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Chapter 27 Dental Assisting
orthodontics
36
Dentistry
Professional
11/14/2012

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Term
Activator
Definition
orthopedic appliance that widens the maxillary arch
Term
angle's classifcation
Definition
system used to classify malocclusion
Term
Arch wires
Definition
wires used to apply force to move or hold teeth  in desired position.
Term
Brackets
Definition
divices attached to the teeth to hold the arch wire in place and transmit the force of the arch wire to move the tooth.
Term
Buccak tubes
Definition
small cylinders of metal welded to the molar bands providing a means of attachment for the arch wire to the band in the posterior area
Term
buccoversion
Definition
a tooth that is tipped toward the lip or cheek
Term
corrective orthodontics
Definition
the improvement of orthodontic problems
Term
deposition
Definition
teeth are retained in position
Term
distoversion
Definition
tooth is distal to normal position
Term
elastics
Definition
rubber bands or elastic threads, often used between the upper and lower arches to provide force for movement
Term
fixed appliances
Definition
appliances attached to the teeth that cannot be removed by the patient.
Term
head gear
Definition
orthodontic appliance composed of a strap that goes behind the patient's head or neck and a facebow that attaches to the buccal tubes on the molar bands;applies force to move teeth, restrain or alter facial bone growth, and reinforce the stability of intraoral appliances
Term
infraversion
Definition
tooth is positioned below the normal line of occlusion
Term
interceptive
Definition
prevention and treatment of orthodontics problems
Term
labioversion
Definition
a tooth that is tipped toward the lip or cheek
Term
ligature wire
Definition
a thin flexible wire that holds the arch wire to the brackets
Term
linguoversion
Definition
tooth is lingual to normal position
Term
malocclusion
Definition
any deviation from normal occlusion; may be a missing tooth, a group of teeth or an entire arch
Term
mesioversion
Definition
tooth is mesial to normal position
Term
normal occlusion
Definition
term that describes the contact relationship of the mandibular arch with the maxillary arch
Term
orthodontic bands
Definition
stainless steel bands fitted around teeth to hold and control tooth movement
Term
osteoblasts
Definition
bone-forming cells
Term
osteoclasts
Definition
dissolve and reabsorb the calcium salts of the bone matrix when bone is stressed or damaged
Term
overbite
Definition
projection of the upper teeth over the lower
Term
plastic rings
Definition
also called elastic ties, are small bands that are used to hold the arch wire to the brackets
Term
preventive
Definition
orthodontic treatment to eliminate problems that may disrupt normal development of the teeth and facial structures
Term
removable appliances
Definition
devices inserted into the mouth and removed by the patient
Term
resorption
Definition
the body's process of removing bone
Term
separators
Definition
placed in the contact areas between teeth, forcing teeth to spread apart to accommodate the orthodontic bands.
Term
space maintainer
Definition
device (fixed or removable) designed to hold space until the permanent tooth erupts
Term
springs
Definition
specially bent or shaped wires attached to the main arch wire; used to exert pressure on the teeth
Term
supraversion
Definition
tooth extends above the normal line of occlusion
Term
tooth positioner
Definition
a flexible or soft-plastic appliance that surrounds the crowns of all teeth.
Term
torsoversion
Definition
tooth is rotated or turned
Term
transposition
Definition
tooth is in the wrong order in the arch
Term
transversion
Definition
tooth is in the wrong order in the arch
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