Dental Material Test

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You will have 60 minutes to complete all the questions. After the timer reaches 60 minutes, the exam will end and be saved automatically. Good luck! *Fingers crossed*

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1 / 60

ចូរអោយឈ្មោះសំភារៈខាងក្រោម:

a. Condenser ( plugger)

b. Burnishers

c. Interproximal Condenser

2 / 60

រូបភាពនេះជាអ្វី?:

a. Mouth prop

b. Saliva ejector

c. Amalgam mixer

3 / 60

Material must be cured in increments of ?:

a. 2mm

b. 4mm

c. 3mm

4 / 60

How can you identify bon the floor of the pulp Chamber in molar:

a. It is smooth

b. It is hard

c. It is grey

d. It is dark brown

5 / 60

រូបភាពនេះជាអ្វី?:

a. Straight Sickle Scaler

b. Ultrasonic Scaler Furcation

c. Ultrasonic Scaler Universal

6 / 60

Diamonds superior for bur cutting ?:

a. Caries

b. Enamel

c. Dentine

d. Cementum

7 / 60

តើគេយកសម្ភារៈអ្វីមកបិតបំពេញ pulp chamber after completion of canal preparation:

a. Lentulo Spiral

b. Endodontic Irrigating Syringe

c. Paper Points

d. Gutta- Percha

8 / 60

រូបភាពនេះជាអ្វី?:

a. Elevator

b. Luxator

c. Couplands Chisel

9 / 60

ចូរអោយឈ្មោះសំភារៈខាងក្រោម:

a. Endodontic File K

b. Broach

c. Endodontic File – Hedstrom

10 / 60

តើរកចម្លើយមួយត្រូវ របស់ Endodontic Plugger :

a. To help condense gutta- percha lateral in canal

b. To carry and place material into tooth

c. To help condense gutta- percha vertically in canal

11 / 60

រូបភាពនេះជាអ្វី?:

a. Universal Curettes

b. Straight Sickle Scaler

c. Implant Scaler

12 / 60

ចូរជ្រើសរើសចម្លើយត្រូវ១របស់ Matrix Band Retainer:

a. To hold matrix band in place along gingival margin of class II, class III or class preparation

b. To maintain stability of matrix band during condensation of restorative material for class II preparation

c. To replace missing proximal wall or walls of cavity preparation for condensation of restorative material for class II preparation

13 / 60

ចូររកចំលើយខុស១នៃ Flexible Mixing Spatula?:

a. To remove permanent crown from tooth during try- in phase , to remove provisional crown

b. To mix dental materials

c. To remove provisional crow

d. To remove provisional crow

14 / 60

មុខងាររបស់ Diamond Bur- Wheel :

a. To reduce bulk of incisal edges

b. To reduce a tooth for crown preparation on lingual aspect of anterior teeth ,To reduce bulk of incisal edges

c. To reduce a tooth for crown preparation on lingual aspect of anterior teeth

d. To reduce a tooth for crown preparation for subgingival margins

e. To reduce a tooth for crown preparation for subgingival margins and To reduce a tooth for crown preparation on lingual aspect of anterior teeth

15 / 60

តើមុខងាររបស់Dental Dam Forcepsគឺ៖:

a. To mark holes on dental dam

b. To place dental dam clamp on tooth and to remove clamp after procedure

c. To isolate teeth for dental procedures

d. To anchor and stabilize dental dam

16 / 60

រូបភាពនេះជាអ្វី?:

a. Polishing brush

b. Polishing Cup

c. Polishing bur

17 / 60

What is the function of the Hollenback Carvers?

a. To contour and carver occlusal and interproximal anatomy in other restorative and temporary filling material

b. To trim interproximal amalgam restoration, recreating contour of proximal wall

c. To condense restorative material

18 / 60

រកចម្លើយខុស១នៃមុខងាររបស់Universal Curettes :

a. To scale supragingival and subgingival serface

b. To use for root planning , periodontal debridement , and soft tisse

c. To scale and remove deposits and stains from teeth

19 / 60

រូបភាពនេះជាអ្វី?:

a. Endo hand file

b. Barbed broach

c. Paster filer

20 / 60

Which groups of instruments are used in endodontic:

a. Enamel cutting instruments

b. Instruments for finishing strip

c. Instruments for root canal filling

d. Instruments for interproximal Condenser

21 / 60

តើចម្លើយមួយណាជា Diamond Bur – Flame:

a. To reduce a tooth for crown preparation when parallel walls and flat floors are needed

b. To reduce a tooth for crown preparation on lingual aspect of anterior teeth and to reduce bulk of incisal edge

c. To reduce a tooth for crown preparation for subgingival margins

22 / 60

ចូររកចំលើយត្រូវ១នៃ Endodontic Long Shank Spoon Excavator ?:

a. To locate opening of small canal orifices for endodontic

b. To curet inside of tooth to base of pulp chamber

c. To carry and dispense irrigating solution into canal for cleansing during debridement of canal

