Oral Health CareOncoDentNCT07328347
Improving Dental Care for Patients With Head and Neck Tumors
A study testing Educational material, in people with Oral Health Care and Oral Health Behavior Change, run by University Medical Center Goettingen at 1 site in Germany.
Trial summary
This prospective survey study investigates knowledge, attitudes, experiences, and practices related to dental care in patients with head and neck cancer among affected patients and dentists. Participants complete an anonymous online questionnaire before and after receiving written, guideline-based information. Read more about this study
- Who is it for?
- Ages 18 years and olderHealthy volunteers can take part
- Conditions the study is for
- Oral Health Care, Oral Health Behavior Change, Head & Neck Cancer
- What is being tested?
- Educational material,
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 139 participants
- Where
- 1 siteGermany
- Study dates
- 13 Jan 2026to 1 Nov 2026
- Phase
- Interventional
- 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 18 years and older
- All sexes
- Healthy volunteers accepted
- Adult, Older adult
Who may be able to join
- Patients aged 18 years or older with head and neck cancer whose health status allows completion of a questionnaire
- Practicing dentists in Germany registered in the OAK-Verlag address database
Who cannot join
- Lack of consent to participate
- Insufficient German language skills that prevent completion of the questionnaire
Trial locations and contacts
1 site in 1 country.
About this study
Official title: A Simulation Experiment to Improve Dental Care for Patients With Head and Neck Tumors
This prospective survey study investigates knowledge, attitudes, experiences, and practices related to dental care in patients with head and neck cancer among affected patients and dentists. Participants complete an anonymous online questionnaire before and after receiving written, guideline-based information. The study aims to evaluate whether targeted educational materials improve knowledge and perceptions regarding dental care in the context of head and neck cancer treatment.
Read the detailed description
This study is a prospective survey-based study using a pre-post design. Patients with head and neck cancer and practicing dentists are invited to participate. Patient recruitment is carried out through existing self-help networks and direct personal contact. National and regional self-help groups for head and neck cancer patients are contacted and asked to disseminate information about the study, including a study information sheet and a QR code linking to the online questionnaire, via their communication channels. Dentists receive an invitation letter containing the QR code to the online questionnaire by postal mail.
Participation in the study is voluntary and anonymous. By completing the online questionnaire, participants provide informed consent to participate. Due to the anonymous nature of data collection, withdrawal from the study is no longer possible after submission of the questionnaire. The survey is conducted in accordance with the data protection requirements of the Data Protection Officer of University Medical Center Göttingen, and participants are informed accordingly.
All participants initially complete a baseline questionnaire (pre-assessment) collecting demographic data as well as information on knowledge, behavior, attitudes, and experiences related to dental care for patients with head and neck cancer. Subsequently, a written educational intervention is provided. For patients, this consists of concise summaries of patient guidelines on oral cavity cancer, pharyngeal cancer, and supportive care. For dentists, the intervention includes concise summaries of relevant S3 clinical practice guidelines covering diagnosis, treatment, prevention, and follow-up of laryngeal cancer, oro- and hypopharyngeal cancer, oral cavity cancer, implant-based oral rehabilitation after head and neck radiotherapy, and supportive care in oncology.
The survey for each participant group (patients and dentists) is conducted as a single, continuous, and structured session. After accessing the educational intervention, participants are no longer able to modify their responses to the pre-assessment questionnaire. A second questionnaire with identical content is then completed (post-assessment). The effect of the educational intervention is evaluated by calculating the change (Δ) between pre- and post-assessment values.
The development of the educational interventions was informed by findings from a preceding qualitative interview study involving dentists, otolaryngologists, radiation oncologists, and patients with head and neck cancer.
