2. WHY DO WE USE BIOACTIVE
MATERIALS IN THIS CENTURY?
1. To remineralise and strengthen the tooth structure
through fluoride release and/or through the release
of other materials.
2. Forming an Apatite-like material on its surface
when immersed in body body fluid or simulated by
body fluid ( SBF ) over time.
3. Regenerate live tissues to promote the vitality in
the tooth.
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3. BIOACTIVITY IN RESTORATIVE
DENTISTRY
• Materials that remineralize
Glass Ionomer cements
Giomers
• Materials that can regenerate live tissues
Mineral Trioxide aggregate (MTA)
Biodentine
• Materials that deposit hydroxyapatite
Resin Modified calcium silicate
Calcium silicates as Endodontic selaers
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5. MINERAL TRIOXIDE AGGREGATE
MTA is a bioactive material that is mainly composed of calcium and
silicate. Tricalcium aluminate, gypsum and tetracalcium
aluminoferrite. These calcium silicate containing materials have a
common characteristic of apatite formation. This is a material of
choise for vital pulp therapy, apexification and apexogenesis,
correcting procedural errors as well as for root-end filling material in
apicoectomy procedures.
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6. MTA ADVANTAGES OVER CALCIUM
HYDROXIDE
• Rapid cell growth promotion in Vitro
• Greater ability to maintain the integrity of pulp tissue
• Thicker dentinal bridge, less inflammation, less hyperemia and
less pulp necrosis
• Induce the formation of dental bridge at faster rate
• High ability to resist the penetration of microorganisms
• Limited antibacterial effect
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9. DIRECT PULP CAPPING USING MTA
In exposed pulps, to preserve the pulpal vitality, MTA is used as a
pulp capping material. It prevents bacterial leakage with a high
level of biocompatibility.
MTA simulates dentin bridge formation adjacent to dental pulp.
Dentinogenesis of pulp due to its sealing ability, biocompatibility,
alkalinity and other properties healing. It forms a complete
barrier at exposure site with free of inflammation.
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11. BIODENTINE
Biodentine can be used as a complete
dentin replacement material to treat
damaged dentin both in the crown and
root with clinical indications that exceed
those of MTA and other related Portland
cement calcium silicate products.
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12. BIODENTIN COMPOSITION
Fine hydrophilic powder composed
of modified powder composition of
MTA.
Biodentin is available as powder in
a capsule or liquid in a pipette
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13. COMPOSITION OF BIODENTIN
POWDER ( packaged in capsule )
• Tricalcium silicate ( main core material )
• Dicalcium silicate
• Calcium carbonate
• Iron oxide ( shade )
• Zirconium oxide ( radiopacity )
LIQUID ( packaged in pipette )
• Calcium chloride ( accelerator )
• Hydrosoluble polymer (water reducing agent, faster setting )
• Water
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