15 terms

ch 60

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Terms in this set (...)

arch wire
a contoured metal wire that provides force when teeth are guided in movement for orthodontics
auxiliary
attachments located on brackets and bands that hold arch wires and elastics in place
band
stainless steel ring attached to molars to hold the arch wire and auxiliaries and elastics in place for orthodontics
bracket
a small device bonded to teeth to hold the arch wire in place
cephalometric radiograph
an extraoral radiograph of the bones and tissues of the heat
crowding
condition that occurs when teeth are not properly aligned within the arch
distoclusion
a class ii malocclusion in which the mesiobuccal cusp of the maxilary first molar occludes mesial to the mesiobucal groove of the mandibular first molar
ectopic
an abnormal direction of tooth eruption
headgear
an external orthodontic appliance that is used to control growth and tooth movement
mesioclusion
term used for class iii malocclusion
open bite
a lack of vertical overlap of the maxillary incisors, creating an opening of the anterior teeth
orthodontics
specialty of dentistry designed to prevent, intercept, and correct skeletal and dental problems
overbite
increased vertical overlap of the maxillary incisor
retainer
an appliance used for maintaining the positions of the teeth and jaws after orthodontic treatment
separator
a device made from wire or elastic used to separate molars before fitting and placement of orthodontic bands