Complete denture prosthetics



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Complete denture prosthetics
1. A patient came to a dental clinic

for dental prosthetics. Objectively: total

lack of teeth on the mandible. Sharp and

regular atrophy of alveolar part. Frenula

attachment and fold position is high.

Name the type of atrophy of edentulous

mandible using Keller’s classification:

A. II type

B. I type

C. III type

D. IV type

E. V type
2. A 64 year old patient applied to a dental clinic for tooth prosthetics.Objectively:

there is a sharp bony prominence

in the area of the missing 15 tooth. It

is planned to make a partial removable

denture with two-layer base. What plastic

should be used for elastic backing?



A. Plastic PM-01

B. Ftorax

C. Acryl

D. Protacryl

E. Bacryl
3. A 70 year old patient is awaiting

complete removable dentures for both

upper and lower jaws. Teeth placement

will be made by Vasilyev’s method. What

teeth in the upper denture must not touch

glass?


A. Lateral incisors and second molars

B. Central incisors and first molars

C. First and second premolars

D. Canines and first molars

E. Second premolars and first molars

4. A 65 year old patient complains of

pain in the area of mucous membrane of

hard palate on the left that is getting worse

during eating with use of a complete

removable denture. He has been suffering

from this for 1,5 month. Objectively: leftsided hyperemia and edema of mucous

membrane of hard palate; at the border

of distal denture edge there is an ulcer

with dense walls and fundus, surrounding

tissues are infiltrated. The ulcer floor is

tuberous, covered with fibrinous deposit;

ulcer palpation is painful. What examination

method is to be applied in the first

place?


A. Biopsy

B. Bacterioscopy

C. Cytology

D. Allergic contact plastic test

E. Serological reactions
5. A 70-year-old male patient ordered

complete removable dentures for both

jaws. In the clinical stage he came for

"identification of central relationship".

For verification of interalveolar height the

patient underwent speaking test. The patient

was asked to pronounce the sounds

"O", "E", "M". What distance should

be between the occlusal rims for correct

identification of interalveolar height?



A. 5-6 mm

B. 9-10 mm

C. 3-4 mm

D. 1-2 mm

E. 7-8 mm
6. A 70-year-old male patient complains

about total teeth missing on both jaws.

It is planned to fabricate a complete

removable lower jaw prosthesis. Objectively: alveolar process of the lower jawis atrophied only in the frontal aspect.

Identify the type of lower jaw atrophy

according to Keller’s classification:



A. IV

B. II

C. I

D. III

E. -
7. A 38-year-old female patient complains

about pain in projection of the external

acoustic meatus, clicking during mouth

opening, ear stuffiness. Objectively: the

face is symmetric, mouth is opened in

staright path. There is Kennedy I type

dentition defect, the 18, 17, 16, 26, 27,

28 teeth are missing. What anatomical

formation carries the maximum load?

A. Articular disk (meniscus)

B. Articular head

C. Distal clivus of medial articular tubercle

D. Glenoid fossa floor of temporal bone

E. Joint capsule

8. A 75-year-old patient ordered a

complete removable denture for the

upper jaw. While adjusting the individual

tray by Herbst’s method the orthodontist

revealed that the tray could be thrown off

when the patient rounded his lips. What

part of the tray requires correction?

A. Vestibular part between the canines

B. Distal part along the A line

C. In the region of buccal cords

D. Along the whole vestibular edge

E. Behind the maxillary tuber
9. A 55-year-old patient has a repeated

appointment with a dentist. He has

ordered complete removable lamellar

dentures for both upper and lower jaws.

During his previous visit the dentist

took complete anatomic impressions of

both jaws and sent them to the dental

mechanic.What manipulations should the

dentist perform at the next clinical stage?

A. Adjust individual trays

B. Locate and fix central occlusion

C. Check the prosthesis construction

within the oral cavity



D. Correct the prosthesis and give the

patient necessary instructions



E. Fabricate occlusal rims
10. The patient is 75 years old. The

inspection of construction of complete

removable dentures revealed that only

lateral artificial teeth were in contact,

there was a gap between frontal teeth. In the lateral part on one side cusp-tocusp

contact was present, on the other side

there was a horizontal gap; the central line

was deviated.Whatmistake wasmade?



A. The patient was thought to have lateral

occlusion



B. Occlusal rims were irregularly softened

C. The patient was thought to have anterior

occlusion



D. Interalveolar height was increased

E. Wax moulds were deformed while

determining central occlusion


11. A 65-year-old patient complains

about unsatisfactory fixation of complete

removable lamellar denture of his upper

jaw. The denture was fabricated 6 years

ago. Objectively: balancing and poor fixation

of complete removable denture is

present. What is the reason of such condition?

A. Atrophy of osseous base of the

prosthetic bed tissues



B.Wear of artificial teeth

C. Bad hygiene of removable denture

D. Discoloration of basic plastic

E. Loss of certain antagonists
12. A 73-year-old patient consults a

dental orthopaedist about total edentia.