23 / 60

Reamer មានតួនាទី៖:

a. To measure file , reamer and materials in millimeter , To enlarge inner walls of canal

b. To cut and smooth dentinal wall of canal and To enlarge inner walls of canal

c. To cut and smooth dentinal wall of canal

d. To measure file , reamer and materials in millimeter

e. To enlarge inner walls of canal

24 / 60

រកចម្លើយខុស១នៃមុខងាររបស់Flexible Alginate Spatula:

a. To mix laboratory paster, stone , and die stone for models

b. To place around contact area of tooth

c. To mix powder and liquid in flexible bowl

25 / 60

គុណសម្បត្តិរបស់Dental Dam មាន:

a. កាត់បន្ថយការចំលងមេរោគ and ជួយការពារកុំឲ្យអ្នកជំងឺលេបរឺធ្លាក់សម្ភារៈចូលបំពងក

b. ជួយការពារកុំឲ្យអ្នកជំងឺលេបរឺធ្លាក់សម្ភារៈចូលបំពងក

c. អ្នកជំងឺហាមាត់បានតិច

d. កាត់បន្ថយការចំលងមេរោគ

26 / 60

Use of water spray during cutting procedures have following advantages:

a. Tooth restorative material and other debris are carried away.

b. Pulp is protected from heat

c. Bacterial contamination controlled.

d. Dehydration of oral tissues

e. Clean view of cavity can be achieved

27 / 60

គុណសម្បត្តិរបស់Dental Dam មាន៖:

a. អ្នកជំងឺហាមាត់បានតិច, កាត់បន្ថយការចំលងមេរោគ

b. ជួយការពារកុំឲ្យអ្នកជំងឺលេបរឺធ្លាក់សម្ភារៈចូលបំពងក

c. អ្នកជំងឺហាមាត់បានតិច

d. កាត់បន្ថយការចំលងមេរោគ, ជួយការពារកុំឲ្យអ្នកជំងឺលេបរឺធ្លាក់សម្ភារៈចូលបំពងក

e. កាត់បន្ថយការចំលងមេរោគ

28 / 60

Which of the following is the appropriate file for removing gutta- percha from root canals?:

a. S file

b. H file

c. K file

29 / 60

What are the functions of the Orthodontic Bracket?

a. To place bracket on tooth for bonding

b. To hold Orthodontic arch wire in place

c. To hold and carry bracket by placing tip of plies into slot of bracket

30 / 60

តើMatrix Bands for Universal band ដាក់លើធ្មេញណា?

a. For larger molars

b. For premolars

c. For all posterior teeth except larger teeth

31 / 60

តើUniversal Mandibular Forceps for extraction mandibular first and second molars :

a. No.16

b. No. 10s

c. No. 17

32 / 60

Enamel Hatchet គេប្រើវាសំរាប់ធ្វើ :

a. To plane and cleave enamel in cavity

b. To clean and smooth walls in cavity preparation

c. To remove enamel not supported by dentin

d. To clean and smooth walls in cavity preparation and To remove enamel not supported by dentin

e. To clean and smooth floor and walls in cavity preparation

33 / 60

តើHigh –Speed Handpiece មានប៉ុន្មានបែប:

a. ៤

b. ៦

c. ៣

d. ៥

34 / 60

The final finishing of silicate/ glass ionomess restoration is done after?:

a. 24 hours

b. 7 ½ minute

c. 1 hours

d. 30 minutes

35 / 60

តើចម្លើយ១របស់មុខងាររបស់Laser Handpiece Unit:

a. To use for preparation of occlusal surface for sealants

b. To remove lesion or tumor and To use for preparation of occlusal surface for sealants

c. To remove lesion or tumor

d. To control bleeding

e. To remove lesion or tumor and To control bleeding

36 / 60

រូបភាពនេះជាអ្វី?:

a. Surgical Chisel

b. Maxillary Root Forceps

c. Rongeur

37 / 60

រូបភាពនេះជាអ្វី?:

a. Mixing spatula

b. Wax knife

c. Flat plastic

38 / 60

រូបភាពនេះជាអ្វី?:

