Partial Denture I Test

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1 / 60

ទំពក់ Circlet:

a. ងាយស្រួលជួសជុល

b. ពិបាកជួសជុល

c. ពិបាកផ្សារតភ្ជាប់នៅពេលបាត់

d. ពិបាករកដែកធ្វើ

2 / 60

Component of a clasp assembly are:

a. Two minor connectors, one major connector , one rest, one retentive arm, one bracing or reciprocating element

b. One or two rests, a retentive arm, a bracing or reciprocating element, one minor connectors, one major connector

c. One minor connector, one major connector, one rest, two rests, one retentive arm, one bracing arm

d. One rest, a retentive arm , a bracing or reciprocating element, one minor connector

3 / 60

សាច់ដុំ Depression or opening of the mouth:

a. Temporal

b. External Pterygoids

c. Internal Pterygoids

d. Masseter

4 / 60

Cohésion គឺជាទំនាញ Molécule:

a. 3 ខុសគ្នា

b. 2 ខុសគ្នា

c. 4 ដូចគ្នា

d. 1 ដូចគ្នា

5 / 60

Retention of RPD is obtained by:

a. Rests and rest seats

b. Denture bases and minor connectors

c. Retaining elements, denture bases and Denture bases and minor connectors

d. Retaining elements and denture bases

6 / 60

Minor Connector ភ្ជាប់ពីទំពក់ទៅៈ:

a. Denture Base

b. Major Connector

c. Rest

d. Pontic

7 / 60

Modification spaces are :

a. additional space in class IV

b. spaces anterior to all teeth

c. spaces posterior to all teeth

d. spaces other than the original class

8 / 60

A tissue undercut may preclude the selection of:

a. An infrabulge clasp

b. A combination clasp

c. A half and half clasp

d. A suprabulge clasp

9 / 60

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

a. On prepared surfaces of canines

b. When primary abutment is the I premolar

c. Depend on extension denture base

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

10 / 60

Lattice type of grid work minor connectors is:

a. Potentially superior retention

b. Flatter

c. Potentially more rigid

d. Less retention for acrylic resin

11 / 60

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

a. indirect retainer

b. multiple clasping

c. stress breaker

d. positive denture base-tissue relationship

12 / 60

Infrabulge clasps originate:

a. above the occlusal surface of most premolars

b. below the height of contour

c. above the 12mm undercut areas

d. above the height of contour

13 / 60

In which of the following mandibular positions are the teeth in contact?:

a. Centric Relation and Centric Occlusion

b. Negative, Horizontal and Vertical Overlaps at incisors

c. Edge to Edge Incisor Contact

d. All are correct

e. Maximum Mandibular Protrusion

14 / 60

What are the indications for a linguo plate as a major connector for a mandibular RPD?:

a. Present high lingual frenum and buccally anterior teeth

b. Present high floor of the mouth and facially anterior teeth

c. High floor of the mouth, high lingual frenum, lingual tori

d. Present lingual tori and big tongue

15 / 60

What are the typical positions of the maxillary and mandibular teeth, and the tongue during empty mouth swallowing?:

a. Centric occlusion, the tongue touches the palate

b. Occlusion, the tongue touches the lingual aspects of the anterior teeth

c. Retruded contact, the tongue touches the lingual aspects of the anterior teeth

d. Retruded contact, the tongue touches the palate

16 / 60

When designing palatal major connectors ,relief should for:

a. Palatal torus

b. Rugae areas

c. Elevated mid suture line

d. Ridge area

17 / 60

Reciprocal Arm អាចតទល់នឹងចលនាៈ:

a. បញ្ឈរ

b. ខ្វែង

c. ផ្តេក

d. ផ្អៀង

18 / 60

Function of denture bases :

a. support and retain denture teeth

b. all are corrected

c. improve esthetics

d. stress distribution surface area

19 / 60

Most common complaint of the patient with a thick palatal bar in a RPD is :

a. distortion under occlusal stress

b. difficulty in pressing the food backward and swallowing

c. poor dissipation of force due to rigidity

d. loss of taste sensation

20 / 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 relationship of the foot of the I –bar and the survey line of no consequence

b. The foot should be totally below the survey line

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

d. The foot should be entirely above the survey line

21 / 60

Major Connector ធ្វើអោយៈ:

a. ធ្វើអោយមានពកសាច់ក្រអូម

b. មានដំបៅលើសាច់ក្រអូម

c. មានសភាពសុខស្រួលនៅក្នុងមាត់

d. ក្រអូមទន់រយាក

22 / 60

Fulcrum line ជាបន្ទាត់មួយរត់កាត់តាមៈ:

