Endodontics Test

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Endodontics Test

1 / 60

Etiology of acute reversible pulpitis is:

a. dental caries

b. crown fracture

c. cavity preparation

d. dental caries and cavity preparation

2 / 60

Access cavity of mandibular central incisor is :

a. Triangular with the base toward the border libre and apex toward the distal

b. Triangular with the base toward the border libre and apex toward the mesial

c. Oval is wider mesial-distal

d. Oval is wider buccal-lingual

3 / 60

Evaluation of thermal test results:

a. Strong but brief irrevesible

b. All are corrects

c. Strong but brief normal

d. Strong but brief reversible

4 / 60

Function of electric pulp test:

a. Used to measure apex

b. Used to test the vitality of pulp

c. All are corrects

d. Used to measure working length

5 / 60

Access opening on premolars with multiple canal :

a. រាងជាពងក្រពើ

b. រាងជាប្រលេឡូក្រាម

c. រាងជាត្រីកោណ

d. រាងជាការ៉េ

6 / 60

Average age of eruption mandibular second premolar:

a. 11-12 years6-7 years

b. 8-9 years

c. 7-8 years

7 / 60

Function of lentulo :

a. Used to place materials into the canal by low speed=2000-3000t/mn

b. Used to place materials into the canal by low speed=3000-6000t/mn

c. Used to place materials into the canal by low speed=4000-8000t/mn

d. Used to place materials into the canal by low speed=1000-2000/mn

8 / 60

paralleling technique:

a. film place parallel to the long axis of the tooth and the X ray pass perpendicular to the long axis of the tooth

b. the X ray pass perpendicular to the angular bisector of the tooth

c. film place parallel to the long axis of the tooth

d. the X ray pass perpendicular to the long axis of the tooth

9 / 60

Function of finger spreader :

a. To probe the orifice of the pulp chamber

b. To condense gutta-percha lateral the canal during obturation

c. To condense gutta-percha vertical the canal during obturation

d. To probe the orifice of the root canal

10 / 60

Pulp chamber ស្ថិតនៅខាងក្នុង នៃផ្នែកតួធ្មេញដែលរួមមាន:

a. Roof and floor

b. pulp horn , roof and floor of pulp chamber

c. Pulp horn and roof of pulp chamber

d. Furcation canal and floor of pulp chamber

11 / 60

Disadvantages of technique dam first:

a. Small mouth

b. Grossly carious teeth

c. Save time

d. Psychology

12 / 60

Advantages of step back technique :

a. Working Length likely to change as canal curvatures are eliminated

b. Easy to remove debris

c. Chances of pushing debris into peri-radicular tissuesChances of pushing debris into peri-radicular tissues

d. Keep apical prep small in its original position-gradual tape

13 / 60

Disadvantage of vertical condensation technique :

a. It prevent overfilling by length control during condensation

b. Time consuming

c. Risk of vertical root fracture

d. It may fill the canal irregularities

14 / 60

Contraindication of indirect pulp capping :

a. No spontaneous pain

b. No mobility of the tooth

c. Reaction of electric pulp testing

d. Definite pulp exposure

15 / 60

Contraindication for endodontic:

a. External root resorption

b. Internal root resopi

c. Tooth abscees

d. Esthetic

16 / 60

Advantages of rubber dam :

a. Takes time to be applied

b. Prevents any aspiration or ingestion of dental instrument

c. Psychology

d. Save time

17 / 60

Indications of direct pulp capping:

a. Small exposures less than 2mm

b. Small exposures less than 3mm

c. Small exposures less than 1mm

d. Small exposures less than 4mm

18 / 60

Mandibular canine has :

a. 1 root & 1 canal 70%

b. 1 root & 1 canal 100%

c. 1 root & 2 canals 80%

d. 1 root &2 canals 50%

19 / 60

Furcation canal គឺជា រន្ធបន្ថែមមានប្រភពចេញពី :

a. Pulp horn

b. Floor of pulp chamber

c. Roof of pulp chamber

d. Apex

20 / 60

Treatment of chronic hyperplastic pulpitis (pulp polyp) :

a. Root canal treatment

b. Pulp capping

c. Pulpotomy

d. Remove the cause

21 / 60

Disadvantages of step back technique :

a. It reduces pressure

b. No better tactile awareness

c. Chances of pushing debris into peri-apical

d. No avoids zipping

22 / 60

Scope of endodontics :

a. Non strategic tooth

b. Massive internal or external resorption.

c. Reimplantation of avulsed or subluxed teeth

d. Root fracture.

