The efficacy of comprehensive oral hygiene education vs. traditional instructions for maintenance of peri-implant health - A randomized clinical trial

The efficacy of comprehensive oral hygiene education vs. traditional instructions for maintenance of peri-implant health - A randomized clinical trial - Oral hygiene education

Status

Recruiting

Phases

Unknown

Study type

Interventional

Source

DRKS

Registry ID

DRKS00036424

Enrollment

Registered

2025-03-18

Start date

2025-10-14

Completion date

Unknown

Last updated

2025-11-24

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Periimplantitis Prevention

Interventions

Group 1: (Test Group) Patients will receive the same verbal instructions as the control group but with supplementary leaflets containing visual aids and detailed written guidance. These materials enha

Eligibility

Sex/Gender

All

Age

18 Years to No maximum

Inclusion criteria

Inclusion criteria: Patients with at least one implant (in function for a minimum of 1 year).

Exclusion criteria

Exclusion criteria: • Patients with poor oral hygiene (Full mouth plaque score = 20%). • Patients currently presenting with peri-implant diseases. • Intake of systemic or local antibiotics within the past 6 months. • Patients who have received oral hygiene instructions during the last 6 months. • Smokers (no cigarettes allowed). • Patients with immunocompromised conditions. • Pregnant or lactating individuals. • Patients experiencing psychological or mental illnesses affecting daily oral hygiene maintenance. • Patients currently undergoing periodontal treatment. • Sites with implant-supported overdentures or full-arch fixed prostheses. • Sites with implant-supported rehabilitations showing poor marginal adaptation (clinically detected with a probe) or inadequate contact points. • Zirconia implants.

Design outcomes

Primary

Measure	Time frame
The presence (yes/no) of bleeding on probing (BoP) at 6 months.	—

Secondary

Measure	Time frame
• Incidence of peri-implant mucositis or peri-implantitis. • Modified plaque index (mPI). • Probing depth (PD). • Plaque index (PI). • Modified sulcus bleeding index (mSBI). • Suppuration (SUP). • Percentage of sites displaying BoP and SUP. • Knowledge on oral hygiene practices and peri-implant diseases. • Awareness of peri-implant diseases. • Brushing discomfort evaluated with an 10-point numeric-rating scale. • Oral health-related quality of life (OHIP-14). • Probe Feasibility (yes/no). • Biomarkers in peri-implant crevicular fluid • Peri-implant mucosa colour.	—

Measure

Time frame

• Incidence of peri-implant mucositis or peri-implantitis. • Modified plaque index (mPI). • Probing depth (PD). • Plaque index (PI). • Modified sulcus bleeding index (mSBI). • Suppuration (SUP). • Percentage of sites displaying BoP and SUP. • Knowledge on oral hygiene practices and peri-implant diseases. • Awareness of peri-implant diseases. • Brushing discomfort evaluated with an 10-point numeric-rating scale. • Oral health-related quality of life (OHIP-14). • Probe Feasibility (yes/no). • Biomarkers in peri-implant crevicular fluid • Peri-implant mucosa colour.

—

Countries

Switzerland

Contacts

Public ContactFranz Strauss

Zentrum für Zahnmedizin, Klinik für Rekonstruktive Zahnmedizin

franz.strauss@zzm.uzh.ch+41446340404

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Feb 4, 2026