Rem.pros-Test Questions

Front 1

What is the masticatory loads b/t nature teeth and Complete Dentures?

Back 1

-Teeth: range of 44 lbs of force
-Denture: 5-6X less than natural teeth (7-9 lbs w/ maxmum of 13-16 lbs)

Front 2

In complete dentures mucosa and bone do NOT sustain or support occlusal forces as well (T/F)

Back 2

True

Front 3

Total area of PDL to support occlusal force is ___ in each arch-wider distribution of force

Back 3

-45 cm^2
-For complete denture: total area of support occlusal force is 22.96 for max and 12.25 for mand.

Front 4

The primary stress-bearing area of the maxillary arch is?

Back 4

-Residual alveolar ridge

Front 5

Bone under complete dentures receives mostly what type of pressure?

Back 5

-Loading in vertical and lateral vectors which tend to cause resorption

Front 6

Well made denture are usually very stable and will NOT move?

Back 6

-False: denture will move b/c mucosa is resilient and complete dentures, no matter how well made and are inherently unstable

Front 7

What is the occlusion differences b/t natural teeth and complete dentures?

Back 7

-Teeth: anterior guidance, group function with protrusion of the nonworking side in lateral excursions and disclusion of posterior teeth in protrusion
-Denture: balanced occlusion w/ complete bilateral occlusal contacts.

Front 8

Labial frenum:
a: is a fold of mucous membrane
b: contains muscle fibers from the orbicularis oris
c: is an area requring relief in the maxillary denture
d: a and c
e: all of the above

Back 8

d: a and c (is a fold of mucous membrane, area requiring relief in the maxillary denture)

Front 9

The muscles that affect the buccal frenum are:
-levator anguli oris (caninus)
-buccinator
-orbicularis oris
-a and c
-all of the above

Back 9

-All of the above

Front 10

As the flange of the maxillary denture extends posteriorly from the labiral vestibule to the buccal vestibule, it tends to "dip down" and then rise up again. This depression of the flange of the maxillary denture is due to:

Back 10

-Prominence of the malar process of the zygoma

Front 11

The reason that the lingual flange of the mandibular complete denture is longer posteriorly than anteriorly is because:

Back 11

-The fibers of the mylohyoid muscle run vertically

Front 12

Loss of complete dentition results in what?
-Lack of fullness of vermillion border of the lips
-Deepening of the nasolabial and mental labial sulci
-Decrease the columella-philtrum angle
-a and b
-all of the above

Back 12

-a and b
-lack of fullness of vermillion border of the lips
-deepening of the nasolabial and mental labial sulci

Front 13

Incisal guidance:
a: is determined by the estehtic arrangement of the maxillary and mandibular anterior teeth
-b: is determined by the arrangment of maxillary and mandibular anterior teeth for proper phonetics
-c: can be altered to a certain extend to provide a properly balanced occlusion
-d: a and c
-e: all of the above

Back 13

-E

Front 14

The incisal edges of the maxillary edges of the maxillary central incisors are usually found:
-a: 3-4 mm anterior to the front of the incisive papilla
-b: 8-10 mm anterior to the center of the incisive papilla
-c: 8-10 mm anterior to the front of the incisive papilla
-d: Centered over the incisive papilla

Back 14

B: 8-10 mm anterior to the center of the incisive papilla

Front 15

The incisive papilla can be used as an anatomic landmark for:
1. midline
2. posterior palatal seal
3. positioning of the maxillary centrla incisors
4. positioning of the maxillary cuspids
5. positioning of the mandibular cuspids

Back 15

-1,3,4: midline, position of maxillary central incisors and cuspids

Front 16

Which factors control the development of complete denture occlusion?
-1.Condylar guidance
-2.Occlusal plane
-3.Compensating curve
-4.Incisal guidance
-5.Cuspal inclination

Back 16

-All of the above (condylar guidance, occlusal plane, compensating curve, incisal guidance, cuspal inclination)

Front 17

Which of the above factors is determined by the pt and CANNOT be altered by the dentist?
-incisal guidance
-condylar guidance
-compensating curve
-occlusal plane

