RG
Recommended height of a lower occlusal rim is:
18 mm
32. Recommended height of an maxillary occlusal rim is:
22 mm
The peripheral borders of maxillary major connectors should be located at least ______ away from gingival margins.
6 mm
The most effective way to achieve the smallest amount of residual monomer in heat cured acrylic is:
8 hours at 160° F.
Which is not a general guideline for placing a rest?
A clasp assembly never has a rest associated with it
Choose the correct definition of Retention
Ability to resist removal of the RPD in an occlusal direction
Models are articulated:
After being indexed and luted
Tissue stops are necessary because they:
Allow for an even thickness of impression material
Denture contouring is the process of:
Anatomically waxing the denture
The mandible and temporal bones are not directly in contact. What separates the mandible from the temporal bone?
Articular disc
The Synovial cavities are located:
As part of the TMJ
The slight side-shift of the mandible in the mandibular fossa is referred to as:
Bennett movement
The palatal strap major connector is most often used for ______ posterior toothborne partial dentures.
Bilateral
The theory of occlusion most used for dentures is:
Bilaterally balanced
Tooth and soft tissue survey lines are represented on the cast in ______.
Black
Mutually protected occlusion has posterior contacts in:
Centric
The rear most, upper most, midmost position of the mandible in the articular fossa is:
Centric relation
The mesiobuccal cusp of the maxillary first molar is in alignment with the mesiobuccal groove of the mandibular first molar in what type of occlusion?
Class I
Distoclusion describes a ___________ occlusion
Class II
The mesiobuccal cusp of the maxillary first molar in alignment with the embrasure of the mandibular second pre molar and first molar is:
Class II
The mesiobuccal cusp of the maxillary first molar in alignment with the embrasure of the mandibular second premolar and first molar is:
Class II
Custom trays can be made with:
Cold cure acrylic
The component on the articulator which reproduces the angle of mandibular movement is the:
Condylar guide assembly
The post palatal seal:
Creates a suction to hold dentures in place
Auto polymerizing, self -curing, and cold cure acrylic all mean the same thing; they:
Cure on a bench or in a pressure pot
Polymerization of the denture means:
Curing the denture base
The bilateral compensating curve in which molars are set is called:
Curve of Wilson
According to (cusp-fossa theory), cusps tips will not wear out because:
Cusp tips do not actually occlude with opposing dentition
A space is created between the maxillary and mandibular teeth when the muscles attached to mandible are relatively relaxed. This space is appropriately referred to as:
Free-way space
An articulator that needs a Pantograph to set it is:
Fully adjustable articulator
The articulator which requires most time to prepare a case and specialized training in its use is the:
Fully adjustable articulator
The tray on a maxillary model should stop at the:
Hamular notch
When dealing with TMJ, which treatment would provide the most diagnostic information to the doctor and still be kind to the patient?
Hard acrylic occlusal appliances
A non-arcon articulator is one which:
Has the condyles on the upper member
The purpose of a centrically balanced occlusal closure is to:
Have contacts made simultaneously and with equal force
One advantage specific to cusp to marginal ridge occlusion is that it:
Helps to maintain stability if a tooth is lost
The two purely vertical movements of the mandible, elevatin and depression, have the same movement in each joint and are also known as:
Hinge movements
The two purely vertical movements of the mandible, elevation and depression, have the same movement in each joint and are also known as:
Hinge movements
Overjet is defined as:
Horizontal overlap
The curve of spee:
Is the anterior-posterior curvature of th e occlusal surfaces of mandibular teeth
A shim or a spacer is necessary because:
It makes an even space from the tissue stops to the inside of the tray.
Bennett movement is described as a:
Lateral side shift of the mandible
Which upper teeth do not touch the template?
Laterals and second molars
The range of movement of the mandible is determined by what factors?
Ligaments and shape of TMJ
Monomer is a:
Liquid for mixing methyl methacrylate/ acrylic
Which of the following teeth have a single opposing tooth?
Mandibular central incisors
The difference between a crown and bridge custom impression tray and a denture tray is the
Materials being used
The shearing cusps are the:
Maxilla buccal and mandible lingual
The lower canine sits behind and to the mesial of the:
Maxillary canine
On the non-functioning side of occlusion in the natural dentition, the:
Maxillary molar lingual cusps will not usually contact the mandibular molar
The position of marginal ridges is important for opposing occlusion and must be even in height. They are located on what part of the tooth?
Mesial and distal of occlusal area
All but two supporting cusp tips are cradled in opposing adjacent marginal ridge areas. The two exceptions are cradled in opposing central fossae. Which of the following pairs are the exceptions?
Mesiolingual cusp of the upper molars and distobuccal cusp of lower molars.
The _______ is where the two centrals line up and is marked by the dentist:
Midline
Which statement best describes the movements in the temporomandibular joint during centric occlusion, protrusion, and retrusion?
Movements occur bilaterally simultaneously and in the same direction
The appliance which is best to relieve hyperactive muscles is called a/an:
Muscle relaxation appliance
The theory of occlusion in which there is anterior guidance is:
Mutually protected
When the canines and anterior teeth cause the posterior teeth to disocclude in eccentric excursions, this is called:
Mutually protected
A simple hinge type articulator is an example of:
Non-adjustable articulator
In ideal centric occlusion, the mesiolingual cusp of the maxillary first molar:
Occludes in the central fossa of the mandibular first molar
In Class I centric occlusion, the cusp tip of the maxillary canine:
Occupies the facial embrasure between the mandibular canine and first premolar
In normal centric occlusion, the cusp tip of the maxillary canine:
Occupies the facial embrasure between the mandibular canine and first premolar.
Which statement is most nearly correct as it relates to mastication of food?
Opposing teeth seldom contact during mastication
Porcelain dentures are a mechanical return in the base by:
Pins in the anterior/ diatoric holes in the posterior
Pumice, Tripoli, and white diamond:
Polish acrylic so that food will not adhere to rough areas
Polymer is a:
Powder for mixing methyl methacrylate
From physiologic rest position, the lower jaw can be projected forward. This movement is known as:
Protrusion
From physiologic rest postion, the lower jaw can be projected forward. This movement is known as:
Protrusion
The handle on a custom impression tray should:
Raise up and clear the lip
The purpose of a custom incisal guide table is to:
Record patient guidance
To prevent dislodging on the denture, frenum areas must be:
Relieved
Choose the correct definition of Removable Partial Denture.
Removable replacement for missing natural teeth, gingival tissue, and supporting bone when one or more natural teeth still remain.
A mandibular custom impression tray should stop at:
Retromolar pad
A mandibular custom tray should stop at:
Retromolar pad
The articulator which has progressive side shift, condylar inclination and permits straight line movements is the:
Semi adjustable articulator
An articulator that has straight but adjustable condylar eminentia is a:
Semi-adjustable articulator
Which is not a Lingual Plate Design?
Split horseshoe
______ is the commercial name for a prefabricated hinge and lock system that can be substituted for clasps in an RPD framework.
Swing-lock
In a Class I occlusion, where does the buccal cusp of the mandibular first molar occlude?
The central fossa of the maxillary first molar
In Class I centric occlusion, the maxillary anterior teeth occlude with:
The facio-incisal edge of mandibular anterior teeth
The "forces of mastication" means:
The forces of chewing
Failure to set posterior teeth over the lower ridge will result in:
The lower denture tipping
The lower second bicuspid fits between:
The maxillary 1st and 2nd.
The mandibular second premolar contacts:
The maxillary first and second premolars
A stock impression tray is not as accurate as the custom impression tray because:
The uneven thickness of the impression material can distort as it sets.
A boley gauge measures:
Thickness of crowns
Hamular notches and retromolar pads on upper and lower models are:
Tissue landmarks for ending trays, baseplates, and dentures.
Trial packing is done at least 3 times:
To ensure the acrylic is condensed
In a class I occlusion a tooth has contact with two teeth in the opposing arch. Here are two exceptions to this statement and they are:
Upper 3rd molars and lower centrals
In a Class I occlusion a tooth has contact with two teeth in the opposing arch. There are two exceptions to this statement and they are:
Upper third molars and lower centrals
Which is not a position of tilt? [anterior, posterior, left lateral, or vertical]
Vertical
Which is not part of a surveyor? [horizontal base, vertical base, upright column, or spindle with tool holder]
Vertical base
Overbite is known as:
Vertical overlap
The maxillary secured premolars are set in a:
Vertical position and the buccal and lingual cusps touch the occlusal plane
In a physiologic rest position:
Vertical space between the maxillary and mandibular teeth when the muscles of mastication are relaxed.
Which is not part of the criteria for choice among the common denture base and artificial tooth combination? [Esthetic values, presence of soft tissue undercuts, the amount of space present between the crest of the residual ridge and the supposing arch is a very important factor, or width of the edentulous span]
Width of the edentulous span
The unit of undercut measurement is:
hundredths of an inch