Final Review: Slides 41-51 Flashcards
41: Perm Mand Second Molar - Facial
Q: There is one facial groove, called the ______ groove, and it divides the ________ and ________ cusps.
A1: Facial groove
A2 and 3: Mesiofacial and distofacial cusps
41: Perm Mand Second Molar - Facial
Q: The facial groove ends in a distinct facial ______ located in what division of the crown?
A1: Distinct facial pit
A2: In the middle third of the crown
41: Perm Mand Second Molar - Facial
Which cusp is slightly wider than the other?
- Mesiofacial or distofacial cusp?
A1: Mesiofacial cusp is wider than distofacial cusp
42: Perm Mand Second Molar - Mesial
Q1: When measured from the cervical line to the respective cusp tips, the _______ (facial or lingual) outline of the crown has a longer measurement.
Q2: The _____ (facial or lingual) cusp tip is more pointed.
A1: Facial
A2: Lingual cusp tip more pointed (Facial more rounded)
43: Perm Mand Second Molar - Occlusal
Multiple Correct Answers: The central pit forms from which grooves meeting?
- Facial, Lingual, Distal, Mesial, Mesiofacial, Distofacial, or Central?
Central Pit: Forms from Facial, Lingual, and Central grooves meeting
43: Perm Mand Second Molar - Occlusal
Q: The central pit is located on which half of the crown?
A: Lingual half of the crown
44: Perm Mand Third Molar - Mesial
Q1 and 2: The inclines of the ______ ridges of both the _______ and ______ cusps are steeply angled.
Q3: They meet at approximately ___ degrees from the horizontal.
A1: Triangular ridges
A2: Facial and Lingual cusps
A3: Forty degrees
45: Perm Mand Third Molar - Occlusal
Q: The ____________ line angle is the most angled and sharpest.
A: Mesiolingual line angle
46: Perm Max First Premolar - Mesial
The length of the root trunk will vary but usually the ____________ of the root system will definitely present a facial and lingual root. This tooth may present a single root but will almost always have two root canals and two apical foramina.
A: Apical one-fourth
- Perm Max First Premolar - Mesial
Q: All tooth forms will have a relatively deep _______________ that increases in width from the point of bifurcation to the cervical line.
A: Root depression
- Perm Max First Premolar - Mesial
True/False: The mesiofacial root depression on the Perm Max First Premolar runs from the point of bifurcation and crosses the cervical line.
True - The mesial root depression does cross the cervical line.
- Perm Max First Molar - Lingual
There is a ______ (shallow or deep) developmental depression in the _________ (cervical, middle, or apical third) of the lingual root.
The depression CONSISTENTLY extends occlusally from the root surface and across the ______ line onto the cervical third of the crown.
A1: Shallow
A2: Middle third of the lingual root
A3: Across the cervical line
- Perm Max Central Incisor
Q: The pulp chamber is wider on the _______ (facial or lingual) aspect than on the ______ (facial or lingual) in cervical cross-section.
A1: Facial
A2: Lingual
- Perm Max Central Incisor
Q: There are three distinct ____________ in the pulp chamber.
A: Three distinct pulp horns
- Perm Mand Canine - Canals and Roots
Match the numbers to the answers:
- 5.2%, 10.6%, 89.4%, 94.8%
A. Only one canal seen
B. Two canals are seen
C. Only one root evident
D. Two roots evident
(Hint: Each pair will equal 100%)
A. One canal - 89.4%
B. Two canals - 10.6%
C. One root - 94.8%
D. Two roots - 5.2%