Back 17

-condylar guidance

Front 18

All of the following are true except:
-Increasing film thickness will decrease retention
-Better dneture base adapation decrease film thickness
-Atmospheric pressure and surface tension contribute to retention
-Menicus of saliva is NOT affected by the peripheral border seal

Back 18

-D: Menicus of saliva IS affected by the peripheral border seal

Front 19

The occlusal plane should be level posterioly with:
-Superior border of the retromolar pad
-Lower 1/3 of the retromolar pad
-2/3 the height of the retromolar pad

Back 19

-2/3 the height of the retromolar pad

Front 20

The mandibular posterior teeth should:
1. Positioned so that the central grooves of the teeth are over the crest of the residual ridge
2.End anterior to the upward incline of the residual ridge
3.Be positioned so that the buccal cusps of the teeth are over the crest of ridge

Back 20

-ONLY 1 & 2

Front 21

Primary stress-bearing area of the atrophic mandible is the:

Back 21

-Buccal shelf

Front 22

In an atrophic mandible, the secondary stress bearing area is (are):

Back 22

-Slopes of the residual alveolar ridge

Front 23

The ruggae:
1.are the secondayr stress-bearing area of maxilla
2. resist lateral movement of the denture
3.should be impressed under pressure
4. Resist forward movement of the maxillary denture
5. Contain fibrous CT
6. Contain adipose tissue

Back 23

-1,4,5,6

Front 24

In making a preliminary impression, the impression tray:
-Should be large enough to cover the entire arch
-Should at least 1/4" of space b/t the inside of the tray and the tissues
-can be dentulous tray modified with rope wax to simulate an edentulous tray
-a and b
-all of the above

Back 24

All of the above

Front 25

Retention is defined as:
-Resistance to vertical dislodgement towards the supporting tissue
-Resistance to vertical dislodgement from the supporting tissues
-Resistance to horizontal dislodgement

Back 25

-Resistance to vertical dislodgement away from the supporting tissue

Front 26

Adhesion is:
1.Physical attraction of like molecules for each other
2.Physical attraction of unlike molecules for each other
3.Depends on the viscosity of the saliva
4. Is independent of the viscosity of the saliva

Back 26

-2 and 3 (Unlike molecule are attracted to each other and depend on viscosity of the saliva)

Front 27

The buccal shelf:
-1.Bounded distally by the retromolar pad
-2.Bounded medially by the crest of the alveolar ridge
-3.Bounded laterally by the external oblique line
-4.Bounded anteriorly by the buccal frenum

Back 27

-All of the above

Front 28

Occlusion rims are used:
1.Establish the occlusal plane
2.Establish arch form
3.Establish proper support of the lips and cheeks
4.Establish the initial vertical and horizontal overlaps
5. Obtain preliminary maxillomandibular relation records
6.Establish the vertical dimension of occlusion

Back 28

-All of the above

Front 29

Maxillary occlusion rim is adjusted so that:

Back 29

1.Anteriorly the rim lightly touches the lower during the production of f and v consonante
3.Anteriorly will usually extend inferiorly in a range level with the upper lip at rest to 2mm below the upper lip at rest
4. Provide adequates support for the lips and cheeks
5. Anteroposterior plane is parallel to a line from the infterior border of the ala to the superior border of tragus

Front 30

Muscles that are involved with opening and protrusion of the mandible include:
-Mylohyoid, geniohyoid, digastric, platyama, lateral pterygoids, omohyoid, sternohyoid, stylohyoid

Back 30

-All of the above
-Closing: MMT (Medial pterygoid, Masseter, Temporalis

Front 31

The average interocclusal distance is:

Back 31

-2-4 mm

Front 32

Centric relation is defined as?

