Occlusal Scheme
Pronunciation: oh-KLOO-zul SKEEM
The designed pattern of tooth or prosthetic contacts during jaw closure and lateral excursions that distributes occlusal forces across implant-supported restorations.
Full Definition
An occlusal scheme in the context of dental implantology refers to the deliberate arrangement of cuspal contacts, guidance pathways, and load distribution across implant-supported prostheses. Because implants lack the proprioceptive feedback of the periodontal ligament, occlusal schemes for implant restorations differ from those applied to natural dentition; they are typically designed to minimise lateral (non-axial) forces and reduce peak loads on individual implants. Common schemes employed with implants include mutually protected occlusion, lingualized occlusion (for complete-arch cases), and group function. Editors should not confuse 'occlusal scheme' with 'occlusal loading,' which refers to the application of force, and should verify that the specific scheme is named correctly when referenced in clinical literature.
Usage
Usage note: Specify the type of occlusal scheme (e.g., mutually protected, group function, lingualized) rather than using the term generically; 'occlusal scheme' alone is non-specific in clinical manuscripts.
In Context
- "A mutually protected occlusal scheme was prescribed to minimise lateral stress on the single-unit implant restoration in the canine position." — Prosthodontic treatment plan
- "The review highlighted the lack of consensus on the optimal occlusal scheme for full-arch implant-supported fixed prostheses." — Systematic review article