DEF Ch. 15

• An Intraoral device used to widen maxilla suture area is a:

  palatal expander
• Selective removal of tooth tissue to provide interproximal space for tooth movement is:

  reduction
• The classification type of malocclusion that displays a projected mandible is:

  Class 3
• A large x-ray of the head area used to obtain bone measurement is a:

  cephalometric x-ray
• Which type of headgear traction device is placed around the patient's neck?

  cervical
• Situation where the anterior teeth do not contact with each other or no contact exists between the maxillary and mandibular posterior teeth is:

  open bite
• An Intraoral device used as a traction post instead of extraoral headgear is:

  temporary anchor (TAD)
• To change a tooth position to a more upright direction is an example of:

  tipping
• Correction of bad habits or carious conditions is an example of which type of orthodontics?

  preventive
• An increase of the horizontal distance between incisal edges of central incisors is called:

  overjet
• Teeth affected by ectopic eruption are:

  malpositioned
• The class of malocclusion that is signified by a protrusive maxillary jaw is:

  Class 2 distoclusion
• Congenital factors for malocclusion are:

  present at birth
• A corrective treatment device cemented directly on the tooth surface is a/an:

  bracket
• Which of the following is not considered a force or power device?

  tubes
• Which devices are placed between teeth to make space for placement of bands:

  separators
• A mandibular bar cemented from cuspid to cuspid on the tongue side of the teeth is a/an:

  lingual retainer
• Application of appliances and auxiliaries to improve occlusion is which form of orthodontics?

  corrective
• A bracket or a band is considered which type of orthodontic appliance?

  intraoral
• A removable plastic custom fit tray to be worn over the teeth during sports participation is:

  mouth guard
• A condition of normal jaw position but malpositioned teeth is termed:

  class 1 neutroclusion