Partial Denture I Test

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1 / 60

Rest:

a. mainly offers stability

b. is placed on rest seat always and mainly offers stability

c. need not have rest seat

d. is placed on rest seat always

2 / 60

Indirect Retainer គឺជាផ្នែកនៃក្រាសធ្មេញទប់ត្រង់កន្លែង :

a. ពង្រីកផ្ទៃក្រោយ

b. ផ្ទៃខាងមុខ

c. ផ្ទៃកណ្តាល

d. ផ្ទៃចំហៀង

3 / 60

Body ភ្ជាប់ពី Rest ទៅៈ:

a. Retentive Clasp Arm

b. Retentive terminale

c. Reciprocal arm

d. Minor Connector

4 / 60

Lattice pattern is preferable for mesh pattern of minor connector to connect denture base to major connector because:

a. It gives excellent attachment and Gives bulk to the minor connector

b. It gives excellent attachment while minimizing warping resin bases

c. It gives excellent attachment

d. Gives bulk to the minor connector

5 / 60

The Kennedy classification of this RPD is:

a. Kennedy class IV mod I

b. Kennedy class III

c. Kennedy class II mod I

d. Kennedy class III mod I

6 / 60

Disadvantages of incisal rest are following except:

a. Causes orthodontic movement of teeth

b. Unfavorable leverage on teeth

c. Less esthetic

d. Causes intrusion of anterior teeth

7 / 60

Stability:

a. ក្រាសធ្មេញដាក់លើក្រអូម

b. ក្រាសធ្មេញដាក់លើក្រអូមបណ្តាលអោយឈឺសាច់

c. ក្រាសធ្មេញដាក់លើក្រអូមណែន និងមិនរំជួល

d. ក្រាសធ្មេញដាក់លើក្រអូមរលុង

8 / 60

Multiple clasps are joined at :

a. Tip of reciprocal terminals

b. Back of the minor connector

c. Tip of retentive terminals

d. Back of occlusal rests

9 / 60

Interproximal occlusal rest seats:

a. Do not avoid wedging effect by framework

b. Extend far lingually

c. All are corrects

d. Violate contact points

10 / 60

Bar Clasp ចូលដល់ Undercut ពីខាង:

a. អញ្ចាញ

b. មុខ Distale

c. មុខ Occlusal

d. មុខ Mésiale

11 / 60

Clasp retention is:

a. Resistance of metal to deformation

b. Tight holding of tooth by the clasps

c. Perpendicular to path of placement and Resistance of metal to deformation

d. Perpendicular to path of placement

12 / 60

Uses of multiple clasp includes following except:

a. In class II modification 1 areas

b. When teeth from entire half of denture arch are missing

c. When only available retentive areas are adjacent to each other

d. When additional retention is needed in class III cases

13 / 60

Functions of guiding planes are:

a. They make all the teeth parallel to each other

b. Ensure predictable clasp retention

c. Ensuring definite path of placement

d. Ensuring definite path of placement and Ensure predictable clasp retention

14 / 60

To prevent dislodgement of abutment in distal extension RPD, it is required to have a :

a. positive denture base-tissue relationship

b. indirect retainer

c. multiple clasping

d. stress breaker

15 / 60

Limitations to use of internal attachment are following except:

a. Cost of the prosthesis

b. Clinical crown short

c. Size of the pulp

d. Availability

16 / 60

If a third molar is absent and not to be replaced :

a. it may or may not be considered

b. it is not consideration in the classification of partial dentures

c. it is considered important for classification

d. none applies

17 / 60

Functions of a Major connector:

a. unification, stress distribution, cross arch stabilization

b. kind of metal chrome cobalt

c. component of RPD connect to acrylic resin

d. functions as one unit

18 / 60

Canine extensions from occlusal rests are used as indirect retainers, except one:

a. Depend on extension denture base

b. When primary abutment is the I premolar

c. As the tip of the canine extension acts as resting element

d. On prepared surfaces of canines

19 / 60

Incisal rests should generally not used on maxillary incisors Why?:

a. for mandibular class 4 kennedy only

b. for maxillary class 4 kennedy only

c. poor esthetics and interferences with opposing occlusion

d. for maxillary and mandibular class 1 and 2 kennedy

20 / 60

Major Connector គឺផ្នែកនៃគំរោងដែលតាំងនៅ :

a. សងខាងក្រអូម

b. ម្ខាងនៃក្រអូម

c. សងខាងក្រអូម

21 / 60

The kennedy classification of this RPD is:

