Theme 1.Examination of patients with partial adentia. Indications and planning of partial removable denture construction.

Course Module 2

Removable prosthodontics

Theme 1.Examination of patients with partial adentia. Indications and planning of partial removable denture construction.

Q1. In the healthy dentition, the magnitude of functional loading during chewing is approximately proportional to the development of the muscles of mastication. However, for dentures the load limit is influenced by all of the following except:

a. *size of the bolus

b. pain

c. size of the occlusal table

d. location

Q2. Diseases such as diabetes, nephritis, duodenal ulcers, tuberculosis, hormonal imbalances during menopause, and post thyroid surgery are all conditions which lead to degenerative changes in the oral mucosa.

T or *F

Q3. Conventional RPD consists of:

A. *Base, teeth, clasps

B. Base, bar, teeth, clasps

C. Framework, teeth, base

D. Framework, saddles, teeth

E. Base, teeth, bar

Q4. What is a disadvantage of RPD with retentive clasps?

A. *Lack of esthetics

B. Distribution of load to abutment teeth

C. Possibility of clasp fracture

D. Flexibility of metal changes by time

E. Distribution of load in transversal direction

Q5. What is the function of denture base?

A. *Distributes load to mucosa

B. Stabilization of natural teeth

C. Connection of clasps and artificial teeth

D. Increase hygiene of denture

E. Distributes load to teeth

Q6. Who developed the most widely accepted classification system for partially edentulous arches?

A. *Kennedy

B. Skinner

C. Applegate

D. Barlyn

E. Toth

Q7. RPD denture with dentoalveolar clasps (pelote) and artificial teeth without artificial gingiva is manufactured for a patient. Such construction is indicated in case of:

A. *Piriform shape of alveolar ridge

B. Flat alveolar ridge

C. Sharp top of alveolar ridge

D. Rectangular shape of alveolar ridge

E. Trapezoidal shape of alveolar ridge

Q8. Female patient complains of difficulty in chewing due to upper dental arch defect. 1.8-1.4, 2.4-2.8are missing.Deep bite. Conventional RPD is indicated. What material will be used to manufacture denture base?

A. *Ftorax

B. Acryloxide

C. Noracryl

D. Boxyl

E. Karbodent

Q9. Construction of a removable partial denture for a lower jaw is NOT determined by:

A. *Age of patient

B. Topography and extent of defect

C. State of rest teeth

D. Characteristics of residual ridge mucosa

E. Shape and size of alveolar ridge

Q10. What is an advantage of conventional RPD?

A. *Abutment teeth don’t need to be prepared

B. Transfer occlusal forces to supporting oral structures

C. Not stable retention in oral cavity

D. Make abutment teeth unstable

E. Prevent mucosa from self-cleaning

Q11. What advantage does conventional RPD lack for?

A. *High functional value

B. Abutment teeth are not prepared

C. Long addiction to it

D. Hygienic

E. Esthetic

Q12. Patient complains of difficulty in chewing. Case summary: 1.7-1.4, 2.4-2.7are missing. Rest teeth have 1-2 degree of mobility. RPD will be manufactured for this patient. Borders of this denture must:

A. *Completely cover upper tubers

B. Leave upper tubers uncovered

C. Partially cover maxillary alveolar tubers

D. No difference

E. –

Q13. Male patient, 55 year-old, complains of absence of teeth in lateral sites, impossibility of chewing. Dentist decides to conduct functional test using 0,8 gram of almond. The time is measured from starting and till swallow reflex appears. Two measurements are evaluated: the time of chewing and food remainder which are compared with healthy index. Who was the author of this test?

A. *Rubinov

B. Gelman

C. Christensen

D. Kondrashov

E. Oxman

Q14. Male patient wants to restore his dental arches in posterior sites. What is the first step of patient examination?

A. *Complains

B. Dental history

C. Extra-oral examination

D. Instrumental examination

E. Health history

Q15. Patient wants to restore his dental arches. Conventional RPD will be made for the upper jaw. Which structures are NOT examined on the upper jaw?

A. *Lingual frenum attachment

B. Torus

C. Alveolar ridge

D. Labial and buccal frenums attachment

E. Condition of abutment teeth

Q16. A doctor is palpating oral cavity of a patient who is planning to be fabricated conventional RPD. In the deepest part of vestibule unattached gingiva passes into labial or buccal mucosa. Which term is used for this area?

A. *Labial frenum

B. Buffer zone

C. Marginal seal

D. Transition fold

E. Alveolar mucosa

Q17. While patient’s examination a doctor palpates floor of mouth in area of 4.7, 4.6 teeth in order to reveal the anatomic landmark which will be the border of future conventional RPD. Which muscle attachment determines the landmark in that area?

A. *Mylohyoid

B. Geniohyoid

C. Medial pterygoid

D. Lateral pterygoid

E. Digastrics

Q18. A patient is being determined percentage of lost masticatory efficiency. Case summary: 1.7, 1.6, 1.5, 2.5, 2.6, 2.7, 3.6, 3.7, 4.7 are missing. Rest teeth are stable, 4.3 and 2.4 have fillings. Which of the following methods should be used?

A. *Static (by Agapov)

B. Functional (by Rubinov)

C. Graphic (masticatiography)

D. Static (by Oxman)

E. Static (by Kurlandsky)

Q19. Patient is being manufactured conventional RPD for both jaws. Teeth formula:

------ 13-- 21 22-------

----------42 41 3132-----

Teeth are stable, intact. Which class of edentulous arches defects by Gavrilov does this patient have?

A. *1

B. 2

C. 3

D. 4

E. 5

Q20. Female patient is being manufactured conventional RPD for both jaws. Teeth formula:

--------14 13 12 11 21 22 23 24 25 26 27

-------44 43 42 41 31 32 33 34 35 36 37

Teeth are intact. Which class of edentulous arches defects by Gavrilov does this patient have?

A. *1

B. 2

C. 3

D. 4

E. 5