1) Reamer មានតួនាទី: a) To cut and smooth dentinal wall of canal b) To measure file , reamer and materials in millimeter c) To enlarge inner walls of canal d) To measure file , reamer and materials in millimeter , To enlarge inner walls of canal e) To cut and smooth dentinal wall of canal and To enlarge inner walls of canal 2) គុណសម្បត្តិរបស់ Dental Dam មាន: a) អ្នកជំងឺមានមាត់តូច b) កាត់បន្ថយការចម្លងមេរោគ c) ជួយការពារកុំឲអ្នកជំងឺលេបរឺធ្លាក់សម្ភារៈចូលបំពង់ក d) អ្នកជំងឺហាមាត់បានតិច; កាត់បន្ថយការចម្លងមេរោគ e) កាត់បន្ថយការចម្លងមេរោគ, ជួយការពារកុំឲអ្នកជំងឺលេបរឺធ្លាក់សម្ភារៈចូលបំពង់ក 3) តេីមុខងារ Dental Dam Forceps គឺ: a) To anchor and stabilize dental dam b) To mark holes on dental dam c) To isolate teeth for dental procedures d) To place dental dam clamp on tooth and to remove clamp after procedure 4) មុខងាររបស់ Bone file: a) To separate and lift root from socket b) To separate tooth from alveolus c) To remove or smooth rough edges of alveolar bone 5) Mouth Mirror មានតួនាទីអ្វីខ្លះ: a) To retract lips, cheeks and tongues b) To examine teeth for decay c) To grasp or transfer material into and out of the oral cavity d) To plane and cleave enamel in cavity preparation 6) Enamel Hatchet គេប្រេីសម្រាប់ធ្វេី: a) To plane and cleave enamel in cavity b) To clean and smooth walls in cavity preparation c) To clean and smooth floor and walls in cavity preparation d) To remove enamel not supported by dentin e) To clean and smooth walls in cavity preparation and To remove enamel not supported by dentin 7) ចូរជ្រេីសរេីសចំលេីយខិសចំនួន ០១ សម្រាប់មុខងារ spoon Excavator: a) To remove carious dentin b) To remove temporary crowns c) To remove pulp tissue from canal d) To remove temporary cement in temporary restorative 8) Long Needle មានប្រវែង: a) 1 inch long b) 1.5/8 inches long c) 2 inches long d) 3 inches long 9) Anesthetic Cartridge មានចំណុះប៉ុន្មាន: a) 1.5ml to 1.8ml of anesthetic solution b) 1.7ml to 1.8ml of anesthetic solution c) 2ml of anesthetic solution1 d) 3ml of anesthetic solution 10) Basic Dental Instruments មានឧបករណ៍អ្វីខ្លះ: a) Condenser b) Mouth mirror c) Explorer d) Cotton Forceps e) Mouth mirror, Explorer and Cotton Forceps 11) High – speed Hand piece ល្បឿនខ្យល់រត់ក្នុង១នាទីមានប៉ុន្មានជុំ (rotation): a) 30,000 b) 350,000 c) 450,000 d) 550,000 12) Disposable prophy cup ប្រេីសម្រាប់ polishing លេីធ្មេញ: a) For polishing all surface of teeth b) For polishing anterior teeth c) For polishing occlusal surface d) For deep grooves on lingual surface of anterior teeth 13) Liner Applicator មានតួនាទីសម្រាប់: a) To carry and dispense amalgam for cavity b) To pack and condense amalgam into cavity c) To place calcium hydroxide or glass ionomer in cavity 14) ចូរជ្រេីសរេីសចំលេីយខុសចំនួន ០១សំរាប់មុខងារ Burnishers: a) To smooth amalgam after condensing b) To contour matrix band before placement c) To initial carving of amalgam d) To carry and place temporary restorative material 15) ពេលបិត composite class 3 and class 4 តេីគេយកឧបករណ៍អ្វីមកប្រេីដេីម្បីឲរលោងនៅ face interproximal surface : a) Applicator b) Composite Burnisher c) Matrix Bands d) Finishing Strip 16) ដេីម្បីយក pulp tissue ពីcanal គេប្រេីឧបករណ៍អ្វី: a) File- k type b) Broach c) Reamer d) File – Hedstrom 17) Reamer មានតួនាទី: a) To cut and smooth dentinal wall of canal b) To measure file , reamer and materials in millimeter c) To enlarge inner walls of canal d) To cut and smooth dentinal wall of canal and To enlarge inner walls of canal 18) តួនាទីរបស់ Gate Glidden Bur or Drill ជ្រេីសរេីសចម្លេីយត្រូវ១: a) To open canal orifice and enlarge wall of pulp chamber b) To electronically measure length of canal to apex of tooth c) To clean inside