Intro to Orthodontics

what is orthodontics

the treatment of irregularities in the teeth, especially of alignment and occlusion, and jaws

what are the 3 components of orthodontic appliances

1. Wire

2. Acrylic

3. Add ons

   • Screws

   • Springs

   • Bands

   • Pontics

What is a pontic

A fake tooth

What are 3 facts about stainless steel in ortho

1. help retain removable appliances

2. form springs to move teeth

3. used to manufacture bands, brackets, wires, screws, mini implants

What does the 18% of chromium do for stainless steel wires

decreases tarnish or corrosion

What are some shapes of wires

• round

• rectangular/square

• braided

• twisted

• half round

what is the diameter of wire measured in

thousandths of an inch or millimeters

What are some rules of wire bending

• Make most of the bends with your wrists, not fingers

• Hold onto both ends of the wire while cutting

What is a Bird Beak (139 pliers) used for

acute, gradual bends

you place the wire closer to the tip of the pliers for a _______ diameter making a ______ bend

smaller, tighter

you place the wire farther from the tip for a ______ diameter making a ______ bend

larger, looser

sag bends

used to make larger diameter bends

3 prong (139 Pliers)

used for 0-90 degree bends without nicking

hug bend

one prong towards you, two prongs away

kick bend

one prong away, two towards you

chatter hug

series of bends with one prong towards you, two away

chatter kick

series of bends with one prong away from you, two prongs towards you

wires that cross do what 2 things?

1. push new section of wire toward existing wire

2. exaggerator bend to make wires flush with one another