Operative Dentistry Quick Quiz → Dentist

01.Hand cutting instruments are composed of:

Handle and neck

Handle and blade only

Handle, shank and blade

Handle, neck and shank

Handle, neck, shank, and blade

Correct! Wrong!

02.Use of water spray during cutting procedures have following advantages:

Dehydration of oral tissues

Tooth restorative material and other debris are carried away

Pulp is protected from heat

Clean view of cavity can be achieved

Bacterial contamination controlled

Correct! Wrong!

03.G.V. Black concluded that the following areas on tooth surface are relatively non self cleanable:

Pits and fissures

Tips and cusps

Crests of marginal/ crusing ridges

All inclined planes of cusps and ridges

Fossae

Correct! Wrong!

04.Senile carious lesions are most commonly found exclusively on the following areas of the teeth:

Pits and fissures

Occlusal, incisal, facial and lingual embrasures

Inclined planes of cusps

Root surfaces of teeth

Interdental surfaces

Correct! Wrong!

05.The main advantage in developing high copper amalgam alloy is:

Elimination of gamma 1 phase

Increase the strength of amalgam

Decrease the flow value of amalgam

Elimination of gamma phase 2

Reduce the conductivity of amalgam

Correct! Wrong!

06.In a cavity preparation cavo-surface margin will be junction between:

Cavity wall/ floor and adjacent tooth surface.

Cavity wall and floor

Floor of occlusal box and approximial box

Approximial wall of one tooth with another

Axial wall and occlusal floor

Correct! Wrong!

07.The optimum depth of a self threading pin for an amalgam restoration is:

0.5 mm

1 mm

2 mm

4 mm

5 mm

Correct! Wrong!

08.Diamonds are superior to bur for cutting:

Cementum

Dentine

Enamel

Soft tissues

Carries

Correct! Wrong!

09.Class III amalgam restorations are usually prepared on:

Distal surfaces of anterior teeth

Mesial surfaces of canine

Distal surfaces of canine

Distal surfaces of incisors and mesial surfaces of canine

Mesial and distal surfaces of all the teeth

Correct! Wrong!

10.The final finishing of silicate/ glass ionomers restoration is done after:

7½ minute

24 hours

30 minutes

1 hour

1 minute

Correct! Wrong!

11.Pits and fissure sealants are usually derived from:

BIS-GMA resin

Polyurethanes

Zinc phosphate

Both A and B

Ataconic acid

Correct! Wrong!

12.Instruments used for handling resins are made of:

Stainless steel

Carbon steel

Teflon coated metal

Platinum

Gold

Correct! Wrong!

13.Tooth surfaces involved in class II design 6 are:

Occlusal, proximal, part of facial and lingual surfaces

Occlusal, facial and lingual surfaces

Proximal and facial/ lingual surfaces

Proximal, axial angle and facial cervical

Two or more surfaces of endodontically treated tooth

Correct! Wrong!

14.In class V design 3 cavity preparation, extension look like:

Y

Snake eye

Moustache

Dove-tail

Kidney shape

Correct! Wrong!

15.Toilet of cavity is:

Removal of debris by washing with H2O

Removal of debris by cold air spray

Removal of debris by hot air spray

Washing the cavity with soap solution

Washing the cavity with medicament

Correct! Wrong!

16.Most common fracture occurring in amalgam restoration is seen at:

Cavosurface margin

The contact area

The isthmus area

Proximal box

Gingival floor

Correct! Wrong!

17.The most widely used irrigant displaying optimal cleansing bactericidal properties is:

Formouresol

Sodium Hypochlorite

Saline

Hydrogen peroxide

Gultraldehyde

Correct! Wrong!

18.Pain on percussion before endodontic treatment indicates:

Reversible pulpitis

Irreversible pulpitis

Pulp necrosis

Inflammation of periodontal tissues

Exposed dentine

Correct! Wrong!

19.For the extirpation of entire pulp, necrotic debris, and foreign material, one should use :

Raemers

Files

Barbed broaches

Bures

Plain broaches

Correct! Wrong!

20.In RCT, over preparation of the outer wall of the optical curvature of the canal with inflexible instrument will cause:

Zipping

Perforation

Elbow formation

Ledge formation

Crazing

Correct! Wrong!

