Orthodontic Appliances and Accessories Flashcards

What is the primary purpose of orthodontic spacers (separators)?

Answer: To create space between teeth for molar bands

Orthodontic spacers are placed between back teeth to push them apart enough to fit the metal molar bands that anchor the braces.

What does a palatal expander do?

Answer: It widens the upper jaw to create more space for teeth

A palatal expander gradually widens the upper jaw by applying outward pressure to both halves of the palate, creating more room for properly aligned teeth.

What is the primary function of orthodontic elastics (rubber bands) during treatment?

Answer: To apply additional force to correct bite issues between upper and lower jaws

Orthodontic elastics connect upper and lower brackets to apply forces that correct bite problems such as overbites, underbites, and crossbites.

What is the main purpose of orthodontic headgear?

Answer: To control jaw growth and move back teeth into proper position

Orthodontic headgear applies external force to slow or redirect jaw growth and move molars backward, helping to correct severe bite problems.

What type of bite problem is a Herbst appliance most commonly used to treat?

Answer: Overbites caused by a lower jaw positioned too far back

The Herbst appliance holds the lower jaw in a forward position to stimulate growth and correct overbites caused by an underdeveloped or recessed lower jaw.

What is the main function of a lip bumper in orthodontic treatment?

Answer: To relieve lip and cheek pressure from front teeth and push molars backward

A lip bumper uses the natural pressure of the lips and cheeks against a bumper bar to push molars backward, creating space in a crowded dental arch.

What are orthodontic power chains primarily used for?

Answer: To close spaces between teeth during treatment

Power chains are continuous linked elastic rings placed along the archwire that apply steady pressure to close gaps between teeth.