tooth morphology Flashcards
what are the succadaneous teeth
the following permanent teeth: incisors canines and premolars they are called so because they take the place of their former predecessors
what is the first permanent tooth that emerges in the presence of primary teeth
Permanent first molar (aka 6year molar)
the crown of primary maxillary 1st molar resembles that of
permanent premolars
the roots of primary maxillary molars resemble that of
permanent maxillary molars -in that they have 3.
what primary tooth is unique because it has a crown form unlike any permanent tooth
primary mandibular first molar
which primary tooth has the longest root compared to the rest of primary teeth
Primary maxillary canine
what ridge connects the cingulum to the cusp tip in the primary maxillary canine in the lingual ascpect
LINGUAL RIDGE.
which of the primary teeth has a straight incisal edge
mandibular central incisor
what primary tooth has an incisal ridge that slopes down distally
primary mandibular lateral incisors
which of the following primary teeth have thick necks maxillary or mandibular canines
mandibular canines
in a buccal aspect of primary first maxillary molars, which root is the longest
medial buccal root
what is the nlmost prominent cusp on a primary maxillary 1st molar
mesiolingual cusp
Primary maxillary 1st molar is particularly distinguished from other teeth by
a pronounced convexity on the buccal outline of the cervical third
The primary maxillary 2nd molar has characteristics resembling what permanent tooth
permanent maxillary 1st molar
cusp of carabelli is foung on which primary tooth,which tooth has 5 cusps
Primary maxillary 2nd molar
A severe, potentially life-threatening allergic reaction.
anaphylaxis
which of the primary teeh وحيد القرن،in that it does not resemble any of the other teeth, primary or permanent.
primary mandibular 1st molar
what teeth are the only neighboring teeth in the dental arches with mesial surfaces in contact
the max and mand CI
which permanent tooth may show considerable variance in its crown form
maxillary lateral incisor
which permanent teeth show few instances of malformation or anomalies
mandibular central incisors
which permanent tooth tends to be fairly symmetrical
mandibular central incisor
which permanent teeth are referred to as the CORNERSTONES of dental arches
permanent maxillary and mandibular canines
they are very valuable teeth. when conseudered either as units of the natural dental arches or as possible assistants in stabilizing replacements of lost teeth in prosthetic procedures
permanent max and mand canines
when permanent teeth are lost ,which teeth are usually the last to go
permanent canines
what are the most stable permanent teeth in the mouth and why
CANINES,The self-cleaning qualities of the canines; their smooth, pointed shape; the thickness of their crowns; and their strong anchorage
aa prominence on the surface of the superior maxillary bone caused by the socket of the canine tooth
canine eminence
this tooth seems to be a compromise in the change from anterior to posterior teeth
permanent CANINES
a variation in the form of what tooth causes bifurcated roots
perrmanent mandibular canine
the root of which permanent tooth narrows mesially
permanent mandibular canine
the root of which permanent tooth narrows mesially
permanent mandibular canine
canines may be also referred to as
cuspids
premolars may be also reffered to as (when appropriate) by
bicuspids
which possesses a sharper cusp, 2st or 1st premolar
1st premolar has a sharper cusp tip than 2nd premolar( remember who is closer to the canine)
which permanent teeth resemble the canines ehen viewed buccally
MAXILLARY premolars
which perm tooth acts as a prehensile (tearing tooth)much like the canine
max and mand FIRST premolars
which perm teeth are more effeicient as grinding teeth (they function more like molars)
max and man SECOND premolars
when premolars have 2 roost ,in what position are they placed
buccally and lingually
the crown of the permanent maxillary first premolar has what shape BUCCALLY
trapezoidal
the crown of the permanent maxillary 1st premolars has what shape LINGUALLY
spheroidal( has circular symmetry)
what shape does the crown of a permanent maxillary premolar from an occlusal aspect take
hexagonal
which is larger in size , maxillary first premolar or maxillary second premolar
maxillary first premolar
what is the most obvious difference between max 1st and 2nd premolars
turn the tooth over to the lingual(palatal) surface, if the lingual cusp is longer then we have a max second premolar if it is shorter than the buccal cusp then it s a max first premolar
Difference between max 1st and 2nd premolar roots
1st premolar usually has 2 roots unlike 2nd premolar, ALSO the developmental depression is found on the mesial surface of the max 1st premolar root while on the max 2nd premolar root, it is found distally
which has a more rounded or ovale occlusal shape, max first or second premolar
max second premolar
which has a wrinkled occlusal view because of the several supplementary grooves radiating from the central groove
maxillary second premolar
maxillary premolars and mandibular 1st premolar develop from how many lobes
4
MANDIBULAR 2nd premolar develops from how many lobes
5 (just like its notation according to palmer)
which premolars fail to conform the implications of the term bicuspid
mandibular premolars
which is the largest of the two maxillary premolars
maxillary first premolar
which is the largest of the two mandibular premolars
mandibular second premolar
How many cusps does the mandibular second premolar have, order them form largest to smalles
3 cusps from largest to smallest : buccal cusp,mesiolingual. distolingual
mesiolingual dev dep is found on which permanent tooth
mandibular first premolar
which tooth has a square shaped occlusal view
mandibular second premolar
these teeth assist the mandibular molars in performing the major in the mastication and comminution of food
maxillary molars
which of the three roots of the maxillary molars is the largest
the LINGUAL root
is the perm first molar a succadaneous tooth
no because it erupts posterior to the second deciduous molar, so it has no predecessor
which is the largest perm tooth in the maxillary arche
max FIRST molar
this cusp is found lingual to the mesiolungual cusp of the maxillary first molar
cusp of carabelli
which is the largest of the well developed cusps in the maxillary first molar
the mesiolingual cusp
order the roots of the maxillary first molar from largest to smallest
lingual , mesiobuccal, distobuccal
each mandibular molar has how many roots and in what position are they placed
2 roots, one mesial and one distal
thw crown of the mandibular molars are shorter in what respect than those of the teeth anterior to them
cervicoocclusally
difference in dimensions between max and mand molars
max molars are wider buccolingually than mesiodistally , the opp is true fir mandibular molars
name the cusps that are found on the buccal side of the mand first molar
mesiobuccal, distobuccal,and •distal• cusps
how many developmental grooves are there on the buccal sidee of 30 and what cusps do they separate
there are 2, the mesiobuccal DG which separates the mesiobuccal cusp from the distobuccal cusp, and the distobuccal DG which separates the distobuccal cusp from the DISTAL cusp
what is the name of the groove that separates the distobuccal cusp from the distak cusp on the buccal aspect of 30
distobuccal DG
on 31( mandibular right 2nd molar) how many cusps do we have
4 cusp , mesiobuccal ,distobuccal, mesiolingual,distolingual
how many grooves are found on the buccal aspect of 31
1 it is named the buccal DG
which permanent tooth has a cross-shaped pattern on the occlusal surface and why
mandibular 2nd molar,, when the buccal and lingual DGs join the central groove they form a cross shaped pattern
3 roots, 3 or 4 cusps, short crown, extreme convexoty mesiobuccally at the cervival third
primary maxillary 1st molar
2 roots, 5 cusps , resembles permanent 1st molar
primary mandibular 2nd molar
three roots, 5 cusps, resembles permanent 1st molar
primary maxillary 2nd molar
