scholarly journals Particle size of two endodontic biomaterials and Portland cement

2011 ◽  
Vol 1 (3) ◽  
pp. 083-088 ◽  
Keyword(s):  
Particle Size ◽  
Portland Cement ◽  
Mineral Trioxide Aggregate ◽  
Calculated Data ◽  
Test Material ◽  
Chi Square ◽  
Cem Cement ◽  
Particle Size Analyzer ◽  
Significant Difference ◽  
White Portland Cement

We aimed to analyze particle size of a new endodontic biomaterial [calcium enriched mixture (CEM) cement], white mineral trioxide aggregate (WMTA), and white Portland cement (WPC). The analyses were performed twice. For each analysis, 0.05 mg of test material was experimented using particle size analyzer model HELOS and disperser CUVETTE. Distribution of particles in different ranges in addition to cumulative percentage and the mean of particle size were calculated. Data were analyzed using oneway ANOVA, Tukey and Chi-square tests. No significant differences were observed between the cumulative percentages of particle size in test materials. However, means of particle size were significantly different between WPC and WMTA (P<0.001). Among different investigated ranges of particle size distribution, the range of ≤30μm showed significant difference between three tested materials (P<0.05). The largest distribution of smallest range of particles was related to CEM cement. The sealing ability and satisfying physical properties of this novel biomaterial are due to a high percentage of small partcles in CEM cement.

scholarly journals Healing of root perforations treated with Mineral Trioxide Aggregate (MTA) and Portland cement

2006 ◽  
Vol 14 (5) ◽  
pp. 305-311 ◽  
Author(s):  
Norberto Juárez Broon ◽  
Clovis Monteiro Bramante ◽  
Gerson Francisco de Assis ◽  
Eduardo Antunes Bortoluzzi ◽  
Norberti Bernardineli ◽  
...  
Keyword(s):  
Portland Cement ◽  
Saline Solution ◽  
Mineral Trioxide Aggregate ◽  
Mineralized Tissue ◽  
Low Speed ◽  
Complete Closure ◽  
Microscopic Evaluation ◽  
Significant Difference ◽  
White Portland Cement

Fourteen root perforations were performed for microscopic evaluation of the repair of interradicular tissue in dogs' teeth. These perforations were accomplished at low-speed with a STP 58 bur at the cervical third of the mesial root toward the furcation under irrigation with saline solution, followed by immediate sealing with ProRoot MTA, MTA-Angelus and white Portland cement. The dogs were killed after 90 days, revealing good results. The Kruskal-Wallis test did not demonstrate any statistically significant difference. It was concluded that the three materials showed good sealing in mineralized tissue, with complete closure, and they were free of inflammation in most teeth.

scholarly journals Healing Process Following Application of Set or Fresh Mineral Trioxide Aggregate as a Root-End Filling Material

2011 ◽  
Vol 05 (01) ◽  
pp. 019-023 ◽  
Author(s):  
Mehdi Habibi ◽  
Jamileh Ghoddusi ◽  
Ataollah Habibi ◽  
Nooshin Mohtasham
Keyword(s):  
Healing Process ◽  
Mineral Trioxide Aggregate ◽  
Histological Evaluation ◽  
Filling Material ◽  
Chi Square ◽  
Unsuccessful Attempt ◽  
Gutta Percha ◽  
Significant Difference ◽  
Chronic Abscess ◽  
The Difference

ABSTRACTObjectives: An unsuccessful attempt to reach the apical area or to place the retrograde material is a major difficulty in periradicular surgery. The aim of this study was to compare the histological evaluation of the healing process following an orthograde versus a retrograde application of mineral trioxide aggregate (MTA) as a root-end filling material during apical surgery on cats’ teeth in order to find out whether orthograde placement of MTA before surgery can be used instead of retrograde placement during surgery. Methods: In this experimental study, 24 canine teeth in 12 mature and healthy cats were filled with either MTA or gutta-percha in an orthograde manner. Two weeks later, the teeth with MTA were surgically exposed and resected to the set-MTA within the canals. The teeth previously filled by gutta-percha were also surgically exposed, and retrograde cavities were prepared at the root ends and filled with fresh-MTA. After 8 weeks, the animals were euthanized by vital perfusion. Six-micron histological slices were prepared from samples, stained by Hematoxylin & Eosin, and histologically studied by means of a light microscope. The collected data was analyzed by the Chi-square and the T-test. Results: One of the samples in the fresh-MTA group was omitted during processing because of inappropriate sectioning. In the set-MTA group, 5 out of 12 showed chronic abscess, while in the fresh-MTA group, 2 out of 11 were discovered to have chronic abscess; however, no significant difference was observed (P>.05). Hard tissue healing (cementum, bone, cementum + bone formation) in the set-MTA and fresh-MTA groups were 7 out of 12 and 9 out of 11, respectively. While healing seemed more likely to occur in the fresh-MTA group, the difference was statistically insignificant (P>.05). The magnitude of bone, cementum, or bone and cementum formation showed slight differences between the two groups; however, the figures failed to show any marked differences (P>.05). Conclusions: Orthograde placement of MTA could be used as an obturation material before surgery. In this way, after root-end resection, there would be no need for root-end preparation and filling procedures. (Eur J Dent 2011;5:19-23)

