ISRCTN ISRCTN14868392
DOI https://doi.org/10.1186/ISRCTN14868392
ClinicalTrials.gov (NCT) Nil known
Clinical Trials Information System (CTIS) Nil known
Protocol serial number Nil known
Sponsor Academic Center for Dentistry Amsterdam
Funder Investigator initiated and funded
Submission date
27/02/2023
Registration date
18/03/2023
Last edited
06/03/2023
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Oral Health
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data
Record updated in last year

Plain English summary of protocol

Background and study aims
Medical professionals should advise their patients to visit a dentist if necessary. Due to the lack of time and knowledge, screening for periodontitis (gum disease) is often not done. To alleviate this problem, a screening model for total and severe periodontitis in a medical care setting was developed at the Academic Center of Dentistry Amsterdam (ACTA). These models were externally validated in a medical care setting. The aim of this study is to find out whether it is possible to update the models for periodontitis screening in a medical care setting for better performance.

Who can participate?
Patients between 18 and 80 years of age who have at least one of their own teeth

What does the study involve?
Participants complete an oral health questionnaire, demographic data are collected, and a periodontal examination is performed.

What are the possible benefits and risks of participating?
The benefit of participation is to get a free periodontal screening. There are no risks involved.

Where is the study run from?
Amsterdam University Medical Centers (location Academic Medical Center) (Netherlands)

When is the study starting and how long is it expected to run for?
October 2021 to May 2023

Who is funding the study?
Investigator initiated and funded

Who is the main contact?
Nina Nijland, ninanijland@hotmail.com

Contact information

Miss Nina Nijland
Principal investigator

Gustav Mahlerlaan 3004
Amsterdam
1081 LA
Netherlands

ORCiD logoORCID ID 0000-0002-0723-5537
Phone +31 (0)681104655
Email ninanijland@hotmail.com

Study information

Primary study designObservational
Study designSingle-centre cross-sectional study
Secondary study designCross sectional study
Study type Participant information sheet
Scientific titleUpdate of a rapid, non-invasive tool for periodontitis screening in a medical care setting: a cross-sectional study
Study acronymUPSIMS
Study objectivesIt is possible to update the models (previously made by Verhulst et al. [2019]) for periodontitis screening in a medical care setting for better performance.
Ethics approval(s)Approved 08/11/2021, Ethical Committee of the Academic Center for Dentistry Amsterdam (Gustav Mahlerlaan 3004, 1081 LA Amsterdam, Netherlands; +31 (0)20 59 8080888; etc@acta.nl), ref: 2021-59159
Health condition(s) or problem(s) studiedPeriodontitis
InterventionPatients 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 et al [2019]) will be updated based on the update cohort. First, the self-reported oral health (SROH) questionnaire was conducted. Second, demographic and systemic health data (age, sex, education level, smoking, BMI and diabetes status) were collected. Finally, the periodontal examination took place. Participants from the prior study (Nijland, Overtoom et al. 2021) served as the validation cohort.
Intervention typeOther
Primary outcome measure(s)

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

Key secondary outcome measure(s)

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

Completion date01/05/2023

Eligibility

Participant type(s)Patient
Age groupAdult
Lower age limit18 Years
Upper age limit80 Years
SexAll
Target sample size at registration180
Key inclusion criteria1. 18 and 80 years of age
2. Have at least one of their own teeth
Key exclusion criteria1. <18 and >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
Date of first enrolment01/11/2021
Date of final enrolment08/07/2022

Locations

Countries of recruitment

  • Netherlands

Study participating centre

Amsterdam UMC, location AMC
Meibergdreef 9
Amsterdam
1105 AZ
Netherlands

Results and Publications

Individual participant data (IPD) Intention to shareYes
IPD sharing plan summaryAvailable on request
IPD sharing planThe datasets generated during and/or analysed during the current study are/will be available upon request from Nina Nijland (ninanijland@hotmail.com). Data is available after the study publication. The data consists of: medical data of the participants (diabetes state, BMI), oral status in Community Periodontal Index of Treatment Needs (CPITN) score, and answers to the SROH questions. Participants were asked to participate, if so, they got an information letter and signed informed consent. A key document connected the research numbers to the AMC patient numbers. This document was stored together with the completed questionnaires in separate folders in a closed closet at the Department of Periodontology at ACTA.

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Participant information sheet Participant information sheet 11/11/2025 11/11/2025 No Yes

Editorial Notes

06/03/2023: Trial's existence confirmed by the Ethical Committee of the Academic Center for Dentistry Amsterdam.