21.While examining the RCT done by other dentist, you find a case where the radiograph shows densely packed gutta percha in coronal third but poorly packed in apical third, the most likely cause is:

Excessive packing of dentine chips in apical one third

Failure to coat accessing cones with sealers

Failure to obtain proper depth of penetration with compacting instrument.

Tool much root canal sealer

Use of accessory cones with fine tips

Correct! Wrong!

22.A patient presents wet a draining sinus tract in labial vestibule of a maxillary central incisor. To confirm your diagnosis about the origin of pathosis you should:

Open the concerned root chamber

Taking the bite-wing radiograph

Thread gutta-percha through the root canal and expose the radiograph

Thread the gutta-percha through the tract and expose a radiograph

Measure the periodontal packet

Correct! Wrong!

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

K file

H file

Flexo file

S file

Rat tail type

Correct! Wrong!

24.A young 12 years old boy presents with reddish over-growth of tissue, protruding from carious exposure in lower molar. What may be the possible diagnosis?

Pulp polyp

Pulpal hyperemia

Varicosed polyp

Pulpal granuloma

Gum boil

Correct! Wrong!

25.An 8 years old boy presents with class III fracture of tooth# 11, which appeared an hour ago, the apex is not closed. Your treatment should be:

Direct pulp capping with Ca (OH)2

Pulpectomy follows by RCT

Pulpotomy and fill with Ca (OH)2

Smoothening of ledges and restore with composite

Restoration with Glass ionomer cement.

Correct! Wrong!

26.What is the space between the lateral incisors and canine called in maxillary decidous teeth?

Leeway space

Primate space

Freeway space

Bolton space

Interdental space

Correct! Wrong!

27.The recommended concentration of fluoride in communal water supply is:

0.1 ppm

0.5 ppm

1.0 ppm

2.0 ppm

5 ppm

Correct! Wrong!

28.The pulp chamber in milk teeth in proportion to that of permanent teeth is :

Bigger in milk teeth

Smaller in milk teeth

Same in both teeth

Absent in milk teeth

Less vascular in milk teeth

Correct! Wrong!

29.The treatment of choice for vital, wide apex tooth which shows pulp exposure is:

Pulpotomy

Pulpectomy

Apexification

Apenogenesis.

Indirect pulp capping

Correct! Wrong!

30.What is the common cause of failure of pulpotomy, that employs Ca(OH)2 in primary molars?

Pulp fibrosis

Pulp calcification

Ankylosis

Internal resorption

Profused bleeding

Correct! Wrong!

31.The walking bleach technique is:

Use heat treatment

Requires patients to report in 24 hours

Can be done in poorly obtuated canals

Uses mixtures of sodium perborate and 3% hydrogen peroxide

Tooth stain remover (Hydrochloric acid)

Correct! Wrong!

32.Recapitulation is:

Uses successively larger files to flare the canals

Removing the debris with smaller instruments than the instruments that go to apex

Circumferential filing with H files

Using various types of files and reamers to enlarge canals

Irrigation of canals with sodium hypochlorite

Correct! Wrong!

33.Biologically active sealer which promote peri-apical healing contain:

2nO Engenol

Cortico-steroids

Ca(OH)2

Silver-points

Zinc phosphate

Correct! Wrong!

34.In aesthetic dentistry, colour of the tooth is:

Hue

Chroma

Value

Translusency

Prismatic effects

Correct! Wrong!

35.Post crown is indicated in the following case:

Insufficient coronal tooth portion

Loss of enamel but dentine is still left in crown

Insufficient root portion of tooth

Middle third fracture of root

Erosion of tooth substance

Correct! Wrong!

36.A stabilized root fracture with evidence of hyper-calcification of pulpal space requires:

No further treatment

Endotherapy with gutta percha

Endotherapy with Ca(OH)2

Surgical removal of apical segment

Post retained crowny

Correct! Wrong!

37.While making a crown for erosion of tooth substance, ideal choice of crown is:

Porcelain crown

Metal crown

Porcelain fused metal crown

Acrylic crown

Partial crown

Correct! Wrong!

38.In patients showing generalized attrition, normal treatment prior to crown preparation is:

Desensitization of crown of tooth

Periodontal surgery

Sealing

Conventional root canal treatment

Crown built up with composite

Correct! Wrong!