The Use of a Setting Accelerator and Its Effect on pH and Calcium Ion Release of Mineral Trioxide Aggregate and White Portland Cement

2006 ◽  
Vol 32 (12) ◽  
pp. 1194-1197 ◽  
Author(s):  
E ANTUNESBORTOLUZZI ◽  
N JUAREZBROON ◽  
M ANTONIOHUNGARODUARTE ◽  
A DEOLIVEIRADEMARCHI ◽  
C MONTEIROBRAMANTE
Keyword(s):  
Portland Cement ◽  
Calcium Ion ◽  
Mineral Trioxide Aggregate ◽  
Ion Release ◽  
White Portland Cement

scholarly journals Comparative Evaluation of Push-out Bond Strength of ProRoot MTA, Bioaggregate and Biodentine

2014 ◽  
Vol 15 (3) ◽  
pp. 336-340 ◽  
Author(s):  
Sara A Alsubait ◽  
Qamar Hashem ◽  
Njood AlHargan ◽  
Khawlah AlMohimeed ◽  
Ahmed Alkahtani
Keyword(s):  
Bond Strength ◽  
Comparative Evaluation ◽  
Test Material ◽  
Cohesive Failure ◽  
Chi Square ◽  
Human Teeth ◽  
Significant Difference ◽  
The Mean ◽  
Type Of Failure ◽  
Push Out

ABSTRACT Objective To evaluate the push-out bond strength of Biodentine (BD) in comparison with two available calcium silicate based materials, bioaggregate (BA) and ProRoot MTA (WMTA). Materials and methods One hundred and twenty-three root dentin slices of freshly extracted single rooted human teeth were randomly divided into three groups (n = 41) according to the used test material: WMTA, BA, BD. After canal space preparation, the filling materials were placed inside the lumen of the slices. After 72 hours, the maximum force applied to materials at the time of dislodgement was recorded and slices were then examined under a stereomicroscope at ×40 magnification to determine the nature of bond failure. Analysis of variance (ANOVA) test was used to compare means of push-out bond strength. Post-hoc test was then accomplished for multiple comparisons. Chi-square test was used to determine if there is significant association between the type of material and type of failure. Results The mean push-out bond strength ± standard deviation in MPa values of WMTA, BA and BD were 23.26 ± 5.49, 9.57 ± 3.45, 21.86 ± 6.9, respectively. There was no significant difference between the means of WMTA and BD (p = 0.566), but the mean of BA was significantly lower than those of WMTA and BD (p = 0.000). Under stereomicroscope, WMTA and BA showed a majority of mixed type of failure than cohesive failure, while BD showed the opposite. No adhesive failure was observed in any specimen. Conclusion The findings of the present study imply that the force needed for BD displacement is similar to WMTA and significantly higher than the force required to displace BA. How to cite this article Alsubait SA, Hashem Q, AlHargan N, AlMohimeed K, Alkahtani A. Comparative Evaluation of Push-out Bond Strength of ProRoot MTA, Bioaggregate and Biodentine. J Contemp Dent Pract 2014;15(3):336-340.

scholarly journals Comparison of MTA, CEM Cement, and Biodentine as Coronal Plug during Internal Bleaching: An In Vitro Study

2020 ◽  
Vol 2020 ◽  
pp. 1-8
Author(s):  
Paridokht Zarean ◽  
Parichehr Zarean ◽  
Arash Ravaghi ◽  
Maryam Zare Jahromi ◽  
Mitra Sadrameli
Keyword(s):  
Root Resorption ◽  
Mineral Trioxide Aggregate ◽  
In Vitro Study ◽  
Negative Control ◽  
Vitro Study ◽  
Control Group ◽  
Endodontically Treated Teeth ◽  
Cem Cement ◽  
Significant Difference