Back 32

-Most posterior relation of the mandible to the maxilla at the established vertical dimension of occlusion with condyles articulatingin the anterior-superior position against the slopes of the articular eminences

Front 33

Methods used to retrude the mandible include:
1.Instructing the pt to relax their mandible and allow it to move backwards and close
2.Asking the pt to place the tip of their tongue to the back of the palate and close
3.Tilt the pt back slightly in the chair
4. Turn the patient upside down and shake

Back 33

-1,2,3

Front 34

Mounting the maxillary cast on the articulator w/o a face transfer:
a.Presents no problem in dvelopment of occlusion
b.may place the relationship of the teeth in a position on the articulator that is different from their relationship in the mouth
c.Can cause discrepancies in eccentric movements of the denture teeth that could leads to an unbalanced occlusion especially w/ anatomic denture teeth

Back 34

-B and C

Front 35

The centric relation record can be made with which of the following mediums?
1.Beeswax
2.Baseplate wax
3.Zinc-oxide eugenol paste
4.aluwax
5.Impression plaster
6.High viscosity impression materials
7.Low viscosity impression materials

Back 35

-1,3,4,5,7 (Beeswax, Zinc-oxide eugenol paste, aluwax, impression plaster, low viscosity impression materials)

Front 36

The facial arbitrary face-bow is positioned?
1.13mm in front of the tragus on the ala-tragus line
2.13mm in front of the tragus on the outer canthus-tragus line
3.5mm in front of the tragus on the ala-tragus line
4. 13mm in front of the external auditory meatus on the outer canthus-tragus line

Back 36

-13mm in front of the external auditory meatus on the outer canthus-tragus line

Front 37

Cuspid lines may be determined by lines:
a.Drawn from the pupils in a vertical plane passing through the commissures of the lips
b.Extending lines from the inner canthus of the eyes through the commissures of the lips
c.drawn just anterior to the buccal frena bilaterally
d.a and c
e.all of the above

Back 37

e.all of the above

Front 38

When drawn, the cuspid line:

Back 38

-Delineates the location of the distal surface of the maxillary cuspid

Front 39

When a pt is requested to make the m sound, lick tehir lips, swallow, and or close their lips lightly together, the clinicians is attempting to determine the patient's:

Back 39

-Vertical dimension of rest

Front 40

Vertical dimension of occlusion that is excessive:
1.Will cause elimination of the interocclusal distance
2.Will cause an increased interocclusal distance
3.Will cause spasms of the muscles of the jaws
4.Will cause a generalized soreness to the residual alveolar ridge

Back 40

-1,3,4

Front 41

If there exists a steep condylar guidance and a steep incisial guidance the preferred choice of occlusal design is:

Back 41

-Use of anatomic teeth with a compensating curve

Front 42

If there exists a Class II or Class III jaw relationship, severely atrophic residual ridges and or poor neuromusclar coordination or the patients, the preferred choice of occlusal design is:

Back 42

-Use of nonplane teeth with ramping of the second molars, if needed

Front 43

Anatomic teeth:
1.are very esthetic
2.are easier to balance than non-anatomical teeth
3.provide more vertical chewing stroke
4.provide more horizontal chewing stroke

Back 43

1,2,3

Front 44

Vibrating line:
-marks the posterior border of the maxillary complete denture
-is totally on the soft palate
-extends from hamular nothc to hamular passing anywhere from 2mm behind the fovae palatineae
-a and c
-all of the above

Back 44

all of the above

Front 45

The deflection of the lingual flange medially away from the aveolar ridge in the molar region and downward beneath the tongue:

Back 45

-Caused by promience of the mylohyoid ridge in the molar region
-Caused by the contraction of the mylohyoid muslce
-Desirable b/c it allows the tongue to site upon this portion of the lingual flange to aid in retention of the mandibular denture
-Desirable b/c it allows the mylohyoid muslce to contract during function w/o displacing the mandibular denture

Front 46

The amount of space that exists b/t the vertical dimension of rest and the vertical dimension of occlusion is:

Back 46

-Interocclusal distance (free-way space)

Front 47

The positional relationship of the mandibular incisors to the maxillary incisors during the "s", "ch" and "j" sounds is:

Back 47

-the closest speaking space

Front 48

The best plan of occlusion to enhance stability of complete dentures is one with a shallow incisal guidance inclination. This can be accomplished several ways, which is the least favorable way to accomplish this:
-a.Increase horizontal overlap
-b.shorten the lower anterior teeth by grinding
-c.slightly reduce the length on both max and mand. anterior teeth
-d.none of the above

Back 48

-b: shorten the lower anterior teeth by grinding