Retreatability of 2 Mineral Trioxide Aggregate–based Root Canal Sealers: A Cone-beam Computed Tomography Analysis

Dalat

The Journal of Contemporary Dental Practice

2015

Aim:To evaluate the solubility of five different root canal sealers (AH Plus Jet, RealSeal SE, MTA Fillapex, Tubli-Seal, and Acroseal) in chloroform, eucalyptol and Endosolv-E solvents. Materials and methods:Ninety root canal sealer samples were prepared and then divided into three groups for immersion in a solvent for 2, 5 or 10 minutes. The mean values of the root canal sealers' dissolution in the solvents were obtained by the difference between the preimmersion original weight and the post-immersion weight on a digital analytical scale. Data were statistically analyzed by a Kruskal-Wallis test with a Bonferroni correction. Results:Chloroform was a more effective solvent than eucalyptol or Endosolv E for all root canal sealers, except for RealSeal SE, at all time points (p < 0.003). RealSeal SE was the least soluble sealer in all solvents at all time points. Conclusion:Chloroform demonstrated a superior ability over other solvents in dissolving canal sealing materials, and eucalyptol was found to be the least effective solvent in this study. Clinical significance:This study can help to the clinicians about which solvent should be preferred for solving the filling materials in retreatment cases.

Section: Discussionsupporting

confidence: 52%

Solubility Evaluation of Different Root Canal Sealing Materials

Dalat

The Journal of Contemporary Dental Practice

2015

“…However, the aim of the present study was not to evaluate the accuracy, sensitivity and specifity of the CBCT method and all samples were also evaluated using same method. Besides considering the clinical feasibility, it is obvious that CBCT is more suitable when compared to micro-CT 18) . Root canal filling as a radiopaque material may cause artefact in CBCT however the artefacts can be negligible with proper machine settings and parameters of CBCT.…”

Section: Discussionmentioning

confidence: 99%

“…CBCT is an easily applicable non-invasive clinical tool that provides threedimensional imaging and quantitative evaluation 16) . The clinical relevance of CBCT for the assessment of root canal filling removal has been shown previously 17,18) . The aim of this study was to evaluate and compare remaining root canal filling material after reinstrumentation with Twisted File (TF) Adaptive (Axis/SybronEndo, Orange, CA, USA), Reciproc (VDW, Munich, Germany), and ProTaper UR system (Dentsply Maillefer, Ballaigues, Switzerland) instruments using CBCT imaging.…”

Section: Introductionmentioning

confidence: 96%

Efficacy of Twisted File Adaptive, Reciproc and ProTaper Universal Retreatment instruments for root-canal-filling removal: A cone-beam computed tomography study

et al. 2016

The aim of this study was to evaluate the efficacy of Twisted File (TF) Adaptive, Reciproc, and ProTaper Universal Retreatment (UR) System instruments for removing root-canal-filling. Sixty single rooted teeth were decoronated, instrumented and obturated. Preoperative CBCT scans were taken and the teeth were retreated with TF Adaptive, Reciproc, ProTaper UR, or hand files (n=15). Then, the teeth were rescanned, and the percentage volume of the residual root-canal-filling material was established. The total time for retreatment was recorded, and the data was statistically analyzed. The statistical ranking of the residual filling material volume was as follows: hand file=TF Adaptive>ProTaper UR=Reciproc. The ProTaper UR and Reciproc systems required shorter periods of time for retreatment. Root canal filling was more efficiently removed by using Reciproc and ProTaper UR instruments than TF Adaptive instruments and hand files. The TF Adaptive system was advantageous over hand files with regard to operating time.

Mineral Trioxide Aggregate in Dentistry

“…Two studies have shown that complete removal of the EndoSequence sealer, Fillapex, and MTA Plus sealers is not possible [56,75]. No study has shown that retreatment will be more or less important for these sealers.…”

Section: Root Canal Sealersmentioning

confidence: 99%

Products and Distinctions

Primus

2014

IntroductionThis chapter describes the dental products that contain or are based on tri-or dicalcium silicates.Resin-based products that contain these powders are included. For simplicity, these products are denoted at MTA-type materials because they rely on the hydration reactions in Eqs. Secondary or lesser hydration reactions occur involving the minor phases, but the strength and the release of calcium hydroxide for bioactivity arise from these two reactions. The key to the bioactivity of MTA-type products is the precipitation of hydroxyapatite when the calcium hydroxide reacts with phosphate ions in body fluids, as shown in Eq. 8.3. Calcium silicate, CaSiO 3 (wollastonite), is not part of this discussion because this compound does not react with water and hydrate. However, this distinction is not always clear in the literature. Calcium silicate was used in another experimental magnesium phosphate dental product [32,79,93]. The calcium silicate was not a hydraulic phase but a phase that reacted in situ contributing to bioactivity.