Objectively: there is insignificant regular

atrophy of the alveolar process of

mandible, the process is covered with

mucous membrane of moderate elasticity.

According to Keller’s classification, such

manifestations are characteristic for the

folowing type of edentulous jaw:

A. First

B. Third

C. Fifth

D. Second

E. Fourth
13. A 64-year-old patient needs a

complete removable denture for the

upper jaw. During fitting the Herbst appliance,the orthopedist revealed that it

falls off when the patient swallows. The

correction is required in the following

area:


A. Distally along the "A"line

B. In the region of maxillary prominences

C. In the region of buccal muscles

D. Vestibularly between canines

E. Along the vestibular edge

14. A 58-year-old patient complains of

missing teeth on the upper jaw. Objectively:

in the place of the missing central

upper incisors there is a fan-shaped vestibularly

located cord on the alveolar

process. The cord is 1 cm wide, it makes

prosthetics more complicated.What is the

optimal medical tactics?



A. Surgical excision of the cord

B. Silicone implant

C. Operation on the alveolar process

D. Not to cover the cord with the denture

E. To cover the cord with the denture

15. A 67-year-old female patient has a

burning sensation under her complete

removable denture for the upper jaw

which was fabricated of plastics 3 days

ago. Examination revealed hyperemia and

edema of the mucous membrane within

the boundaries of the denture-supporting

area.What is the cause of this pathology?



A. Excess of monomer in the plastics

B. Sensitization to the plastics

C. Paresthesia of the oral mucosa

D. Dysbiosis of the oral cavity

E. Galvanism in the oral cavity

16. A 64-year-old patient with

edentulous jaws has a minor uniform

atrophy of maxilla and a pronounced

atrophy of lateral parts of mandible. The

mucosa in these parts makes longitudinal

folds, the alveolar crest is mobile in

the anterior part. The condition of mandible

should be taken into consideration

at the following stage of fabrication of a

complete removable denture:



A. Taking differentiated functional

impression



B. Taking anatomical impression

C. Taking compression functional impression

D. Taking decompression functional

impression



E. Determining the central occlusion

17. A 55-year-old patient has a repeated

appointment with a dentist. He has

ordered complete removable lamellar

dentures for both upper and lower jaw.

During his previous visit the dentist

took complete anatomic impressions of

both jaws and sent them to the dental

mechanic.What manipulations should the

dentist perform at the next clinical stage?

A. Adjust individual trays

B. Locate and fix central occlusion

C. Check the prosthesis construction

within the oral cavity



D. Correct the prosthesis and give the

patient necessary instructions



E. Fabricate occlusal rims

18. A 68-year-old patient complains

about pain in the palate that occurs during

wearing a complete removable denture

the patient got 3 months ago. Objectively:

palatine torus is strongly marked, mucous

membrane around it is hyperaemic and

edematic. What is the most probable

cause of this complication?

A. Torus wasn’t isolated

B. Previous impression was made in plaster

C. Functional impression was taken by

means of a rigid individual tray



D. It was made anatomic teeth

arrangement



E. Prosthesis base is made of acrylic plastic
19. A completely edentulous 70-year-old

patient has ordered complete removable

dentures. Artificial teeth are placed upon

the spherical surface. Close teeth contact

by movements of the lower jaw will be

guaranteed by the following average radius

of the spherical surface:

A. 9 cm

B. 5 cm

C. 7 cm

D. 12 cm

E. 18 cm
20. A 60-year-old patient complains of

pain in the masticatory muscles and

temporomandibular joint. The dentures

were fabricated a month ago. Objectively:

face configuration is abnormal, the

lower third of the face is elongated, the lips

can only be closed with difficulty, the

speech is indistinct. When smiling, the

base of the complete removable denture is

exposed. What mistakes were made during

the fabrication of complete removable

dentures for the upper jaw?



A. The vertical occlusal dimension was

overrated



B. The vertical occlusal dimension was

underrated



C. Misidentified posterior occlusion

D. Misidentified anterior occlusion

E. Misplacement of maxillary teeth
21. An 80-year-old patient presented

to a clinic for the adjustment of the

impression tray for the upper jaw.Objectively:

alveolar process exhibits marked

homogenous atrophy, maxillary tubers are

absent, torus is weakly expressed. Buccal

muscles and frenulum of the upper lip are

attached almost at the top of the alveolar

process, the palatal slope is not steep.

How to adjust the impression tray in order

to make a close-fitting valve?

A. To extend the borders along the A line

B. To extend the external borders

C. To extend the borders in the frontal

region


D. To extend the borders in the region of

maxillary tubers



E. To overlay buccal muscles and frenulum

with the impression tray


22. Following the upper jaw examination

(according to Schroeder) a 65-yearold

patient was found to have atrophied

maxillary tubers, alveolar processes

covered with atrophic, thin and pale

mucous membrane. What kind of functional

impression technique should be

applied?