wall of canal d) To enlarge inner walls of canal 19) តេីគេយកសម្ភារៈអ្វីមកបិតបំពេញ pulp chamber after completion of canal preparation: a) Lentulo Spiral b) Paper Points c) Endodontic Irrigating Syringe d) Gutta- Percha 20) តេីមុខងាររបស់ Edodontic Spreader គឺអ្វីជ្រេីសរេីសចម្លេីយ១: a) To help condense gutta percha lateral in canal b) To help condense gutta percha vertical in canal c) To carry and place material into tooth 21) Dental Dam Punch តើចម្លើយមួយណាសំរាប់ចោះ Dental dam ដាក់លើធ្មេញ molars: a) No.2 b) No.3 c) No.4 d) No.5 22) គុណសម្បត្តិរបស់Dental Dam មាន: a) អ្នកជំងឺហាមាត់បានតិច b) កាត់បន្ថយការចំលងមេរោគ c) ជួយការពារកុំឲ្យអ្នកជំងឺលេបរឺធ្លាក់សម្ភារៈចូលបំពងក d) កាត់បន្ថយការចំលងមេរោគ and ជួយការពារកុំឲ្យអ្នកជំងឺលេបរឺធ្លាក់សម្ភារៈចូលបំពងក 23) តើEndodontic Explorer មានតួនាទី: a) To curette inside of tooth to base of pulp chamber b) To smooth amalgam after condensing c) To grasp and lock material for transfer into and out of oral cavity d) To locate opening of small canal orifices or endodontics procedure 24) រកចម្លើយត្រូវមួយរបស់Endodontic File – K Type : a) To clean inside wall of canal b) To enlarge and smooth inner wall of canal c) To cut and smooth dentinal walls of canal d) To hold endodontic files and reamers 25) តើElastic Separators ដាក់លើធ្មេញលេខណា: a) Molar b) Premolars c) Molars and premolars d) Cuspid 26) តួនាទីរបស់របស់Orthodontic Hemostat: a) To grasp tissue or bone fragments b) To hold during surgical procedure c) To tie in ligature to arch wire d) To hold and place separators or tie ligatures to arch wire 27) តើមូយណាមុខងាររបស់ Tissue Forceps : a) To cut tissue b) To hold blade in place c) To cut tissue with blade d) To hold tissue during surgical procedures 28) តើមួយណាជាមុខងាររបស់ Furcation Probe : a) To measure periodontal pocket depth in millimeter increments b) To measure horizontal and vertical pocket depth of multi root teeth in furcation areas c) To remove bon adjacent to teeth without causing trauma 29) រកចម្លើយត្រូវមួយ របស់ ឧបករណ៏ Luxating Elevator: a) To cut periodontal ligaments before extraction b) To separate and lift tooth from socket c) To loose tooth from periodontal ligaments before extraction 30) រកចម្លើយខុសមួយ របស់ ឧបករណ៏Root elevators: a) To loosen root b) To use on posterior teeth c) To lift and remove fragments of root d) To separate and lift root from socket 31) មុខងាររបស់ Rongeurs: a) To trim and remove excess alveolar bone after extraction of teeth b) To remove or smooth rough edges of alveolar bone c) To contour alveolar bone after single or multiple extractions 32) មុខងាររបស់ Diamond Bur- Wheel : a) To reduce a tooth for crown preparation for subgingival margins b) To reduce a tooth for crown preparation on lingual aspect of anterior teeth c) To reduce bulk of incisal edges d) To reduce a tooth for crown preparation for subgingival margins and To reduce a tooth for crown preparation on lingual aspect of anterior teeth e) To reduce a tooth for crown preparation on lingual aspect of anterior teeth ,To reduce bulk of incisal edges 33) តើ Enamel Hatchet គេប្រើចលនាយ៉ាងម្តេច: a) Pulling motion b) Push motion c) Cutting edge at an angle 34) What is function to form or accentuate line angles in cavity preparation : a) Straight Chisel b) Binangle Chisel c) Enamel Hoe d) Angle Former 35) តើHigh –Speed Handpiece មានប៉ុន្មានបែប: a) 4 b) 5 c) 6 d) 3 36) មុខងារមួយណាប្រើសំរាប់Disposable prophy cup: a) For polishing occlusal surfaces b) For polishing deep grooves on lingual surfaces of anterior teeth c) For polishing all surfaces of teeth d) For polishing occlusal surfaces and For polishing deep grooves on lingual surfaces of anterior teeth 37) ចូលជ្រើសរើសមុខងាររបស់Surgical