Pan Dental Surgery

Pan Dental Communication and Dental Materials Second Remedial

This exam is designed to examine your knowledge in communication and dental materials.

1 / 60

What is dental composite used for?

As bone graft

As an abutment

For obturation

For fillings

2 / 60

What is the difference between PFM and full-ceramic crowns?

Full-ceramic crowns have a lot of cyanoacrylate.

Full-ceramic crowns contain a metal layer inside them.

PFM has no porcelain in it

PFM has a metal layer inside it

3 / 60

What is sodium hypochlorite used for in root canals?

As an anti-sensitivity treatment

Disinfecting the root canal

For fillings

As a replacement for Cention N

4 / 60

What material do we pour into impressions to make casts?

Gypsum

Lidocaine

EDTA

Bone graft

5 / 60

What is GP cone in full?

Gutta-Percha cone

Good Post cone

Gentisate permanganate cone

Grey Powell cone

6 / 60

Why do we use fluoride toothpaste?

To irrigate root canals

To make teeth weaker

As a filling material

To make teeth stronger

7 / 60

What is an artificial tooth screwed into the patient’s jaw called?

Bone graft

Implant

Oxysafe

MTA

8 / 60

Why do dentists inject lidocaine into patients?

To increase the pain the patient feels

To clean their teeth

To make the patient numb so that they do not feel pain

To kill germs

9 / 60

What is special about flowable composite?

It is hard, like ice

It smells nice

It is only red in colour

It flows, so it is sometimes easier for the dentist to use

10 / 60

What is the danger of using amalgam?

It can crack the tooth in the long term

It looks nicer than composite

It is going to kill the patient

All the patient’s teeth will fall out

11 / 60

Which of the following frequently causes allergies?

Zirconia.

GP cones.

Titanium.

Nickel.

12 / 60

Alginate is more accurate than silicone impressions. True or False?

True

False

13 / 60

A fibre post is prefabricated (made in standard sizes in a factory), not custom-cast (made in the laboratory specially for the patient). True or False?

False

True

14 / 60

Oxysafe and hydrogen peroxide target oxygen-hating bacteria. True or False?

False

True

15 / 60

What is GI, the dental restorative material, in full?

Glass Ionomer

Gentamicin Iodine

Gallium Iodide

Green Irrigant

16 / 60

What do we use GP cones for?

Making dentures

Obturation

Making the patient numb

Irrigating the canals

17 / 60

What do we use Chlorhexidine for?

As a tissue adhesive

To kill germs in the patient’s mouth, as a mouthwash

To make temporary crowns

As a hemostat

18 / 60

What is special about resorbable sutures?

They look nice.

They can dissolve on their own, and so the dentist may not have to remove them.

They are very strong.

They smell nice.

19 / 60

What do mouthguards do?

Stops teeth grinding at night

Treat jaw joint problems

Protect athletes’ teeth and tongue when playing sports.

Kill germs.

20 / 60

Dental composite contains resin, silane, filler and ________ ?

Photoinitiator

Carbamide peroxide

Glycerin

Silicon carbide

21 / 60

What does an Opaquer do?

Stops bleeding when used with retraction cord

Make dental composite more transparent

Make calcium hydroxide a stronger cement

Block out the colour of a metal post

22 / 60

Why do we use glycerin?

To make composite very rough

To soften composites

To make the surface of composites harder

To make composite stain faster

23 / 60

What does self-cure mean?

Light is required to start the polymerisation reaction.

Light activates the photoinitiator to produce free radicals.

Light energizes the resin, which joins the silane to the fluorapatite.

A catalyst starts the polymerisation reaction when the two components are mixed without needing light.

24 / 60

Which of the following is a disadvantage of using gold to make crowns?

The crowns will chemically corrode easily.

The crowns will cause a lot of allergies.

The patient may like the gold colour for fashion.

The gold crowns are expensive.

25 / 60

When chemically bonding lithium disilicate restorations to teeth, you need to prepare hydrofluoric acid, silane-linking agent, __________, universal adhesive and orthophosphoric acid. What is missing?

GI cement

Resin or polymer-based cement

Zinc polycarboxylate

Cention N

26 / 60

Fluoride gels are applied by the dentist to make teeth stronger on a chemical level. How does this happen?