A. Decompressive

B. Compressive

C. Dosated

D. Pressure-free

E. Differentiated
23. A 62-year-old patient presented to

the prosthodontics clinic with complaints

about poor fixation of complete

removable lamellar dentures that shows

up during talking and wide mouth opening.

The dentures were fabricated 5 days

ago. In course of denture fabrication

process a mistake was made during:



A. Obtaining the functional impression

B. Occlusal plane orientation

C. Interalveolar dimension measurement

D.Wax reproduction check

E. Plastic polymerization
24. A 47-year-old patient with completely

edentulous upper jaw underwent delayed

implantation with cylindrical implants.

Prosthetics is recommended in:



A. 5-6 months

B. 24 hours

C. 2 weeks

D. 1 month

E. 3 months
25. A 60-year-old patient presented

to a clinic for checking her complete

removable denture. During the teeth placement on the wax bases a gap

between the front teeth and cuspal

interference of the lateral teeth was

revealed.What mistake was made?



A. The patient was found to have anterior

occlusion instead of centric one



B. The patient was found to have posterior

occlusion instead of centric one



C. The patient was found to have lateral

occlusion instead of centric one



D. The models were improperly plastered

in the occludator



E. During establishing the centric occlusion,

the occlusal rims were overpressed


26. A completely edentulous 70-year-old

patient has ordered complete removable

dentures. Artificial teeth are placed upon

the spherical surface. Close teeth contact

by movements of the lower jaw will be

guaranteed by the following average radius

of the spherical surface:

A. 9 cm

B. 5 cm

C. 7 cm

D. 12 cm

E. 18 cm
27. A 36-year-old patient complains of pain under the dental bridge. After its removal the patient has been found to have an ulcer 0,3x0,5 cm large on the alveolar process. The ulcer is slightly painful and soft, the surrounding mucosa is hyperaemic, submandibular lymph nodes are not enlarged. What is a provisional diagnosis?

A. Decubital ulcer

B. Trophic ulcer

C. Sutton aphtha

D. Cancerous ulcer

E. Tuberculous ulcer


28. A 60-year-old patient complains of pain in the masticatory muscles and temporomandibular joints. The pain occurs when she uses complete removable dentures fabricated a month ago. Objectively: the lower third of the face is elongated, the lips can be closed with difficulty, smiling causes exposure of the denture base, the articulation is impaired. A mistake must have been made at the following stage of denture fabrication:

A. Determination and fixation of the

central occlusion

B. Taking anatomic impressions

C. Taking functional impressions

D. Testing the denture construction

E. Fitting the dentures and their correction
29. A 65-year-old patient needs complete removable dentures for both jaws. At the stage of "testing the denture construction "the doctor checks the pronunciation of sounds "S"and "Z". Which method of normalization of speech functions should be applied in this case?

A. Phonetic tests

B. Graphic

C. Myogymnastics

D. Spectrographic

E. Acoustic



30. A 65-year-old patient complains about unsatisfactory fixation of complete removable lamellar denture of his upper jaw. The denture was fabricated 6 years ago. Objectively: balancing and poor fixation of complete removable denture is present. What is the reason of such condition?

A. Atrophy of osseous base of the

prosthetic bed tissues

B. Wear of artificial teeth

C. Bad hygiene of removable denture

D. Discoloration of basic plastic

E. Loss of certain antagonists
31. A 79-year-old female patient

consulted a prosthodontist about denture

replacement. The patient has a history

of a stroke. Objectively: acute irregular

atrophy of the alveolar processes of both jaws is present; mucous membrane of the oral cavity is dry and nonmobile.

The previous dentures cannot be fixed.

What is the most appropriate prosthetic

construction?

A. Dentures with elastic lining

B. Dentures with extended borders

C. Dentures with metal bases

D. Dentures with shortened borders

E. Implant-supported dentures
32. A 70-year-old patient is awaiting complete removable dentures for both upper and lower jaws. Teeth placement will be made by Vasilyev’s method. What teeth in the upper denture must not touch glass?

A. Lateral incisors and second molars

B. Central incisors and first molars

C. First and second premolars

D. Canines and first molars

E. Second premolars and first molars


33. A 73-year-old patient consults a dental orthopaedist about total edentia. Objectively: there is insignificant regular atrophy of the alveolar process of mandible, the process is covered with mucous membrane of moderate elasticity. According to Keller’s classification, such manifestations are characteristic for the folowing type of edentulous jaw:

A. First


B. Third

C. Fifth


D. Second

E. Fourth


34. At the stage of adjustment of an

individual tray the Herbst test should be

done. What muscles cause the shift of the

individual tray during functional testing -

alternate touching right or left cheek with

the tip of tongue?



A. Mylohyoid

B. Digastric, geniohyoid

C. Mentalis and orbicular muscle of mouth

D. Mimic muscles

E. Mastication muscles




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