4.12.23_ZhaoZhao Implant maintenance

Question 1

What is the prevalence of peri-implant mucositis and peri-implantitis?

Answer 1

Derks & Tomasi ‘15 = patient-level prevalences
Peri-implant mucositis: 43%
Peri-implantitis: 22%

Shimchuk ‘20:
compared new vs. old classifications and how it affected peri-implantitis prevalences
Old:
* mucositis: (implant level: 35.5% / Patient level 48%)
* peri-implantitis (implant level: 26% / 16%)

New:
* mucositis: (implant level: 33% / Patient level 52.2%)
* peri-implantitis (implant level: 3.4% / 6.5%)

Question 2

What factors are strongly associated with peri-implantitis?

Answer 2

Schwarz ‘18
Poor plaque control
Lack of regular maintenance
Hx of periodontitis

Question 3

How often per year is maintenance required to prevent peri-implantitis?

Answer 3

Monje ‘17 JOP
≥ 2 times / year
This results in 86% less incidence of peri-implantitis

Cross-sectional, 115 pts with 206 implants
1) Regular compliers (RC) (≥2 PIMT/year);
2) Erratic compliers (EC) (< 2 PIMT/year);
3) Non-compliers (NC) (no PIMT).

Mombelli ‘19
Suggests starting maintenance at 3 mo intervals, then increasing by 1 month increments (up to 6 months).

Question 4

How compliant are patients with SPT / implant maintenance?

Answer 4

Amerio
Systematic review
Fully-compliant: 3.3 - 86.8%
Median: 32%

Non-compliers: 1.69-64.4%
Median: 29%

Question 5

What studies reveal floss remnants on implants?

Answer 5

Montevecchi
Van Velzen