Dental CariesNCT07881380
Oral Health Knowledge and Caries Experience in Adults
An observational study of Dental Caries, run by University of Las Palmas de Gran Canaria at 1 site in Spain.
Trial summary
This cross-sectional study assessed the level of oral health knowledge and its relationship with caries experience, independently of age and sex, in adult patients attending a university dental clinic in Gran Canaria (Spain). Read more about this study
- Who is it for?
- Ages 19 years and olderHealthy volunteers can take part
- Conditions the study is for
- Dental Caries
- Type of treatment
- Pill or oral medicine
- How many people
- 80 participants
- Where
- 1 siteSpain
- Study dates
- 2 Oct 2023to 3 Dec 2024
- How long will I take part?
- 1 Day
- Phase
- Observational
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 19 years and older
- All sexes
- Healthy volunteers accepted
- Adult, Older adult
Study population: Adult patients attending the Dental Clinic of Universidad Fernando Pessoa Canarias (Santa María de Guía, Gran Canaria, Spain).
Who may be able to join
- Age 19 years or older
- Able to understand and respond to the questionnaire
- Agreed to participate and signed written informed consent
Who cannot join
- Cognitive impairment
- Decompensated systemic disease contraindicating the clinical examination
- Incomplete records
Trial locations and contacts
1 site in 1 country.
Spain1 site
Clínica Dental de la Universidad Fernando Pessoa Canarias
Guia, Canary Island, 35450
About this study
Official title: Oral Health Knowledge and Caries Experience in Adults Attending a University Dental Clinic: A Cross-Sectional Study
This cross-sectional study assessed the level of oral health knowledge and its relationship with caries experience, independently of age and sex, in adult patients attending a university dental clinic in Gran Canaria (Spain). Adults aged 19 years or older completed a validated 20-item oral health knowledge questionnaire and underwent a standardized clinical dental examination, complemented by a same-day panoramic radiograph obtained as part of routine care, to record the Decayed, Missing, and Filled Teeth (DMFT) index according to World Health Organization criteria. The association between knowledge and the DMFT index was analyzed using negative binomial regression adjusted for age and sex.
- Conditions
- Dental Caries
- Keywords
- oral health, Health Knowledge, Attitudes, Practice, Dental Caries, DMF Index, Cross-Sectional Studies
- Medical subject headings
- Dental Caries, Behavior
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
| Study group | Role | What they receive |
|---|---|---|
| Adult dental patients | Adults aged 19 years or older attending the Dental Clinic of Universidad Fernando Pessoa Canarias (Gran Canaria, Spain) between October 2023 and December 2024, who completed the oral health knowledge questionnaire and a clinical dental examination. |
What is being measured
The primary outcome is the main question the study is designed to answer.
Oral health knowledge score
Oral health knowledge assessed with a validated 20-item self-administered questionnaire (Torres Loaiza) covering dietary habits, oral diseases and oral hygiene. Each correct answer scores 1 point (total score 0-20; higher scores indicate better knowledge). Knowledge was classified as poor (0-6), fair (7-13) or good (14-20).
Measured: Baseline (single assessment at the study visit)
Caries experience (DMFT index)
Caries experience assessed with the Decayed, Missing and Filled Teeth (DMFT) index according to WHO criteria, through a clinical examination by a single trained examiner supported by a panoramic radiograph. DMFT is the sum of decayed, missing due to caries and filled permanent teeth (range 0-28; third molars excluded; higher values indicate greater caries experience).
Measured: Baseline (single assessment at the study visit)
Secondary outcomes (2)
Number of decayed teeth
Number of permanent teeth with untreated caries (D component of the DMFT index), recorded according to WHO criteria during the clinical examination with radiographic support (range 0-28).
Measured: Baseline (single assessment at the study visit)
Number of missing teeth
Number of permanent teeth missing due to caries (M component of the DMFT index), recorded according to WHO criteria during the clinical examination with radiographic support (range 0-28).