a. Mésial rest seat

b. Distal rest seat

c. Vestibular rest seat

d. Lingual rest seat

23 / 60

RPD is indicated in all EXCEPT :

a. excessive loss of alveolar bone

b. long edentulous span

c. multiple edentulous spaces

d. distal abutment loss

24 / 60

Minor Connector ចែកទំងន់ទៅ :

a. Rest

b. ធ្មេញដែលនៅសល់

c. Clasp

d. Indirect Retainer

25 / 60

When rest seals are prepared at inter proximal area on two adjacent teeth:

a. They avoid wedging by the framework

b. It should extend for lingually

c. It should extend for lingually and They avoid wedging by the framework

d. They do not shunt food

26 / 60

In general, lingual plating should be supported:

a. With minor connectors

b. With bracing arms

c. With rests

d. By the inclined surfaces of the mandibular incisors

27 / 60

Mandibular gridwork design of minor connectors:

a. extend 2/3 of the way from abutment tooth to retromolar pad

b. maximum bulk of the acrylic resin

c. extend fully to the hamular notch

d. prevents thin, edges fracturing

28 / 60

The best clasp assembly for a terminal abutment on a mandibular class I RPD is:

a. Mesial rest and back action clasp

b. Distal and mesial rests

c. Distal and mesial rests half and half clasp

d. Mesial rest and I- bar clasp

29 / 60

Following are the intended functions of guiding planes, except:

a. To support the retainer arm and reciprocal arm

b. Provide one path of placement

c. Ensure intended action of retainer

d. Eliminate food trap

30 / 60

ទំពក់ Circlet Arm គ្របលើរចនាសម្ព័ន្ធធ្មេញច្រើនដូច្នេះវាៈ:

a. មិនសូវមានសោភ័ណភាព

b. មើលទៅឃើញក្បាច់រចនាតិច

c. មើលទៅឃើញដែកតិច

d. មានសោភ័ណភាពច្រើន

31 / 60

Tripoding is the method used:

a. For recording the relation of the cast to the surveyor

b. To determine the areas on the tooth where the gingivally approaching clasp, occlusal rest of the reciprocal arm are going to placed

c. To have reproducible position of the cast on the surveyor

d. For giving clasp assemblies at 3 points

32 / 60

The external finish line on a maxillary class I RPD originates from the lingual of the guide plane of the terminal abutment and ends:

a. Opposite stenon’s duct

b. In the glenoid fossa

c. Opposite the buccal pouch

d. At the hamular notch

33 / 60

What are the functions of an indirect retainer:

a. To link the major connector and other parts of the prosthesis together

b. To prevent vertical dislodgement of the distal extension base of a RPD

c. To connect the parts of the prosthesis located on one side of the arch with those on the opposite side

d. To prevent horizontal dislodgement of the distal extension base of a RPD

34 / 60

Acrylic resin bases is :

a. all are corrected

b. most common type

c. esthetics

d. ease of repair

35 / 60

The kennedy classification of this RPD is…….in the mandibular with missing teeth #35, 36 #46:

a. Kennedy class III mod. I

b. Kennedy class II mod. I

c. Kennedy class III

d. Kennedy class IV mod. I

36 / 60

Rest Plate System វាអាចៈ:

a. មិនប៉ះទៅនឹងធ្មេញដែលនៅឆ្ងាយ

b. ប៉ះទៅនឹងធ្មេញជិតខាង

c. មិនប៉ះទៅនឹងធ្មេញជិតខាង

d. ប៉ះទៅនឹងធ្មេញដែលនៅឆ្ងាយ

37 / 60

The junction of mandibular minor connector with major connector is :

a. butt joint

b. acrylic forms the joint

c. there is no joint

d. ball and socket joint

38 / 60

The guide surface or guide plate preparation should be curved:

a. Occlusio-gingivally

b. Mesial and distal parallelism

c. Bucco-lingually

d. Mesio-distally

39 / 60

An anterior posterior palatal strap major connector is less rigid than a horseshoe major connector because it (the AP strap) has less width:

a. The first statement is false but the reason is true

b. The first statement is false and the reason is also false

c. The first statement is true but the reason is false

d. The first statement is true and the reason is true

40 / 60

ទំពក់ Circlet មានៈ:

a. ការទ្រទ្រង់បានរឹងមាំ

b. ការទប់ទល់នឹងកំលាំងផ្តេកមិនសូវបានល្អ

c. ការទប់ទល់ទំងន់មិនសូវល្អ

d. ការទ្រទ្រង់មិនសូវរឹងមាំ

41 / 60

Guiding plane are:

a. usually multiple

b. usually single and usually multiple

c. usually parallel

d. usually single

42 / 60

Removable partial denture movements away from tissue may occur due to following except:

a. Moving border tissues

b. Gravity

c. Mastication

d. Pull of food

43 / 60

Minor Connector តភ្ជាប់តួ Body ទៅនឹងៈ:

a. Retentive Claps arm

b. Rest

c. គំរោង

d. Retentive terminal

44 / 60

Attachment between acrylic resin and metal base may be achieved by following:

a. Diagonal spurs

b. All are correct

c. Retention loops

d. Nail heads

45 / 60

Shoulder សន្តូកលើៈ:

a. បន្ទាត់ស្ទង់

b. Face Mésial

c. Distale

d. Face Occulsale

46 / 60

In the following philosophy of RPI system, the functional force is distributed evenly between tooth and tissue:

a. Where proximal plate extends up to the junction of the middle and gingival third

b. Where there is more relief underneath proximal plate

c. Where only 1mm of proximal plate contacts guiding plane

d. Where proximal plate contacts entire length of the guiding plane

47 / 60

Deepest part of a rest seat is towards:

a. Disto- buccal line angle

b. Central fossa

c. Marginal ridge

d. Disto-lingual line angle

48 / 60

Direct retainers offer:

a. Primary retention

b. Secondary retention

c. Mechanical retention

d. Primary retention and Mechanical retention

49 / 60

Rest នៅផ្នែក Cingulum គេប្រើៈ:

a. នៅថ្គាមលើ

b. នៅថ្គាមតូចលើ

c. នៅធ្មេញមុខលើ

d. នៅធ្មេញចង្កូមលើ

50 / 60

សមាសភាពនៃធ្មេញដាក់ដោះមួយផ្នែក :

a. Ponctic

b. Ponctic និង Denture Base

c. Abutment Tooth

d. ទាំងបីខាងលើត្រូវ

e. Denture Base

51 / 60

Main cause of failure of partial denture results from :

a. fracture of metal frame work

b. interference with the function of the tongue

c. resorption of the ridge

d. caries of the abutment

52 / 60

Unilateral edentulous area with natural teeth both anterior and posterior to it represent Kennedy’s…..arch :

a. class I

b. class IV

c. class II

d. class III

53 / 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

54 / 60

Metal bases use :

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

b. for anterior edentulous space

c. big edentulous space

d. for posterior edentulous space

55 / 60

Passive retention in RPDs is provided by :

a. indirect retainers

b. guiding planes

c. undercuts

d. direct retainers

56 / 60

ចំណាត់ថ្នាក់ទី 3 នៃចន្លោះធ្មេញ គឺប្រឡោះធ្មេញៈ:

a. ផ្នែកខាងដែលធ្មេញធម្មជាតិមុខ និងក្រោយ

b. ផ្នែកមុខមានធ្មេញធម្មជាតិនៅសងខាង

c. នៅផ្នែកខាងក្រោយតែម្ខាង

d. នៅផ្នែកខាងក្រោយបង្អស់

57 / 60

ទំពក់ Circlet:

a. តោងជាប់ល្អដូច Bar Clasp

b. មិនសូវទប់ជាប់ល្អដូច Bar Clasp

c. ទប់ជាប់ស្អិតដូច Bar Clasp

d. ទប់ជាប់ល្អដូច Bar Clasp

58 / 60

Following structure of RPD gives both occlusal support and horizontal stabilization:

a. Indirect retainer

b. Occlusal rest

c. Interproximal occlusal rest

d. Internal occlusal rest

59 / 60

Which part of the distal extension RPD provides the greatest resistance to movement and torqueing of the abutment tooth :

a. rest

b. minor connector

c. retentive clasp

d. denture base

60 / 60

The superior border of lingual bar should lie :

a. at least 8mm below the gingival margin

b. deep in the lingual sulcus

c. at least 4mm below the gingival margin

d. at the cingulum of anterior teeth

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និស្សិតអាចប្រាប់មកកាន់ពួកយើងបានដើម្បីកែកំហុស ឬអំពីបញ្ហាដោយអចេតនាណាមួយដែលកើតមានកំឡុងពេលធ្វើតេស្ត