcus faecalis (E. faecalis) is the most common microorganism responsible for post-endodontic infections, which can penetrate deep into dentinal tubules. This study aimed to compare the survival of E.
View Article and Find Full Text PDFA Comparison of the Apical Sealing Efficacy Between Guttaflow Bioseal and Mineral Trioxide Aggregate as Root-End Filling Materials: An In Vitro Study.
Cureus
November 2024
Department of Endodontics, Tishreen University, Lattakia, SYR.
Aim The objective of this study is to evaluate the efficacy of Guttaflow Bioseal (Coltene/Whaledent, Altstätten, Switzerland) in achieving an apical seal when utilized as a retrograde filling material in comparison to mineral trioxide aggregate (MTA). Methods Twenty single-rooted single-canaled human teeth were randomly allocated into two equal groups according to the used retrograde filling materials: Guttaflow Bioseal in group I and MTA in group II. The crowns were sectioned, and the root canals were prepared with rotary files and obturated (single cone technique with a resin-based sealer).
View Article and Find Full Text PDFStereomicroscopic Evaluation of the Apical Sealing Ability of Different Root Canal Sealers (Endoseal, Apexit, MTA Fillapex, Ceraseal) Using Diaphanization Technique.
Int J Clin Pediatr Dent
October 2024
Department of Pedodontics and Preventive Dentistry, Institute of Dental Sciences, Bareilly, Uttar Pradesh, India.
Introduction: Obturation of the root canal is the most critical step in endodontic treatment, which aims to provide a hermetic seal and prevent regrowth and entry of bacteria into the canal. To achieve this, many sealers are used in endodontics.
Aim: To evaluate the effectiveness of the apical seal obtained by different sealers used in conjunction with the single cone obturation technique using gutta-percha under the stereomicroscope.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!