Electrical Hand piece Unit: a) To use with bur for intraoral cavity preparation b) To use with endodontics nickel –titanium rotary instruments c) To use with depth drills for implants d) To use for class I or class VI cavity preparation 38) តើចម្លើយ១របស់មុខងាររបស់Laser Handpiece Unit: a) To remove lesion or tumor b) To use for preparation of occlusal surface for sealants c) To control bleeding d) To remove lesion or tumor and To use for preparation of occlusal surface for sealants e) To remove lesion or tumor and To control bleeding 39) តើមួយណាជាមុខងាររបស់Pear- Shaped Bur : a) To open tooth for a restoration and to remove caries! b) To remove caries c) To establish retention in tooth for cavity preparation d) To for inner walls of cavity preparation 40) តើមួយណាជាមុខងាររបស់Composite Disc: a) To contour restoration material b) To polish restorative material c) To polish or smooth restorative material d) To contour restoration material and To polish or smooth restorative material 41) តើមួយណាជាមុខងាររបស់ Composite Disc: a) To contour restoration material b) To polish restorative material c) To polish or smooth restorative material d) To contour restoration material and To polish restorative material e) To contour restoration material and To polish or smooth restorative material 42) តើពណ៌មួយណារបស់ Rubber Pointsដែលសឹកខ្លាំងជាងគេ a) Brown points b) Green point c) White point 43) ចូរជ្រើសរើសចម្លើយមួយរបស់ឧបករណ៍ Composite Disc: a) To Contour restorative material b) To polish restorations , amalgam , composite and gold c) To polish or smooth restorative material d) To Contour restorative material and To polish or smooth restorative material 44) តើចម្លើយមួយណាជាInverted Cone Bur : a) To cut cavity preparation b) To form inner walls of cavity preparation c) To remove caries d) To establish retention in tooth for cavity preparation e) To remove caries and To establish retention in tooth for cavity preparation 45) តើចម្លើយមួយណាជា Tapered Fissure Bur – Crosscut: a) To finish composite restoration b) To place retention grooves in walls of cavity preparation c) To form angles in walls of cavity preparation d) To finish composite restoration and To form angles in walls of cavity preparation e) To place retention grooves in walls of cavity preparation and To form angles in walls of cavity preparation 46) តើចម្លើយមួយណាជាDiamond 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 for subgingival margins c) To reduce a tooth for crown preparation on lingual aspect of anterior teeth and to reduce bulk of incisal edge 47) តើមុខងាររបស់High- Volume (velocity) Evacuator ( HVE) Tip : a) To evacuate large volumes of fluid and debris from the oral cavity b) To evacuate smaller volumes of fluid from the oral cavity c) To evacuate fluid from oral cavity and surgical site d) To retract tongue during evacuation 48) រកចម្លើយខុស1របស់Electric Hand piece Unit and hand piece Attachments : a) To use with bur for intraoral cavity preparation b) To use with endodontic nickel – titanium rotary instruments c) To use with depth drills for implants d) To use with bur for trimming of provisional crowns 49) រកចម្លើយខុស1របស់Inverted Cone Bur: a) To form inner walls of cavity preparation b) To cut retention cavity preparation c) To establish retention in tooth for cavity preparation d) To finish composite restoration 50) ចូរជ្រើសរើសមុខងាររបស់Laboratory Bur- Diamond Disc : a) To contour or cut models in the laboratory b) To be used on dental tray setups c) To cut models or trim acrylic in laboratory 51) តើAnterior Clamp ដាក់លើធ្មេញណាខ្លះ a) Used only on anterior teeth b) Used is determined by tooth size c) Used