Prosthodontics Quick Quiz → Dentist

1.There are many landmarks in the oral cavity which helps in designing complete dentures. One of the important landmarks is fovea palatini. What is its relation to the vibrating line:

Behind the vibrating line

In front of vibrating line

On the vibrating line

Has no relation to vibrating line

sometimes this landmark does not exists

Correct! Wrong!

2.A patient presents for provision of complete dentures. Examination reveals an unfavorable ridge slope. What is the most likely reason:

He is a recent extraction case

He has been edentulous for a long time

He has had posterior teeth removed much before the anterior teeth

Unfavourable ridges are never seen

Submerged tooth may be present

Correct! Wrong!

3.The lower denture bearing area has different compressibility. Which in your opinion is the most compressible tissue in the lower arch;

Buccal shelf

Premylohoid region

Labial sulcus

Retromolar pad

Alveolar ridge

Correct! Wrong!

4.Surgical removal of a maxillary torus is indicated when?

The torus impinges on the soft palate

The torus is undercut

The torus extends so far posteriorly that it interferes with the posterior palatal seal

When it is psychologically disturbing to the patient who suffers from cancerphobia

All of the above

Correct! Wrong!

5.How will the alveolar ridge respond to a mandibular complete denture base that terminates short of retromolar pad:

Marked ridge resorption will occur

The apposition of bone on the ridge will occur

The alveolar ridge will not be affected at all

Soreness of the soft tissue

Fracture of the ridge may occur

Correct! Wrong!

6.The primary denture support area for a mandibular complete denture is:

The vestibule

The buccal shelf

The palatopharyngeal fold

The franulum

All of the above

Correct! Wrong!

7.There are many impression techniques which are used in recording impressions of the edentulous areas. Which impression technique will be used in a patient with a sharp mandibular ridge?

Minimum pressure impression technique

Selective pressure impression technique

Excessive pressure impression technique

All of the above of impression techniques

Correct! Wrong!

8.The position of the upper occlusal rim in the articulator is adjusted by:

Arbitrary means

By using a facebow

By adjusting the intercondylar distance

By adjusting the incisal pin

Visually

Correct! Wrong!

9.A loss in vertical dimension in complete denture will cause the mandible to move:

Backward in relation to upper jaw

Forward in relation to upper jaw

No change in the position of the jaws

Loss of vertical dimension is very rare

In eccentric movements

Correct! Wrong!

10.While recording the rest position of the mandible, the patient’s:

Head should be upright and unsupported

Head should be supported by the head rest

Patient should be lying in repose position

The neck should be extended

Head can be in any position

Correct! Wrong!

11.The correct bucco-lingual placement of the teeth plays animportant role in phonation. What should be the relationship of teeth and tongue in pronouncing “t” and “d” sounds:

The tongue will protrude forwards

Contact of the tip of the tongue with the anterior palate and lingual surfaces of the maxillary anterior teeth

The lips will contact with each other only

Constricted palate form

No relationship is present

Correct! Wrong!

12.Balanced occlusion in complete denture is essential:

For the patient to masticate properly

For the dentures to have adequate retention

To ensure even pressure in all parts of the arch, which maintains the stability of the dentures when the mandible is in centric and eccentric position.

Balanced occlusion is not essential in complete dentures

For aesthetic purposes

Correct! Wrong!

13.A patient is referred to the prosthodontist with complaint of a newly made denture which is loose and causes soreness even after repeated adjustments. What is the most important protocol to follow in such a case?

To check the occlusion

To take another impression denture immediately

To relieve the denture at the sore spots

To ask the patient to use denture fixatives

To tolerate the denture

Correct! Wrong!

14.A complete denture wearer, reports complaining of discomfort with his dentures. On examination it is observed that the posterior teeth are set edge to edge, without horizontal overjet, the possible discomfort may be:

Gagging

Cheek biting

Reduced taste

Speech aberrations

Lip biting

Correct! Wrong!

15.After the provision of complete denture the first review appointment for evaluating the new dentures should be carried out after:

03 hours after delivery

12 hours after delivery

24 hours after delivery

36 hours after delivery

48 hours after delivery

Correct! Wrong!

