FAGD EXAM QUESTIONS WITH
CORRECT ANSWERS
What muscles are elevator muscles and help close the jaw during mastication? -
Correct Answers -Masseter
Medial pterygoid
Temporalis
What muscles are depressor muscles and help open the jaw? - Correct Answers -
Lateral pterygoid
Suprahyoid (digastric)
What are the two components to the masseter muscle? - Correct Answers -Superficial
and deep masseter
What is the origin and insertion of the Masseter muscle? - Correct Answers -Origin - the
outer surface of the zygoma
Insertion - Lower boarder of the ramus
What is the action of the masseter muscle? - Correct Answers -Elevation of mandible
and aids in protrusion
What are the three components of the temporalis muscle? - Correct Answers -Anterior,
Middle and Posterior
What is the origin and insertion of the temporalis muscle? - Correct Answers -Origin -
Temporal fossa and lateral surface of the skull
Insertion - Coronoid process and anterior ascending ramus
What is the action of the temporalis muscle? - Correct Answers -elevates and retrudes
the mandible
What is the origin and insertion of the medial pterygoid muscle? - Correct Answers -
Origin - pterygoid fossa
Insertion - medial surface of the mandibular angle
,What is the action of the medial ptyergoid? - Correct Answers -Elevates the mandible,
aids in protrusion.
Acts like a sling with the masseter muscle.
If a unilateral contractions happens of the medial pterygoid, what do you get? - Correct
Answers -Medio-trusive movement.
One condyle translates while the other rotates.
Balancing side movement
What are the two components of the lateral ptyergoid? - Correct Answers -Superior and
Inferior
What is the origin and insertion of the superior lateral ptyergoid? - Correct Answers -
Origin - Infratemporal surface of the greater wing of the sphenoid bone
Insertion - Medial portion of the articular disc (30-40%), Neck of the condyle
What is the origin and insertion of the inferior lateral ptyergoid? - Correct Answers -
Origin - outer surface of lateral pterygoid plate
Insertion - neck of condyle
What is the function of the lateral ptyergoid? - Correct Answers -Protrudes the mandible
Aids in opening or depressing the mandible
If you get a lateral ptyergoid spasm, which side of the mouth would you have an
interference? - Correct Answers -•Discludes the dentition on the affected side (posterior)
•Causes premature contact of the anterior teeth on the contralateral side
What is the origin and insertion of the anterior belly of the suprahyoid digastric muscle?
- Correct Answers -•Origin
-lingual surface of mandible at the midline
•Insertion
-intermediate tendon on hyoid bone
•Innervated by the 5th cranial nerve
What is the origin and insertion of the posterior belly of the suprahyoid digastric muscle?
- Correct Answers -•Origin
-mastoid notch
•Insertion
-intermediate tendon on the hyoid bone
•Innervated by the 7th cranial nerve
What is the action of the suprahyoid digastric muscle? - Correct Answers -Action
-depresses the mandible
-accessory opening muscle
,Which biomechanic movement of the condyle is a "hinge" movement? Where does it
occur? - Correct Answers -Rotational movement
-occurs between the condyle and the disc
Which biomechanic movement of the condyle is a "gliding" movement? Where does it
occur? - Correct Answers -Translational movement
- occurs between the disc and the fossa
If one joint is not translating, The mandible will deviate to the __________ side - Correct
Answers -affected
A slight translation in the horizontal plane of the "working side" of the condyle is known
as _________ movement. - Correct Answers -Bennett Movement
-Bodily shift of the mandible in the direction of the working condyle
- Just stating that when the jaw is moving right, the mandibular body of the left is is
moving over the horizontal plan.
In a left lateral movement, the right condyle moves ________ and the left condyle shifts
in a ________ _______ direction - Correct Answers -- forward
- lateral posterior
In a left lateral movement, which side is the "working" side? - Correct Answers -Left
In a left lateral movement, which side is the "non-working" or "balancing side" - Correct
Answers -Right
In para-function, you have Iso________ contractions. Which direction are the forces
applied? - Correct Answers -METRIC
Horizontal
In functional contractions, you have Iso________ contractions. Which direction are the
forces applied? - Correct Answers -TONIC
Vertical
What is : "A stereotyped movement disorder characterized by rhythmic masticatory
muscle activity associated with tooth grinding and occasional tooth clenching" - Correct
Answers -Sleep Bruxism
The clinical examination for SB diagnosis includes: - Correct Answers --abnormal tooth
wear (attrition, wear facets)
-masticatory muscle hypertrophy
- muscle tenderness
T/F. Bruxism is common in children. - Correct Answers -True.
