Dislocation resistance of ProRoot Endo Sealer, a calcium silicate-based root canal sealer, from radicular dentine

Aim  To examine the dislocation resistance of three root canal sealers from radicular dentine with and without immersion in a simulated body fluid (SBF), using a modified push‐out test design that produced simulated canal spaces of uniform dimensions under identical cleaning and shaping conditions....

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Bibliographic Details
Published in:International endodontic journal 2009-01, Vol.42 (1), p.34-46
Main Authors: Huffman, B. P., Mai, S., Pinna, L., Weller, R. N., Primus, C. M., Gutmann, J. L., Pashley, D. H., Tay, F. R.
Format: Article
Language:English
Subjects:
Adhesiveness
Aluminum Compounds - chemistry
Apatites - chemistry
Calcium Compounds - chemistry
Calcium Phosphates - chemistry
calcium silicate-based sealer
Cuspid
Dental Bonding
Dental Pulp Cavity - ultrastructure
Dentin - ultrastructure
Dentistry
dislocation resistance
Drug Combinations
Epoxy Resins - chemistry
Fiber Optic Technology
Humans
Humidity
Immersion
in vitro bioactivity
Materials Testing
Microscopy, Electron, Scanning
Oxides - chemistry
Root Canal Filling Materials - chemistry
Root Canal Irrigants - therapeutic use
Root Canal Preparation - instrumentation
Root Canal Preparation - methods
Saliva, Artificial - chemistry
Shear Strength
Silicates - chemistry
Stress, Mechanical
Surface Properties
thin-slice push-out test
Time Factors
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Summary:Aim  To examine the dislocation resistance of three root canal sealers from radicular dentine with and without immersion in a simulated body fluid (SBF), using a modified push‐out test design that produced simulated canal spaces of uniform dimensions under identical cleaning and shaping conditions. Methodology  Sixty single‐rooted caries‐free human canine teeth were used. Standardized simulated canal spaces were created using 0.04 taper ProFile instruments along the coronal, middle and apical thirds of longitudinal tooth slabs. Following NaOCl/ethylenediamine tetra‐acetic acid cleaning, the cavities were filled with ProRoot Endo Sealer, AH Plus Jet or Pulp Canal Sealer. After setting, half of the cavities were tested with a fibre‐optic light‐illuminated push‐out testing device. The rest were immersed in SBF for 4 weeks before push‐out evaluation. Failure modes were examined with stereomicroscopy and field emission (FE)‐scanning electron microscopy. Results  Location of the sealer‐filled cavities did not affect push‐out strengths. ProRoot Endo Sealer exhibited higher push‐out strengths than the other two sealers particularly after SBF storage (P 
ISSN:0143-2885
1365-2591
DOI:10.1111/j.1365-2591.2008.01490.x