Here is a listing of the most commonly used appliances,
We have included a photo of the appliances which you can view by clicking on the links

Removable Appliances

Hawley Retainer
Wraparound Retainer
Invisible Retainer
Spring Aligner
Spring Aligner 3x3
Inman Aligner
Flipper

Fixed Appliances

Arnold Expander
W arch
Haas Expander
Pendex/Pendulum
Quad Helix
RPE
Lower RPE
Habit Fence
Habit Rake
Bluegrass
Unilateral Space Maintainer
Bilateral Space Maintainer
6x6 Holdong Arch
Bonded 3x3
Distal Shoe
Distal Jet
TPA
Nance Holding Arch
Herbst

Functional Appliances

Bionator
Orthopedic Corrector
Schwartz
Saggital
Nord
Twin Block

Splints and Mouthguards

Full Contact Splint
Gelb Splint
Tanner Splint
Hard Mouthguard
Soft Mouthguard
Hard/Soft Mouthguard
Anterior Splint
Sports Moutguard