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What teeth make up the permanent anterior teeth?
- central incisors
- lateral incisors
- canines
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How many developmental lobes are in ALL permanent anterior teeth?
4
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Name the 4 developmental lobes in permanent anterior teeth
- distal labial lobe
- middle labial lobe
- mesial labial lobe
- lingual lobe
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outline the separations among the labial developmental lobes
labial developmental depressions
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Name the 2 labial developmental depressions
- distolabial developmental depressions
- mesiolabial developmental depressions
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What shape is the anterior tooth crown from the labial and lingual, and how many parallel sides does it hav?
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Where is the height of contour, or crest of curvature for the labial and lingual surfaces of anterior teeth?
cervical third
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Where is the contact area on most anterior teeth?
centered labiolingually on their proximal surfaces, and have a small surface area
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Is the cementoenamel junction curvature deeper/greater on anterior or posterior teeth
anterior
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raised rounded area on the cervical third of the lingual surface of all anterior teeth, and corresponds to the lingual developmental lobe
cingulum
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borders the lingual surface of anterior teeth on the mesial and distal sides, it is a rounded raised border
marginal ridge
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shallow wide depressions on the lingual surface of some anterior teeth
fossa
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depressions found on the deepest part of each fossa aparant on some teeth
developmental pits
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a primary groove, a sharp, deep, V-shaped linear depression that marks the junction among the developmental lobes
developmental groove
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secondary groove that may be found on the lingual surface of anterior, branch off of developmental grooves, and the more anterior the tooth, the fewer of these there are
supplemental groove
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anterior teeth usually have how many roots?
1
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Canines roots usually have a slight________inclination
distal
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eruption date of maxillary central incisors (8 and 9)
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Which teeth are widest mesial to distal and may have imbrication lines?
maxillary central incisors
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In telling left and right maxillary central incisors, the cingulum is off set to the _______
distal
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In telling right and left maxillary central incisors, which marginal ridge is longer?
mesial
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In telling right and left maxillary central incisors, which incisal angle is sharper?
mesioincisal angle
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The roots of maxillary central incisors have a _________apex
blunt
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Avulsion is a clinical consideration often seen in what teeth?
maxillary central incisors
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a clinical consideration, that is a space between teeth
diastema
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Where is a diastema usually found?
between maxillary central incisors
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Mesiodens and dwarfed roots are developmental disturbances often associated with which teeth?
maxillary central incisors
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What are the eruption dates of maxillary lateral incisors? (7 and 10)
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teeth whose crowns have the greatest degree of variation of form besides 3rd molars, and are often congenitally missing; is most likely describing
maxillary lateral incisors
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In telling max. lat. incisors apart, which incisal angle is sharper?
mesioincisal angle
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in telling max. lat. incisors apart, what surface has a deeper CEJ curve?
mesial surface
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in telling max. lat. incisors apart, which marginal ridge is longer?
mesial
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The roots of maxillary lateral incisors have a _________ apex
sharp
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Why are restorations often difficulr in max. lat. incisors?
because they come in such varying forms
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peg laterals, anodontia, tubercles, and dilaceration are developmental disturbances that will most often be seen in what teeth?
maxillary lateral incisors
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What are the eruption dates of mandibular central incisors?
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the most symmetrical teeth in the dentition would best describe?
mandibular central incisors
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Are the lateral or central mandibular incisors smaller?
central mandibular incisors
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Which anterior teeth have proximal root concavities?
mandibular central and lateral incisors
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lingual calc, attrition, and difficult instrumentation are all clinical considerations that would best describe what teeth?
- mandibular central incisors
- mandibular lateral incisors
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What anterior teeth often have accessory roots?
mandibular central incisors
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What are the eruption dates for the mandibular lateral incisors (23 and 26)?
