15 - Maintenance

Question 1

Study supporting effectiveness of periodontal therapy and maintenance (source)

Answer 1

Becker, Berg, and Becker

Untreated tooth loss 0.36/year
Treated no maintenance 0.22/year
Treated + maintenance 0.11/year

Question 2

Study showing outcomes of a treated and well maintained periodontal group (source)

Answer 2

Hirschfeld and Wasserman
McFall
Goldman

Well maintained 65-83%
Downhill 12.5-28%
Extremely downhill 4-10%

Question 3

Tooth loss numbers associated with well maintained/downhill/extremely downhill

Answer 3

Well maintained - 3 or less
Downhill 4-9
Extremely downhill 10-23

Question 4

Study showing effect of plaque control and maintenance on progression of periodontitis (source)

Answer 4

Nymann, Rosling, Lindhe

All surgeries successful
Good plaque control and maintenance, good gingival health
No maintenance, unsuccessful outcomes

Question 5

Why 3 month maintenance? (source)

Answer 5

Mousques

3 months for subgingival bacteria to recolonize (Spirochetes)

Question 6

How many people comply with maintenance schedules? (source)

Answer 6

Wilson

Fully compliant 16%
Partially compliant 49%
Never reported 34%

Question 7

Call patients and emailing reminders for periodontal maintenance does what?

Answer 7

Fully compliant patients goes from 16 to 32%

Question 8

Is BOP prognostic in predicting future CAL? (source)

Answer 8

BOP at 4/4 maintenance visits broke down 30% of the time

Sites over 16% BOP had increased risk of CAL

Question 9

How long does it take for an implant to be colonized

Answer 9

14-28 days

Question 10

When should implant radiographs be taken?

Answer 10

Placement
Abutment connection
Prosthesis connection
Follow up radiographs at 6 months after restoration insertion and annually after