Background. Internal bleaching is a choice of treatment in discolored endodontically treated teeth. Cervical root resorption is one of the important complications of this treatment. A suggested procedure to prevent this type of resorption is using a coronal barrier under the bleaching materials. The aim of the study was to compare the microleakage of mineral trioxide aggregate (MTA), calcium-enriched mixture (CEM) cement, and Biodentine. Materials and Methods. In this in vitro study, a total of 60 single canal incisors were included. They were randomly divided into three experimental groups (n = 16), one positive control group (n = 6), and one negative control group (n = 6). Coronal portion of the canals in the experimental groups was sealed with 3 mm of MTA, CEM cement, or Biodentine as a coronal barrier. After 3 days, specimens were bleached. A fresh Enterococcus faecalis suspension was added to the samples. The culture tubes were observed for 45 days, and the daily turbidity was recorded. Statistical analysis was accomplished by the Kaplan–Meier test and SPSS 22. Results. All positive samples showed turbidity, whereas none of the negative samples allowed bacterial leakage. Results showed no significant difference between MTA, CEM cement, and Biodentine groups. ( P value = 0.304, 0.695, and 0.217). The bacterial microleakage for the two groups also did not show significant differences. Conclusions. CEM cement and Biodentine showed promising results as coronal plug, and clinical studies are needed to test these materials with MTA for avoiding microleakage in internal bleaching treatment.

The Interaction of Polymer Dispersions with Portland Cement Paste

1992 ◽  
Vol 289 ◽  
Author(s):  
Z. Su ◽  
J.M.J.M. Bijen ◽  
A.L.A. Fraaij
Keyword(s):  
Particle Size ◽  
Portland Cement ◽  
Polymer Dispersion ◽  
Polyvinylidene Chloride ◽  
Particle Size Analyzer ◽  
Polymer Dispersions ◽  
Portland Cement Paste ◽  
Mixing Water ◽  
Filtration Technique ◽  
Cement Surface

AbstractResearch has been done on the interaction of two types of polymer dispersions, a styrene acrylate (SA) and a polyvinylidene chloride (PVDLC), with portland cement by means of a COULTER particle size analyzer and a filtration technique. It was found that over 50% of the polymer SA particles were adsorbed onto the cement surface, the others did not adhere to cement grains and remained dispersed in the mixing water. However, the polymer dispersion PVDLC caused a quick flocculation and coagulation of cement grains and stiffening of the paste. Hardly any free polymer particles of this polymer were found in the liquid phase.

scholarly journals Immediate response of human dental pulp capped with mineral trioxide aggregate, Portland cement and biodentin

2019 ◽  
Vol 45 (2) ◽  
pp. 108-116
Author(s):  
AKM Bashar ◽  
A.K.M Nurul Kabir ◽  
Rozina Akhter Rizdina ◽  
Ranjit Ghosh ◽  
Ashis Kumar Biswas ◽  
...  
Keyword(s):  
Portland Cement ◽  
Inflammatory Reaction ◽  
Dental Pulp ◽  
Mineral Trioxide Aggregate ◽  
Tissue Reaction ◽  
Control Group ◽  
Pulp Capping ◽  
Pulp Inflammation ◽  
Significant Difference ◽  
Human Dental Pulp

