Wire, Brackets, Aligners

Question 1

1. What were the first arch wires used in leveling and aligning?

Answer 1

1. Nickel Titanium

Question 2

2. What shape of wire is used to level the curve of Spee?

Answer 2

2. Reverse curve

Question 3

3. Ligature ties are a bendable material. They are used as co ties.

Answer 3

1. True/True

Question 4

4. What type of wire is used for torque?

Answer 4

rectangular

Question 5

5. After a canine exposure, what material can you use to tie to a gold chain?

Answer 5

4. Zing String

Question 6

6. What type of material is used to hold space that we like?

Answer 6

Closed coil spring

Question 7

7. Which material is used for space closure?

Answer 7

power chain

Question 8

8. If you engage the power chain to the distal bracket the teeth will rotate in what direction?

Answer 8

mesial

Question 9

9. What kind of tie is used to add an elastic to a hook that does not have a bracket?

Answer 9

Kobi tie

Question 10

T/F Using a combination of Ni-ti wire overtop stainless to bring a tooth into the arch is called “Piggyback”

Answer 10

true

Question 11

What are bite turbos used for in orthodontics?

Answer 11

ALL OF THE ABOVE ***
1. Helps to open the bite in a deep bite case
2. Helps to jump a cross bite
3. Can help to intrude teeth from biting into the turbo
4. All of the above.

Question 12

. What makes it possible for nickel-titanium arch wires to exhibit super elastic behavior?

Answer 12

2. This behavior is based on a reversible transformation between the austenitic and martensitic phases

Question 13

A wire with a low load/deflection rate is capable of generating constant forces that do not depend much on the amount of activation. Bending loops into an arch wire reduces its load/deflection rate by increasing the wire length.

Answer 13

BOTH TRUE

Question 14

A wire extending from the molars to incisors is activated to intrude the incisors. What is the side effect on the molars?

Answer 14

C. Molars tip distally & extrude

Question 15

What is another term for Power Tubing?

Answer 15

BUMPER TUBING

Question 16

What type of elastics should not be used on a high mandibular plane angle patient?

Answer 16

4. Class II elastics

Question 17

What type of elastic wire is often used for a peg lateral?

Answer 17

Coil Spring

Question 18

What is an example of an orthodontic auxiliary?

Answer 18

1. Elastic thread
2. Power tubing
3. Coil spring
   All of the above

Question 19

T/F: you can remove brackets off of a pt that is not technically yours

Answer 19

true

Question 20

T/F: With every force, there is an opposite and equal reaction, which needs an adequate amount of space. There needs to be transverse movement first, before anterior and posterior movement

Answer 20

true

Question 21

If you want to move a mesially rotated maxillary 1st premolar, what tooth would you tie the power chain to? Which way would that tooth rotate?

Answer 21

1. Canine, to the distal

Question 22

Which ortho wire material would be the best choice for a patient with nickel allergy

Answer 22

beta titanium

Question 23

T/F - Tads can be used alongside other orthodontic appliances.

Answer 23

true

Question 24

How many millimeters is one turn in expansion?

Answer 24

.25mm

Question 25

What is the primary mechanism of action for the Herbst appliance in correcting a Class II malocclusion?

Answer 25

advance the mandible forward

Question 26

How much force is required to move the maxilla?

Answer 26

500g

Question 27

Which orthodontic appliance(s) are used to correct anteriorposterior skeletal discrepancies?

Answer 27

Headgear Herbs Appliance

Question 28

Which of the following orthodontic appliances is considered a palatal expander?

Answer 28

Quad Helix

Question 29

Doubling the force applied at the bracket of a tooth would have what effect on the rotational tendency during tooth movement?

Answer 29

3. The moment would double.

Question 30

The Herbst appliance is used in the correction of which malocclusion?

Answer 30

Class II

Question 31

What is the role of the lower Lingual arch space maintainer?

Answer 31

holds position of lower 6s

Question 32

The nature of the bond between the enamel and the resin used to attach an orthodontic bracket is ______.

Answer 32

mechanical

Question 33

Use of elastics with good patient cooperation provides the clinician with the ability to correct what discrepancies?

Answer 33

both

Question 34

What are the effects of class II elastics?

Answer 34

all of the above (* lower incisor flaring * Steepening of occlusal plane * Upper incisor & lower 1st molar extrusion )

Question 35

The photograph shows a maxillary fixed bilateral space maintainer. This type of space maintainer is also known as a _____________. (B) If both primary canines were present, which of the following space maintainers could be used in place of this appliance that cannot be used in this case?

Answer 35

A = nance B = band and loop bilateral

Question 36

Which of the following teeth is most likely to not erupt into the arch due to overcrowding?

Answer 36

second premolars

Question 37

A distal shoe appliance is classified as what kind of appliance?

Answer 37

unilateral fixed

Question 38

What is the ideal space maintainer to prevent lingual movement if there is premature loss of the mandibular primary canines?

Answer 38

lingual arch

Question 39

An 8-year-old boy came to orthodntic OPD for orthodontic evaluation. On clinical examination, the orthodontist observed that he has a severe anterior open bite and bilateral maxillary constriction. Upon inquiring, the mother said that the boy had a thumb sucking habit. He has permanent incisors and molars and deciduous canines and 1st and 2nd pre-molars in both arches.

Answer 39

quad helix

Question 40

True/False: Herbst appliance uses a piston and tube device to passively push the maxilla forward as the patient closes. (False – it pushes the mandible forward)

Answer 40

false

Question 41

True/False: The best space maintainer is the primary tooth itself?

Answer 41

true

Question 42

T/F: Some advantages of using Rectangular Arch Wires are to control crown & rootu movement.

Answer 42

true

Question 43

Which of the following is NOT a type of palatal expander?

Answer 43

lingual arch appliance

Question 44

12. T/F: The most posterior, inferior point on the gonial angle at the junction of the body of the mandible and ramus is GONION

Answer 44

true

Question 45

T/F: Patients can be allergic to wire made from Nickel or with Nickel covering. Symptoms include inflammation, itching, or mild irritation.

Answer 45

true, true

Question 46

A headgear appliance is used for :

Answer 46

both anchorage and traction

Question 47

which of the following has not been proven to be a causative factor in human oro-facial clefting?

Answer 47

tylenol

Question 48

All of the following are advantages of the indirect method of bonding brackets to a tooth over the direct method EXCEPT one. Which one is the EXCEPTION?

Answer 48

less technique sensitive

Question 49

Which of the following metals is commonly used to make orthodontic wires because of its resilient properties and flexibility?

Answer 49

stainless steel

Question 50

All of the following can tie to a hook, button or bracket to bring a tooth into the arch except:

Answer 50

power tubing

Question 51

What type of hooks are placed prior to orthognathic surgery for post-surgical elastics?

Answer 51

crimpable hooks

Question 52

What is a potential side effect from using CS2000 springs?

Answer 52

flare teeth

Question 53

What wires are also known as TMA?

Answer 53

beta titanium

Question 54

Which of the following is a goal of using a rapid palatal expander (RPE) in orthodontics?

Answer 54

To achieve skeletal separation of the mid-palatal suture

Question 55

T/F: The line joining the ORBITALE and GONION is known as the “Frankfort Plane”.

Answer 55

false (orbitale and porion)