Quiz #4 Flashcards
Permanent Mandibular First Molar: Facial Aspect - Does the deep depression between the roots cross the cervical line?
No, Gandalf is there!
Permanent Mandibular First Molar: Facial Aspect - The two roots are positioned _____ and _____. The roots of the mandibular first molar are usually ____ and more______ than those of the mandibular second or third molar.
- mesially and distally
- longer and more divergent
Permanent Mandibular First Molar: Occlusal Aspect - The ______ cusp is the most facially placed and the ______ cusp is the most mesially placed cusp on the tooth
- distofacial
- mesiolingual
Permanent Mandibular First Molar: Occlusal Aspect - The _____ cusp is the most distally located cusp
-distal
Permanent Mandibular First Molar: Distal Aspect - The ______ cusp exclusively comprises the distal contact area, which is also slightly _____ to the faciolingual vertical bisector of the crown
- distal
- facial
Permanent Mandibular First Molar: Facial Aspect - The ____ cusp comprises a very small part of the total mesiodistal width of the facial surface because most of the cusp is _____ to the distofacial line angle placing it on the distal aspect of the tooth.
- distal
- lingual
Permanent Mandibular First Molar: Facial Aspect - There is a pit present at the terminus that commonly requires restoration that is termed “_____” or “______” pit
facial or buccal
Permanent Mandibular First Molar: Distal Aspect - Both the distal and the distofacial cusp tips are _____ to the apices of the mesial and distal roots
-facial
Permanent Mandibular Second Molar: Occlusal Aspect - The _____ groove and the _____ groove meet the central groove at _____ angles dividing the occlusal surface into mesial and distal halves. These three major grooves present a structure which is said to be a “___” or “____” design
- facial
- lingual
- right
- ”+”
- “cross”
Permanent Mandibular First Molar: Distal Aspect - The facial outline of the distal cusp is located _____ to the facial outline of the taller distofacial cusp with the entire ______cusp superimposed onto the distofacial cusp
- lingual
- distal
Permanent Mandibular Second Molar: Facial Aspect - There is ____ facial groove, called the facial (or buccal) groove and it divides the mesiofacial and distofacial ducsp, ending in a distinct facial (buccal) pit in the ______ third of the crown
- one
- middle
Permanent Mandibular First Molar: Facial Aspect - The root trunk on the facial aspect measures _____ mm. There is a deep depression between the roots that becomes progressively more _____ as it extends occultly from the bifurcation to the cervial line.
- 3.0 mm
- shallow
Permanent Mandibular First Molar: Mesial Aspect - Since the mesial cusps are ______ than the distal cusps on the tooth, _______ of the occlusal surface can be viewed.
- taller
- very little
Permanent Mandibular First Molar: Facial Aspect - The mesiofacial groove is ______ than the distofacial groove and extends from the occlusal margin of the facial surface and terminates about ________ to the cervical line ending in a slight depression that extends ______ from the terminus of the groove.
- shorter
- half way
- laterally
Permanent Mandibular First Molar: Mesial Aspect - The greatest curvature of the facial outline is at the ______ third of the crown and is termed the ______ ridge. The crest is ______ occlusally when compared to the cervical ridges found on maxillary molars but (is or is not) still in the cervical third.
- Cervical
- cervical
- higher
- is
Permanent Mandibular First Molar: Occlusal Aspect - Arrange the cusp in order from largest to smallest
- MF
- ML
- DL
- DF
- Distal
Permanent Mandibular First Molar: Lingual Aspect - When measured on the lingual, the total tooth length is ______ because the roots are measured from the cervical line to the apex
- greater
Permanent Mandibular Third Molar: Facial Aspect - The two facial cusp variety ends in a facial pit, approximately in the ______ third of the surface, usually exhibiting decay because it is difficult for the patient to clean in this area of the mouth
-middle
Permanent Mandibular Second Molar: Occlusal Aspect - Each cusp has mesial and distal cruspal ridges extending laterally, as well as a triangular ridge that extends ______ the central fossa. On most specimen the triangular ridges meet to form two _____ ridges.
- towards
- transverse
Permanent Mandibular First Molar: Lingual Aspect - The cervical line is positioned approximately ____ mm _____ on the lingual surface than on the facial surface so the root trunk measurement will also be ____ mm longer(average of 4mm) from the cervical line to bifurcation on the lingual aspect of the tooth.
- 1.0 mm
- higher
- 1.0 mm
Permanent Mandibular First Molar: Mesial Aspect - The angulation of the triangular ridge of the mesiolingual cusp is approximately _____ degrees in relation to the mesial marginal ridge
30 degrees
Permanent Mandibular First Molar: Mesial aspect- The mesial crown outline is ______ shaped
rhomboidal
Permanent Mandibular Second Molar: Occlusal Aspect - The lateral ends of the central groove are in the ____ and _____ TRIANGULAR fossae and each end has a respective mesial and distal TRIANGULAR pit
- Mesial
- Distal
Permanent Mandibular First Molar: Facial Aspect - The distal cusp tip is (more or less) pointed that either the mesiofacial or distofacial cusp
more pointed
Permanent Mandibular Second Molar: Occlusal Aspect - The ______ forms where the facial, lingual and central grooves meet and is located on the ______ half of the crown.
- central pit
- lingual
Permanent Mandibular Second Molar: Mesial Aspect - The tip of the mesiofacial cusp is close to the vertical _______ long axis bisector than to the greatest facial outline of the crown
faciolingual- in other words it is close to the middle of the tooth than to the facial outline
Permanent Mandibular Second Molar: Facial Aspect - The facial groove is ____ except for a slight _____ inclination at the facial pit and is located slightly _____ to the vertical line dividing the crown in half, mesiodistally
- vertical
- mesially
- distal
Permanent Mandibular Third Molar: Occlusal Aspect - The crown is _____ mesiodistally than it is facioligually
-wider
Permanent Mandibular First Molar: Facial Aspect - The distofacial cusp has cusp ridges that give rise to a (more or less) pointed cusp tip that the mesiofacial cusp, but the cusp tip is still _____
- more
- rounded
Permanent Mandibular First Molar: Facial Aspect - The cuspal ridges of the mesiofacial cusp meet at an angle that is almost ______
flat
Permanent Mandibular Third Molar: Mesial Aspect - The central groove is positioned ______ to the faciolingual long axis bisector
lingual
Permanent Mandibular Second Molar: Occlusal Aspect - The tips of both facial cusps, especially the _______ cusp, are located ______ lingually from the facial outline of the crown than the tips of the lingual cusps in relation to the lingual outline
- mesiofacial
- farther
Permanent Mandibular Second Molar- Occlusal Aspect- What three grooves meet at right angles diving the occlusal surface into mesial and distal halves, or a “+” design?
- facial groove
- lingual groove
- central groove