Background: The initial inflammatory reaction of pulp capping materials on the dental pulp has an intimate relation in promoting the future cellular differentiation and biomaterial mineralisation. So, analysis of immediate pulpal tissue reaction in vivo, is also important for evaluation of ultimate efficacy any pulp capping agent. To observe immediate inflammatory response of Human Dental Pulp capped with Mineral Trioxide Aggregate (MTA), Biodentin and Portland Cement (PC). Methods: A total of 70 permanent premolars teeth planned to be extracted for orthodontic alignment of occlusion were used as study sample. The teeth were divided into 3 experimental groups, MTA (n=20), Biodentin (n=20) Portland cement (n=20) and control group (n=10). After having an occlusal exposure of approximately 1.5 mm in diameter; in group A, pulp of teeth was capped with 2-mm-thick layer of ProRoot White MTA (Dentsply) and in group B, with sterile Biodentin (Septodont) according to the manufacturer’s recommendations. Whereas in group C, pulp of teeth was capped with sterile Portland Cement (PC). After placing the experimental material in each group, all teeth restored with glass i‹xiomer cement. After 24 hours the teeth were extracted, fixed in 10% buffered formalin solution, then decalcified by 10% nitric acid and embedded in paraffin. Finally, sectioned into 2 to 3-micron-thick serial sections in the linguo-buccal plane and stained with hematoxylin-eosin. After then the amount of pulp inflammation (type, intensity, and extension) were determined by using a predetermined evaluation criterion under an optical microscope at 40a magnification. Ten intact teeth, which received no exposure and pulp capping but extracted due to orthodontic purpose were also collected and treated as the control group (group D); undergone same histologic preparation and evaluation. Significantstatistical differences among the experimental groups were to be found (p<0.05). Results: Histologically, all the three tested materials produced immediate pulpal tissue reaction. ‘Biodentin’ found to be most immediate pulpal tissue reactive (reactive in 100% cases) and ‘Portland Cement’ showed least immediate tissue reaction (only in 30.0% cases). whereas, MTA produced immediate tissue reaction only in 50.0% cases. Immediate pulpal inflammatory reaction in response to tested material found to be statistically significant different between ‘Biodentin’ and ‘Portland cmient’ (p=0.01), also between ‘Biodentin’ and ‘MTA’ and (p=0.001); but there was no statistically significant difference between ‘MTA’ and ‘Portland cement’ (p =0.197). Conclusion: Considering the maximum immediate pulpal tissue reaction (Inflammation), Biodentin is expected to produce most favorable ultimate bioactivity (biomaterial mineralization) after pulp capping. Bangladesh Med Res Counc Bull 2019; 45: 108-116

Effect of Different Radiopacifying Agents on the Physicochemical Properties of White Portland Cement and White Mineral Trioxide Aggregate

2012 ◽  
Vol 38 (3) ◽  
pp. 394-397 ◽  
Author(s):  
Marco Antonio Hungaro Duarte ◽  
Paloma Gagliardi Minotti ◽  
Clarissa Teles Rodrigues ◽  
Ronald Ordinola Zapata ◽  
Clovis Monteiro Bramante ◽  
...  
Keyword(s):  
Portland Cement ◽  
Physicochemical Properties ◽  
Mineral Trioxide Aggregate ◽  
White Portland Cement ◽  
White Mineral

scholarly journals Synthesis, Characterization, and Antibacterial Evaluation of a Cost-Effective Endodontic Sealer Based on Tricalcium Silicate-White Portland Cement

Materials ◽  
2021 ◽  
Vol 14 (2) ◽  
pp. 417
Author(s):  
Indra Primathena ◽  
Denny Nurdin ◽  
Hendra Hermawan ◽  
Arief Cahyanto
Keyword(s):  
Portland Cement ◽  
Antibacterial Properties ◽  
Mineral Trioxide Aggregate ◽  
Cost Effective ◽  
Inhibitory Effect ◽  
Tricalcium Silicate ◽  
Powder Morphology ◽  
Bismuth Trioxide ◽  
White Portland Cement ◽  
Antibacterial Evaluation

Mineral trioxide aggregate (MTA) is an ideal yet costly endodontic sealer material. Tricalcium silicate-white Portland cement (TS-WPC) seems to have similar characteristics to those of MTA. This work aims to characterize a modified TS-WPC and evaluate its antibacterial properties as a potential endodontic sealer material. The modified TS-WPC was synthesized from a 4:1 mixture of sterilized Indocement TS-WPC and bismuth trioxide using a simple solution method with 99.9% isopropanol. The mixture was stirred until it was homogenous, centrifuged, and dried. The material was then characterized using infrared spectroscopy, X-ray diffraction, and electron microscopy and subjected to antibacterial evaluation against Enterococcus faecalis using a Mueller–Hinton agar inhibition test. The results showed that the material was characterized by main functional groups of hydroxyls, silicate, bismuth trioxide, and tricalcium silicate, like those of a commercial MTA-based sealer, both tested after hydration. Modified TS-WPC before hydration showed similar powder morphology and size to the commercial one, indicating the ease of manipulation. Both materials exhibited antibacterial activity due to calcium dihydroxide’s ability to absorb carbon dioxide, which is essential for the anaerobic E. faecalis, with minimum inhibitory effect and bactericidal concentrations of 12,500 ppm and 25,000 ppm, respectively. The modified TS-WPC has the potential to become a cost-effective alternative endodontic sealer material.

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