Quiz #3 Review Flashcards
Slide 2: PERMANENT MAXILLARY FIRST MOLARS: Facial Aspect
(Fill in the blank question)
Q: In the permanent Maxillary first molars, the cuspal ridges of the distofacial cusp meet at _______ (# degree) angle making it __________ ( broader or sharper) than the mesiofacial cusp tip.
A1: 90 degrees
A2: SHARPER
Slide 2: PERMANENT MAXILLARY FIRST MOLARS: Facial Aspect
(Fill in the blank question)
Q: In the permanent maxillary first molars, which cusp of the cuspal ridge meet at a 90 degree angle?
(distofacial cusp or mesiofacial cusp?)
A1: DISTOFACIAL cusp
Slide 3: PERMANENT MAXILLARY FIRST MOLARS: Facial Aspect
( Single answer looking for only 1 correct statement question)
Q: What is unique about the mesiofacial root of the permanent maxillary first molars?
A1: The mesiofacial root extends apically with a slight MESIAL curve for TWO-THIRDS of its length, then curves slightly back to the distal until it reaches the apex
Note: It is NOT shaped like a banana, and NOT straight to the apex.
Slide 4: PERMANENT MAXILLARY FIRST MOLARS: Lingual Aspect
(Class fill in the blank question)
Q: The cuspal ridges on the mesiolingual cusp meet at what angle at the cusp tip?
A1: WIDE OBTUSE ANGLE
Note: NOT at 90 degree or same angle cusp as cusp of Carabelli…. these options will be wrong answers on the exam!
Slide 5: PERMANENT MAXILLARY FIRST MOLARS: Distal Aspect
( Will ask for the INCORRECT answer)
Q: Which one of the following statement is incorrect?
A) The cusp of Carabelli is not visible from the distal view
B) The crown of this tooth is narrower in its distal half
C) The occlusal outlines of the mesiofacial and mesiolingual cusps will be seen extending occlusally beyond the outlines of the shorter distofacial and distolingual cusps
D) All 5 cusps are visible from this view
D) IS FALSE: Only FOUR of the five cusps are visible from the distal view.
– CAN NOT see the cusp of Carabelli.
SLIDE 6: PERMANENT MAXILLARY FIRST MOLARS: Distal Aspect
(Fill in the blank question)
Q: When observing the outline of the permanent maxillary first molars from the DISTAL view, most of this distal convergence takes place because?
A: The facial cervical ridge flattens out in the distal half of the tooth.
(It is therefore possible to see much of the facial surface when viewing the tooth from the distal aspect).
SLIDE 7: PERMANENT MAXILLARY FIRST MOLARS: Distal Aspect
(Multiple answer question, find the only correct one)
Q: The apex of the distofacial root lines up with what?
The tip of the MESIOFACIAL cusp
SLIDE 8: PERMANENT MAXILLARY FIRST MOLARS: Distal Aspect
(Multiple answer question, find all the correct answers)
Q: 1) The root surface depression is ____________ (shallow or very deep)
2) Root surface depression is \_\_\_\_\_\_\_\_\_\_\_\_ (consistently or inconsistently) seen on permanent maxillary first molars 3) Root surface depression extends from the \_\_\_\_\_\_\_\_\_\_\_\_\_\_ (apex, cervical or middle) third of the root across the cervical line into the \_\_\_\_\_\_\_\_\_\_\_\_\_\_ (apex, cervical or middle) third of the crown. 4) Calculus deposits are \_\_\_\_\_\_\_\_\_\_ (common or not common) as a result of this root depression. 5) The root surface depression encompasses \_\_\_\_\_\_\_\_\_\_ (a little or a lot) % of the entire faciolingual measurement,
A1) SHALLOW A2) CONSISTENTLY A3) CERVICAL ,CERVICAL A4) COMMON A5) A LITTLE %
—— most likely all the answers on his question will be TRUE for this question.
SLIDE 9: PERMANENT MAXILLARY FIRST MOLARS: Occlusal Aspect
(Cusp size listing question)
Q: List the cusps that are present on permanent maxillary first molars starting with the SMALLEST to LARGEST?
SMALLEST: CUSP OF CARABELLI
SLIDE 10: PERMANENT MAXILLARY FIRST MOLARS: Occlusal Aspect
(Multiple Multiple answer question)
Q: List the three ridges/grooves that are all on the same level (in depth) with one another.
1) The low point of the oblique ridge ( aka the transverse groove of the oblique ridge)
2) Mesial marginal ridge
3) Distal marginal ridge
SLIDE 11: PERMANENT MAXILLARY FIRST MOLARS: Occlusal Aspect
( Multiple answers, one answer will be incorrect)
Q: How many MAJOR fossae are present on the permanent maxillary first molars.
Q2: List the names of the major fossae.
Q3: Where are these fossae located (for each fossae, be specific)
Q4: The distal triangular fossa is a __________ ( minor or major) fossa on the tooth.
Q1: 2 MAJOR FOSSAE
Q2: CENTRAL FOSSA and DISTAL FOSSA
Q3: Located on either side of the mid-point of the oblique ridge.
- Central fossa: located in the center of the occlusal surface.
- Distal fossa: located on the distal side of the oblique ridge.
Q4: MINOR fossa
SLIDE 12: PERMANENT MAXILLARY SECOND MOLARS: Facial Aspect
Q: How is the facial groove different; in LENGTH and POSITIONED, compared to the permanent maxillary 1st molar?
Length: short or long
Positioned: more distally or mesially positioned.
1) SHORT
2) MORE DISTALLY POSITIONED
—NOTE:
Incorrect to say that it’s NOT PRESENT…. because the facial groove is PRESENT, just SHORT and MORE DISTALLY POSITIONED.
SLIDE 13: PERMANENT MAXILLARY SECOND MOLARS: Lingual Aspect
Q: The MESIAL cuspal ridge of the mesiolingual cusp meets the relatively straight mesial outline of the crown at what degree angle?
115 degree angle.
SLIDE 14: PERMANENT MAXILLARY SECOND MOLARS: Mesial Aspect
Q: From the mesial aspect of the permanent maxillary second molars, list the three of the four cusp tips that can be seen from this view.
1) MESIOLINGUAL
2) MESIOFACIAL
3) DISTOFACIAL
(ML, MF, DF)
— NOTE:
WHAT CAN NOT BE SEEN:
DISTOLINGUAL CUSP
CUSP OF CARABELLI ( does not exist on permanent maxillary 2nd molars)
SLIDE 15: PERMANENT MAXILLARY SECOND MOLARS: Distal Aspect
(Fill in the blank kind of question)
Q: From the DISTAL aspect of the permanent maxillary second molars, the tip of the mesiolingual and distolingual cusps are lined up with each other and slightly _______________ (facially or lingually positioned) when compared to the apex of the ______________ (facial or lingual) root.
A1: FACIALLY POSITIONED
A2: apex of the LINGUAL ROOT.