a. Rubberdam tweezers

b. Rubberdam Clamp

c. Scissors

39 / 60

What is the function of the is Disposable Prophy Angle Attachments for slow – speed Handpiece :

a. To use with burs for intraoral and exraoral procedures

b. To use with slow- speed attachments

c. To polish teeth with prophylaxis / prophy cup or brush

40 / 60

រូបភាពនេះជាអ្វី?:

a. Interdental strip

b. Toflemire matrix retainer

c. Siqveland retainer

41 / 60

ចូរជ្រើសរើសពាក្យត្រូវ១ របស់ non resorbable suture material :

a. Chromic gut

b. Suture Polyglycolic( PGA)

c. Suture Silk

42 / 60

ដើម្បីការពារកុំអោយងាប់pulp ពេលខៃធ្មេញយើងត្រូវការ៖?:

a. Water/air

b. Slow- speed

c. High –Speed Handpiece

43 / 60

រូបភាពនេះជាអ្វី?:

a. Hemostat

b. Tissue Forceps

c. Tissue Scissors

44 / 60

ចូររកចំលើយខុស១នៃ Resorbable suture :

a. Gut plain

b. Chromic gut

c. polypylene

45 / 60

រូបភាពនេះជាអ្វី?:

a. Periodontal Probe

b. Explorer

c. Furcation probe

46 / 60

ដើម្បីយកpulp tissue ពីcanal គេប្រើឧបករណ៏អ្វី:

a. File – Hedstrom

b. Broach

c. File- k type

d. Reamer

47 / 60

Calcium hydroxide is used for :

a. Reduce maginal leakage

b. Reinforce the restoration

c. Pulp capping

d. To prevent recurrent caries

48 / 60

Dental Dam Punch តើចម្លើយមួយណាសំរាប់ចោះ Dental dam ដាក់លើធ្មេញ molars:

a. N o. 3

b. No. 2

c. No. 4

d. No. 5

49 / 60

What is the function of Air/ Water Syringe with Removable Tip:

a. To rinse and dry specific teeth or entire oral cavity

b. To use with bur to cut tooth with decay or other dental anomalies

50 / 60

រូបភាពនេះជាអ្វី?:

a. Periodontal Probe

b. Back Action Hoe

c. Cotton force

51 / 60

រកចម្លើយខុស១នៃមុខងាររបស់ Ultrasonic Scaler Instrument Tip – Supragingival:

a. To remove bacterial plaque from periodontal pockets

b. To remove supragingival calculus on teeth

c. To use for root planning

52 / 60

រូបភាពនេះជាអ្វី?:

a. Matrix band

b. Polishing strips

c. Clear matrix strip

53 / 60

រូបភាពនេះជាអ្វី:

a. Bone File

b. Surgical Mallet

c. Surgical Chisel

54 / 60

Function for used of Wheel Burs are:

a. Remove of cyst

b. Removal of temporary filling

c. To reduce a tooth for crown preparation for subgingival margins

d. To reduce a tooth for crown preparation on lingual aspect of anterior teeth

55 / 60

រូបភាពនេះជាអ្វី?:

a. Gates glidden

b. Mandrel

c. Finger spreader

56 / 60

ចូរអោយឈ្មោះសំភារៈខាងក្រោម:

a. Inverted Cone Bur

b. Straight Fissure Bur

c. Pear Shaped Bur

57 / 60

រូបភាពនេះជាអ្វី?:

a. Wedge

b. Gutta purcha point

c. Paper points

58 / 60

រូបភាពនេះជាអ្វី?:

a. Jacquette scale

b. Push scaler

c. Prophy scaler

59 / 60

រកចម្លើយខុសមួយ របស់ ឧបករណ៏Root elevators:

a. To loosen root

b. To lift and remove fragments of root

c. To separate and lift root from socket

d. To use on posterior teeth

60 / 60

Function for Finishing Strip:

a. To hold material etchant, bonding, and composite

b. To finish and smooth interproximal surface of restoration

c. To harden light cured material bonding, and composite, sealants, build-up material

d. To hold material etchant, bonding, and composite and To harden light cured material bonding, and composite, sealants, build-up material

e. To hold material etchant, bonding, and composite and To finish and smooth interproximal surface of restoration

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និស្សិតអាចប្រាប់មកកាន់ពួកយើងបានដើម្បីកែកំហុស ឬអំពីបញ្ហាដោយអចេតនាណាមួយដែលកើតមានកំឡុងពេលធ្វើតេស្ត