Parafunctional habits, nightguards, and root form implants.

Occlusal schemes and designs of fixed and removable implant prostheses must satisfy requirements for the innocuous vertical loading of root form implants. Parafunctional habits (clenching, bruxing, or engaging) can transmit forces to the supporting bone that may result in destructive lateral stresses and overloading. Most nocturnal parafunctional habits can be ameliorated by acrylic resin nightguards.