DEA-105 Mod 3 Unit 3 TISSUES OF THE TOOTH. TISSUES OF THE TOOTH Four Primary tissues of tooth: 1. 2....
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Transcript of DEA-105 Mod 3 Unit 3 TISSUES OF THE TOOTH. TISSUES OF THE TOOTH Four Primary tissues of tooth: 1. 2....
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DEA-105 Mod 3
Unit 3TISSUES OF THETOOTH
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TISSUES OF THE TOOTH Four Primary tissues of tooth:
1. 2. 3. 4.
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Tissue: Enamel
Characteristics of enamel: Hardest Covers Inorganic ____% Minerals: calcium & phosphorus Composed of enamel rods No ability to repair Color ranges:
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Enamel: Thicker at Nutritional disturbances may cause:
Weakened surface of enamel would be more:
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Enamel Clinical considerations:
FLUORIDE – can aid in:
Fluoride can be
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Enamel:
Primary function:
Helps tooth withstand:
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Dentin tissue Characteristics:
Makes up: Harder than:
Inorganic _____% Covered by _______ on crown and Covered by ____________on root
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Dentin Characteristics:
Color is: Dentinal tubules form __-shape pattern ___________form dentin
Has ability to:
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Dentin: Antibiotic therapy during formation
can cause permanent staining Dental caries progress ____rapidly
through dentin than enamel Dental hypersensitivity if exposed
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Dentin Structural changes in development:
Dentin is _____________when formed prior to eruption
________________dentin is formed later in life, in response to trauma
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Dentin tissue Sensitivity of dentin:
Dentin reacts to: Sensitivity is not uniform Exposed areas are Patients complain Air-water syringe can
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Dentin Functions:
Protection of• NOTE: THE THICKER THE ________
the more ____________for the _______
During cavity preparation, a protective layer of insulation is placed
Dentin Repairs itself in response to trauma
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Pulp tissue Characteristics:
Contains: Sensitivity to: Pulp identifies __________ and__________changes, virbrations and___________invasion
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Pulp Only soft tissue Pulp tissue in crown ___________ Pulp horns Pulp canal located in ___________
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Pulp tissue Functions:
Assist in production of dentin ***Provide sensitivity Act as a defense mechanism by
reacting to injury Provide nourishment to the tooth
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Pulp tissue Clinical considerations:
Injury to tooth causes _________ Pressure inside tooth causes______
may require _____________
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Cementum Characteristics:
Covers _________ of tooth Bone-like tissue Inorganic ________ Color:
Function: