MCQs on Complete Dentures - Jaw Relations and Miscellaneous

# Faulty registration of occlusion cannot be directly attributed to:
A. Viscosity
B. pain in the muscles of mastication
C. pain in the TMJ
D. Skeletal class III relation

# Bennett movement of mandible is related to:
A. Condylar rotation
B. Lateral bodily movement of mandible
C. Protrusive movement of mandible
D. Edge to edge occlusion

# The interarch distance measured when the occlusal rims are in uniform contact is:
A. Freeway Space
B. Vertical dimension of occlusion
C. Vertical dimension of rest
D. Christensen's space

# Increased VDO results in:
A. Strained facial appearance
B. Trauma to underlying tissues
C. Clicking of teeth
D. All of the above

# Before an arbitrary face bow transfer record, the dentist must determine:
A. Physiologic rest position
B. Inclination of each condyle
C. Axial centre of rotation of condyle
D. Kinematic axis of movement of condyle

# Patient has difficulty in swallowing as a CD wearer. The most probable cause is:
A. Decreased vertical dimension
B. Increased vertical dimension
C. Thickness of flange
D. Decreased retention

# If the interocclusal distance is increased beyond physiologic limits, the patient's chief complaint may result from:
A. a muscular imbalance
B. an occlusal disharmony in centric
C. a displacement of the mandibular denture
D. a displacement of the manxillary denture while yawning

# The occlusal plane for the complete denture patient is determined by:
A. The facebow device which determines the occlusal plane
B. The position of the upper first molar
C. The height of the retromolar pad and anterior aesthetic height
D. The curve of spee and the anterior aesthetics

# What is the established vertical dimension freeway space in millimeters?
A. 5-6
B. 1-3
C. 2-4
D. 6-8

# Gothic arch tracing:
A. Intraoral tracing device
B. Extraoral tracing device
C. Records centric relation and the movements of mandible in horizontal plane
D. Records centric occlusion and the movements of mandible in vertical plane

# Hinge axis face bow records:
A. relationship of teeth to the axis of rotation of the jaw
B. relationship of maxilla to mandible
C. relationship of mandible to cranium
D. All of the above

# The purpose of plane of orientation is:
A. To serve as a guide in establishing occlusal plane
B. To aid in measuring height and length of posterior teeth
C. To serve as an arbitrary plane when established on the articulator
D. To divide the distance between upper and lower cast equally

# Freeway space of less than normal, in complete dentures has the following adverse result:
A. Mucosal irritation
B. Irresistible alveolar ridge resorption
C. Nonspecific ulcerations
D. Non of the above

# Hinge axis is located with the help of:
A. Ear rods
B. Maxillomandibular vertical relations
C. Kinematic face bow
D. Orbital pointer

# Freeway space is defined as:
A. Vertical dimension at rest
B. Vertical dimension at occlusion + vertical dimension at rest
C. vertical dimension at rest - vertical dimension at occlusion
D. Vertical dimension at occlusion - vertical dimension at rest

# The use of kinematic facebow is contraindicated in the edentulous patients because:
A. It has to be used on the mandibular ridge
B. Recording base may be unstable on the edentulous mandible
C. Movement of bases may lead to inaccuracy in recording hinge axis
D. All of the above

# All are consequences of edentulism except:
A. Prognathic appearance
B. Thinning of lips
C. Decreased length of lip
D. Increase in columella phhiltrum angle

# A complete denture patient complains that he has pain in his throat during swallowing. This indicates:
A. Over extended PPS
B. Over extended lingual flange
C. Over extended lingual flange in retromylohyoid region
D. His tonsils are inflammed

# Overload of denture base is caused by:
A. Small bases
B. Too large bases
C. Small teeth
D. Large teeth

# A patient who has recently received a pair of complete denture complains of difficulty in swallowing. The reason for this is most likely to be:
A. Excessive vertical dimension of occlusion with resulting decrease in interocclusal distance
B. Interocclusal distance of more than normal
C. Alveolar ridge with bony spicules
D. Candida albicans colonizing the mouth causing patient discomfort

# Indication of excess pressure on basal seats by denture bases may be best known:
A. By the patient's comment
B. By the correct use of Pressure indicator paste
C. By indelible pencil markings
D. By using occlusion wax

# The patient complains of looseness of dentures within two hours of insertion. The most likely cause is:
A. Psychological
B. Adaptive unresponsiveness
C. Deflective occlusion
D. Unretentive denture

# Numbness and tingling sensation felt in the anterior one third of the tongue can be due to:
A. Over extended lingual borders
B. Sharp and rough lingual borders
C. Allergy to residual monomer of acrylic
D. Excessive vertical dimension

# Oral examination of an edentulous patient should include digital palpation. Why?
A. The arch form is more accurately evaluated
B. Undercut areas may be better evaluated
C. The ridge relationship may be better evaluated
D. None of the above

# A patient complains of generalized soreness over the entire mandibular ridge. This is probably due to:
A. Occlusal imbalance
B. Excessive vertical dimension
C. Over extended borders
D. Under extended borders

# The normal biting force in natural dentition and complete denture is:
A. 200 N and 600 N
B. 9000 N and 7000 N
C. 100 N and 30 N
D. 600 N and 110 N

# If dentures are cleaned in boiling water, they:
A. Become sticky
B. Warp
C. Melt
D. Galvanize

# The direction of resorption of the maxillary ridge is:
A. downwards and buccally
B. upwards and lingually
C. downwards and lingually
D. upwards and bucccally

# House classification is based on:
A. Mental attitude of patient
B. Type of alveolar ridge
C. Maxilla and mandible relation
D. None of the above

# Uncontrolled diabetes poses a problem to prosthodontist as:
A. more bone resorption
B. increased salivary flow
C. less bone resorption
D. less tissue laxity

# Fleeting painful sores are caused by:
A. Overextended denture borders
B. Occluding face height being too great
C. malocclusion
D. none of the above

# Burning sensation in anterior palate of a patient wearing new complete denture may be due to:
A. Overextension in the labial sulcus area
B. Occlusal discrepancies
C. Inadequate relief of incisive papilla
D. Rough palatal Surface

# Punched out lesions on the alveolar ridge is due to:
A. Acrylic nodules on tissue surface of denture
B. Disturbed occlusion
C. Overextended borders of denture
D. Narrow occlusal table

# Which of the following is the best denture patient?
A. Skeptical
B. Philosophical
C. Critical
D. Indifferent

# In a denture wearing patient, there is:
A. no bone resorption
B. bone formation
C. Independent of denture, there is bone resorption
D. Initial bone resorption followed by bone formation

# All of the following statements about denture stomatitis are true EXCEPT:
A. It is usually not associated with a sore mouth
B. It is usually associated with wearing a denture at night
C. It is more common in diabetics
D. It is more common in men