Facebow Flashcards
What are the types of restorative materials for teeth?
Amalgam, Composite, Gold, and Ceramics
Poor esthetics, Weakening of teeth, Recurrent caries, No adhesive bonding, sensitivity, brittle, wastewater pollution with mercury are some of the concerns about ______?
amalgams
White plastic filling materials that are normally polymerized by a visible light
dental composite
_____ typically consists of a resin-based oligomer matrix, such as a bisphenol A-glycidyl methacrylate (BISGMA) or urethane dimethacrylate (UDMA), and an inorganic filler such as silicon dioxide (silica); Compositions vary widely, with proprietary mixes of resins forming the matrix, as well as engineered filler glasses and glass ceramics.
dental composite
Aesthetics, strengthens bonding, more conservative, less expensive, and reduced mercury are some of the advantages of _______?
dental composite
Shrinkage and secondary caries, less durability, more skill required, surface must be dry, and more time and more expensive are the disadvantages of _____?
dental composite
_____ allows the dentist to use dental composites to teeth to change shape , color or contour
Bonding
PFM refers to what kind of restoration?
Palladium fused to metal
On a porcelain prep, a layer of opaque porcelain is placed first to bond to the _____ layer
Oxide layer
Broad range of indications, Excellent clinical performance, Accepted metal alternative, Less tooth reduction required, Thinner coping thicknesses, and Shaded coping options offer improved esthetics are advantages of _____
High strength ceramics
____ is made up of silica, lithium oxide, alumina, potassium oxide, and phosphorus pentoxide
Lithium Disilicate
What are 3 examples of tooth replacements?
Complete dentures, partial dentures, and fixed bridges and single teeth
What is the goal with tooth replacements?
Restore the missing teeth to function and esthetics
Prosthesis replacing teeth in partially dentate arch; designed to be removed by the patient
Removable partial denture
Loss of bone in the maxilla and the mandible results in _______ for the facial muscles.
loss of muscle attachments
For abutments for dental implants, how much working attachment above the gingival level is desired?
1.5 mm
What are the 3 points we want to capture using the articulator and facebow?
Axis of rotation, plane of occlusion, and Frankfurt’s horizontal plane
A hypothetical line through the two mandibular condyles around which the mandible may rotate.
Hinge Axis
The hinge axis of the facebow is how far from the external auditory meatus in what direction?
10mm anterior
On the facebow and articulator, the ____ axis is most important to understand and find
Transverse axis
_______ can be measured and transferred to the articulator as the condylar angle
Protrusive movement
An imaginary surface which is related anatomically to the cranium and which theoretically touches the incisal edges of the incisors and the tips of the occluding surfaces of the posterior teeth. It is not a plane in the true sense of the word but represents the mean of the curvature of the surface.
Plane of Occlusion
a plane used in craniometry that is determined the highest point on the upper margin of the opening of each external auditory canal and the low point on the lower margin of the left orbit and that is used to orient a human skull or head usually so that the plane is horizontal.
Frankfort Horizontal plane:
The protrusive inclination and lateral wings of the guide table should be set at
0 degrees
The incisal pin is set at ______
zero (darkest line)
What should the bennet angle be set to?
0 degrees
What should the condylar guidance angle be set to?
30 degrees
Where should the orbitale indicator be set on the patient?
Intra-orbital foramen
Is the camper’s line the same are Frankfurt’s horizontal plane?
No
Imaginary line running from the inferior border of the ala of the nose to the superior border of the tragus of the ear; establishes the posterior occlusal plane of the artificial teeth of the denture
Camper’s line
The ala-tragus line is _____ with the plane of occlusion and is used in complete denture construction to help find the plane of occlusion
parallel
What is the fashion of how the mandibular cast should be seated on the maxillary cast?
Maximum intercuspation
