4) Limitations and Current Uses of Removable Appliances Flashcards Preview

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Flashcards in 4) Limitations and Current Uses of Removable Appliances Deck (15):
1

What does a removable appliance do to teeth?

Tip them

2

What are the potential problems if you just tip teeth?

Aesthetic

Dental Health

Occlusal Fit

3

Describe removables in the lower arch?

Less undercut for retention

Less buccal sulcus for springs

Tongue severely limits lingual space for springs

4

What are the limitations resulting from a Tipping action?

Mesio-distal in the buccal segments

Labio-lingual in Class II

Labio-lingual in Class III

Mesio-distal in labial segments

5

What are the limitations of removables?

Tipping

Lower arch

Vertical movements

Inter-arch elastics

Precision

Rotations

Multiple tooth movements

6

What are the current uses of removable appliances?

Space maintenance

Retainers

Tooth over bite

Bite opening

Expansion

Other simple tooth movements

(Functional appliances)

7

What are the advantages of removable retainers?

ALL the teeth can be retained

Partial withdrawal is possible

Less dental health hazard

Oral hygiene

Missing teeth can be replaced

Responsibility of the patient

8

What are the disadvantages of removable retainers?

Rotations

Anterior diastemas

Vertical tooth position

Need to be worn

9

If you have a fixed upper retainer, what else should you have?

A removable one too

10

What are the favourable features of a removable appliance for treating a tooth over the bite?

One or two teeth only

Upright upper incisor

A mandibular displacement

11

What are the advantages of the acrylic base plate?

Can provide anterior and posterior bite planes

Can accommodate a screw

Give some anchorage from the palate

12

What are screws used for?

Unilateral or bilateral distal movement

Arch expansion

Anterior crossbite correction

13

What is being shown here?

Q image thumb

Anchorage from the vault of the palate

14

What are functional appliances?

e.g. twin blocks Used to correct Class II malocclusion

15

How can you tell if a patient is wearing an appliance?

Good speech

Palatal gingivitis

Wear facets on acrylic

Springs passive

Confident removal and insertion