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

រូបភាពនេះជាអ្វី?:

a. Finger spreader

b. Mandrel

c. Gates glidden

2 / 60

មុខងាររបស់ Trial Crown Remover ?:

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

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

c. To seat permanent crown while patient bites in centric occlusion

d. To remove provisional crown

3 / 60

Disposable prophy cup ប្រើសំរាប់polishing លើធ្មេញ :

a. For polishing anterior teeth

b. For deep grooves on lingual surface of anterior teeth

c. For polishing occlusal surface

d. For polishing all surface of teeth

4 / 60

រូបភាពនេះជាអ្វី:

a. Bone File

b. Surgical Chisel

c. Surgical Mallet

5 / 60

តើEndodontic Explorer មានតួនាទី:

a. To grasp and lock material for transfer into and out of oral cavity

b. To locate opening of small canal orifices or endodontics procedure

c. To curette inside of tooth to base of pulp chamber

d. To smooth amalgam after condensing

6 / 60

តើReamer ប្រើmotion អី :

a. Used to cut and smooth dentinal walls of canal

b. Used with twisting motion

c. Used with push – pull motion

7 / 60

មុខងាររបស់ Bone file:

a. To separate tooth from alveolus

b. To separate and lift root from socket

c. To remove or smooth rough edges of alveolar bone

8 / 60

រកចម្លើយខុស១នៃលក្ខណៈរូបរាងរបស់ Universal Curettes:

a. Black –two cutting edges, With face at 90 -degree angle to lower shank

b. Black –two cutting edges , round toe , rounded back At 90- degree angle to lower shank

c. Rounded back and toe ; At 70 -degree angle to lower shank

9 / 60

តើមូយណាមុខងាររបស់ Tissue Forceps :

a. To hold blade in place

b. To cut tissue

c. To cut tissue with blade

d. To hold tissue during surgical procedures

10 / 60

រកចម្លើយត្រូវមួយរបស់Endodontic File – K Type :

a. To cut and smooth dentinal walls of canal

b. To enlarge and smooth inner wall of canal

c. To hold endodontic files and reamers

d. To clean inside wall of canal

11 / 60

Mouth Mirror មានតួនាទីអីខ្លះ:

a. To plane and cleave enamel in cavity preparation

b. To examine teeth for decay

c. To retract lips, cheeks and tongues

d. To grasp or transfer material into and out of the oral cavity

12 / 60

រូបភាពនេះជាអ្វី?:

a. Amalgam mixer

b. Saliva ejector

c. Mouth prop

13 / 60

ចូរអោយឈ្មោះសំភារៈខាងក្រោម:

a. Composite Burnisher

b. Well for composite Material

c. Composite Placement Instrument

14 / 60

តើគេយកសម្ភារៈអ្វីមកបិតបំពេញ pulp chamber after completion of canal preparation:

a. Paper Points

b. Endodontic Irrigating Syringe

c. Lentulo Spiral

d. Gutta- Percha

15 / 60

តើUniversal Maxillary Forceps លេខប៉ុន្មាន?:

a. No. 16

b. No.17

c. No. 10S

16 / 60

ចូរអោយឈ្មោះសំភារៈខាងក្រោម:

a. Diamond Bur – flame

b. Finishing Bur

c. Diamond Bur – Wheel

17 / 60

High – speed Hand piece ល្បឿនខ្យល់រត់ក្នុង១នាទីមានប៉ុនា្មនជុំ(rotation):

a. 350,000

b. 450,000

c. 30,000

d. 550,000

18 / 60

រូបភាពនេះជាអ្វី?:

a. Ball Burnisher

b. Amalgam plugger

c. Amalgam burnisher

19 / 60

តើចម្លើយមួយណាជា Tapered Fissure Bur – Crosscut:

a. To form angles in walls of cavity preparation

b. To place retention grooves in walls of cavity preparation

c. To place retention grooves in walls of cavity preparation and To form angles in walls of cavity preparation

d. To finish composite restoration

e. To finish composite restoration and To form angles in walls of cavity preparation

20 / 60

ចូរជ្រើសរើសចម្លើយត្រូវ១របស់ Amalgam Well :

a. To mix alloy and mercury into amalgam in a capsule

b. To hold amalgam before it is placed in preparation and To mix alloy and mercury into amalgam in a capsule

c. To hold amalgam while loading amalgam carrier

d. To hold amalgam before it is placed in preparation and To hold amalgam while loading amalgam carrier

e. To hold amalgam before it is placed in preparation

21 / 60

តើមុខងាររបស់ Root – Tip Elevators:

a. To lift and remove small root tips in difficult area

b. To lift and remove fragment of root

c. To use on posterior teeth

22 / 60

រកចម្លើយត្រូវ១នៃមុខងាររបស់ Gutta – Percha :

a. To dry pulp chambers of canal

b. To place endodontic sealer or cement in canal for final seal before placement of gutta –percha

c. To fill chamber after completion of canal preparation

23 / 60

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

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

b. To use with burs for intraoral and exraoral procedures

c. To use with slow- speed attachments

24 / 60

រូបភាពនេះជាអ្វី?:

a. X-ray holder

b. Mouth prop

c. Rubber dam frame

25 / 60

តើElastic Separators ដាក់លើធ្មេញលេខណា:

a. Molar

b. Cuspid

c. Premolars

d. Molars and premolars

26 / 60

តើមុខងាររបស់Dental Dam Forcepsគឺ៖:

a. To mark holes on dental dam

b. To anchor and stabilize dental dam

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

d. To isolate teeth for dental procedures

27 / 60

គុណសម្បត្តិរបស់Dental Dam មាន:

a. កាត់បន្ថយការចំលងមេរោគ and ជួយការពារកុំឲ្យអ្នកជំងឺលេបរឺធ្លាក់សម្ភារៈចូលបំពងក

b. ជួយការពារកុំឲ្យអ្នកជំងឺលេបរឺធ្លាក់សម្ភារៈចូលបំពងក

c. កាត់បន្ថយការចំលងមេរោគ

d. អ្នកជំងឺហាមាត់បានតិច

28 / 60

រូបភាពនេះជាអ្វី?:

a. Ortho bracket

b. Ortho band

c. Ortho square

29 / 60

Endodontic Plugger is used in:

a. To remove an obturation

b. To mix filling materials

c. To condense gutta percha vertically in canal

d. To introduce a filling material in caries cavity

30 / 60

តើមួយណាជាcharacteristic of Universal Clamp – Maxillary?:

a. Use on right or left posterior molars

b. Use only on anterior teeth

c. Use is determined by tooth size

31 / 60

ចូរជ្រើសរើសចម្លើយខុស១របស់ Condenser :

a. To pack and condenser amalgam into interproximal areas of cavity preparation

b. To carry and dispense amalgam for cavity preparation

c. To pack and condenser amalgam into cavity preparation

d. To pack and condenser temporary filling material

32 / 60

តួនាទីរបស់របស់Orthodontic Hemostat:

a. To grasp tissue or bone fragments

b. To hold and place separators or tie ligatures to arch wire

c. To hold during surgical procedure

d. To tie in ligature to arch wire

33 / 60

ដើម្បីការពារកុំអោយងាប់pulp ពេលខៃធ្មេញយើងត្រូវការ៖?:

a. Water/air

b. Slow- speed

c. High –Speed Handpiece

34 / 60

Function for Finishing Strip:

a. To hold material etchant, bonding, and composite

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

35 / 60

ចូរអោយឈ្មោះសំភារៈខាងក្រោម:

a. Band Pusher

b. Band Seater Bite Stick

c. Plugger with Scaler

36 / 60

What is function of Saliva Ejector Tip:

a. To evacuate large volumes of fluid and debris from the oral cavity

b. Use on mandibular arch

c.  To evacuate smaller volumes of fluid from the oral cavity

37 / 60

រូបភាពនេះជាអ្វី?:

a. Endodontic Spreader

b. Lentulo Spiral

c. Endodontic Plugger

38 / 60

មុខងាររបស់ Rongeurs:

a. To contour alveolar bone after single or multiple extractions

b. To remove or smooth rough edges of alveolar bone

c. To trim and remove excess alveolar bone after extraction of teeth

39 / 60

ចូរជ្រើសរើសចម្លើយខុស១របស់Composite Placement Instruments:

a. To apply conditioning, primer, and bonding material to cavity preparation

b. To carry composite material in cavity preparation

c. To form occlusal anatomy in composite restorations

40 / 60

តើចម្លើយមួយណាជា Inverted Cone Bur :

a. To remove caries and To establish retention in tooth for cavity preparation

b. To cut cavity preparation

c. To remove caries

d. To establish retention in tooth for cavity preparation

e. To form inner walls of cavity preparation

41 / 60

What is function of the Ultrasonic Scaling Unit ( Power Scaler)

a. To remove supragingival calculus on teeth

b. To use for root planning

c. To use with water – cooled ultrasonic tips vibrating at high frequency

42 / 60

តើមុខងាររបស់ High- Volume (velocity) Evacuator ( HVE) Tip :

a. To evacuate large volumes of fluid and debris from the oral cavity

b. To evacuate fluid from oral cavity and surgical site

c. To evacuate smaller volumes of fluid from the oral cavity

d. To retract tongue during evacuation

43 / 60

រូបភាពនេះជាអ្វី?:

a. Wax

b. Polishing strip

c. Articulating paper

44 / 60

រកចម្លើយខុស១នៃលក្ខណៈរូបរាងរបស់Cotton Forceps:

a. Pointed or rounded

b. Pointed tips; sharp, thin, and flexible

c. Plain or serrated tips

45 / 60

Function for Dental Dam Frame :

a. To anchor

b. To anchor and stabilize dental dam

c. To hold dental dam away from teeth

46 / 60

តើមុខងាររបស់ Disposable prophy cup :

a. For polishing all surfaces of teeth

b. For polishing occlusal surfaces

c. Deep grooves on lingual surface of anterior teeth

47 / 60

តើUniversal Mandibular Forceps for extraction mandibular first and second molars :

a. No. 17

b. No.16

c. No. 10s

48 / 60

ចូរអោយឈ្មោះសំភារៈខាងក្រោម:

a. Elastic Separators

b. Orthodontic Band

c. Elastic Separating Pliers

49 / 60

រកចម្លើយខុស១នៃមុខងាររបស់Glick Instrument :

a. To condense gutta- percha into endodontically prepared teeth using pluger end

b. To use for final filling of canal

c. To serve excess gutta- percha after plugger end is heated

50 / 60

រូបភាពនេះជាអ្វី?:

a. Needle holders

b. Scissors

c. Tissue dissecting forceps

51 / 60

រកចម្លើយខុសមួយនៃ Slow-speed Motor with contra Angle Handpiece :

a. To polish teeth with prophy cup or brush

b. To polish amalgam restoration

c. To remove decay

52 / 60

What is function of Matrix Bands:

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

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

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

53 / 60

រកចម្លើយត្រូវ១នៃលក្ខណៈរូបរាងរបស់ Straight Sickle Scaler:

a. Two cutting edges

b. Two cutting edges on straight blade that ends in sharp point

c. Two cutting edges on curved blade that ends in sharp point

54 / 60

រូបភាពនេះជាអ្វី?:

a. Rotary file

b. Finger spreader

c. Endo file

55 / 60

Laboratory Spatula is used for :

a. Scaling

b. Removing of food debris and dentin

c. Mix material for impression

d. To mix powder and liquid in a flexible bowl

56 / 60

រូបភាពនេះជាអ្វី?:

a. Ultrasonic Scaler Universal

b. Straight Sickle Scaler

c. Ultrasonic Scaler Furcation

57 / 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

58 / 60

រកចម្លើយខុស១នៃមុខងាររបស់ Ultrasonic Scaler Instrument Tip – Supragingival:

a. To remove supragingival calculus on teeth

b. To use for root planning

c. To remove bacterial plaque from periodontal pockets

59 / 60

តួនាទីរបស់Gate Glidden Bur or Drillជ្រើសរើសចម្លើយត្រូវ១:

a. To open canal orifice and enlarge wall of pulp chamber

b. To clean inside wall of canal

c. To enlarge inner walls of canal

d. To electronically measure length of canal to apex of tooth

60 / 60

រូបភាពនេះជាអ្វី?:

a. Floss strip

b. Polishing strip

c. Interdental strip

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និស្សិតអាចប្រាប់មកកាន់ពួកយើងបានដើម្បីកែកំហុស ឬអំពីបញ្ហាដោយអចេតនាណាមួយដែលកើតមានកំឡុងពេលធ្វើតេស្ត