Adhesion

Good adhesion depends on

• Mechanical Adhesion

• Clean Surface

• Adhesive

• All of the above

Enamel Composition

• Organic 2%

• Inorganic 2%

• Organic 98%

• non of the above

Acid etching propsed in

• 1945

• 1855

• 1845

• 1955

Acid etching done with

• 15%

• 50%

• 37%

• 10%

Dentin Has

• Inorganic 98%

• Organic 2%

• Organic 25%

• Inorganic 2%