Dental Anatomy/Occlusion
only mx tooth with 1 opposing counterpart
Maxillary third molar
The cusps of the mn arch have a pen and draw a line on the mx arch during protrusive movement, in which direction does the arrow that is drawn point?
Mesially
moving the mandible forward in an anterior=posterior plane
protrusion
movement of the jaw towards the side of the mandible move towards
Working (laterotrusive) movement
Supporting/functional cusps on the mandibular arch?
Buccal
The cusps of the mx arch have a pen and draw a line on the mn arch during protrusive movement, in which direction does the arrow that is drawn point?
Distally
The DistalBuccal cusp of the mx 1st molar overlaps the ___________________ groove of the mandibular fist molar
Distofacial groove
True or False The maxillary arch is narrower than the mandibular?
FALSE (it is generally wider)
the contact between the maxillary central incisors is in the _________ 1/3
Incisal
supporting functional cusps on the maxillary arch?
Lingaul
in which direction would the Buccal cusps of the mandible travel on the Mx arch in a LEFT lateral Non working movement?
Lingually and mesial
The maxillary arch is ___________ (longer or shorter) than the mandibular arch
Longer
only mandibular tooth with 1 opposing counterpart
Mn central incisor
In which direction would the arrow point on the right MN arch, if we are doing right lateral working movement? (Hint: this is the path of the lingual cusps of the MX)
Straight lingually
True or False The lingual cusps of the maxillary 2nd pm and the DL of the maxillary molars contact the counterparts distal marginal ridge and the mesial marginal ridge of the tooth DISTAL to the counterpart except 1st premolar 3rd molar
True
True or False the lingual cusp of the maxillary 1st pm and the DL cusp of the mx 3rd molar contact 1 marginal ridge?
True
Guiding/non-functional/shearing cusps of the mx?
buccal
in which direction would the lingual cusps of the maxillary teeth travel on the mn arch in a right lateral Non working movement?
buccal and distal
Every maxillary tooth is more _____________ than its opposing counterpart
distal
The maxillary premolar buccal cusps and distalbuccal cusps of the molars overlap the __________________ between the counterpart and the tooth __________________ to it EXCEPT the ____________________ and _______________ molars
embrasure Distal Maxillary 1st molar Maxillary 3rd molar (DB only overlaps one tooth)
the contact between the mx 1st pm and the mx 2nd pm is ___________
junction
the contact between the mx 2nd pm and the first molar is at the _____________
junction
the contact between the maxillary central incisors and the laterals is in at the ________________
junction of I and M
the contact between the mx laterals and the canines is at the ____________________
junction of I and M
Guiding/non-functional/shearing cusps of the mn?
lingual
The arch that moves
mandible
the contact between maxillary molars is in the ____________
middle
The contact between the mx canine and the 1pm is located __________________
middle 1/3
movement NOT the side that the mandible moves toward
non-working mediotrusive movement
moving the mandible backwards in and anterior posterior plane
retursion
In which direction would the arrow point on the right MX arch, if we are doing right lateral working movement? (Hint: this is the path of the Buccal cusps of the mn)
straight buccally