MN DASL EXAM 1 (ORTHO {53}, TEMP CROWNS {32}, X-RAY {88}) Exam Questions Correct Answers New Update (A+ Pass)
What is the technical term for braces? - Answers -Orthodontic fixed appliances
What is the most common type of x-ray in orthodontics? - Answers -Cephalometric (side profile)
How ma...
MN DASL EXAM 1 (ORTHO {53}, TEMP
CROWNS {32}, X-RAY {88}) Exam
Questions Correct Answers New Update
(A+ Pass)
What is the technical term for braces? - Answers -Orthodontic fixed appliances
What is the most common type of x-ray in orthodontics? - Answers -Cephalometric (side
profile)
How many photographs are taken in a orthodontic PT record? - Answers -5 total.
2 extraoral and 3 intraoral
What material is used for diagnostic casts in orthodontics? - Answers -Plaster
What are the 2 views used to analyse a patient? - Answers -Frontal and Profile
Define Bilateral Symmetry: - Answers -This is the goal for orthodontic treatment that will
improve facial symmetry by correcting disproportions.
What is an LDA's main role with ortho patients? - Answers -To educate the patient
about the treatment.
Name the 3 orthodontic classes: - Answers -Class 1: Neutrocclusion
Class 2: Mesiocclusion
Class 3: Distocclusion
What holds arch wires in place? - Answers -Ligature ties - these can be metal or
elastomeric
What length (mm) should you cut wire ligatures? - Answers -3-4mm
Once a ligature wire is tied and cut, the tail is tucked toward the ________________
area and into the _______________________ space? - Answers -1. Gingival
2. Interproximal
Wire ligatures are cut on the non-______________ side. The ___________ is used to
grab the tail and remove it. - Answers -1. Twisted
2. Hemostat
What is the term referring to brackets with spot welded hooks for the attachment of
elastics? - Answers -Kobayashi hooks
, Which instruments are used when single/chain elastic ties (1) placed and (2) removed?
- Answers -1. Hemostat
2. Scaler
What are the 3 main orthodontic retainers? - Answers -1. Positioner
2. Hawley
3. Lingual
Describe a Orthodontic positioner retainer: - Answers -Custom piece that is made of
rubber and fits over the patients dentition after ortho treatment.
Describe a Hawley retainer: - Answers -Removable retainer worn to retain the teeth in
their new position after braces have been removed.
*most common*
Describe a Lingual retainer: - Answers -A FIXED metal appliance that runs on the
lingual side of the dentition and typically runs canine-to-canine.
What would be a reason to NOT use a vacuum formed retainer after orthodontic
treatment? - Answers -LOW patient compliance
LDA's CAN/CANNOT attach prefit and pre-adjust orthodontic appliances? - Answers -
CAN (under direct supervision)
In MN, a LDA CAN/CANNOT attach a lingual retainer? - Answers -CAN
Orthodontic separators are used _______________ placing bands? - Answers -Before
What are the 2 main methods of separation used for the posterior teeth? - Answers -1.
Separating springs
2. Elastomeric separators
Criteria for placing an elastomeric separator is that they circle around
the_______________ area? - Answers -Contact
What type of instrument is used to place elastic separators? - Answers -Separating
pliers
What other dental material/instrument can be used to place elastic separators? -
Answers -Floss
What motion is used when placing elastic separators? - Answers -See-saw motion
Which instrument is used to remove elastic separators? - Answers -U15 scaler
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