Abstract
Aim:
To compare the histomorphological response of rat dental pulps capped with MM-MTA and ProRoot MTA at 1, 2 and 4 weeks postoperatively.
Materials and methods:
Direct pulp capping with MM-MTA and ProRoot MTA, overlaid with light-cured composite resin, was performed on right and left maxillary first molars of 20 Wistar rats. Animals were killed at 1, 2 and 4 weeks postoperatively. Biopsy samples were stained and viewed by light microscopy to determine dentin bridge formation. Data were statistically evaluated with the Kruskal-Wallis test (p < 0.05).
Results:
Absence of dentin bridge formation at 1 week, partial dentin bridge formation at 2 weeks and complete dentin bridge formation at 4 weeks are observed with MM-MTA and ProRoot MTA. The results showed no statistically significant difference between both materials at 4 weeks.
Conclusion:
Both materials produced similar responses in the pulp when used for pulp capping in intact, caries-free molars of rats.
MeSH terms
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Aluminum Compounds / chemistry
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Aluminum Compounds / therapeutic use*
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Animals
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Calcium Carbonate / chemistry
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Calcium Carbonate / therapeutic use
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Calcium Compounds / chemistry
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Calcium Compounds / therapeutic use*
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Calcium Sulfate / chemistry
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Calcium Sulfate / therapeutic use
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Composite Resins / chemistry
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Dental Pulp Exposure / therapy
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Dental Restoration, Permanent / methods
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Dentin, Secondary / drug effects
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Dentin, Secondary / pathology
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Dentin-Bonding Agents / chemistry
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Drug Combinations
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Molar / drug effects*
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Molar / pathology
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Oxides / chemistry
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Oxides / therapeutic use*
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Pulp Capping and Pulpectomy Agents / chemistry
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Pulp Capping and Pulpectomy Agents / therapeutic use*
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Rats
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Rats, Wistar
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Silicates / chemistry
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Silicates / therapeutic use*
Substances
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Aluminum Compounds
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Calcium Compounds
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Composite Resins
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Dentin-Bonding Agents
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Drug Combinations
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Oxides
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Pulp Capping and Pulpectomy Agents
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Silicates
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mineral trioxide aggregate
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Calcium Carbonate
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Calcium Sulfate