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Oxford Handbook > Restorative Dentistry > Flashcards

Restorative Dentistry Flashcards

1
Q

What are the indications for the replacement of missing teeth?

A 
To Masticatory efficiency
Improve speech
Preserve or improve health of oral cavity
Prevent unwanted tooth movement vertical rotational tipping drifting
Improve distribution of occlusal loads
Space maintenance
Restore aesthetics
Prepare pt for complete denture
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2
Q

How are resin bonded bridges classified?

A

Position; anterior or posterior

Retention.: macromechanical; micromechanical or chemical

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3
Q

What are the different types of retention?

A

Macro mechanical
Micro mechanical
Chemical

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4
Q

What are the advantages of resin bonded bridges?

A

Less expensive than conventional bridge or cobalt chromium partial denture or implant in the shorter arm

Minimal or no tooth prep required

No LA required as prep is in enamel

Potential for rebond if debond occurs

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5
Q

What are the disadvantages of resin bonded bridges?

A

Tendency to debond
Especially if planning/preparation/placement technique poor
Creation of a natural emergence profile can be challenging especially in very resorbed ridges. Use of an ovate pontic can be helpful

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6
Q

What are the indications for using resin bonded bridges?

A

Short span
Single tooth edentulous space

Sound abutment teeth or only minimal restoration

Sufficient heat to ensure sufficient surface area for acid etch bonding

Favourable occlusion

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7
Q

What design is used for reían bonded bridges?

A

Cantilever

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8
Q

Why is a cantilever design used for resin bonded bridges?

A

If a fixed fixed design is used and there is a debond of one retainer, caries can develop quickly and undetected under this retainer

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9
Q

When may a fixed fixed resin bonded bridge be indicated?

A

If periodontal splinting is required or retention required following orthodontics

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10
Q

What are the guidelines for preparing a RBB?

A

Single path of insertion
Provide near parallel guiding planes
Eliminating undercuts which allows coverage of maximal surface area for bonding

Provide space in occlusion to accommodate bridge

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11
Q

What is the prevalence of CLP?

A

1:700

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12
Q

What is the prevalence of CP?

A

1:2000

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13
Q

What is the percentage presence of family history in CLP cases?

A

40

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14
Q

What is the percentage presence of family history in CP cases?

A

20

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15
Q

How is CLP classified?

A

Primary or secondary palate

Complete or incomplete

Bilateral or unilateral

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16
Q

How does submucous cleft of the palate present?

A

Overlying mucosa is intact

Poor speech

Diagnosis often missed as only noticed when speech begins

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17
Q

What is the management of unilateral complete CLP?

At birth

A

Prenatally/birth: reassurance, explanation, feeding obturator

18
Q

What is the management of unilateral complete CLP?

At 3- 6 months of age

A

Lip closure

Delaire or millard & or modifications Eg vomer flap are the most popular

Bilateral lip can be closed in 1 or 2 ops

19
Q

What is the management of unilateral complete CLP?

9 - 12 months

A

Palatal closure

20
Q

When is lip closure completed?

A

3 - 6 months

21
Q

When is palatal closure completed?

A

9 - 12 months

22
Q

How is lip closure completed?

A

Delaire or millard

Vomer flap

23
Q

How is palatal closure completed?

A

Delaire or Von Lamgenbeck

24
Q

Why may repair (of cleft palate) be deferred until pt is older?

A

Decreased growth disturbance

Speech development is adversely affected

25
Q

What are the clinical signs of chronic periodontitis?

A 
Gingival inflammation
Bleeding
Pocketing
Gingival recession
Tooth mobility
Tooth migration
Discomfort
Halitosis
26
Q

What are the clinical signs of gingivitis?

A

Classic triad of redness, swelling, bleeding on gentle probing are diagnostic

Usually associated with c/o bleeding on brushing

27
Q

How is the clinical appearance of gingiva in health described

A

Knife edge margin

Stippled appearance

28
Q

How is the clinical appearance of gingivitis described

A

Rounded shiny appearance

29
Q

Is gingivitis associated with bone loss?

A

No

30
Q

Can probing depth > 3mm occur in gingivitis? Explain how these probing depths occur

A

Yes probing depth > 3mm occur in gingivitis if its chronic

Increase in gingival size

31
Q

What are two reasons for increase in gingival size in gingivitis? (false pockets)

A

Oedema

Hyperplasia

32
Q

How is the severity of clinical attachement loss classified ?

A

Mild 1-2 mm CAL
Moderate 3-4mm CAL
severe > 5mm CAL

33
Q

What % of sites which bleed will go on to lose attachement?

A

30%

34
Q

What is the aim of obturation ?

A

Provide a 3D hermetic seal to the root canal

35
Q

What is meant by hermetic seal in endodontics?

A

A restoration that

Prevents reinfection of root canal

Prevent the ingress of bacteria or tissue fluid which might act as a culture medium for any bacteria that remain in the RCT

Incarcerate any microbes left in RCT

36
Q

What is meant by ‘favourable’ outcome?

A

Symptom free
Functional tooth
Clinically healthy tissues
Radiographic evidence of healthy Periapicsl tissues or healing by scar tissue formation

37
Q

What is Reiter’s syndrome?

A

Reactive arthritis

38
Q

What is the causative agent of Reiter’s syndrome?

A

Unknown

39
Q

What are the symptoms of reactive arthritis?

A

Urethritis
Arthritis
Conjunctivitis
Oral ulcers or erosiona

40
Q

Who is mainly affected by reactive arthritis?

A

Young males

41
Q

What is the serology of Reiter’s syndrome?

A

Leucocytosis

Increased ESR

HLA B27 in 80% of patients

Oxford Handbook (1 decks)

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