Post on 05-Apr-2018
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Principle of adhesion
Adhesion
Attachment/bonding of one substance to another
Cohesion
attachment between to same substances
Adhesive /adherent /bonding agent
Material that, when applied to surfaces of substances, can
join them together, resist separation and transmit loads
across the bondBond strength
measure of load-bearing capability of the adhesive
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Principles of adhesion
Dentine bonding agents / dentine adhesive
/dentine adhesive system
In dental terminology the bonding agent/adhesive
enamel as well as dentine.
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Theories of adhesion
Mechanical/micro-mechanical
Adsorption
Diffusion
Electrostatic
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Mechanism of adhesion to tooth substrate
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Factors affecting adhesion to tooth
tissue
Compositional and structural aspect of
Enamel and dentine
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Enamel prisms or rods
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Dentine structure
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Dentine structure
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CHANGES IN DENTINAL STRUCTURE
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SMEAR LAYER
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SMEAR LAYER
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DENTINE
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