23 / 60

Contraindications of indirect pulp capping is:

a. pulpitis

b. Discoloration of tooth

c. Sharp , acute pulpal inflammation and Discoloration of tooth

d. Sharp , acute pulpal inflammation

24 / 60

Contraindication of rubber dam:

a. Recently erupted tooth

b. Patiens small mouth

c. Recently erupted tooth, Grossly carious teeth, Patiens small mouth

d. Grossly carious teeth

25 / 60

Hydrogen peroxide 10 volume ហាមប្រើចំពោះ :

a. ធ្មេញមានស្នាមប្រេះ

b. Fracture of root

c. ធ្មេញមានបញ្ហាចុងឬស (granuloma)

d. ធ្មេញ deep caries

26 / 60

Step back technique :

a. The instruments are used in a small to large sequence

b. The instruments are used in one size

c. Use by gate

d. The instruments are used in a large to small sequence

27 / 60

Palpation:

a. could not give us the state of the pulp

b. All are corrects

c. not diagnostic , when infection confined to pulp (abcess)

d. could not give us the size of the swelling

28 / 60

Orifice គឺជារុន្ធ:

a. ស្ថិតនៅត្រង់ចំណុចconstriction

b. របស់root canal ដែលស្ថិតនៅក្រោមcervical នៃធ្មេញប្រហែល1mm-2mm

c. បន្តចេញពី root canal

d. ស្ថិតនៅចុងនៃ apex

29 / 60

Disadvantage of lateral condensation technique :

a. It prevent overfilling by length control during condensation

b. It can by widely in most cases

c. It may fill the canal irregularities

d. Save time

30 / 60

Clinical signs of acute reversible pulpitis:

a. All are corrects

b. percussion is generally negative response

c. tooth mobility

d. spontaneous pain

31 / 60

Contraindications of indirect pulp capping is:

a. Small exposures less than 1mm

b. Small exposures less than 2mm

c. Negative reaction of electric pulp testing

d. Small exposures less than 1mm and Small exposures less than 2mm

32 / 60

speed of lentulo is:

a. 6000-7000tmn

b. 3000-6000t/mn

c. 8000-9000t/mn

d. 7000-8000t/mn

33 / 60

Access cavity of mandibular lateral incisor is :

a. Triangular with the base toward border libre and apex toward distal

b. Triangular with the base toward the border libre and apex toward cingulum

c. Oval is wider mesial-distal

d. Oval is wider buccal-lingual

34 / 60

Surgical endodontics :

a. Preventive endodontic.

b. Root amputation

c. To retain a suitable restoration.

d. Pulpotomy.

35 / 60

Action of reamer:

a. O`clock wise quarter turn twist

b. O`clock wise quarter turn twist and O`clock wise half turn twist

c. Withdrawal

d. O`clock wise half turn twist

36 / 60

Constriction is:

a. Apical apex

b. Anatomical apex

c. Apex physiological

d. Apical apex and Anatomical apex

37 / 60

Disadvantages of crown down technique :

a. Increased removal of tooth structure

b. Holds greater volume of irrigate – enhances cleaning.

c. It reduces pressure

d. Save time

38 / 60

Access cavity of mandibular second premolar is :

a. Triangular with the base toward the border libre and apex toward the distal

b. Triangular with the base toward the border libre and apex toward the mesial

c. Oval is wider buccal-lingual

d. Oval is wider mesial-distal

39 / 60

Anatomical apex ស្ថិតនៅចុងនៃ:

a. Furcation canal

b. Horn cementum of root

c. Lateral canal

d. Pulp horn

40 / 60

Indication of indirect pulp capping is:

a. Mild pain associated with eating

b. No pulp exposure and Mild pain associated with eating

c. Spontaneous toothache

d. No pulp exposure

41 / 60

Tooth decay is caused by :