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In telling the mand. cent. incisors apart, which angle is sharper?
mesioincisal
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In telling mand. cent. incisors apart, which surface has a higher/deeper CEJ curvature?
mesial surface
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In telling mand. lat. inc. apart, which marginal ridge is longer?
mesial marginal ridge
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in telling the mand. lat. inc. apart, the cingulum usually appears _________ displaced
cingulum
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mandibular central incisors have proximal concavities, but mandibular lateral incisors have _________ root concavities
distal
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true or false. Accessory roots may be found in mandibular lateral incisors, but it is rare
true
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Which of all the incisors in the mouth have a distally off set cingulum?
- maxillary centrals
- mandibular laterals
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small rounded projections of enamel from the incisal edges of newly erupted anterior teeth, the projections usually wear away soon after eruption
mamelons
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How many mamelons are seen on permanent incisors?
3
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attrition is commonly seen on what teeth?
permanent incisors, specifically the mandibulars
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which angle is sharper on permanent incisors?
mesioincisal
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In permanent incisors, the CEJ is more curved on which surface?
mesial
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the mesial contact of permanent incisors is on what tooth portion?
incisal third
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What teeth are the largest incisors?
maxillary central incisors
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more rounded facial surface, moure pronounced lingual surface, single simple root, and no root concavities is most likely describing what teeth?
maxillary permanent incisors
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is the most prominent tooth, widest tooth mesial to distal, has the greatest CEJ curve, and greatest height of contour (crest of curvature) in the whole dentition
Maxillary central incisors (8 and 9)
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true or false. Maxillary central incisors can have imbrication lines and perikymata
true
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On the maxillary central incisor, the incisal edge is slightly __________ to the long axis of the tooth
facial
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The maxillary lateral incisors resemble the _____ _____ _____
maxillary central incisors
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true or false. The maxillary lateral incisor root may curve slightly distal
true
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What tooth is the maxillary lateral incisor often mistaken as? But what is a great way to tell these two teeth apart?
- permenent mandibular canine
- maxillary lateral has no depressions on the proximal surface, which is common on mandibular canines
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How many pulp horns do lateral incisors usually have?
just 2, a more simple pulp cavity than centrals
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developmental depressions and imbrication lines on the labial surface are less common on which type of maxillary incisors?
lateral
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The crown of a lateral maxillary incisor is________than that of a central incisor, and less __________
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The distal outline is more rounded on which maxillary incisor?
lateral
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both incisal angles are more _______ on a lateral maxillary incisor than a central.
rounded
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The lingual surface of the maxillary lateral incisor is more ________ than the central, the cingulum is more _________ than the central, with a __________ lingual fossa
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Which maxillary incisor has more straight and pronounced marginal ridges?
lateral
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The lingual pit and linguogingival groove are __________ common on maxillary laterals then centrals, so it is very important to keep them clean
more
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The most common tooth to have partial anodontia is?
maxillary lateral incisor
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enamel pearls on groove area, common on maxillary lateral incisors
tubercles
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Which teeth are the smallest and most symmetrical in the dentition?
mandibular incisors
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maxillary incisors are wider ________-_____ and mandibular incisors are wider _________-_______
- mesial distal
- labial lingual
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The incisal edge of mandibular incisors is just __________ to the long axis of the root
lingual
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For mandibular incisors, the crown is ________on the labial and lingual surfaces, and _______on proximal surfaces
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How many pulp horns are in a mandibular central incisor?
3
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The crown of a mandibular central incisor is narrower on the _______than the _____
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Overall, the lingual surface of a mandibular central incisor surface is __________ and has a small, ____________ cingulum
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CEJ curves more on the _________ of mandibular central incisors
mesial
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true or false. Accessory roots can occur on the central mandibular incisors, and result with a facial and a lingual root
true
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The crown of which mandibular incisor may appear distally oriented?
lateral
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The mandibular lateral incisor has root concavities on the _________ surface
distal
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How many pulp horns are in mandibular central incisors?
3
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The cingulum of the mandibular lateral incisor is ________ __________
distally oriented
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