a. Kennedy class I

b. Kennedy class I mod I

c. Kennedy class II

d. kennedy class II mod I

22 / 60

Denture Base គឺជាកន្លែងដែលគេដាំៈ:

a. ជាតិ Ionomer

b. គ្រាប់ធ្មេញ

c. គ្រាប់ Amalgame

d. ជាតិ Ciment

23 / 60

Following factors increase effectiveness of indirect retainer, except:

a. Distance from fulcrum line

b. Increased flexibility of minor connector used

c. Quality of direct retainer

d. Supporting tooth surface

24 / 60

Following parts of a RPD may act as indirect retainer except:

a. Rests

b. Minor connector supporting rests

c. Proximal plates

d. Retentive tip

25 / 60

Tissue stops in impression tray aids in :

a. better acrylic flow

b. stronger impression tray

c. anterior- posterior stabilization

d. proper retention

26 / 60

3 weeks after insertion of distal extension partial denture, the patient reports to the dental clinic with complaint of sensitivity to chewing pressure. The most probable reason would be :

a. improper occlusion

b. abrasion of tooth by clasp

c. wearing off the cement base

d. passive retentive arm

27 / 60

A removable partial denture may be:

a. All tooth supported

b. All tooth supported and tissue supported

c. Tooth and tissue supported

d. All tissue supported

28 / 60

Rotation in a distal extension denture base occurs because of differences in displaceability of:

a. Supporting abutment teeth

b. Are all corrected

c. Soft tissue of residual ridge

d. Periodontal ligament

29 / 60

An ideal clasp assembly should possess the following quality:

a. Weight of metal

b. Kind of metal

c. Reciprocation

d. Elasticity

30 / 60

ចំណាត់ថ្នាក់ទី ២ នៃចន្លោះធ្មេញ គឺប្រឡោះធ្មេញ :

a. ក្រោយតែម្ខាង

b. ខាងមុខតែមួយ

c. ក្រោយទាំងសងខាង

d. ខាងទាំងពីរ

31 / 60

The total retention for a RPD is obtained from:

a. Pontic with major connector

b. Major connector and minor connectors

c. Denture style retention(adhesion ,cohesion ,interfacial surface tension)

d. Natural teeth and major connector

32 / 60

Maxillary major connectors most common use is:

a. full palatal strap

b. anterior palatal strap

c. palatal strap

d. anterior posterior palatal strap

33 / 60

Metal bases use :

a. for anterior edentulous space

b. big edentulous space

c. for posterior edentulous space

d. small edentulous space (no room for grid work)

34 / 60

In class I distal extension denture base, moving indirect retainer to mesial ridge of I premolar helps in, except one:

a. Placement of minor connector in embrasure between premolar and canine

b. Efficient direct retainer

c. Prevents interference to tongue by the minor connector

d. Preventing weakening of single rooted anterior teeth

35 / 60

Denture bases of RPD offer:

a. Mechanical retention

b. Primary retention

c. Primary retention and Mechanical retention

d. Secondary retention

36 / 60

សារៈប្រយោជន៍នៃធ្មេញដាក់ដោះមួយផ្នែកដើម្បីៈ:

a. ដាក់ទៅកកិតនឹងជាលិកា

b. ជួយជំនួសជាលិកាដែលបាត់បង់ទៅ

c. ជាលិកាស្រកទៅនៅដដែល

d. ឈឺសាច់ជាលិកា

37 / 60

Full incisal rests are indicated in following except:

a. To provide retention

b. To provide anterior guidance

c. To abrade anatomy of teeth

d. To provide stabilization

38 / 60

A clasp most common use is?:

a. Back action clasp

b. Aker clasp

c. Ring clasp

d. Embrasure

39 / 60

In this Class I mandibular removable partial denture, rests preparations on the cingulum of (#33&#43):

a. Would provide indirect retention for the removable partial denture

b. Would provide indirect retention for the removable partial denture if covered by the major connector

c. Are not indicated in this case

d. Are correct if rests preparations are good

40 / 60

Minor Connector តភ្ជាប់ទៅៈ:

a. Major Connector

b. Artificial teeth

c. Denture Base

d. Abutment

41 / 60

The internal and external finish line is:

a. Normally off set from each other to avoid weakness in the framework

b. None of the above statements are true

c. Normally superimposed over each other

d. Normally designed and placed independently

42 / 60

Prosthodontics:

