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DHO Chapter 18

Dental Assistant Skills

TermDefinition
Crown Section of the tooth that is visible in the mouth
root section of the tooth below the gums or gingiva
cervix the neck, between the enamel of of crown and the cemtenum of root
dentin tissue under enamel & makes up most of tooth
pulp softest tissue located in the innermost area of tooth. Nerves & blood vessels. Makes dentin
periodontium supports teeth, upper & lower jawbone, gums, ligaments
alveolar process maxilla - upper jaw bone + sockets for teeth
alveoli sockets for teeth
periodontal ligaments connective tissue between cementum and jaw bones
gingiva gums, epithelial tissue
free gingiva surrounds cervix of tooth but is not attached to tooth.
dental floss cleans the free gingiva space
Apex Tip of the root of the tooth
Apical foramen Opening through which nerves and blood vessels enter the root of the tooth
Enamel Hardest tissue in the body, covers the outside of the crown
Cementum Hard, bonelike tissue that covers the outside of the root
Incisors teeth in the front center of the mouth, used to cut food
Cuspids Canine teeth, used to tear food, located at angles of lips, longest teeth
Bicuspids Premolars, located before molars, used to pulverize or grind food
Molars Teeth in the back of the mouth, largest and strongest, used to grind food
Primary/deciduous teeth First set of teeth
20 the total number of deciduous teeth
Maxillary teeth Teeth in the sockets, alveoli, of the maxilla, or upper jaw bone
Mandibular teeth Teeth in the alveoli of the lower jawbone
Permanent/Succedaneous teeth Second set of teeth
32 the total number of teeth in a permanent dentition
Universal/National Numbering Method An abbreviated form for identifying the teeth; A-T for primary & 1-32 for permanent
Labial Teeth with crown surface near the lips
Lingual Teeth with crown surface near tongue
Occlusal Biting surface of the teeth
Mesial Teeth toward the midline of the mouth
Buccal Teeth next to face or cheek
Line angles Form where two corwn surfaces meet
Point angles Form where three crown surfaces meet
Cuspidor Bowl or cup that can be used to allow the patient to spit out particles and water
Halitosis Bad breath
Alginate Irreversible hydrocolloid impression material
Carpules Glass cartridges that contain premeasured amounts of anesthetic solutions
radiolucent Areas that appear dark on x-rays
Radiopaque Areas that appear light or white on x-rays
Bitewings Xrays which show only the crowns of the teeth
Periapical films Show the tooth and the surrounding area, and can show root-end infection
Child films Smaller xrays films use don children to show disease or other conditions
Panoramic Special film for xrays that shows the entire dental arch
Federation Dentaire International Numbering System uses a two-digit numbering system in which the first number represents a tooth's quadrant and the second number represents the number of the tooth from the midline of the face.
Dentition set of teeth;includes primary, mixed and permanent
Created by: mrsdancona