Patient PreferenceNCT03118323
Patients' Willingness-to-pay of Endodontic Treatment
An observational study of Patient Preference, run by University of Göttingen at 2 sites in Germany.
Trial summary
The aim of the present study is to determine the monetary value of endodontic treatment (primary root canal treatment) compared to the alternative treatment options, such as extraction with or without subsequent insertion of a dental implant or placement of a fixed dental prosthesis. Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Patient Preference
- What is being tested?
- Questionnaire
- How many people
- 200 participants
- Where
- 2 sitesGermany
- Study dates
- 8 Jul 2017to Jul 2021
- 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 18 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Study population: * Department of Preventive Dentistry, Periodontology and Cariology, University Medical Center Göttingen, Germany * Department of Operative and Preventive Dentistry, Charité - Universitätsmedizin Berlin, Germany
Who may be able to join
- Patients who are in need of an primary root canal treatment and who are able to give written consent
Who cannot join
- Non-fulfillment of the inclusion criteria
- Lack of capacity to consent
- No German language skills in written and spoken language
- Age <18 years
Trial locations and contacts
2 sites in 1 country.
Germany2 sites
Charité - Universitätsmedizin Berlin, Dept. of Operative and Preventive Dentistry
Berlin, 14197
University Medical Center Göttingen, Dept. of Preventive Dentistry, Periodontology and Cariology
Göttingen, Lower Saxony, 37075
About this study
The aim of the present study is to determine the monetary value of endodontic treatment (primary root canal treatment) compared to the alternative treatment options, such as extraction with or without subsequent insertion of a dental implant or placement of a fixed dental prosthesis.
Read the detailed description
Endodontic treatment of teeth with irreversibly damaged pulp aim at the long-term preservation of the affected tooth. If contraindications are present and / or a patient refuse endodontic treatment, the extraction of the affected tooth is often necessary. The resulting tooth gap might be closed by inserting a dental implant or by placing a fixed dental prosthesis.
Prior studies have shown that patients' decisions in alternative treatment options depend on a variety of factors. Studies on the willingness-to-pay (WTP) are used to compare the monetary value of different therapy procedures.
- Conditions
- Patient Preference
- Being tested
- Questionnaire
- Keywords
- willingness topay, WTP, health economic, preference-based measures
- Medical subject headings
- Patient Preference
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
QuestionnaireOther
Patients are given a questionnaire with items related to personality and their willingness-to-pay for different treatment options.
| Study group | Role | What they receive |
|---|---|---|
| Patients in need of endodontic treatment | n = 200 Receives: Other: Questionnaire |
What is being measured
The primary outcome is the main question the study is designed to answer.
Completion of a questionnaire
Measured: 10 minutes
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted18 Apr 2017
- Study start8 Jul 2017
- Primary completionJul 2021 (estimated)
- Study completionJul 2021 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (4)Papers the sponsor has linked to this study.
- Other trials for Patient PreferenceStudies 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
- Case only
- Time perspective
- Prospective
- Enrolment
- 200 participants (estimated)
Sponsor and investigators
- Lead sponsor
- University of Göttingen
- Sponsor type
- University, hospital or other
- Collaborators
- Charite University, Berlin, Germany
- Responsible party
- Principal investigator, Philipp Kanzow, Dr. med. dent., Dr. rer. medic., University Medical Center Goettingen
- Investigators
- Annette Wiegand, Prof. Dr. med. dent., Principal investigator, Dept. of Prev. Dentistry, Periodontology and Cariology, University Medical Center Göttingen, Germany
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT03118323
- Sponsor's protocol ID
- WTP-Endodontic
- Status last verified
- Nov 2020
- First submitted
- 12 Apr 2017
- Last updated
- 5 Nov 2020
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Publications
Ernst J, Brahler E, Weissflog G. [Patient involvement in medical decision making--an overview on patient preferences and impacting factors]. Gesundheitswesen. 2014 Apr;76(4):187-92. doi: 10.1055/s-0033-1361150. Epub 2014 Jan 9. German.
PubMed 24408309Gelberg L, Andersen RM, Leake BD. The Behavioral Model for Vulnerable Populations: application to medical care use and outcomes for homeless people. Health Serv Res. 2000 Feb;34(6):1273-302.
PubMed 10654830Herrera A, Martin J, Perez F, Bonafe E, Reis A, Dourado AL, Fernandez E. Is personality relevant in the choice of bleaching? Clin Oral Investig. 2016 Nov;20(8):2105-2111. doi: 10.1007/s00784-015-1701-3. Epub 2016 Jan 11.
