Occlusion & Restorative Dentistry 2 Flashcards
what is a functional cusp?
Cusps that OCCLUDE with the opposing teeth in the ICP
what is a non functional cusp?
cusps that DO NOT occlude with the opposing teeth in ICP
on what surfaces are functional cusps found?
Maxillary posteriors - Lingual Cusps
Mandibular posteriors - Buccal Cusps
on what surfaces are non-functional cusps found?
Maxillary posteriors - Buccal Cusps
Mandibular posteriors - Lingual Cusps
what is canine guidance?
When the mandible moves to the working side and theres ONLY CONTACT between the canines. Posterior teeth arent in contact
what is canine guidance?
When the mandible moves to the working side and theres ONLY CONTACT between the canines. Posterior teeth arent in contact
what is canine guidance?
When the mandible moves to the working side and theres ONLY CONTACT between the canines. Posterior teeth arent in contact
what is canine guidance?
When the mandible moves to the working side and theres ONLY CONTACT between the canines. Posterior teeth arent in contact
what is canine guidance?
When the mandible moves to the working side and theres ONLY CONTACT between the canines. Posterior teeth arent in contact
Known as MUTUALLY PROTECTED OCCLUSION
[gold standard occlusion]
what is group function?
when mandible moves to the working side, MULTIPLE TEETH in contact on the left
What is an occlusal interference?
something that causes undesirable tooth contacts that may produce mandibular deviation during closure to icp/may hinder smooth passage to and from icp
why are posterior contacts during protrusion bad?
- teeth designed to absorb heavy forces down long axis of tooth
- not designed to absorb significant lateral forces
leads to
occlusal trauma & undesirable tooth movements
why are posterior contacts during protrusion bad?
- teeth designed to absorb heavy forces down long axis of tooth
- not designed to absorb significant lateral forces
leads to
occlusal trauma & undesirable tooth movements
what are clinical signs & symptoms of bruxism?
- tooth wear
- fractured restorations
- tooth migration & mobility
- muscle pain & fatigue
- headache and earache
- pain and stiffness in TMJ and surrounding muscles
what is known as occlusal trauma?
- injury resulting in tissue changes within attachment apparatus (including PDL, alveolar bone, cementum) as a result of occlusal forces
