Removable Orthodontic Appliances- requirements of an ideal clasp
Clasps are the retentive components of a removable orthodontic appliance. There are several types of clasps used in orthodontic treatment.
Requirements for an ideal clasp
- Clasps should not apply any active pressure on the teeth. Active pressure causes tooth movements.
- Clasps should provide sufficient retention of the appliance.
- It should provide retention on fully as well partially erupted teeth.
- It should engage properly in shallow undercuts as well.
- It should be in close contact with the teeth.
- It should be easy to make.
- It should not interfere with the normal functions of the oral cavity such as speech, chewing and swallowing.
- It should not cause soft tissue trauma.
- It should not corrode.
- It should not break easily.