Orofacial Exam #4 EXAM 2026 | ACTUAL REAL EXAM
CURRENTLY TESTING AND FREQUENTLY TESTED EXAM
QUESTIONS WITH VERIFIED ANSWERS AND RATIONALES
WITH A STUDY GUIDE | GUARANTEED PASS | LATEST
UPDATE
Enamel Is ____ Withdrawn During Pregnancy
◦ Can Be Dissolved In Acid (morning sickness-vomiting is acidic)
not
Enamel ____ Be Reproduced
-Ameloblasts Inactive
cannot
The ____ Of The Enamel Rods Increases Resistance To Breakage
curvature
,DECAY PROCESS:
Step 1. The______Of The Enamel Rods Influences The Path Of Decay
• Contact Area: Perpendicular To DEJ
• Decay Spreads Straight To __________
Step 2. •Rods Fan Out
• Small Cavity May Be Extensive Beneath The Opening=Pits and Fissures
arrangement and DEJ
The ____ Mineralized Areas Of Enamel Speeds Spread Of Decay
low
◦ AGE RELATED CHANGES OF ___________
◦ Attrition
◦ Less Permeability-more calcified
◦ Darker
◦ Reduction Of Caries
◦ Increased Surface Fluoride Content
◦ Influenced By Environment And Eating Habits
enamel
Unlike enamel, ______ and ____ cannot be viewed clinically if the teeth and
associated periodontium are healthy.
dentin and pulp
,Both _______and make up the inner portion of the tooth
-Not exposed to the oral environment except when certain dental
pathology exists (bruxism, attrition, recession)
dentin and pulp
DENTIN First Forms In the _________/ 1st
cusp tips and incisal edges
_ ____ means the origin and formation of dentin
dentinogenesis
What forms the bulk of the tooth and are interdependence-work together?
a) pulp and enamel
b) enamel and pulp
c) dentin and pulp
c
Dentin is formed During What Stage?
a) cap stage
b) bell stage
c) initiation stage
d) bud stage
b
, DENTIN is harder than _________and_________
cementum and bone
The ORGANIC Matrix Of Dentin Is the Part That Remains ___________
-It is deposited _______ and is composed of collagen fibrils and ground
substance
unmineralized and first
The INORGANIC Matrix Of Dentin Is The Part That __ OR Crystallizes To
Become Hard
-It Is Composed Of Hydroxypatite And Is Deposited On And Around
________
mineralizes and fibrils
What Portion Of The Tooth Has The FIRST Highest Percentage Of Inorganic
Material?
a) alveolar bone
b) dentin
c) cementum
d) enamel
d
CURRENTLY TESTING AND FREQUENTLY TESTED EXAM
QUESTIONS WITH VERIFIED ANSWERS AND RATIONALES
WITH A STUDY GUIDE | GUARANTEED PASS | LATEST
UPDATE
Enamel Is ____ Withdrawn During Pregnancy
◦ Can Be Dissolved In Acid (morning sickness-vomiting is acidic)
not
Enamel ____ Be Reproduced
-Ameloblasts Inactive
cannot
The ____ Of The Enamel Rods Increases Resistance To Breakage
curvature
,DECAY PROCESS:
Step 1. The______Of The Enamel Rods Influences The Path Of Decay
• Contact Area: Perpendicular To DEJ
• Decay Spreads Straight To __________
Step 2. •Rods Fan Out
• Small Cavity May Be Extensive Beneath The Opening=Pits and Fissures
arrangement and DEJ
The ____ Mineralized Areas Of Enamel Speeds Spread Of Decay
low
◦ AGE RELATED CHANGES OF ___________
◦ Attrition
◦ Less Permeability-more calcified
◦ Darker
◦ Reduction Of Caries
◦ Increased Surface Fluoride Content
◦ Influenced By Environment And Eating Habits
enamel
Unlike enamel, ______ and ____ cannot be viewed clinically if the teeth and
associated periodontium are healthy.
dentin and pulp
,Both _______and make up the inner portion of the tooth
-Not exposed to the oral environment except when certain dental
pathology exists (bruxism, attrition, recession)
dentin and pulp
DENTIN First Forms In the _________/ 1st
cusp tips and incisal edges
_ ____ means the origin and formation of dentin
dentinogenesis
What forms the bulk of the tooth and are interdependence-work together?
a) pulp and enamel
b) enamel and pulp
c) dentin and pulp
c
Dentin is formed During What Stage?
a) cap stage
b) bell stage
c) initiation stage
d) bud stage
b
, DENTIN is harder than _________and_________
cementum and bone
The ORGANIC Matrix Of Dentin Is the Part That Remains ___________
-It is deposited _______ and is composed of collagen fibrils and ground
substance
unmineralized and first
The INORGANIC Matrix Of Dentin Is The Part That __ OR Crystallizes To
Become Hard
-It Is Composed Of Hydroxypatite And Is Deposited On And Around
________
mineralizes and fibrils
What Portion Of The Tooth Has The FIRST Highest Percentage Of Inorganic
Material?
a) alveolar bone
b) dentin
c) cementum
d) enamel
d
