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NHOH HM Manual Ch 7
NAVEDTRA 14295B Ch 7: Oral Anatomy and Physiology
Question | Answer |
---|---|
Dental development usually begins in which week of prenatal life? | Either 2 or 3 |
How many total tooth buds are present in the prenatal maxillary and mandibullar arch? | 10 |
What is the name of the last period of tooth growth? | Histodifferentiation |
How many years does it take permanent teeth to emerge after crown completion? | Three |
When primary teeth get ready to fall out and make way for the eruption of permanent teeth, what is the name of this process? | Exfoliation |
The part of the crown that is visible in the mouth is known by what term? | Clinical crown |
What is the name of the region where the roots separate? | Furcation |
The tip of each root is known by what term? | Apex |
When there is a slight indentation that encircles the tooth and marks the junction of the crown with the root, it is known by what term? | Cervical line |
Enamel is formed by what type of epithelial cells? | Ameloblasts |
What is the chief function of the pulp? | Formation of dentin |
What portion of the maxilla and mandible are teeth embedded? | Alveolar process |
When viewed by a radiograph, the trabecular bone will have what type of an appearance? | Web-like |
A tooth is suspended in its socket by what ligament? | Periodontal |
The oral mucosa consists of how many total types of mucosa? | Three |
The hard palate is covered with what type of mucosa? | Masticatory |
What is the term given to the portion of gingiva that extends from the gingival crest to the crest of the bone? | Unattached gingiva |
What area is the first to show symptoms of gingivitis? | Gingival margin |
What area prevents food from packing between the teeth? | Interdental papilla |
What type of tissue is found on the inside of the lips, cheeks, vestibule, soft palate, and under the tongue? | Lining mucosa |
How many dental quadrants are in the mouth? | Four |
How many primary teeth are there in a normal deciduous mouth? | 20 |
What reasons affect how teeth are formed? | Cutting Tearing Grinding |
What type of shape does the lingual surface of an incisor have? | Shovel |
Cuspids are designed to perform what type of function? | Cutting and tearing |
What is the name of the system that is used by the armed forces to identify teeth? | Universal numbering |
Primary teeth are identified by which letters of the alphabet? | A to T |
The mesial surface of a tooth is located in which area? | Closest to midline of the arch |
The distal surface of a tooth is located in which area? | Away from the midline of the arch |
A tooth has how many proximal surfaces? | Two |
The inter-proximal space is occupied by what type of anatomy? | Interdental papilla |
The anteroposterior curve is referred to by what term? | Curve of Spee |
If a patient’s profile is characterized as “normal,” it is a class ___ Angle. | I (ONE) |
The mesial margin of a maxillary central incisor meets the incisal edge at almost what degree angle? | 90 |
What are the first permanent teeth to erupt? | Mandibular central incisor |
What is the term used to describe the appearance of a mandibular first bicuspid? | Bell-crowned |
What tooth will have a fifth cusp on it? | Mandibular first molar |
What dental anatomy has a rounded or angular depression of varying sizes found on the surface of a tooth? | Fossa |
What is the name of the dental anatomy that has small, rounded projections of enamel from the incisal edges of newly erupted anterior teeth? | Mamelons |