Adhesive-Dentin Bond Durability Quiz

What is one of the factors affecting the interface durability related to dentin?

• The taste of the dentin

• The heterogeneity of the structure and composition of dentin

• The color of the dentin

• The smell of the dentin

Which enzyme is fossilized in normal dentin and can degrade the exposed collagen network upon activation?

• Lipase

• Amylase

• Catalase

• Matrix metalloproteinase enzymes

What is the role of saliva in bond degradation?

• To strengthen the bond

• To prevent degradation

• To clean the bond

• To participate in the degradation of the adhesive and composite

Which adhesive system is thought to overcome the shortcomings of exposed collagen network formation within the bonds of total-etching adhesives?

• Etch and rinse adhesives

• None of the above

• All-in-one adhesive systems

• Self-etch adhesives

What is one of the factors affecting the stress transfer across the interface related to material?

• The color of the material

• The taste of the material

• Differences in flexural and compressive strength

• The smell of the material

What is the mechanism of dentin-adhesive interface degradation related to the hydrophilic domain?

• Enhanced adhesion

• Increased bond strength

• Reduced water ingress

• Limited monomer/polymer conversion

Which factor directly affects restoration longevity based on the position of the tooth in the mouth?

• The tooth size

• The type of food consumed

• The tooth color

• The tooth type

What is the effect of intrinsic water at concentrations >5 vol.% on the light polymerization of HEMA?

• It accelerates polymerization

• It inhibits polymerization

• It has no effect

• It enhances polymerization

Which enzyme is NOT mentioned as being present in human saliva and participating in bond degradation?

• Amylase

• Pseudocholinesterase

• Cholesterol esterase

• Acetylcholinesterase

What is the effect of water on the resin in methacrylate materials?

• It promotes chemical hydrolysis of ester bonds

• It strengthens the resin

• It reduces the hydrophilicity

• It has no effect