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Dental Histology
Chapter 16 Permanent Anterior Teeth
Term | Definition |
---|---|
What is the function of the anterior teeth? | Biting, Tearing, Support lips of the face, and speech. |
How many lobes do all anterior teeth have? | Four developmental lobes. |
How many labial lobes do all anterior teeth have? | Three lobes ML and DL. |
How many lingual lobes do all anterior teeth have? | One lingual lobe. |
The masticatory surface of the anterior teeth is called? | incisal surface |
For anterior teeth the height of contour for both crowns labial and lingual surfaces is? | The cervical third. |
The curvature of the anteriors is ___ than that of the posteriors? | Greater |
A raised, rounded area on the cervical third of the lingual surface is? | a cingulum. |
Ridges on the lingual surface of anteriors is bordered mesially and distally on each side by a rounded, raised border known as what? | Marginal Ridges |
A shallow, wide depression on the lingual surface. | Fossa |
In the deepest part of each fossa is a pit known as? | Developmental Pits |
A sharp, deep, V-shaped depression on the lingual surface that marks the junction among the developmental lobes? | Primary/ Developmental groove |
A shallow, irregular linear depression on the lingual surface? | secondary/ supplemental groove |
The maxillary central incisors erupt at what age? | 7-8 |
When does the maxillary central incisors root complete? | Age 10 |
What is the maxillary central incisors crown shape? | Triangular |
What is the most prominent tooth in the permanent dentition? | Maxillary Central Incisors |
What is avulsion? | displacement of the tooth from the socket due to trauma. |
When do the maxillary lateral incisors erupt? | 8-9 years |
When do the roots complete on the maxillary lateral incisors? | age 11 |
What is the shape of the maxillary lateral incisors? | Round |
What age do the mandibular central incisors erupt? | 6-7 years |
When does the root complete on the mandibular central incisors? | age 9 |
What is the smallest tooth? | mandibular central incisors. |
What is the first tooth to erupt? | The mandibular central incisors. |
How many pulp horns do the mandibular central incisors have? | 3 pulp horns. |
When do the mandibular lateral incisors erupt? | 7-8 years |
When do the roots complete on the mandibular lateral incisors? | Age 10 |
What are some developmental disturbances for the incisors? | Peg laterals, tuberlces, dilaceration. |
What age does the maxillary canine erupt? | 11-12 |
When does the root complete on the maxillary canine? | 13-15 years |
What type of root does the maxillary canine have? | Blunt Root Apex |
When does the mandibular canine erupt? | 9-10 years |
What age does the root complete formation? | 12-14 years. |
The roots of the anterior teeth curve? | Distally. |
Clinical considerations for canine teeth? | Impacted canine, dilaceration. |