DECKS Flashcards
When border molding a mandibular custom tray that will be used for a final denture impression, the distolingual extension is limited by the action of the:
a. Superior constrictor muscle
b. Masseter muscle
c. Lateral pterygoid muscle
d. Buccinator muscle
a. Superior constrictor muscle
The primary reasons for obtaining the most extensive areal coverage for a mandibular complete denture are:
a. To increase the capacity of underlying structures to withstand the stress due to biting force and to improve appearance
b. To provide balanced occlusion and to increase tongue space
c. increase the capacity of the underlying structures to withstand the stress due to biting force and to increase the effectiveness of the seal
d. To improve retention and to increase tongue space
c. increase the capacity of the underlying structures to withstand the stress due to biting force and to increase the effectiveness of the seal
A reline is indicated on any denture when the diagnostic information indicates that a reline will effectively solve the patient’s chief complaint —when the denture base adaptation is the major defect in the prosthesis.
A reline is contraindicated when there is excessive overclosure of the vertical dimension — a large decrease in vertical dimension. In this case, new dentures are indicated at the proper vertical dimension.
a. Both statements are true
b. Both statements are false
c. The first statement is true, the second is false
d. The first statement is false, the second is true
a. Both statements are true
All new dentures should be evaluated:
a. 3 hours after delivery
b. 12 hours after delivery
c. 24 hours after delivery
d. 48 hours after delivery
c. 24 hours after delivery
Inadequate vertical dimension of occlusion may cause:
a. Gagging
b. Cheek biting
c. Reduced taste
d. Sore spots in the vestibule
b. Cheek biting
All of the following are true regarding the placement of maxillary central incisors in complete dentures EXCEPT one. Which one is the EXCEPTION?
a. Long axes should be perpendicular to occlusal plane
b. Arranged directly over the ridge
c. Placement controls midline, speaking line and lip support
d. Are responsible for helping to make “F” and “V” sounds
b. Arranged directly over the ridge❌
A patient who wears a complete maxillary denture complains of a burning sensation in the palatal area of his/her mouth. This is indicative of too much pressure being exerted by the denture on the:
a. Incisive foramen
b. Palatal mucosa
c. Hamular notch
d. Posterior palatal seal
a. Incisive foramen
The treatment plan for a patient indicates that both mandibular and maxillary immediate dentures are to be fabricated. The ideal way to do this is:
a. Fabricate the maxillary immediate denture first
b. Fabricate the mandibular immediate denture first
c. Fabricate the maxillary and mandibular immediate dentures at the same time
c. Fabricate the maxillary and mandibular immediate dentures at the same time
The first step in the treatment of abused tissues in a patient with existing dentures is to:
a. Fabricate a new set of dentures
b. Reline the dentures
c. Educate the patient
d. Excise the abused tissues
c. Educate the patient
The most important benefit of an overdenture (root-retained denture) is:
a. The psychological comfort of avoiding the loss of all teeth
b. The continuous functional feedback for the neuromuscular system from proprioceptors
in the periodontal membrane
c. The preservation of the alveolar ridge
d. The improved support and stability for the denture
e. The increased retention of the denture
c. The preservation of the alveolar ridge
Which sounds help determine the labiolingual position of the anterior teeth?
