Update of a questionnaire for periodontitis screening

Update of a rapid, non-invasive tool for periodontitis screening in a medical care setting: a cross-sectional study

Status

Recruiting

Phases

Unknown

Study type

Observational

Source

ISRCTN

Registry ID

ISRCTN14868392

Enrollment

180

Registered

2023-03-18

Start date

2021-11-01

Completion date

Unknown

Last updated

2023-03-27

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

Conditions

Periodontitis Oral Health Periodontal disease, unspecified

Interventions

Patients were required in an outpatient medical setting from the internal medicine policlinic in the Amsterdam UMC (University Medical Center) as the update cohort. The two prediction models (Verhulst

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1. 18 and 80 years of age 2. Have at least one of their own teeth

Exclusion criteria

Exclusion criteria: 1. 80 years of age 2. Complete edentulism with or without full dentures (regardless of dental implant support) 3. Need for antibiotic prophylaxis before probing 4. Not speaking Dutch or English

Design outcomes

Primary

Measure	Time frame
Performance of the models measured with the area under the receiver-operating characteristic curves (AUC) at baseline	—

Secondary

Measure	Time frame
Calibration of the updated models assessed based on calibration plots and the overall observed: expected ratios (O: E ratios) at baseline	—

Countries

Netherlands

Outcome results

None listed

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