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DA Chapter 9

DA Chapter 9 FINAL Tooth Morphology

How many teeth are in the deciduous dentition? 20
The surface of the tooth that is away from the midline is? Distal
Three bulges on the incisal edge of the newly erupted central incisor are? Mamelons
Except for the third molar, the maxillary tooth that has the most anomalies is the? Lateral
The cusp on the mandibular second molar that is normally the smallest is the? Disto-Lingual
The cusp on the mesial lingual surface of the permanent maxillary first molar is the? Cusp of Carabelli
The permanent teeth that replace the primary teeth are called what? Succedaneous
The number of molars in a permanent dentition is? 12
When there are 2 roots on a single tooth, they are said to be? Bifurcated
A convex area on the lingual surface of the anterior teeth, near the gingiva is called the? Cingulum
T/F The anterior sexant is made from the six front teeth. True
T/F The area between the apical third of the root and the cervical third of the root is called the middle third of the root. True
T/F A development groove that has an imperfect union where the lobes join is called a fissure. True
T/F A convex surface means that the surface is recessed. False
T/F A marginal ridge is an elevated area of enamel that forms the mesial and distal borders of the occlusal surface of the posterior teeth. True
The surface that is towards the midline is called? Mesial
The surface that is away from the midline is called? Distal
The anatomical crown portion of the tooth covered with? Enamel
The anatomical root is the portion of the tooth covered with? Cementum
The primary dentition consists of? Central, Lateral, Canine, 1st and 2nd Molars
These teeth are used to pulverize food... Pre molar
These teeth are used for the chewing process... Molar
The teeth that are farthest from the midline? 3rd molar
There are ____ posterior sextants an arch. 2
The area on the crown of the tooth that is closest to the incisal edge on the anterior tooth is called the? Incisal Third
The area on the crown of the tooth between the incisal third and the cervical third is called the? Middle third
Define Midline... Maxillary Mandibular Imaginary line dividing the arches in half
Define Quadrant... Imaginary line dividing into 4 quads
Define Maxillary... upper arch
Define Mandibular... lower arch
The primary first molar is replaced by an adult... pre molar
By what age is the last primary tooth exfoliated? 12
What age group has a mixed detention? 6-12
What tooth has a non functioning lingual cusp? The mandibular 1st pre-molar
Which pre-molar has 2 roots? Maxillary 1st pre-molar

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