PA EFDA Board Exam | 181 Questions with 100% Correct Answers
How many molars are present in the mandibular arch? Correct Answer: 6
The permanent mandibular second molar differs from the permanent mandibular first molar by
number of? Correct Answer: Cusps
Which is not found on the occlusal surface of a mandibular molar? Correct Answer: Cingulum
A cusp of carabelli is located on a maxillary first molar of the? Correct Answer: Mesiolingual
cusp
3 round protuberances Correct Answer: Mamelons
What is found on both posterior and anterior teeth? Correct Answer: Marginal ridges
A ligual pit is most commonly found on what teeth #'s? Correct Answer: 7 and 10
What molar is likely to have 3 buccal cusps? Correct Answer: Mandibular first
The label Mesiobucco-occlusal is appropriate for? Correct Answer: Point Angle of a posterior
tooth
On a maxillary first premolar what is the groove that sperates the buccal and lingual cusps?
Correct Answer: Central groove
The molar with a Y,H, or U pattern Correct Answer: Mandibular second premolar
A facial and lingual triangular ridge join to form? Correct Answer: Transverse ridge
Cusps for a mandibular first molar Correct Answer: mesiolingual, mesiofacial, distolingual,
distofacial, distal
Major difference between first and second molars? Correct Answer: 1st molars has 5 cusps, 2nd
molars have 4 cusps
Which is true of oblique ridges? Correct Answer: Only Maxillary molars have Oblique ridges
Facial surfaces of teeth include what? Correct Answer: Labial and Buccal surfaces
Elevated crests of enamel that form mesial and distal margins of the occlusal surface Correct
Answer: Marginal ridges
The bulk of a tooth is made up of Correct Answer: Dentin
Interproximal spaces between teeth Correct Answer: Gingival papillae
, Mesial and distal marginal ridges are found on Correct Answer: Both Posterior and Anterior
teeth
The distal triangular fossa of the maxillary first molar is separated from the central fossa by the?
Correct Answer: Oblique ridge
A pinpoint depression where two or more grooves meet? Correct Answer: Pit
V-shaped spaces between proximal surfaces of two adjoining teeth Correct Answer: Embrasure
A cavity prep the includes the mesial incisal angle of a maxillary central incisor is a? Correct
Answer: Class IV
Overbite Correct Answer: Vertical overlap of maxillary incisors
Centric occlusion Correct Answer: Touching together of the upper and lower teeth when jaws
are closed
Overjet Correct Answer: Horizontal space between upper and lower incisors
Excursive movements Correct Answer: Movement of jaw from left to right
Protrusive movements Correct Answer: Thrusting lower jaw forward
Crossbite Correct Answer: Mandibular teeth are facial to their maxillary counterparts
Working cusps Correct Answer: Lingual of upper; Buccal of lower
Non-working cusps Correct Answer: Buccal of upper; Lingual of lower
Walls of a molar Correct Answer: pulpal floor,buccal,distal,lingual,mesial
Features of the occlusal surface of a permanent maxillary molar include.. Correct Answer:
distomarginal ridge, mesiomarginal ridge, oblique ridge, distomarginal ridge, cusp of caribelli
Structure that covers the anatomical crown of a tooth Correct Answer: Enamel
The maxillary first premolar differs from the maxillary second premolar in that the maxillary
first premolar has: Correct Answer: 2 roots, one buccal and one lingual
The relationship between the working end of the instrument and the tooth surface Correct
Answer: Adaptation
Carious lesions are least likely to occur on Correct Answer: Cusp tips
How many molars are present in the mandibular arch? Correct Answer: 6
The permanent mandibular second molar differs from the permanent mandibular first molar by
number of? Correct Answer: Cusps
Which is not found on the occlusal surface of a mandibular molar? Correct Answer: Cingulum
A cusp of carabelli is located on a maxillary first molar of the? Correct Answer: Mesiolingual
cusp
3 round protuberances Correct Answer: Mamelons
What is found on both posterior and anterior teeth? Correct Answer: Marginal ridges
A ligual pit is most commonly found on what teeth #'s? Correct Answer: 7 and 10
What molar is likely to have 3 buccal cusps? Correct Answer: Mandibular first
The label Mesiobucco-occlusal is appropriate for? Correct Answer: Point Angle of a posterior
tooth
On a maxillary first premolar what is the groove that sperates the buccal and lingual cusps?
Correct Answer: Central groove
The molar with a Y,H, or U pattern Correct Answer: Mandibular second premolar
A facial and lingual triangular ridge join to form? Correct Answer: Transverse ridge
Cusps for a mandibular first molar Correct Answer: mesiolingual, mesiofacial, distolingual,
distofacial, distal
Major difference between first and second molars? Correct Answer: 1st molars has 5 cusps, 2nd
molars have 4 cusps
Which is true of oblique ridges? Correct Answer: Only Maxillary molars have Oblique ridges
Facial surfaces of teeth include what? Correct Answer: Labial and Buccal surfaces
Elevated crests of enamel that form mesial and distal margins of the occlusal surface Correct
Answer: Marginal ridges
The bulk of a tooth is made up of Correct Answer: Dentin
Interproximal spaces between teeth Correct Answer: Gingival papillae
, Mesial and distal marginal ridges are found on Correct Answer: Both Posterior and Anterior
teeth
The distal triangular fossa of the maxillary first molar is separated from the central fossa by the?
Correct Answer: Oblique ridge
A pinpoint depression where two or more grooves meet? Correct Answer: Pit
V-shaped spaces between proximal surfaces of two adjoining teeth Correct Answer: Embrasure
A cavity prep the includes the mesial incisal angle of a maxillary central incisor is a? Correct
Answer: Class IV
Overbite Correct Answer: Vertical overlap of maxillary incisors
Centric occlusion Correct Answer: Touching together of the upper and lower teeth when jaws
are closed
Overjet Correct Answer: Horizontal space between upper and lower incisors
Excursive movements Correct Answer: Movement of jaw from left to right
Protrusive movements Correct Answer: Thrusting lower jaw forward
Crossbite Correct Answer: Mandibular teeth are facial to their maxillary counterparts
Working cusps Correct Answer: Lingual of upper; Buccal of lower
Non-working cusps Correct Answer: Buccal of upper; Lingual of lower
Walls of a molar Correct Answer: pulpal floor,buccal,distal,lingual,mesial
Features of the occlusal surface of a permanent maxillary molar include.. Correct Answer:
distomarginal ridge, mesiomarginal ridge, oblique ridge, distomarginal ridge, cusp of caribelli
Structure that covers the anatomical crown of a tooth Correct Answer: Enamel
The maxillary first premolar differs from the maxillary second premolar in that the maxillary
first premolar has: Correct Answer: 2 roots, one buccal and one lingual
The relationship between the working end of the instrument and the tooth surface Correct
Answer: Adaptation
Carious lesions are least likely to occur on Correct Answer: Cusp tips