16.The oral muscular forces have a definitive effect, on the position of the mandible.What position will the mandible be braced during typical empty mouth swallowing?

The intercuspal position

The retruded contact position

The protruded contact position

Centric relation

Eccentric relation

Correct! Wrong!

17.An overextended disto buccal corner of a mandibular denture will push against which muscle during function:

Zygomaticus

Orbicularis

Temporalis

Masseter

Buccinator

Correct! Wrong!

18.Mandibular movement pattern of complete denture patients and those with natural teeth are:

Same

Mandibular movement in complete denture patients are completely different

Mandibular movement is slow in complete denture patients

Mandibular movement is frequent in complete denture patients

Mandibular movements are irregular in complete denture patients

Correct! Wrong!

19.Patients with complete dentures are advised to chew food on both sides of the mouth, but with food of tougher consistency,the patient preference for chewing changes and use:

Molar region for chewing

Premolar region for chewing

It makes no difference since chewing tough foods is not possible with complete denture

Anterior region for chewing

Patient avoids tough food

Correct! Wrong!

20.On a review appointment it is observed that there is deposition of calculus on one side of the denture. this indicates that:

The patient is not cleaning his denture on that side

The occlusion is not correct and patient the eats on one side only

The patient salivates too much

The patient continuously wears his dentures

No denture hygiene instructions were given to the patient

Correct! Wrong!

21.Kennedy classification is determined by:

The most anterior tooth missing

The first tooth to be lost

The largest tooth in the space

The most posterior tooth missing

The presence of wisdom tooth

Correct! Wrong!

22.Tripoding is the method used:

For giving clasp assemblies at 3 points

For recording the relation of the cast to the surveyor

To determine the areas on the tooth where the gingivally approaching clasp, occlusal rest of the reciprocal arm are going to be placed

To have reproducible position of the cast on the surveyor

To identify guide planes

Correct! Wrong!

23. What is the most suitable material for making impression of a partial dentate patient would be:

Irreversible hydrocolloids

Reversible hydrocolloid

Elastomers

Plaster of Paris

Impression waxes

Correct! Wrong!

24. What are the functions of an indirect retainer:

to prevent horizontal dislodgement of the distal extension base of a removable partial denture

to connect the parts of the prosthesis located on one side of the arch with those on the opposite side

to prevent vertical dislodgement of the distal extension base of a removable partial denture

to link the major connector and other parts of the prosthesis together

it has no function

Correct! Wrong!

25.A wrought wire clasp when used as a retainer:

is less flexible than a cast clasp

is not as tough as a cast clasp

has a tensile strength that is at least 25% greater than that of the cast alloy from which it was made

is not as adjustable as a cast clasp

is never used as a retainer

Correct! Wrong!

26.In the mesial rest, guide plane and i-bar design, reciprocation is achieved by:

flexible plating

minor connectors

major connectors

guide planes not extended around the vertical line of abutments

retentive clasp arms

Correct! Wrong!

27.All of the following are advantages of the gingivally approaching clasps as compared to occlusally approaching clasp, except :

Less distortion of coronal contours

Less tooth contact

Cleaner

Less bothersome to vestibular tissues

Esthetically superior in most cases

Correct! Wrong!

28. The reciprocal arm of the clasp assembly should:

Always be on the lingual side

Always be active, i.e. apply force to the tooth

Be active when half of the denture has been Inserted

Always be passive

Reciprocation is not necessary

Correct! Wrong!

29. All of the following are considered to be basic rules for occlusal rest design when fabricating a removable partial denture except:

The rest should minimise the tilting action of the appliance

The rest must be placed so that it will prevent movement of the appliance in a cervical direction

The rest should transmit stress down the long axis of the abutment

The rest must have sharp angles to permit maximum retention

Occlusal rest is not essential

Correct! Wrong!

30. For the preparation of rest seat:

The outline to have greater width than length

The outline to have greater length than width

No preparation is required

Correct! Wrong!