By turning hydroxyapatite into fluorapatite

By enamel microabrasion

By killing germs with hydrofluoric acid

By blocking dentinal tubules and calming tooth nerves

27 / 60

Calcium hydroxide can be used as an interappointment medicament when doing root canals. This means it is a temporary root canal filling. Why is it not permanent?

Because it causes a higher rate of allergies than nickel.

Because it dissolves easily, and is not strong enough to last.

Because it is too strong, and cannot be removed when the dentist wants to place GP cones later.

Because it does not stimulate the body to heal.

28 / 60

Why are latex gloves not advised to be used when taking silicon impressions?

They never cause allergies.

They may affect the polymerisation reaction of the silicon.

They may cause the impression to be too accurate, which can cause errors.

Latex gloves are always sterile, and therefore, are too expensive to use for just impressions.

29 / 60

Dental sensitivity can arise in many ways. Which of the following is NOT a cause of sensitivity?

Lack of movement of dentinal fluid

Deep Cavities

Extreme cold

Exposed dentinal tubules, due to gum disease

30 / 60

Opaldam is a light-cured resin barrier that can be used for bleaching. Why?

For isolation.

For enamel microabrasion.

For whiter results.

For bulk fill.

31 / 60

Prophylaxis paste shares many similar components with toothpaste. What makes the two different?

Toothpaste never contains fluoride.

Prophylaxis paste never contains fluoride.

Prophylaxis paste contains a lot of EDTA.

Prophylaxis paste contains abrasive particles that scratch away stains.

32 / 60

Why are hydrofluoric acid and silane-linking agent not used when luting zirconia to the teeth?

Zirconia is made up of lithium disilicate, and so these chemicals are not needed.

Zirconia is commonly bonded chemically, not conventionally

The statement is wrong. Hydrofluoric acid and silane-linking agent are needed.

Zirconia is commonly bonded conventionally, not chemically

33 / 60

Which of the following is FALSE about amalgam?

It is formed by mixing mercury liquid and silver-tin powder in an amalgamation reaction.

It can crack the tooth long-term.

It has been linked with systemic health diseases due to its mercury content.

When polishing or removing amalgam, HVE suction should be used.

34 / 60

Which of the following is true about prosthetic materials?

Impression waxes are the type of waxes commonly used in the clinic.

Silicon is the best choice of material for denture adhesives. 

Denture bases cannot be made out of acrylic.

Tissue conditioners cannot be made out of acrylic.

35 / 60

Which of the following is FALSE about PFM restorations?

The first firing is called the bisque bake, and the final firing is the glaze bake.

They have an inner metal coping, which the lab technician manually layers with porcelain.

The metal oxide layer of the metal coping is the final layer of porcelain that the technician applies.

They are heated in a vacuum in a process called sintering.

36 / 60

Which of the following is true about resin-modified GI cements?

They cannot be used with zirconia crowns.

They cannot be used as a core build-up material.

They can be dual-cure.

They have worse bond strengths compared to normal GI cements.

37 / 60

EDTA is a root canal irrigant. What is FALSE about it?

EDTA is used as a hemostat.

Using EDTA opens the dentinal tubules, for sodium hypochlorite to enter and clean them.

EDTA binds calcium.

EDTA dissolves the smear layer on the walls of the root canal.

38 / 60

Which of the following types of bone grafts always require greater infection control and clinical procedures in a hospital with a big operating theatre?

Autologous graft and allograft

Xenograft and synthetic graft

Xenograft

Synthetic graft

39 / 60

Which of the following is true about Cention N?

It contains normal quartz fillers like other composites.

You mix 3 spoons of powder with 1 drop of liquid.

It absorbs fluoride, but cannot release it.

It can be self-cure or dual cure.

40 / 60

"Composites harden by polymerisation" BECAUSE "the silane linking agent is activated by the light cure".

(The format of the question is: "Statement 1" BECAUSE "Statement 2")

Statement 1 is false, and statement 2 is true.

Both Statement 1 and Statement 2 are true, and Statement 2 explains Statement 1.

Statement 1 is true, and statement 2 is false.

Both Statement 1 and Statement 2 are true, but Statement 2 does not explain Statement 1.

Statement 1 is false, and statement 2 is false.