, T/F. It is reported that occlusal adjustment will reduce bruxism to tolerable levels -
Correct Answers -True
Less than 40 bruxism events per hour, is classified as (normal, mild, moderate or
severe?) - Correct Answers -Normal
40-75 bruxism events per hour, is classified as (normal, mild, moderate or severe?) -
Correct Answers -Mild
75-124 bruxism events per hour, is classified as (normal, mild, moderate or severe?) -
Correct Answers -Moderate
125+ bruxism events per hour, is classified as (normal, mild, moderate or severe?) -
Correct Answers -Severe
In SB patients, SB episodes occur at a frequency of ______ times per hour of sleep -
Correct Answers -5.8
Centric occlusion (CO)
•Habitual occlusion
•Habitual Centric
•The most complete interdigitation of the teeth
These are all different ways of saying? - Correct Answers -MIP
Centric Relation, also known as musculoskeletal stable position, is determined by? -
Correct Answers --joint anatomy
-muscles physiology
-disc position
What will the Anterior teeth do during Mutually Protected Occlusion? - Correct Answers
--Anterior teeth will disclude the posterior teeth during excursive movements of the
mandible
-Anterior teeth will contact lightly during maximum intercuspation
Criteria for Optimal Occlusion, _____ loading of occlusal forces - Correct Answers -Axial
Straight up and down
Traumatic occlusion, can cause hemorrhage and congestion in the __________ -
Correct Answers -PDL
When doing occlusal adjustments for Working contacts, where do you adjust? - Correct
Answers -•lingual incline of buccal cups
•facial(buccal) incline of lingual cusp
BULL, Buccal of upper teeth, Lingual of lower. Its the Buccal SIDE of the lingual cusp
for BU.
Lingual SIDE of the buccal cusp for Li
CORRECT ANSWERS
What muscles are elevator muscles and help close the jaw during mastication? -
Correct Answers -Masseter
Medial pterygoid
Temporalis
What muscles are depressor muscles and help open the jaw? - Correct Answers -
Lateral pterygoid
Suprahyoid (digastric)
What are the two components to the masseter muscle? - Correct Answers -Superficial
and deep masseter
What is the origin and insertion of the Masseter muscle? - Correct Answers -Origin - the
outer surface of the zygoma
Insertion - Lower boarder of the ramus
What is the action of the masseter muscle? - Correct Answers -Elevation of mandible
and aids in protrusion
What are the three components of the temporalis muscle? - Correct Answers -Anterior,
Middle and Posterior
What is the origin and insertion of the temporalis muscle? - Correct Answers -Origin -
Temporal fossa and lateral surface of the skull
Insertion - Coronoid process and anterior ascending ramus
What is the action of the temporalis muscle? - Correct Answers -elevates and retrudes
the mandible
What is the origin and insertion of the medial pterygoid muscle? - Correct Answers -
Origin - pterygoid fossa
Insertion - medial surface of the mandibular angle
,What is the action of the medial ptyergoid? - Correct Answers -Elevates the mandible,
aids in protrusion.
Acts like a sling with the masseter muscle.
If a unilateral contractions happens of the medial pterygoid, what do you get? - Correct
Answers -Medio-trusive movement.
One condyle translates while the other rotates.
Balancing side movement
What are the two components of the lateral ptyergoid? - Correct Answers -Superior and
Inferior
What is the origin and insertion of the superior lateral ptyergoid? - Correct Answers -
Origin - Infratemporal surface of the greater wing of the sphenoid bone
Insertion - Medial portion of the articular disc (30-40%), Neck of the condyle
What is the origin and insertion of the inferior lateral ptyergoid? - Correct Answers -
Origin - outer surface of lateral pterygoid plate
Insertion - neck of condyle
What is the function of the lateral ptyergoid? - Correct Answers -Protrudes the mandible
Aids in opening or depressing the mandible
If you get a lateral ptyergoid spasm, which side of the mouth would you have an
interference? - Correct Answers -•Discludes the dentition on the affected side (posterior)
•Causes premature contact of the anterior teeth on the contralateral side
What is the origin and insertion of the anterior belly of the suprahyoid digastric muscle?
