“C” Clasps are most commonly used where the use of another type of clasp would create a significant occlusal interference. Eliminating an unwanted occlusal interference is important for two reasons. In children, an occlusal interference can cause them to abnormally shift their mandible. In adults, these interferences usually lead to poor compliance as biting on the clasps is very uncomfortable.

To make this clasp more retentive, it is usually used in conjunction with a composite buccal button. This composite undercut will allow the clasp to snap into position.