- Conditions
- Oral Health Care, Oral Health Behavior Change, Head & Neck Cancer, Dentist's Role, Dentist-Patient Relations
- Being tested
- Educational material,
- Medical subject headings
- Head and Neck Neoplasms
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Educational material,Other
Patients with head and neck cancer and practicing dentists in Germany participate in an anonymous, prospective pre-post survey study. Both groups complete a baseline questionnaire assessing demographic characteristics as well as knowledge, attitudes, experiences, and decision-making related to dental care in the context of head and neck cancer treatment. Following the baseline assessment, participants receive group-specific, guideline-based written educational information. After reviewing the educational material, participants complete a post-intervention questionnaire with identical content. The effect of the educational intervention is evaluated by comparing pre- and post-assessment responses within each group.
| Study group | Role | What they receive |
|---|---|---|
| Patients With Head and Neck Cancer/Dentists - Educational Information Intervention | Other | Patients with head and neck cancer and practicing dentists in Germany participate in an anonymous, prospective pre-post survey study. Receives: Other: Educational material, |
What is being measured
The primary outcome is the main question the study is designed to answer.
Change From Baseline in Knowledge and Decision-Making Regarding Dental Care, Assessed by a Self-Administered Questionnaire (Percentage of Correct Responses)
Study outcomes are defined as the effects of the interventions measured using a self-administered questionnaire. Questionnaire responses are summarized as a percentage score ranging from 0% to 100%, with 100% indicating all responses answered correctly. For each research question, outcomes are calculated as the change (Δ) in percentage scores between pre-intervention (baseline) and post-intervention assessments.
Measured: Immediately after completion of the educational intervention (single study visit)
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted9 Jan 2026
- Study start13 Jan 2026
- Primary completion1 Nov 2026
- Study completion1 Nov 2026
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Oral Health CareStudies 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
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Prevention
- Allocation
- Not applicable
- Intervention model
- Single group
- Model description
- This is a prospective, survey-based pre-post study conducted in two participant groups: patients with head and neck cancer and practicing dentists. Both groups complete an anonymous online questionnaire assessing knowledge, attitudes, experiences, and practices related to dental care in the context of head and neck cancer. After the baseline assessment, group-specific, guideline-based written educational information is provided. Participants then complete a post-assessment with identical content. The effect of the educational intervention is evaluated by comparing pre- and post-assessment responses within each participant group.
- Masking
- None (open label)
- Enrolment
- 139 participants (actual)
Sponsor and investigators
- Lead sponsor
- University Medical Center Goettingen
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Felix Marschner, University Medical Center Goettingen
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07328347
- Sponsor's protocol ID
- 15/11/25
- Acronym
- OncoDent
- Status last verified
- Jan 2026
- First submitted
- 19 Dec 2025
- Last updated
- 3 Nov 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
Study at a glance
From the registry record, last updated by the sponsor on 3 Nov 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Simulation Experiment to Improve Dental Care for Patients With Head and Neck Tumors
- ClinicalTrials.gov ID
- NCT07328347
- Acronym / sponsor ID
- OncoDent / 15/11/25
- Conditions
- Oral Health Care, Oral Health Behavior Change, Head & Neck Cancer, Dentist's Role, Dentist-Patient Relations
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 139 participants (actual)
- Lead sponsor
- University Medical Center GoettingenUniversity, hospital or other
- Study start
- 13 Jan 2026 (actual)
- Primary completion
- 1 Nov 2026 (actual)
- Study completion
- 1 Nov 2026 (actual)
- First posted
- 9 Jan 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 prospective survey study investigates knowledge, attitudes, experiences, and practices related to dental care in patients with head and neck cancer among affected patients and dentists. Participants complete an anonymous online questionnaire before and after receiving written, guideline-based information. The study aims to evaluate whether targeted educational materials improve knowledge and perceptions regarding dental care in the context of head and neck cancer treatment.
Detailed description
This study is a prospective survey-based study using a pre-post design. Patients with head and neck cancer and practicing dentists are invited to participate. Patient recruitment is carried out through existing self-help networks and direct personal contact. National and regional self-help groups for head and neck cancer patients are contacted and asked to disseminate information about the study, including a study information sheet and a QR code linking to the online questionnaire, via their communication channels. Dentists receive an invitation letter containing the QR code to the online questionnaire by postal mail.
Participation in the study is voluntary and anonymous. By completing the online questionnaire, participants provide informed consent to participate. Due to the anonymous nature of data collection, withdrawal from the study is no longer possible after submission of the questionnaire. The survey is conducted in accordance with the data protection requirements of the Data Protection Officer of University Medical Center Göttingen, and participants are informed accordingly.
