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