on right or left posterior molars 52) Function for Dental Dam Frame : a) To anchor and stabilize dental dam b) To anchor c) To hold dental dam away from teeth 53) ចូរ ជ្រើសរើស​ចម្លើយខុស1របស់Condenser a) To pack and condenser amalgam into cavity preparation b) To pack and condenser temporary filling material c) To carry and dispense amalgam for cavity preparation d) To pack and condenser amalgam into interproximal areas of cavity preparation 54) មុខងាររបស់Woodson: a) To carry and place temporary restorative material for cavity preparation b) To contour and carve occlusal and interproximal anatomy in amalgam restorations c) To carve occlusal anatomy into amalgam rstorations d) To carry and place temporary restorative material for cavity preparation and To contour and carve occlusal and interproximal anatomy in amalgam 55) ចូរជ្រើសរើសចម្លើយត្រូវ1 របស់Matrix Band Retainer: a) To replace missing proximal wall or walls of cavity preparation for condensation of restorative material for  b) class II preparation c) To maintain stability of matrix band during condensation of restorative material for class II preparation d) To hold matrix band in place along gingival margin of class II, class III or class preparation 56) ចូរជ្រើសរើសចម្លើយត្រូវ1របស់Amalgam Well a) To hold amalgam before it is placed in preparation b) To hold amalgam while loading amalgam carrier c) To mix alloy and mercury into amalgam in a capsule 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 and To mix alloy and mercury into amalgam in a capsule 57) ចូរជ្រើសរើសចម្លើយខុស1របស់Composite Placement Instruments: a) To form occlusal anatomy in composite restorations b) To carry composite material in cavity preparation c) To apply conditioning, primer, and bonding material to cavity preparation 58) Function for Finishing Strip: a) To hold material etchant, bonding, and composite b) To harden light cured material bonding, and composite, sealants, build-up material c) To finish and smooth interproximal surface of restoration d) To hole 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 59) ចូរជ្រើសរើសចម្លើយត្រូវ1 របស់Endodontic Long- Shank Spoon Excavator: a) To remove carious dentin b) To curet inside of tooth to base of pulp chamber c) To remove temporary cement in temporary restoration 60) រកចម្លើយត្រូវ1 របស់រូបរាងFile – K Type a) Twisted design- more twists per millimeter than reamer b) Triangular cutting edge c) Twisted triangular cutting edge 61) តើ Reamer ប្រើmotion អី a) Used with twisting motion b) Used with push – pull motion c) Used to cut and smooth dentinal walls of canal 62) Hand cutting instruments are composed of: a) Handle and neck b) Handle and blade only c) Handle , shank and blade d) Handle , neck and shank e) Handle, neck, shank and blade. 63) Use of water spray during cutting procedures have following advantages: a) Dehydration of oral tissues b) Tooth restorative material and other debris are carried away. c) Pulp is protected from heat d) Clean view of cavity can be achieved e) Bacterial contamination controlled. 64) Biologically active sealer which promote peri-apical healing contain: a) 2no Engenol b) Cortico- steroids c) Ca(OH)2 d) Silver-points e) Zinc phosphate 65) Diamonds are superior to bur for cutting a) Cementum b) Dentine c) Enamel d) Soft tissues e) Carries 66) For the extirpation of entire pulp, necrotic debris, and foreign material, one should use: a) Reamers b) Files c) Barbed Broaches d) Bures e) Plain broaches 67) Needle used for infiltration is: a) 30 gauge b) 25 gauge c) 27gauge d) 16 gauge 68) Most common complication after tooth extraction is: a) Bleeding b) Alveolar osteitis