Denture Occlusion Flashcards
The position of the mandible in which the condyles are in the most superior and anterior position in the articular fossae, resting against the posterior slopes of the articular eminences with the articular discs interposed.
Centric Relation
Used as the reference position on which the casts are articulated•It is used because it can be verified and it is repeatable•It is a jaw position and it is independent of teeth position
Centric Relation
The postural position of the mandible when an individual is resting comfortably in an upright position and the associated muscles are in a state of minimal contractual activity.
Physiologic Rest Position (other terms: Rest Vertical Dimension, Postural position)
The distance between 2 selected anatomic or marked points when in maximal intercuspal position
Occlusal vertical dimension
The distance between the Rest Vertical Dimension and the Occlusal Vertical Dimension.
Interocclusal Space (free-way space)
The average plane established by the incisal and occlusal surfaces of the teeth
Plane of occlusion
Orients the maxilla to the rotational axis in three planes•Using it will result in the path of opening (arc/path of opening) on the articulator being the same as the mandible has with the TMJ •Changes to the OVD can be made on the articulator if a face-bow record was used (and the casts have been articulated in CR)
Facebow
The static relationship between the incising and masticating surfaces of the maxillary and mandibular teeth or tooth analogues.
Occlusion (definition)
The static and dynamic contact relationship between occlusal surfaces of teeth during function.
Articulation (definition)
Goals of _____•Minimize trauma to supporting structures•Preserve/maintain remaining structures•Promote stability of the dentures•Improve speech and esthetics•Restore mastication to a reasonable level
Occlusion for Removable Complete Prosthodontics
What are the 3 types of occlusion used in CRM?
Monoplane, lingualized, balanced
an occlusal arrangement where the posterior teeth have masticatory surfaces that lack any cuspalheight•Posterior teeth do NOT have cusps •Teeth are arranged on a flat plane
Monoplane occlusion
Occlusal plane is parallel to the mandibular ridges and not related to the TMJ anatomy•Occlusal plane is completely flat; there is no curve of Speeor Wilson •No vertical overlap of anterior teeth •Patients will have to conform to a vertical pattern of mastication
Monoplane occlusion
Occlusal forces are centralized over the ridges and lack of cuspalinclines results in a more forgiving occlusal scheme•Provides the patient more freedom in mandibular movements•Simpler technique in arranging prosthetic teeth and making occlusal adjustments
Monoplane occlusion
Indications•Severely resorbed ridges•Skeletal class II, III jaw relations and crossbites
Monoplane occlusion
Least esthetic scheme and limiting on the arrangement of anterior teeth•Difficulty in food penetration (cusplessteeth)???•Instability of prostheses in excursive movements and possibly in CR???
Monoplane occlusion
In excursive movements with monoplane occlusion: posterior teeth on the working side are ______
contacting
In excursive movements with monoplane occlusion: posterior teeth on the non-working side are ______
Not contacting
Cuspless mandibular posterior teeth arranged on a flat plane •Only maxillary lingual cusps are in occlusion with central fossae areas of mandposterior teeth •All the advantages of the monoplane occlusion and improved esthetics
Lingualized, non-balanced Occlusion
In _____ occlusion, Lingual cusps of maxillary posterior teeth are occluding with central fossae areas of mandibular posterior teeth (bilaterally)
Lingualized, non-balanced Occlusion
Bilateral simultaneous occlusal contacts of the anterior and posterior teeth in excursive movements.
Balanced Occlusion
The anterior-posterior and mesio-lingual curvature of occluding surfaces and incisal edges of artificial teeth used to develop balanced occlusion
Compensating curve
_____ vertical overlap is easier for balanced occlusion
Increased vertical overlap
Increased vertical overlap will lead to an _____ anterior guidance angle
Increased
Increased horizontal overlap will lead to an _____ anterior guidance angle
Decreased
_____ the anterior guidance angle will facilitate establishing balanced occlusion
Decreasing
If you had to re-set bite, which cast must be remounted?
Mandibular
How do you check speaking space?
S-sounds
Which occlusion sets teeth with the curve of spee and wilson?
Balanced
Which occlusion sets teeth on a flat plane; not much of a ridge
Monoplane occlusion
What are the 5 parts to Hanau’s quint?
Compensating curve, condylar guidance, incisal guidane, occlusal plane, cuspal inclination
Which of the 5 part of Hanau’s quint can’t be changed by dentist?
Condylar guidance
Does the degree of teeth determine type of occlusion?
No
Degreed teeth describes the ___ of the ____ teeth
Slope of posterior teeth
If the teeth are over opened, how is the IOD affected?
Inadequate IOD
If the teeth are over closed, how is the IOD affected?
Too much IOD
The amx anterior teeth should be _____ mm from incisive papilla
8-10mm