31. A device that relieves the abutment teeth, to which a fixed or removable partial denture is attached, of all or part of the forces generated by occlusal function is called a:

Pontic

Stress breaker

Major connector

Minor connector

Retainer

Correct! Wrong!

32. When designing palatal major connectors, relief should be given for:

Palatal torus

Ridge area

Elevated mid suture line

Rugae area

Gingival areas

Correct! Wrong!

33. Labial bar is indicated when:

There is a diastema

There is Labial inclination of teeth

There is Lingual inclination of teeth

There are Periodontally weak teeth

The lips are incompetent

Correct! Wrong!

34. The superior border of lingual bar should lie:

Deep in the lingual sulcus

At least 4 mm below the gingival margin

At the cingulum of anterior teeth

At least 7 mm below the gingival margin

In the floor of the mouth

Correct! Wrong!

35. One of the steps of preparation of the master cast before casting is beading. What is the purpose of beading of the maxillary cast:

To transfer the major connector design with a visible outline

To give strength to the casting

To provide intimate tissue contact

To provide for undercuts

To strengthen the cast

Correct! Wrong!

36. A black gutta percha is a thermo plastic impression material which is used for recording impressions for;

Complete dentures

Partial dentures

Intra-oral defects

Over dentures

Immediate dentures

Correct! Wrong!

37. Which is an appropriate procedure for disinfection of alginate impression?

Complete immersion in bleach in a plastic bag for 1 hour

Spraying for 30 seconds with an idophor and then wiping dry

Placing in an autoclave on low temperature for 3 minutes

Spraying with gluteraldehyde and sealing in a bag for 10 minutes

Place under running water

Correct! Wrong!

38. Which of the following elastomeric impression materials has the longest working and setting time?

Polyether

Polysulfide

Condensation silicones

Addition silicone

soft acrylics

Correct! Wrong!

39. A patient with class iii mobility of upper and lower teeth is suggested immediate complete dentures. When both maxillary and mandibular immediate complete dentures are proposed then what is the recommended protocol:

They should be constructed together

Make the maxillary first followed by the mandibular

Construct the mandibular first

Immediate dentures should not be made routinely as they get loose later

Wait for complete healing of the tissues

Correct! Wrong!

40.While selecting overdenture abutment preference is given to:

Posterior abutments

Anterior abutments

There is no reason for any preferences

Overdenture is not a good alternative treatment

Submerged roots

Correct! Wrong!

41.A patient is seen with all maxillary teeth removed and lower arch intact. However, the lower molars are supra erupted, so that the occlusion plane is not level, what should be done in such a case?

The occlusal plane of the natural teeth must be made level

The artificial teeth must be set to contact only the highest parts of natural teeth

The teeth should be prepared so that cross arch balancing contacts are possible

Onlays to alter the shape and height of the occlusal surfaces of the teeth

All the above

Correct! Wrong!

42.For implant placement, ideal amount of bone under soft tissue is:

8 mm vertical and 4 mm horizontal

10 mm vertical and 6 mm horizontal

At least 12 mm vertical and 6 mm horizontal

At least 14 mm vertical and 8 mm horizontal

Depends from patient to patient

Correct! Wrong!

43.This distance between the implant and the superior aspect of the inferior alveolar canal should be:

1 mm

3 mm

2 mm

4 mm

6 mm

Correct! Wrong!

44.A complete denture wearer, reports to the dentist with symptoms of joint involvement, obscure pain and discomfort and clicking sounds. The dentures should be checked for:

Increased vertical dimension

Reduced vertical dimension

Improper centric relation

Overextended denture base

Looseness of the dentures

Correct! Wrong!

45. A patient is observed with complete loss of teeth in the maxillary arch and loss of the molars on both sides on the lower arch. What is the treatment option for such a clinical scenario?

Only the maxillary denture should be made

It is absolutely essential to make the lower denture along with the upper

It makes no difference whether the lower denture is made or not

In such a situation the lower teeth should also be extracted

Review the patient

Correct! Wrong!

