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DA Chapter 9
DA Chapter 9 FINAL Tooth Morphology
Question | Answer |
---|---|
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 |