All participants initially complete a baseline questionnaire (pre-assessment) collecting demographic data as well as information on knowledge, behavior, attitudes, and experiences related to dental care for patients with head and neck cancer. Subsequently, a written educational intervention is provided. For patients, this consists of concise summaries of patient guidelines on oral cavity cancer, pharyngeal cancer, and supportive care. For dentists, the intervention includes concise summaries of relevant S3 clinical practice guidelines covering diagnosis, treatment, prevention, and follow-up of laryngeal cancer, oro- and hypopharyngeal cancer, oral cavity cancer, implant-based oral rehabilitation after head and neck radiotherapy, and supportive care in oncology.
The survey for each participant group (patients and dentists) is conducted as a single, continuous, and structured session. After accessing the educational intervention, participants are no longer able to modify their responses to the pre-assessment questionnaire. A second questionnaire with identical content is then completed (post-assessment). The effect of the educational intervention is evaluated by calculating the change (Δ) between pre- and post-assessment values.
The development of the educational interventions was informed by findings from a preceding qualitative interview study involving dentists, otolaryngologists, radiation oncologists, and patients with head and neck cancer.
Study design
- Primary purpose
- Prevention
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 1
- Model description
- This is a prospective, survey-based pre-post study conducted in two participant groups: patients with head and neck cancer and practicing dentists. Both groups complete an anonymous online questionnaire assessing knowledge, attitudes, experiences, and practices related to dental care in the context of head and neck cancer. After the baseline assessment, group-specific, guideline-based written educational information is provided. Participants then complete a post-assessment with identical content. The effect of the educational intervention is evaluated by comparing pre- and post-assessment responses within each participant group.
| Arm | Type | Receives |
|---|---|---|
| Patients With Head and Neck Cancer/Dentists - Educational Information Intervention | Other | Other: Educational material,Patients with head and neck cancer and practicing dentists in Germany participate in an anonymous, prospective pre-post survey study. |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (2 listed)
- Patients aged 18 years or older with head and neck cancer whose health status allows completion of a questionnaire
- Practicing dentists in Germany registered in the OAK-Verlag address database
Key exclusion criteria (2 listed)
- Lack of consent to participate
- Insufficient German language skills that prevent completion of the questionnaire
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Educational material,Patients with head and neck cancer and practicing dentists in Germany participate in an anonymous, prospective pre-post survey study. Both groups complete a baseline questionnaire assessing demographic characteristics as well as knowledge, attitudes, experiences, and decision-making related to dental care in the context of head and neck cancer treatment. Following the baseline assessment, participants receive group-specific, guideline-based written educational information. After reviewing the educational material, participants complete a post-intervention questionnaire with identical content. The effect of the educational intervention is evaluated by comparing pre- and post-assessment responses within each group. | Other | Patients With Head and Neck Cancer/Dentists - Educational Information Intervention |
Primary outcome
Change From Baseline in Knowledge and Decision-Making Regarding Dental Care, Assessed by a Self-Administered Questionnaire (Percentage of Correct Responses)
Time frame: Immediately after completion of the educational intervention (single study visit)
Study outcomes are defined as the effects of the interventions measured using a self-administered questionnaire. Questionnaire responses are summarized as a percentage score ranging from 0% to 100%, with 100% indicating all responses answered correctly. For each research question, outcomes are calculated as the change (Δ) in percentage scores between pre-intervention (baseline) and post-intervention assessments.
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 3 Nov 2026.
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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.
The record lists no contact. Use the official record to reach the sponsor.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Educational material, in people with Oral Health Care and Oral Health Behavior Change, run by University Medical Center Goettingen at 1 site in Germany.
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 2 inclusion and 2 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 3 Nov 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 Germany. 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?
Change From Baseline in Knowledge and Decision-Making Regarding Dental Care, Assessed by a Self-Administered Questionnaire (Percentage of Correct Responses) (time frame: Immediately after completion of the educational intervention (single study visit)). 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 3 Nov 2026.