39.Temporary crown/ bridges are made to last for short period of time to:

Protect prepared dentine

To maintain appearance

To prevent tilting/ over eruption of prepared tooth

Maintain occlusion

Improve masticatry process

Correct! Wrong!

40.Identify the macromechanical minimal preparation bridge:

Resin bounded bridge

Adhesive bridge

Maryland bridge

Conventional bridge

Rochette bridge.

Correct! Wrong!

41.How many surfaces does the pontic has:

Three

Four

Five

Seven

Two

Correct! Wrong!

42.Cast, soldered and porcelain are three types of:

Fixed connectors

Moveable connectors

Partial connectors

Both A and B

Temporary connectors

Correct! Wrong!

43.A good treatment plan in planning the bridge is:

To inform the patient about present condition extent of proposed treatment time and cost

Not to tell anything to the patient

Patients detailed past dental history

Patient must know about drawbacks of treatment

The patient should be only told the minimum possible things mainly about time and cost

Correct! Wrong!

44.Which crown will have the maximum retention:

Full cast crown

3/4 crown and no grooves

3/5 crown and groove

7/8 crown and groove

Post retain crown

Correct! Wrong!

45.Tooth buds generally initiated after birth are :

Entire permanent dentition

All permanent and some primary teeth

First and second premolars only and second and third molars only

It is very variable

Lower central incisors only

Correct! Wrong!

Operative Dentistry Quick Quiz

01.Hand cutting instruments are composed of:

02.Use of water spray during cutting procedures have following advantages:

03.G.V. Black concluded that the following areas on tooth surface are relatively non self cleanable:

04.Senile carious lesions are most commonly found exclusively on the following areas of the teeth:

05.The main advantage in developing high copper amalgam alloy is:

06.In a cavity preparation cavo-surface margin will be junction between:

07.The optimum depth of a self threading pin for an amalgam restoration is:

08.Diamonds are superior to bur for cutting:

09.Class III amalgam restorations are usually prepared on:

10.The final finishing of silicate/ glass ionomers restoration is done after:

11.Pits and fissure sealants are usually derived from:

12.Instruments used for handling resins are made of:

13.Tooth surfaces involved in class II design 6 are:

14.In class V design 3 cavity preparation, extension look like:

15.Toilet of cavity is:

16.Most common fracture occurring in amalgam restoration is seen at:

17.The most widely used irrigant displaying optimal cleansing bactericidal properties is:

18.Pain on percussion before endodontic treatment indicates:

19.For the extirpation of entire pulp, necrotic debris, and foreign material, one should use :

20.In RCT, over preparation of the outer wall of the optical curvature of the canal with inflexible instrument will cause:

21.While examining the RCT done by other dentist, you find a case where the radiograph shows densely packed gutta percha in coronal third but poorly packed in apical third, the most likely cause is:

22.A patient presents wet a draining sinus tract in labial vestibule of a maxillary central incisor. To confirm your diagnosis about the origin of pathosis you should:

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

24.A young 12 years old boy presents with reddish over-growth of tissue, protruding from carious exposure in lower molar. What may be the possible diagnosis?

25.An 8 years old boy presents with class III fracture of tooth# 11, which appeared an hour ago, the apex is not closed. Your treatment should be:

26.What is the space between the lateral incisors and canine called in maxillary decidous teeth?

27.The recommended concentration of fluoride in communal water supply is:

28.The pulp chamber in milk teeth in proportion to that of permanent teeth is :

29.The treatment of choice for vital, wide apex tooth which shows pulp exposure is:

30.What is the common cause of failure of pulpotomy, that employs Ca(OH)2 in primary molars?

31.The walking bleach technique is:

32.Recapitulation is:

33.Biologically active sealer which promote peri-apical healing contain:

34.In aesthetic dentistry, colour of the tooth is:

35.Post crown is indicated in the following case:

36.A stabilized root fracture with evidence of hyper-calcification of pulpal space requires:

37.While making a crown for erosion of tooth substance, ideal choice of crown is:

38.In patients showing generalized attrition, normal treatment prior to crown preparation is:

39.Temporary crown/ bridges are made to last for short period of time to:

40.Identify the macromechanical minimal preparation bridge:

41.How many surfaces does the pontic has:

42.Cast, soldered and porcelain are three types of:

43.A good treatment plan in planning the bridge is:

44.Which crown will have the maximum retention:

45.Tooth buds generally initiated after birth are :

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