PubMed 26750134Vernazza CR, Steele JG, Whitworth JM, Wildman JR, Donaldson C. Factors affecting direction and strength of patient preferences for treatment of molar teeth with nonvital pulps. Int Endod J. 2015 Dec;48(12):1137-46. doi: 10.1111/iej.12413. Epub 2014 Dec 10.
PubMed 25400281
Study at a glance
From the registry record, last updated by the sponsor on 5 Nov 2020. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Patients' Willingness-to-pay of Endodontic Treatment
- ClinicalTrials.gov ID
- NCT03118323
- Acronym / sponsor ID
- WTP-Endodontic
- Conditions
- Patient Preference
- Keywords
- willingness topay, WTP, health economic, preference-based measures
- Study type
- Observational
- Recruitment status
- Unknown status
- Enrolment
- 200 participants (estimated)
- Lead sponsor
- University of GöttingenUniversity, hospital or other
- Collaborators
- Charite University, Berlin, Germany
- Study start
- 8 Jul 2017 (actual)
- Primary completion
- Jul 2021 (estimated)
- Study completion
- Jul 2021 (estimated)
- First posted
- 18 Apr 2017 (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.
The aim of the present study is to determine the monetary value of endodontic treatment (primary root canal treatment) compared to the alternative treatment options, such as extraction with or without subsequent insertion of a dental implant or placement of a fixed dental prosthesis.
Detailed description
Endodontic treatment of teeth with irreversibly damaged pulp aim at the long-term preservation of the affected tooth. If contraindications are present and / or a patient refuse endodontic treatment, the extraction of the affected tooth is often necessary. The resulting tooth gap might be closed by inserting a dental implant or by placing a fixed dental prosthesis.
Prior studies have shown that patients' decisions in alternative treatment options depend on a variety of factors. Studies on the willingness-to-pay (WTP) are used to compare the monetary value of different therapy procedures.
Study design
- Observational model
- Case only
- Time perspective
- Prospective
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Patients in need of endodontic treatment | – | Other: Questionnairen = 200 |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
- Study population
- * Department of Preventive Dentistry, Periodontology and Cariology, University Medical Center Göttingen, Germany * Department of Operative and Preventive Dentistry, Charité - Universitätsmedizin Berlin, Germany
Key inclusion criteria (1 listed)
- Patients who are in need of an primary root canal treatment and who are able to give written consent
Key exclusion criteria (4 listed)
- Non-fulfillment of the inclusion criteria
- Lack of capacity to consent
- No German language skills in written and spoken language
- Age <18 years
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 |
|---|---|---|
| QuestionnairePatients are given a questionnaire with items related to personality and their willingness-to-pay for different treatment options. | Other | Patients in need of endodontic treatment |
Primary outcome
Completion of a questionnaire
Time frame: 10 minutes
Results and safety
Results are not available in the source record.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 5 Nov 2020.
- Background: PubMed 24408309Ernst J, Brahler E, Weissflog G. [Patient involvement in medical decision making--an overview on patient preferences and impacting factors]. Gesundheitswesen. 2014 Apr;76(4):187-92. doi: 10.1055/s-0033-1361150. Epub 2014 Jan 9. German.
- Background: PubMed 10654830Gelberg L, Andersen RM, Leake BD. The Behavioral Model for Vulnerable Populations: application to medical care use and outcomes for homeless people. Health Serv Res. 2000 Feb;34(6):1273-302.
- Background: PubMed 26750134Herrera A, Martin J, Perez F, Bonafe E, Reis A, Dourado AL, Fernandez E. Is personality relevant in the choice of bleaching? Clin Oral Investig. 2016 Nov;20(8):2105-2111. doi: 10.1007/s00784-015-1701-3. Epub 2016 Jan 11.
- Background: PubMed 25400281Vernazza CR, Steele JG, Whitworth JM, Wildman JR, Donaldson C. Factors affecting direction and strength of patient preferences for treatment of molar teeth with nonvital pulps. Int Endod J. 2015 Dec;48(12):1137-46. doi: 10.1111/iej.12413. Epub 2014 Dec 10.
- Individual participant dataSharing planned: No
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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.
Annette Wiegand, Prof. Dr. med. dent. principal investigator
Dept. of Prev. Dentistry, Periodontology and Cariology, University Medical Center Göttingen, Germany
2 sites in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Patient Preference, run by University of Göttingen at 2 sites 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 1 inclusion and 4 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: status not confirmed, as of the sponsor's last update on 5 Nov 2020. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 2 sites 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?
Results are not available in the source record.
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?
Completion of a questionnaire (time frame: 10 minutes). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT03118323, which also lists 4 linked publications.
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 5 Nov 2020.