c) Infection d) Swelling 69) Local anesthetic solution with highest tissue irritancy is : a) Procaine b) Lignocaine c) Bupivacaine d) Mepivacaine 70) How can you identify bon the floor of the pulp Chamber in molar: a) It is smooth b) It is grey c) It is dark brown  d) It is hard 71) Endodontic Plugger is used in: a) To remove an obturation b) To introduce a filling material in caries cavity c) To condense gutta percha vertically in canal d) To mix filling materials 72) Dental mouth Mirror can be: a) Concave b) Convex c) Biconcave d) Biconvex 73) Laboratory Spatula is used for : a) Scaling b) Removing of food debris and dentin c) To mix powder and liquid in a flexible bowl d) Mix material for impression 74) Necessary instruments for patient examination are : a) Basic dental instruments b) Dental spatula c) Burs d) Peso File 75) Function for used of Wheel Burs are: a) To reduce a tooth for crown preparation for subgingival margins b) Remove of cyst c) Removal of temporary filling d) To reduce a tooth for crown preparation on lingual aspect of anterior teeth 76) Matrix Band used for a) Finishing the obturation b) To replace missing proximal wall c) Creation the contact point d) Introduction filling material in cavity 77) Which groups of instruments are used in endodontic: a) Instruments for root canal filling b) Instruments for finishing strip c) Instruments for interproximal Condenser d) Enamel cutting instruments 78) ចូរជ្រើសរើសពាក្យត្រូវ1 របស់non resorbable suture material a) Suture Silk b) Suture Polyglycolic( PGA) c) Chromic gut 79) ចូរជ្រើសរើសចម្លើយត្រឹមត្រូវ a) Paper point b) Gutta- Percha c) Lentulo Spiral 80) ចូរអោយឈ្មោះសំភារៈខាងក្រោម a) Endodontic Spreader b) Endodontic Plugger c) Glick Instrument 81) ចូរអោយឈ្មោះសំភារៈខាងក្រោម a) Lentulo Spiral  b)  Peso file c)  Reamer 82) ចូរអោយឈ្មោះសំភារៈខាងក្រោម a) Endodontic File K  b)  Broach c)  Endodontic File – Hedstrom 83) ចូរអោយឈ្មោះសំភារៈខាងក្រោម a) Composite Placement Instrument  b)  Composite Burnisher c)  Well for composite Material 84) ចូរអោយឈ្មោះសំភារៈខាងក្រោម a) Applicator  b)  Finishing Strip c)  Wooden Wedges 85) ចូរអោយឈ្មោះសំភារៈខាងក្រោម a) Condenser ( plugger)  b)  Interproximal Condenser c)  Burnishers 86) ចូរអោយឈ្មោះសំភារៈខាងក្រោម a) Woodson  b)  Hollenback Carvers c)  Discoid- Cleoid Carve 87) ចូរអោយឈ្មោះសំភារៈខាងក្រោម a) Dental Dam Stamp  b)  Dental Dam Frame c)  Dental Dam Template 88) ចូរអោយឈ្មោះសំភារៈខាងក្រោម a) Premolar Clamp  b)  Anterior Clamp c)  Universal Clamp 89) ចូរអោយឈ្មោះសំភារៈខាងក្រោម a) Elastic Separating Pliers  b)  Elastic Separators c)  Orthodontic Band 90) ចូរអោយឈ្មោះសំភារៈខាងក្រោម a) Band Pusher  b)  Plugger with Scaler c)  Band Seater Bite Stick 91) ចូរអោយឈ្មោះសំភារៈខាងក្រោម a) Pear Shaped Bur  b)  Straight Fissure Bur c) Inverted Cone Bur 92) ចូរអោយឈ្មោះសំភារៈខាងក្រោម a) Diamond Bur – flame b) Diamond Bur – Wheel c) Finishing Bur 93) ចូរអោយឈ្មោះសំភារៈខាងក្រោម a) Periodontal Probe b) Furcation Probe c) Hoe 94) ចូរអោយឈ្មោះសំភារៈខាងក្រោម a) Interdental File b) Interdental Knife – spear Point c) Back Action Hoe 95) ចូរអោយឈ្មោះសំភារៈខាងក្រោម a) Root Elevators b) Root – Tip Elevator c) Luxating Elevator 96) ចូរអោយឈ្មោះសំភារៈខាងក្រោម a) Rongeurs b) Bone file c) Surgical Chisel 97) ចូរអោយឈ្មោះសំភារៈខាងក្រោម a) Mandibular Anterior Forceps b) Maxillary Root Firceps c) Maxillary Universal Forceps 98) ចូរអោយឈ្មោះសំភារៈខាងក្រោម a) Hemotat b) Needle Holder c) Suture Scissor 99) រូបភាពនេះជាអ្វី? a) Tooth pick b) Wooden wedges c) Interdental pick 100) រូបភាពនេះជាអ្វី? a) Cryers b) Warrick James elevator c) Couplands Chise

Dental Instrument 1-100

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