a. ការផ្លាស់ប្តូររាងកាយដែលបាត់បង់ទៅ

b. ការទុកប្រលោះធ្មេញអោយនៅដដែល

c. ផ្លាស់ប្តូរធ្មេញសិប្បនិម្មិត ត្រង់កន្លែងដែលបាត់

d. ការផ្លាស់ប្តូរធ្មេញធម្មជាតិត្រង់កន្លែងដែលបាត់

43 / 60

Rest អាចសណ្តូកលើផ្ទៃ:

a. Vestibulaire

b. Distale

c. Occlusal

d. ខាង Mésial

44 / 60

Acrylic resin bases is :

a. esthetics

b. most common type

c. all are corrected

d. ease of repair

45 / 60

What is the correct relationship of the foot of an-I bar to the survey line (height of contour) on abutment for an extension RPD:

a. The foot should be entirely above and partially below the survey line

b. The relationship of the foot of the I –bar and the survey line of no consequence

c. The foot should be totally below the survey line

d. The foot should be entirely above the survey line

46 / 60

When anterior teeth are to be replaced, the best path of placement that can be selected is:

a. Right lateral

b. Antero-posterior

c. Vertical

d. Horizontal

47 / 60

An ideal clasp assembly should possess the following quality:

a. 160 degree encirclement

b. 45 degree encirclement

c. 90 degree encirclement

d. 180 degree encirclement

48 / 60

Retentive terminal:

a. នៅត្រង់ខ្សែបន្ទាត់ស្ទង់

b. នៅក្រោមខ្សែបន្ទាត់ស្ទង់

c. នៅលើ Point de contact proximal

d. នៅលើខ្សែបន្ទាត់ស្ទង់

49 / 60

Fulcrum line ជាបន្ទាត់មួយរត់កាត់តាមៈ:

a. Mésial rest seat

b. Distal rest seat

c. Lingual rest seat

d. Vestibular rest seat

50 / 60

When designing palatal major connectors ,relief should for:

a. Rugae areas

b. Elevated mid suture line

c. Ridge area

d. Palatal torus

51 / 60

Shoulder សន្តូកលើៈ:

a. បន្ទាត់ស្ទង់

b. Distale

c. Face Mésial

d. Face Occulsale

52 / 60

Back action clasp use:

a. Class III

b. Class I

c. Class IV

d. Class II

53 / 60

For indirect retainer to be effective, most important factor is:

a. It should lie in a flat plane

b. The approach arm should be most flexible

c. Principal occlusal rest on direct retainer should be firm on the rest seats

d. It should cross marginal gingival 90 degrees

54 / 60

Which of the following clasps commonly utilize lingual undercut ?:

a. Half and half clasp, Back action clasp

b. Extended arm clasp, Akers clasps

c. Ring clasp , I bar clasp

d. Half and half clasp, Ring clasp

55 / 60

Setting of a RPD may occur due to one of the following reasons, except:

a. Flow of amalgam underneath restorations

b. Giving canine rest seat

c. Intrusion of abutment

d. Improper rest design

56 / 60

Dislodgement of indirect retainer from its seat when rotation occurs, indicates:

a. Efficient indirect retainer and Need to reline the distal extension denture base

b. Inefficiency of direct retainer

c. Need to reline the distal extension denture base

d. Efficient indirect retainer

57 / 60

The relation of the cast to surveyor can be recorded in the following manner:

a. By tripoding with tiny pits

b. By tilting the joint of the surveyor table

c. By scoring the base of the cast

d. By scoring as well as tripoding with pits

58 / 60

ទិសដៅនៃធ្មេញដាក់នោះ មួយផ្នែកដើម្បីសំឡេងៈ:

a. គ្រលពេក

b. និយាយមិនសូវច្បាស់ល្អ

c. ច្បាស់ល្អ

d. ស្រួយពេក

59 / 60

What is the most common use material for casting framework of RPD:

a. Chrome cobalt

b. Platinum

c. Nickel chrome

d. Titanium

60 / 60

All of the following are advantages of the gingivally approaching clasps as compared to occlusally approaching clasps, except:

a. esthetically superior in most cases

b. less tooth contact

c. less distortion of coronal contours

d. less bothersome to vestibular tissues

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និស្សិតអាចប្រាប់មកកាន់ពួកយើងបានដើម្បីកែកំហុស ឬអំពីបញ្ហាដោយអចេតនាណាមួយដែលកើតមានកំឡុងពេលធ្វើតេស្ត