Occlusal Splint
A removable hard or soft acrylic appliance worn over the teeth to manage occlusal loading, bruxism-related wear, or temporomandibular dysfunction.
Full Definition
An occlusal splint (also called a stabilisation splint or Michigan splint) is a custom-fabricated removable device that covers the occlusal and incisal surfaces of the upper or lower dental arch. It is used to redistribute occlusal forces, protect tooth surfaces, and reduce masticatory muscle activity in patients with parafunctional habits or TMD. Editors must note that 'splint', 'guard', and 'appliance' are used variably in clinical writing; 'occlusal splint' is the preferred formal term in most guidelines. It should not be conflated with an 'occlusal night guard', which is a colloquial or commercial descriptor.
Usage
Usage note: Prefer 'occlusal splint' over 'night guard' or 'bite guard' in formal clinical documentation. 'Stabilisation splint' is acceptable in specialist periodontic/prosthodontic contexts.
In Context
- "A maxillary occlusal splint was fitted to protect the remaining tooth structure from further attrition." — Restorative dentistry treatment record
- "The patient was reviewed six weeks after delivery of the occlusal splint, reporting a reduction in morning jaw pain." — TMD clinic follow-up note