Dental Assistant - Tooth Morphology Questions And Answers With 100% Correct Answers
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Course
Dental Assistant - Tooth Morphology
Institution
Dental Assistant - Tooth Morphology
canines (cuspids) - 2 pairs in anterior corners of mouth, responsible for holding, tearing, and
piercing (also have the longest roots)
Premolars - The teeth immediately behind the canines; used in chewing, grinding, and shearing
food. The bicuspid teeth
Molars - Back teeth that grind food; loca...
Dental Assistant - Tooth Morphology
canines (cuspids) - 2 pairs in anterior corners of mouth, responsible for holding, tearing, and
piercing (also have the longest roots)
Premolars - The teeth immediately behind the canines; used in chewing, grinding, and shearing
food. The bicuspid teeth
Molars - Back teeth that grind food; located nearest the TMJ joint
five surfaces of teeth - 1. Labial-buccal-facial
2. lingual
3. distal
4. mesial
5. incisal-occlusal
Functions of teeth - mastication (chewing), speech, aesthetics, the integrity of alveolar bone, the
integrity of dental arches
Mastication - chewing
alveolar bone - bone that supports and encases the roots of teeth
Two dental arches - maxillary arch and mandibular arch
Maxilla - upper jaw
Mandible - lower jaw; the only moveable bone in the skull
, temporomandibular joint (TMJ) - The temporomandibular joint is a ball and socket joint that
allows the mandible to move to talk, chew, swallow, yawn
Midline - An imaginary line drawn down the center of the face and head, dividing it into right and
left halves.
quadrant - Dentition divided into four (contain the same number and types of teeth)
Quadrant one - Right maxillary
Quadrant two - Left maxillary
Quadrant three - Left mandibular
Quadrant four - Right mandibular
occlusion - relationship between the maxillary (upper) and mandibular (lower) dental arches and
the positioning of individual teeth
Two dentitions - primary (baby) and permanent (adult)
Mixed dentition - A mixture of permanent teeth and primary teeth that occurs until all primary
teeth have been lost, usually between the ages of 6 and 12.
Primary (deciduous) dentition - The first set of 20 primary teeth
Dentition - Natural teeth in the dental arch
Anatomy - the science dealing with the structure of animals and plants
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