Bootcamp Flashcards
the static relationship between the incising or masticating surfaces of the maxillary and mandibular teeth
occlusion
____ is the way teeth are shaped; ____ is the way teeth fit together
morphology; occlusion
the tightest or best fit between maxillary and mandibular posterior teeth
MI
Is CR affected by malocclusion?
NO
A relationship between the teeth that is irrespective of tooth position or vertical dimension:
CR
What position do we use when mounting diagnostic casts of our patients teeth?
CR
What determines centric relation?
Ligaments NOT teeth!
fibrocartilage present between the mandible and elements of articular eminence:
articular disc
retrodiscal tissue is ____ to the mandible:
posterior
If CR and MIP DO NOT exist together, this is because there hast to be a:
prematurity or deflective occlusal contact
average plane established by the incisal and occlusal surfaces of the teeth:
occlusal plane
the anteroposterior (or mesiodistal) curvature of cusp tips of the teeth:
Curve of Spee
The mandibular curve of spee is _____
The maxillary curve of spee is ____
mandibular= concave
maxillary= convex
anteroposterior means:
front to back- anterior teeth to posterior teeth
the mediolateral curvature of the cusp tips of the teeth:
curve of wilson
the curve of Wilson is the ____ curvature of the cusp tips of the teeth
mediolateral
the curve of Wilson spans from the:
right to the left side of the arch
side-to-side curve:
front-to-back curve:
curve of Wilson
curve of spee
the curve of Wilson in the mandible can be described as:
concave
the curve of Wilson in the maxilla can be describe as:
convex
functional/working cusps are cusps that are:
centric
hold the vertical dimension of occlusion:
functional/working
functional/working cusps function in:
mastication
functional/working cusps come down in the ____ when they occlude
opposing tooth’s central fossae
The functional/working cusps of maxillary teeth:
lingual cusps
cusps that do not occlude in the central fossae of opposing teeth:
non-functional cusps
The non/functional cusps of maxillary teeth:
buccal cusps
the functional/working cusps of the mandibular teeth:
buccal cusps
The non-functional cusps of the mandibular teeth:
lingual cusps
working/functional cusps occlude in the ___ of opposing teeth
central fossae
orthodontic classifications used on the locations of the maxillary and mandibular first molars
angles classifications
What is the ideal angles classification?
class 1
Angles class 2 and class 3 are considered:
malocclusion
The MB cusp tip of the maxillary 1st molar is aligned with the MB groove of the mandibular 1st molar:
Angles Class I
The maxillary canine fits in the facial embrasure between the mandibular canine and 1st premolar
Angles Class I
The resulting profile of angles class 1:
orthognathic
no protrusion or recursion of the mandible relative to the maxilla:
orthognathic
The MB cusp of the maxillary first molar is mesial to the MB groove of the mandibular first molar:
Angles Class 2
The resulting facial profile from an angles class 2 is:
retrognathic
The mandible is retruded relative to the maxilla:
angles class 2 (retrognathic)
Overbite:
angles class 2
The MB cusp of the maxillary 1st molar is distal to the MB groove of the mandibular 1st molar:
angles class 3
The facial profile resulting from angles class 3:
prognathic
The mandible protruded relative to the maxilla:
prognathic
underbite:
prognathic
Typically, anterior teeth are ____ inclined
labially
When you set teeth in a dentures course, you will set maxillary teeth with a:
10 degree labial inclination
Incisal edges of mandibular incisors should contact the ___ surface of maxillary incisors
lingual
The contact of the incsial edges of mandibular incisors contacting the lingual surfaces of the maxillary incisors should contact approximately ___ gingival to the incisal edge
4mm
for anterior teeth: class II division I results in:
deep bite (incisal edge of mandibular incisor is contacting the lingual cervical portion of the maxillary incisor
for anterior teeth: class II division II results in:
the typical class I contact being pushed up cervically
The most common result of the class 3 malocclusion in the anterior teeth:
end to end incisors
Class 3 malocclusion in the anterior teeth can cause end to end incisors but also:
under bites and open bites
a tooth that is overly erupted an dis abnormally long as a result:
supraeruption
Often the result of no functional contact between the tooth in question and a tooth in the opposing arch:
supraeruption
An abnormal twisting of the tooth:
torsiversion
A tooth that is out of alignment to the labial compared to the ideal arch
labioversion
Due to mesial drift of posterior teeth, anterior teeth can crowd. The result is overlapping teeth and abnormal contacts tooth to tooth.
crowding
Often seen in lower anterior teeth:
crowding
When a short primary tooth is retained into adulthood, its cementum can fuse to surrounding bone stopping its eruption
ankylosis
extractions of ____ teeth can be difficult
ankylosed
The distance between a selected point on the mandible and a selected point on the maxilla:
Occlusal Vertical Dimension (OVD)
When measuring OVD, we place the teeth in:
CR or MIP
The position of the mandible when all of the muscles that support it are completely at rest:
Physiological rest position
When in physiological rest position, there is typically a space between the maxillary and mandibular incisors, this space is called:
Interocclusal rest space
Interocclusal rest space is typically:
2-4mm
What are the major movements of the mandible that occurs in the opening process?
rotation & translation
rotation is a purely rotational movement where the body of the mandible:
rotates around a fixed horizontal axis line
purely rotational movements where the body of the mandible rotates around fixed horizontal axis line can be described as:
hinge-like movement
Where does rotation occur?
in the lower joint space of the TMJ
What occurs after rotation when the mouth has opened about halfway?
translation
During translation, the mandibular condyles and discs:
translate forward onto the articular eminences
Full movement of the mandible that moves the entire mandible down and forward which occurs in the upper joint space of the TMJ:
Translation
Type of movement that occurs in the LOWER JOINT SPACE:
rotation
Type of movement that occurs in the UPPER JOINT SPACE:
translation
Any movement of the mandible from MIP that results in tooth contact:
eccentric movement
Any movement of the mandible away from CR include:
protrusive movements
laterotrusive movements
retrusive movements
Protrusive, laterotrusive, and retrusive movements can all be considered:
eccentric movements
Movement that occurs when the mandible moves anteriorly:
protrusive movement
During a protrusive movement, BOTH anterior condyles and articular discs:
move forward in their fossa
During a protrusive movement, the slopes of the slopes of the articular eminences guide:
the mandible down and forward
The result of a protrusive movement in a class I occlusion is:
The incisors sitting end to end in relation to one another
