Lab 4 Bends Flashcards

1
Q

17x25 TMA is usually satisfactory, but if there are any torque changes to be made in the wire, it is best to use a?

A

19X25 TMA in a 0.022 slot

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2
Q
  • In-out bends
  • Buccolingual/labiolingual
  • Rotational movement
A

First order bends

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3
Q
  • Tip bends
  • Mesiodistal movements
A

Second order bends

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4
Q

Torque

A

Third order bends

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5
Q

Horizontal change relative to line of occlusion.

A

1st order bends

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6
Q

Affect expansion or contraction (e.g., use it to correct crossbite)

A

1st order bends

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7
Q

Help in derotation.

A

1st order bends

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8
Q

First order bend in between premolar and molar is known as?

A

Anti-rotation or Toe-in bend

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9
Q

First order bends are? (4)

A
  • Lateral inset
  • Canine eminence
  • Molar offset
  • Antirotation bends
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10
Q

First order special plier?

A

Hammerhead pliers (step pliers)

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11
Q

Used to make bends in various “step heights” (1mm, .75mm, .5mm, .25mm)

A

Hammerhead pliers

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12
Q

If step pliers are used, steps can be quickly, efficiently, and easily bent on ______ wires.

A

NiTi

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13
Q

Bends in the occluso-gingival direction to maintain the final angulation of teeth.

A

2nd order bends

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14
Q

Represents vertical change.

A

2nd order bends

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15
Q
  • In incisal area, they provide ideal angulation of teeth.
  • In posterior area, they maintain distal tipping and cause bite opening.
A

2nd order bends

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16
Q

Used in:
- paralleling roots adjacent to extraction spaces
- setting up posterior anchorage
- artistically positioning of teeth

A

2nd order bends

17
Q

3 types of second order bends?

A
  • tip back bends
  • V bends
  • artistic positioning bends
18
Q

An upward and downward bend, used for preparing anchorage in posterior segment.

A

Tip back bends

19
Q

Tip back bends are usually placed between, which tooth #?

A

5-6 & 6-7

20
Q

Tip back bends should be at least?

A

20 degrees

21
Q

Used to obtain axial changes in the bucco-lingual / labio-lingual root and crown axis.

A

3rd order bends

22
Q

Involves twisting of wires.

A

3rd order bends

23
Q

What are the 2 types of torque?

A

1) Bucco-lingual root torque
2) Bucco-lingual crown torque

24
Q

These are usually used in pairs to give individual labial or lingual torque to make 3rd order bends.

A

Rose torquing pliers