41 / 60

Most customers who have a bad experience do not come back. True or False?

True

False

42 / 60

What kind of communication should we use with patients?

Passive communication.

Assertive communication.

Aggressive communication

Passive-aggressive communication.

43 / 60

Should we smile when greeting patients?

No.

Yes.

44 / 60

Which doctor will patients respond well to?

One with poor posture

One with bad hygiene

One who gives good eye contact

One who looks ugly

45 / 60

We should be honest with patients when we make a mistake. True or False?

True

False

46 / 60

What does empathy mean?

Giving patients expensive treatments

Recognising and validating patient feelings

Telling lies to patients

Telling patients sweet words.

47 / 60

What does a good rapport mean?

An open, honest, and friendly relationship between a patient and a doctor.

Poor communication skills

Good knowledge of dental materials

Good treatment equipment

48 / 60

What is active listening?

Giving feedback while looking away.

Listening while doing active exercise like running.

Listening only with your ears.

Paying attention to the speaker with your ears, eyes and body language, and giving feedback.

49 / 60

What is informed consent?

A doctor refusing to treat the patient.

Informing a patient of both the good and bad outcomes of treatment.

A patient being well informed about the good side of treatment.

A patient consents to treatment with or without knowing its positives and negatives.

50 / 60

Which patients are more likely to become violent in a dental clinic?

Patients who are female.

Patients who are in pain.

Patients who avoid illegal drugs.

Patients who have good mental health.

51 / 60

What does the biopsychosocial model of medicine explain about communication?

Diseases can start from or be affected by the mind. Anxiety from poor communication can worsen health.

The biopsychosocial model says nothing about health. It is only the biomedical model that does.

Diseases are only in the mind. Communication is the main cause of disease.

Diseases are in the body, not the mind. Poor communication cannot affect patient health.

52 / 60

How can we improve the content (verbal message) of our communication?

Speaking in a friendly tone with good pace

Giving a patient good eye contact

Using touch properly with patients

Using kinder professional words

53 / 60

A patient arrives late for their appointment. They step in after closing time, demanding to be seen. This is how you respond. What type of communication is this?

"Let me call the doctor, but you really should not have come late. She once told me she cannot come back to the office because she has other commitments. Let me talk to her, but I can't promise anything. She prefers to deal with patients who respect her time."

Aggressive communication.

Assertive communication.

Passive communication.

Passive-aggressive communication.

54 / 60

A patient walks into the office and asks if their bill is ready. Your colleague, Sandra, was working on it. You saw Sandra holding a piece of paper, but you did not check whether it was the patient's bill or something else. This is how you respond:

"Yes, your bill is ready. Sandra has it."

What communication barrier is this?

Fact-inference confusion.

Different definitions of the same word.

Wrongly using both the biomedical and biopsychosocial models of healthcare.

Generalisation.

55 / 60

Which of the following represents the thin-slice phenomenon?

A patient avoiding your dental clinic because of a prophetic dream.

A patient avoiding your dental clinic because of five bad experiences in the past.

A patient avoiding your dental clinic because too many staff are thin.

A patient not trusting a doctor because they do not like their posture within the first few seconds of meeting them.

56 / 60

Which of the following is true about smiling?

Smiling allows you to influence a patient's thin-slice phenomenon.

A non-Duchenne smile also involves the muscles around the eye.

Smiling causes good feelings in only the person who is smiling, not anyone who sees it.

Duchenne smiles are always seen as insincere.

57 / 60

Which of the following demonstrates that trust has an affective component?

A patient not trusting a doctor because they look like someone else that they already hate.

A patient trusting a doctor who has treated them well in the past.

A patient not trusting a doctor because they made 3 mistakes in the past.

A patient trusting a doctor because they are very experienced.

58 / 60

How should we communicate with patients by phone?

We should answer the phone after 10 rings.

We should take special note of our paralanguage.

We should not be concise.

We should use medical jargon.

59 / 60

What is the quickest way to relieve patient anxiety in a dental clinic?

Hypnosis.

Sedation.

Deep breathing.

Meditation.

60 / 60

Which of the following communication techniques is NOT commonly used with normal children?

Active listening with boundaries.

Transient Interactive Communication Approach.

Praising actions rather than character.

Self-disclosing assertiveness.

Your score is

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