a. Linguoalveolar sounds or sibilants (such as s, z, sh, and ch)
b. Fricatives or labiodental sounds (such as f, v, or ph)
c. The b, p, and m sounds
d. Linguodental sounds (such as this, that, or those)
d. Linguodental sounds (such as this, that, or those)
NOTES:
SPEECH SOUNDS
(1) Fricative/ Labiodental sounds (f,v,ph)
- Contact between wet/dry line of lower lip and maxillary incisors
(2) Linguoalveolar/ Sibilant (s,z,sh,ch,j)
- Contact between the tip of the tongue and the lingual surface of the teeth
(3) Linguodental (t,d,n,l)
- contact between tip of tongue between maxillary and mandibular teeth
(4) Bilabial (b,p,m)
- Contact between upper and lower lip
(5) Gutteral (g,k)
- contact between throat and back of the tongue
Whistling in a speaking denture patient may be caused when:
a. Vertical overlap is not enough
b. The area palatal to the incisors is improperly contoured
c. Horizontal overlap is too much
d. All of the above
d. All of the above
A patient has worn a complete maxillary denture for 8 years against mandibular anterior teeth (the remainder of the mandibular teeth are missing). She complains of looseness of the denture. Examination of the mouth shows an excessive amount of hyperplastic tissue at the anterior part of the maxillary ridge. The maxillary denture teeth do not show below the upper lip. Radiographs show poor bone structure in the anterior part of the maxillae. The principal cause of difficulty with her maxillary denture is:
a. Fibrous tuberosities
b. Too great a vertical dimension of occlusion
c. A lack of posterior occlusion
d. The maxillary denture teeth that were used are too short
c. A lack of posterior occlusion
The primary indicator of the accuracy of border molding is:
a. Adequate coverage of tray borders with the material used for border molding
b. Contours of the periphery similar to the final form of the denture
c. Stability and lack of displacement of the tray in the mouth
d. Uniformly thick borders of the periphery
c. Stability and lack of displacement of the tray in the mouth
The ultimate support for a maxillary denture is the bone of the two maxillae and the palatine bone.
The palatal rugae are a primary support area as well.
a. Both statements are true
b. Both statements are false
c. The first statement is true, the second is false
d. The first statement is false, the second is true
c. The first statement is true, the second is false
The palatal rugae are a primary support area as well.❌
The palatal rugae is a SECONDARY support area.
An overextended distobuccal corner of a mandibular denture will push against which muscle during function?
a. Zygomaticus
b. Orbicularis oris
c. Temporalis
d. Masseter
d. Masseter
After border molding the mandibular custom tray, it is important to check for dislodgement in order to detect areas of:
a. Underextension of the tray
b. Overextension of the tray
c. Thickness of the tray
d. None of the above
b. Overextension of the tray
Before an accurate face-bow transfer record can be made on a patient, which of the following must be determined?
a. The inclination of each condyle
b. Vertical dimension of occlusion
c. Centric relation
d. Location of the hinge axis point
d. Location of the hinge axis point (axial center of opening-closing)
A plaster index is used to:
a. Maintain the vertical dimension of occlusion
b. Maintain bite registration
c. Preserve the face-bow transfer
d. All of the above
c. Preserve the face-bow transfer
A generalized speech difficulty with complete dentures is usually caused by which
of the following? Select 2.
a. Faulty tooth position
b. Excess vertical dimension of occlusion
c. Faulty palatal contours
d. Faulty occlusion
a. Faulty tooth position
c. Faulty palatal contours
At the first appointment after insertion of complete dentures, the presence of
generalized soreness on the crest of the mandibular ridge is most likely due to:
a. The newness of the denture
b. Defective tissue registration
c. Premature occlusal contacts
d. Incomplete polymerization of the denture base
c. Premature occlusal contacts
The inferior surface of the maxillary occlusal rim should be parallel to:
a. Frankfort’s plane
b. Camper’s line
c. Fox plane
d. The horizontal condylar inclination
b. Camper’s line (which is an imaginary line traced from the inferior border of the ala of the nose to the tragus of the ear)
The most frequent cause of porosities in a denture is:
a. Insufficient pressure on the flask during processing
b. Insufficient material in the mold
c. A rapid elevation in temperature to 212° F causing vaporization of the liquid
d. Insufficient time for processing
a. Insufficient pressure on the flask during processing
All of the following are disadvantages to immediate denture therapy. Which one
is considered to be the major disadvantage to immediate denture therapy?
a. Increased post-insertion care
b. Increased post-insertion soreness
c. Not being able to have an anterior tooth try-in to evaluate esthetics
d. Greater complexity of clinical procedures
e. A higher cost of treatment
c. Not being able to have an anterior tooth try-in to evaluate esthetics