Prosthodontics Quick Quiz

1.There are many landmarks in the oral cavity which helps in designing complete dentures. One of the important landmarks is fovea palatini. What is its relation to the vibrating line:

2.A patient presents for provision of complete dentures. Examination reveals an unfavorable ridge slope. What is the most likely reason:

3.The lower denture bearing area has different compressibility. Which in your opinion is the most compressible tissue in the lower arch;

4.Surgical removal of a maxillary torus is indicated when?

5.How will the alveolar ridge respond to a mandibular complete denture base that terminates short of retromolar pad:

6.The primary denture support area for a mandibular complete denture is:

7.There are many impression techniques which are used in recording impressions of the edentulous areas. Which impression technique will be used in a patient with a sharp mandibular ridge?

8.The position of the upper occlusal rim in the articulator is adjusted by:

9.A loss in vertical dimension in complete denture will cause the mandible to move:

10.While recording the rest position of the mandible, the patient’s:

11.The correct bucco-lingual placement of the teeth plays animportant role in phonation. What should be the relationship of teeth and tongue in pronouncing “t” and “d” sounds:

12.Balanced occlusion in complete denture is essential:

13.A patient is referred to the prosthodontist with complaint of a newly made denture which is loose and causes soreness even after repeated adjustments. What is the most important protocol to follow in such a case?

14.A complete denture wearer, reports complaining of discomfort with his dentures. On examination it is observed that the posterior teeth are set edge to edge, without horizontal overjet, the possible discomfort may be:

15.After the provision of complete denture the first review appointment for evaluating the new dentures should be carried out after:

16.The oral muscular forces have a definitive effect, on the position of the mandible.What position will the mandible be braced during typical empty mouth swallowing?

17.An overextended disto buccal corner of a mandibular denture will push against which muscle during function:

18.Mandibular movement pattern of complete denture patients and those with natural teeth are:

19.Patients with complete dentures are advised to chew food on both sides of the mouth, but with food of tougher consistency,the patient preference for chewing changes and use:

20.On a review appointment it is observed that there is deposition of calculus on one side of the denture. this indicates that:

21.Kennedy classification is determined by:

22.Tripoding is the method used:

23. What is the most suitable material for making impression of a partial dentate patient would be:

24. What are the functions of an indirect retainer:

25.A wrought wire clasp when used as a retainer:

26.In the mesial rest, guide plane and i-bar design, reciprocation is achieved by:

27.All of the following are advantages of the gingivally approaching clasps as compared to occlusally approaching clasp, except :

28. The reciprocal arm of the clasp assembly should:

29. All of the following are considered to be basic rules for occlusal rest design when fabricating a removable partial denture except:

30. For the preparation of rest seat:

31. A device that relieves the abutment teeth, to which a fixed or removable partial denture is attached, of all or part of the forces generated by occlusal function is called a:

32. When designing palatal major connectors, relief should be given for:

33. Labial bar is indicated when:

34. The superior border of lingual bar should lie:

35. One of the steps of preparation of the master cast before casting is beading. What is the purpose of beading of the maxillary cast:

36. A black gutta percha is a thermo plastic impression material which is used for recording impressions for;

37. Which is an appropriate procedure for disinfection of alginate impression?

38. Which of the following elastomeric impression materials has the longest working and setting time?

39. A patient with class iii mobility of upper and lower teeth is suggested immediate complete dentures. When both maxillary and mandibular immediate complete dentures are proposed then what is the recommended protocol:

40.While selecting overdenture abutment preference is given to:

41.A patient is seen with all maxillary teeth removed and lower arch intact. However, the lower molars are supra erupted, so that the occlusion plane is not level, what should be done in such a case?

42.For implant placement, ideal amount of bone under soft tissue is:

43.This distance between the implant and the superior aspect of the inferior alveolar canal should be:

44.A complete denture wearer, reports to the dentist with symptoms of joint involvement, obscure pain and discomfort and clicking sounds. The dentures should be checked for:

45. A patient is observed with complete loss of teeth in the maxillary arch and loss of the molars on both sides on the lower arch. What is the treatment option for such a clinical scenario?

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