Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Bds4 Restorative > Paeds Discoloration > Flashcards

Paeds Discoloration Flashcards

1
Q

What is required pre commencing treatment?

A

Accurate diagnosis
Clinical photos
Shade
Sensibility testing, check for sensitivity
Diagram of defect
Radiographs if clinically indicated
Patient assessment (VAS)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What are the treatment options for discolouration?

A

Enamel micro abrasion
Bleaching - vital/ non-vital
Resin infiltration (ICON)
Localised composite restoration
Veneers (composite- direct/ indirect)
Do nothing

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What is microabriasion

A

Removal of the surface layer opaque enamel

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What are some disadvantages of micro abriasopnm?

A

Removes enamel - sensitivity, teeth may be more susceptible to staining, may become more yellow (not predictable)
Must be done in dental surgery
HCl acid compounds are caustic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What are some advantages of micro abrasion?

A

Easily performed
Conservative
Inexpensive
Minimal maintenance and fast acting
Permanent results
Can be used in combination with bleaching

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Clinical technique of micro abrasion

A

Clean teeth with pumice and water
Soft tissue protection - petroleum jelly, rubber dam, sodium bicarbonate guard
Dry teeth
HCl pumic slurry used in slow hand piece and rubber cup for 5 seconds on each tooth (max 10 x 5 secs on each tooth).
Wash after every 5 second application
Fluoride varnish application (helps with remineralisation and sensitivity) - use pro fluoride as is white (duraphat is yellow)
Polish with finest sandpaper disc
Polish with toothpaste

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is the purpose of using sandpaper disc

A

Soft flex disc changes optical properties of enamel - areas of intrinsic discolouration becomes less perceptible by smoothing enamel

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Why might teeth start to appear flattened when using HCl

A

Due to removing layers of enamel

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

How much enamel does acid etch remove?

A

10 microns

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

How much enamel does 10x 5sec HCl pumic micro abrasion remove?

A

100 microns

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

How much enamel does prophy paste with pumice remove?

A

5-50 microns

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Post op instructions for micro abrasion?

A

Teeth are dehydrated - avoid any food/ drinks which will stain teeth for up to a week (at least 24 hours)

Review in 4-6 weeks and take post op photographs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What are the rules surrounding bleaching and under 18s

A

Products containing 0.1- 6% hydrogen peroxide cannot be used on any person under 18 years, except where its use is for the purpose of treating/ preventing disease
Eg. Discolouration due to hypomineralisation, trauma, fluorosis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What are the bleaching options?

A

Vital bleaching (external) - chairside, night guard at home
Non vital - inside outside technique, walking bleach technique

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

How long does at home external bleaching take?

A

3-6 weeks

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What are the side effects of external bleaching?

A

Sensitivity
Gingival irritation

17
Q

Why may adolescents experience less sensitivity than adults?

A

Larger pulp- greater capacity for healing
Better enamel quality

18
Q

At what age is gingival level completely matured?

A

17-18 years

19
Q

What are some advantages of non-vital bleaching

A

Simple, conservative
Gingival tissues not irritated
No lab assistance

20
Q

What are the indications for non vital tooth bleaching

A

Adequate RCT, no clinical or radiological disease
Anterior teeth without large restorations
No amalgam or intrinsic discolouration
Not fluorosis or tetracycline discolouration

21
Q

What is walking bleaching?

A

Oxidising process is allowed to proceed gradually over days

22
Q

What is inside outside method?

A

10% carbamide peroxide gel sealed in (if cooperation is an issue).

23
Q

Where should GP be removed to for internal bleaching?

A

GP should be removed to below CEJ

24
Q

Technique of internal bleaching?

A

Remove GP to below CEJ
Clean with ultrasonic
PLace bleaching agent on cotton pledget and cover with dry cotton pledget
Seal with RMGI

Renew bleach no more than 2 weeks between appts
If no change 3-4 weeks, renewals stop

25
Q

How many bleaching changes can you do for internal bleaching?

A

6-10 changes

26
Q

What is the long term success rate of internal bleaching?

A

Regression 50% at 2-6 years

27
Q

What is combination inside out bleaching?

A

Access cavity is left open for duration of bleaching treatment
Custom made mouth guard, apply bleaching agent into access cavity and tray.
Use 10% carbamide peroxide
Wear mouthquard all the time and replace gel every 2 hours

Restoration- place non setting CaOH for 2 weeks and seal with GIC, then white GP and composite restoration or incrementally cure composite (no option for re bleaching but stronger).

28
Q

What are some complications of internal bleaching?

A

External cervical resorption
Spilling of bleaching agents
Failure to bleach
Over bleach
Brittleness of tooth crown

29
Q

How is external cervical resorption prevented?

A

Place layer of cement over GP - prevents bleaching agent getting to external surface of root (can prevent adequate bleaching of cervical area)

Or

Non setting calcium hydroxide in tooth 2 weeks before final restoration - reverses acidity

30
Q

What are the effects of bleach on soft tissue?

A

Short term - minor ulceration, plaque reduction, aids wound healing
Long term - delayed wound healing, periodontal harm, mutagenic potential

31
Q

What is the use of tooth mouse

A

Milk derived protein
Use 2 weeks at home after bleaching
Can help poorly demarcated hypomineralised lesions (mild/ moderate fluorosis) - after microabrasion, 4 weeks at home before bed.

32
Q

What is resin infiltration?

A

Infiltration of enamel lesions with low viscosity light cured resin.
Surface layer is eroded, lesions are desiccated and a resin infiltrant is applied.

33
Q

What should be considered when placing veneers?

A

Aesthetics
Relative tooth position
Masking dark stains?
Age
Psyche
Plaque removal

34
Q

What is the result in over contouring the tooth?

A

Increases plaque retention and stagnation at the gingival margin

Bds4 Restorative (6 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions