Week 3 Space Maintenance

Question 1

When the space is adequate with no tooth loss or missing teeth…

Answer 1

No treatment!

Question 2

Space adequate with tooth loss.. what to do?

Answer 2

Maintain the space if primary posterior teeth are missing.

You do not need to maintain the space if you are missing primary anterior because you won’t lose any space!

Question 3

True or False?

If primary tooth is lost before 1/2 to 2/3 of permanent tooth is formed, it will slow the permanent tooth eruption.

Answer 3

True

Question 4

So when do you use the space maintenance?

Answer 4

When space is adequate or when space is marginally adequate with extraction, otherwise it is inappropriate.

Question 5

Treatment options for space maintenance

Answer 5

1. Band and Loop
2. Distal shoe
3. Lingual arches

Question 6

When do you use Band and loop?

Answer 6

60% successful

Unilateral or bilateral loss of a primary molar.

Permanent molar is easier to bond than occlusally converging primary molar.

Question 7

When do you use Distal shoe?

Answer 7

60-66% success

Only when there is a missing primary 2nd molar prior to the eruption of the permanent 1st molar.

It is used as a guid for erupting 1st molar

It gets placed 1 - 1.5 mm below the marginal ridge of unerupted 1st permanent molar

Question 8

when do you use lingual arch type appliances?

Answer 8

55-59% successful

When multiple primary posterior teeth are missing.

Question 9

Types of Lingual arch type appliances

Answer 9

1. LLHA: Fixed removable, when multiple teeth loss in the mandibular arch. has an adjustment loop.
2. MxLHA
3. TPA (transpalatal arch): can be used when one side of arch is broken. Dont use when teeth are missing on both sides
4. Nance: Has a button on the palate for stability. Used when multiple teeth loss on Maxillary arch.