click below
click below
Normal Size Small Size show me how
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 |