- Correct Answers -•Origin
-lingual surface of mandible at the midline
•Insertion
-intermediate tendon on hyoid bone
•Innervated by the 5th cranial nerve
What is the origin and insertion of the posterior belly of the suprahyoid digastric muscle?
- Correct Answers -•Origin
-mastoid notch
•Insertion
-intermediate tendon on the hyoid bone
•Innervated by the 7th cranial nerve
What is the action of the suprahyoid digastric muscle? - Correct Answers -Action
-depresses the mandible
-accessory opening muscle
,Which biomechanic movement of the condyle is a "hinge" movement? Where does it
occur? - Correct Answers -Rotational movement
-occurs between the condyle and the disc
Which biomechanic movement of the condyle is a "gliding" movement? Where does it
occur? - Correct Answers -Translational movement
- occurs between the disc and the fossa
If one joint is not translating, The mandible will deviate to the __________ side - Correct
Answers -affected
A slight translation in the horizontal plane of the "working side" of the condyle is known
as _________ movement. - Correct Answers -Bennett Movement
-Bodily shift of the mandible in the direction of the working condyle
- Just stating that when the jaw is moving right, the mandibular body of the left is is
moving over the horizontal plan.
In a left lateral movement, the right condyle moves ________ and the left condyle shifts
in a ________ _______ direction - Correct Answers -- forward
- lateral posterior
In a left lateral movement, which side is the "working" side? - Correct Answers -Left
In a left lateral movement, which side is the "non-working" or "balancing side" - Correct
Answers -Right
In para-function, you have Iso________ contractions. Which direction are the forces
applied? - Correct Answers -METRIC
Horizontal
In functional contractions, you have Iso________ contractions. Which direction are the
forces applied? - Correct Answers -TONIC
Vertical
What is : "A stereotyped movement disorder characterized by rhythmic masticatory
muscle activity associated with tooth grinding and occasional tooth clenching" - Correct
Answers -Sleep Bruxism
The clinical examination for SB diagnosis includes: - Correct Answers --abnormal tooth
wear (attrition, wear facets)
-masticatory muscle hypertrophy
- muscle tenderness
T/F. Bruxism is common in children. - Correct Answers -True.
, T/F. It is reported that occlusal adjustment will reduce bruxism to tolerable levels -
Correct Answers -True
Less than 40 bruxism events per hour, is classified as (normal, mild, moderate or
severe?) - Correct Answers -Normal
40-75 bruxism events per hour, is classified as (normal, mild, moderate or severe?) -
Correct Answers -Mild
75-124 bruxism events per hour, is classified as (normal, mild, moderate or severe?) -
Correct Answers -Moderate
125+ bruxism events per hour, is classified as (normal, mild, moderate or severe?) -
Correct Answers -Severe
In SB patients, SB episodes occur at a frequency of ______ times per hour of sleep -
Correct Answers -5.8
Centric occlusion (CO)
•Habitual occlusion
•Habitual Centric
•The most complete interdigitation of the teeth
These are all different ways of saying? - Correct Answers -MIP
Centric Relation, also known as musculoskeletal stable position, is determined by? -
Correct Answers --joint anatomy
-muscles physiology
-disc position
What will the Anterior teeth do during Mutually Protected Occlusion? - Correct Answers
--Anterior teeth will disclude the posterior teeth during excursive movements of the
mandible
-Anterior teeth will contact lightly during maximum intercuspation
Criteria for Optimal Occlusion, _____ loading of occlusal forces - Correct Answers -Axial
Straight up and down
Traumatic occlusion, can cause hemorrhage and congestion in the __________ -
Correct Answers -PDL
When doing occlusal adjustments for Working contacts, where do you adjust? - Correct
Answers -•lingual incline of buccal cups
•facial(buccal) incline of lingual cusp
BULL, Buccal of upper teeth, Lingual of lower. Its the Buccal SIDE of the lingual cusp
for BU.
Lingual SIDE of the buccal cusp for Li
