MCQs on Occlusion - Oral Anatomy

The correct answers are highlighted in green.

# The maxillary teeth which have single antagonist are: (MAN-94, 95)
a) Lateral incisors
b) Permanent canines
c) Permanent central incisors
d) Third molars

# In occlusion, the teeth have: (MAN-94, AIIMS-93)
a) Cusp-to-cusp contact
b) Edge-to-edge contact
c) Marginal contact
d) Surface-to-surface contact

# In normal occlusion, with which groove / surface of the permanent mandibular first molar does the mesiobuccal cusp of the permanent maxillary first molar occlude:
a) Distobuccal groove
b) Mesial Surface
c) Mesiobuccal surface
d) Transverse groove

# Group function occlusion is common in: (MAN-02)
a) 10-14 years 
b) 15-25 years
c) Above 30 years 
d) Edentulous patients

# When a molar has no opposing tooth, it can become: (MAN-95)
a) Extruded 
b) Intruded
c) Protruded 
d) Retruded

# Overjet is defined as: (MAN-2K)
a) Horizontal overlap 
b) Vertical overlap
c) Transverse plane discrepancy
d) All the above

# Normal dentition in centric occlusion, opposing contact may be expected at: (AIIMS-03)
a) Buccal slopes of buccal cusps of maxillary posterior teeth
b) Buccal slopes of lingual cusps of maxillary posterior teeth
c) Lingual slopes of lingual cusps of mandibular posterior teeth
d) All slopes of lingual cusps of mandibular posterior teeth

#  In the intercuspal position, the lingual cusp of maxillary 2nd premolar contacts the: (AIPG-02, AIIMS-94)
a) Distal fossa of mandibular 2nd premolar
b) Mesial fossa of mandibular 1st molar
c) Distal marginal ridge of mandibular 2nd molar
d) Distal marginal ridge of mandibular 1st premolar

# In ideal intercuspation, maxillary canine articulates with: (AIPG-02)
a) Mandibular canine and 1st premolar
b) Mandibular canine and lateral incisor
c) Mandibular 1st premolar and 2nd premolar
d) Mandibular canine only  

#  In an ideal occlusion buccal cusps of maxillary teeth, occlude with: (AP-97, AIPG-94)
a) Fossa and ridges 
b) Grooves and embrasures
c) Lingual cusps of mandibular teeth
d) Occlusal pits and fissures of mandibular teeth

 # The key to occlusion is: (AIPG-91)
a) Maxillary permanent first molar
b) Maxillary permanent second molar
c) Maxillary primary first molar
d) Maxillary primary second molar

# If a permanent first molar is lost, the permanent second molar drifts to the: (AIIMS-93)
a) Buccal side 
b) Distal side
c) Mesial side 
d) Lingual side

# The incisal edges and the incisal thirds of facial surfaces of mandibular incisors and canines generally oppose lingual surfaces of maxillary incisor and canines: (AIPG-98)
a) Within the incisal thirds
b) At the junction of middle and cervical thirds
c) At the linguo cervical ridges
d) Immediately incisal to cingulam 

# Distobuccal cusp of 27 falls into: (AIPG-93)
a) Mesial pit of 37
b) Embrasure of 36 & 37
c) None of the above
d) Embrasure of 37 & 38

# Curve passing through the buccal and lingual cusp tips of the mandibular buccal teeth is:
a) Catenary curve
b) Wilson curve
c) Monson curve
d) Curve of Spee

# At the age of nine years, the mandibular permanent first molar has its distal contact with which of the following teeth? (MCET-14)
a) Deciduous 2nd molar
b) None
c) First premolar
d) Second premolar

#  In occlusion the teeth have: (KAR-04)
a) Cusp to cusp contact
b) Edge to edge contact
c) Surface to surface contact
d) Marginal contact

# Maxillary facial and mandibular lingual cusps require sufficient occlusal length and horizontal overlap for:
a) Soft tissue protection
b) Esthetics
c) Centric stability
d) Chewing efficiency 

# Facial occlusal line in the maxillary arch is formed by: (KCET-2012)
a) Centric holding cusps
b) Stamp cusps
c) Supporting cusps
d) Non-supporting cusps

# Maximum contact between occlusal surfaces, of maxillary and mandibular teeth occur during
a) Protrusive contacts
b) Laterotrusive contacts
c) Centric occlusion
d) Rest position

#  Desmodont is another name for: (AIPG-05)
a) The tooth with one wall pocket
b) Dehiscence
c) Periodontal ligament
d) Tooth with three walled pocket

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