Orthodontic Assistant Practice Exam
Questions With 100% Verified Answers
Orthodontics is the dental specialty that deals with - answer✔the growth and development of the
jaws and face
The condition in which the mandible is located ahead of the maxilla is called -
answer✔prognathism
The best way to motivate adolescents toward good oral hygiene habits is by - answer✔relating to
social acceptance and appearance
Removal of bands may be accomplished with - answer✔anterior band slitting pliers
A headgear appliance is worn - answer✔as the orthodontist prescribes
A positioner is worn - answer✔after the removal of fixed appliances
In placing TP springs, an important consideration is - answer✔to place them from the lingual
surface
The instrument of choice in ligating an archwire is a - answer✔ligature-tying pliers
Direct bracket bonding is advantage because the procedure - answer✔allows the dentist less
clinical chair time
The attachment either welded or soldered to the bands that secure the archwire is the -
answer✔bracket
Brass separators are removed by - answer✔cutting opposite the pigtail with ligature cutters
What instrument is used to place elastic separators? - answer✔Elastic separating pliers
The patient should be instructed to clean his or her retainer - answer✔after each meal
Cephalometry is - answer✔taking measurements of the skull
Cephalometric tracings are made over - answer✔extraoral radiographs
The cephalometric headplate taken most often is the - answer✔lateral skull headplate
An open bite refers to a condition wherein - answer✔the anterior teeth do not contact
Overjet is the - answer✔horizontal distance between maxillary and mandibular teeth
A type of measuring device commonly used to take intraoral measurments is a (an) -
answer✔flexible millimeter ruler
When seating and sizing bands using a band pusher type of instrument, it is necessary to
maintain control by - answer✔establishing a stable fulcrum before applying pressure
Class III malocclusion is - answer✔a protruded position of the mandible in relation to the
maxilla
Vertical overbite refers to the - answer✔vertical overlap of the incisal edges of maxillary and
mandibular anterior teeth
Class II maloclussion is - answer✔retruded position of the mandible in relation to the maxilla
The head-stabilizing device used in cephalometrics is called a (an) - answer✔cephalostat
During cementation of bands, the cement is placed - answer✔on all surfaces within the band
The attachment of anterior plastic brackets directly to teeth can be accomplished by -
answer✔acid etch bonding
Cervical anchorage (headgear) is an - answer✔appliance that exerts distal forces on maxillary
teeth
After active orthodontic treatment is finished , what appliance is used to stabilize the teeth? -
answer✔A retainer
When determining the length of a preformed archwire, you measure the distance from -
answer✔first molar to first molar
In the removal of an archwire - answer✔ligature ties, then the archwire, are removed one side at
a time from the buccal tube
The most common type of removable retainer is a - answer✔Hawley retainer
What is used to tie the archwire onto orthodontic brackets? - answer✔Ligature wire
When removing separators, care must be taken to - answer✔avoid injuring the interdental
papillae
A useful instrument for removing elastic separators is - answer✔a sickle scaler
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Brainbarter. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $10.49. You're not tied to anything after your purchase.