a. traumatic injury

b. cracked tooth and traumatic injury

c. cracked tooth

d. bacteria

42 / 60

Action of H-file is :

a. O`clock wise 1/2 turn twist

b. All are corrects

c. O`clock wise 1/4 turn twist

d. Withdrawal

43 / 60

Vertical condensation is:

a. Technique compact gutta-percha by horizontal root

b. Technique compact gutta-percha against the canal wall

c. Technique compact gutta-percha by heat the plugger

d. All are corrects

44 / 60

Contraindication of endodontics:

a. Internal resorption and Teeth with external root resorption

b. Internal resorption

c. Teeth with vertical root fracture

d. Teeth with external root resorption

45 / 60

Function of tirenerf :

a. Enlarge the root canal

b. Remove the pulp

c. Remove gutta-percha

d. Working length

46 / 60

Pulp chamber :

a. ចំពោះធ្មេញកូនក្មេង Pulp Chamber រួម តូច

b. រួមតូចបន្តិចម្តងៗទៅតាមអាយុកាលរបស់វា

c. មិនទៀងទាត់

d. ចំពោះធ្មេញមនុស្សចាស់ Pulp Chamber រីកធំ

47 / 60

function of excavator:

a. enlarge canal

b. excavate periapical lesion

c. curettage of the pulp chamber and excavate periapical lesion

d. curettage of the pulp chamber

48 / 60

Contraindication of direct pulp capping:

a. Deep caries

b. Pain by cold

c. Excess bleeding at the exposure site (uncontrolled bleeding).

d. Pain by hot

49 / 60

Average age of eruption mandibular central incisor is:

a. 12-13years

b. 6-7years

c. 11-12years

d. 8-9 years

50 / 60

Indication of indirect pulp capping is:

a. No internal or external root resorption detectable radiographic

b. All are corrects

c. Small exposures less than 1mm

d. Small exposures less than 2mm

51 / 60

Apex locator used to determine:

a. reversible pulpitis and irreversible pulpitis

b. irreversible pulpitis

c. distance to the apical foramen

d. reversible pulpitis

52 / 60

ការរៀបចំផ្នែក1/3 collar ត្រូវប្រើ:

a. Gate

b. Cylinder burs

c. all are corrects

d. Endo-Z

53 / 60

Canal lateral គឺជា រន្ធបន្ថែមមានប្រភពចេញពី :

a. Foramen

b. Pulp chamber

c. Canal principal

d. Roof of pulp chamber

54 / 60

Clinical signs of acute irreversible pulpitis :

a. No spontaneous pain

b. Spontaneous pain

c. Response with hot

d. Percussion negative response

55 / 60

Reversible pulpitis is:

a. pulp hyperemia

b. closed pulpitis

c. pulp hyperplastic

d. pulp polyp

56 / 60

NaOCLប្រើក្នុងការសំអាតរន្ធឬសកើនឥទ្ធិពលពេលណា :

a. NaOCL2.5% + serum saline

b. NaOCL2.5% + Hydrogen peroxide

c. NaOCL2.5% + Calcium hydroxide

d. NaOCL2.5% + H2O

57 / 60

Justifications of indirect pulp capping is:

a. Continued normal root closure in immature permanent teeth

b. Reduction of anaerobic bacteria

c. Reduction of a potentially infected pulp

d. Continued normal root closure in immature permanent teeth and Reduction of anaerobic bacteria

58 / 60

Speed of gates:

a. 700t/mn

b. 1000t/mn

c. 300t/mn – 6000t/mn

d. 800t/mn

59 / 60

Etiology of pulpitis:

a. traumatic occlusion

b. tooth pain

c. dental caries and traumatic occlusion

d. dental caries

60 / 60

Anesthetic tests in endodontic is used when:

a. usual tests have failed

b. sensitivity with hot or cold

c. pain when biting down

d. discolouration of the tooth

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និស្សិតអាចប្រាប់មកកាន់ពួកយើងបានដើម្បីកែកំហុស ឬអំពីបញ្ហាដោយអចេតនាណាមួយដែលកើតមានកំឡុងពេលធ្វើតេស្ត