Measured: Baseline (single assessment at the study visit)
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted19 Oct 2026
- Study start2 Oct 2023
- Primary completion3 Dec 2024
- Study completion3 Dec 2024
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Dental CariesStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Other
- Time perspective
- Cross-sectional
- Enrolment
- 80 participants (actual)
- Target duration
- 1 Day
Sponsor and investigators
- Lead sponsor
- University of Las Palmas de Gran Canaria
- Sponsor type
- University, hospital or other
- Collaborators
- Universidad Fernando Pessoa Canarias
- Responsible party
- Principal investigator, Kirenia Maria Rabilero Salgado, University of Las Palmas de Gran Canaria
- Investigators
- Kirenia M Rabilero, MsC, Principal investigator, Universidad de las Palmas de Gran Canaria
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07881380
- Sponsor's protocol ID
- PI 006-2023
- Status last verified
- Oct 2026
- First submitted
- 12 Oct 2026
- Last updated
- 21 Oct 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No: Individual participant data are not publicly available because they contain clinical information and public deposition of the data was not included in the informed consent. De-identified data are available from the principal investigator upon reasonable request for research purposes.
Study at a glance
From the registry record, last updated by the sponsor on 21 Oct 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Oral Health Knowledge and Caries Experience in Adults Attending a University Dental Clinic: A Cross-Sectional Study
- ClinicalTrials.gov ID
- NCT07881380
- Acronym / sponsor ID
- PI 006-2023
- Conditions
- Dental Caries
- Keywords
- oral health, Health Knowledge, Attitudes, Practice, Dental Caries, DMF Index, Cross-Sectional Studies
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 80 participants (actual)
- Lead sponsor
- University of Las Palmas de Gran CanariaUniversity, hospital or other
- Collaborators
- Universidad Fernando Pessoa Canarias
- Study start
- 2 Oct 2023 (actual)
- Primary completion
- 3 Dec 2024 (actual)
- Study completion
- 3 Dec 2024 (actual)
- First posted
- 19 Oct 2026 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This cross-sectional study assessed the level of oral health knowledge and its relationship with caries experience, independently of age and sex, in adult patients attending a university dental clinic in Gran Canaria (Spain). Adults aged 19 years or older completed a validated 20-item oral health knowledge questionnaire and underwent a standardized clinical dental examination, complemented by a same-day panoramic radiograph obtained as part of routine care, to record the Decayed, Missing, and Filled Teeth (DMFT) index according to World Health Organization criteria. The association between knowledge and the DMFT index was analyzed using negative binomial regression adjusted for age and sex.
Study design
- Observational model
- Other
- Time perspective
- Cross-sectional
- Target follow-up
- 1 Day
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Adult dental patients | – | –Adults aged 19 years or older attending the Dental Clinic of Universidad Fernando Pessoa Canarias (Gran Canaria, Spain) between October 2023 and December 2024, who completed the oral health knowledge questionnaire and a clinical dental examination. |
Who may qualify
- Ages
- 19 years and older
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
- Study population
- Adult patients attending the Dental Clinic of Universidad Fernando Pessoa Canarias (Santa María de Guía, Gran Canaria, Spain).
Key inclusion criteria (3 listed)
- Age 19 years or older
- Able to understand and respond to the questionnaire
- Agreed to participate and signed written informed consent
Key exclusion criteria (3 listed)
- Cognitive impairment
- Decompensated systemic disease contraindicating the clinical examination
- Incomplete records
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
Oral health knowledge score
Time frame: Baseline (single assessment at the study visit)
Oral health knowledge assessed with a validated 20-item self-administered questionnaire (Torres Loaiza) covering dietary habits, oral diseases and oral hygiene. Each correct answer scores 1 point (total score 0-20; higher scores indicate better knowledge). Knowledge was classified as poor (0-6), fair (7-13) or good (14-20).
Caries experience (DMFT index)
Time frame: Baseline (single assessment at the study visit)
Caries experience assessed with the Decayed, Missing and Filled Teeth (DMFT) index according to WHO criteria, through a clinical examination by a single trained examiner supported by a panoramic radiograph. DMFT is the sum of decayed, missing due to caries and filled permanent teeth (range 0-28; third molars excluded; higher values indicate greater caries experience).
2 secondary outcomes
Number of decayed teeth
Time frame: Baseline (single assessment at the study visit)
Number of missing teeth
Time frame: Baseline (single assessment at the study visit)
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 21 Oct 2026.
- Individual participant dataSharing planned: No. Individual participant data are not publicly available because they contain clinical information and public deposition of the data was not included in the informed consent. De-identified data are available from the principal investigator upon reasonable request for research purposes.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Kirenia M Rabilero, MsC principal investigator
Universidad de las Palmas de Gran Canaria
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Dental Caries, run by University of Las Palmas de Gran Canaria at 1 site in Spain.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 3 inclusion and 3 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 21 Oct 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Spain. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Oral health knowledge score (time frame: Baseline (single assessment at the study visit)). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 21 Oct 2026.