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CompletedNCT03279874Updated Feb 15, 2024

Qualitative Interview Study Regarding Dentists' Repair Behaviour

An observational study in Behavior, sponsored by University of Göttingen. Completed at 1 site in Germany. Per ClinicalTrials.gov, last updated 2024-02-15.

Sponsored by University of Göttingen · Observational

Study type
Observational
Model
Case-only
Time perspective
Prospective
Enrollment
10
Sex
All
01

Study summary

The aim of the present study is to determine dentists' barriers and facilitators for performing repairs on partially defective dental restorations.

Read the detailed description

Potential barriers and facilitators for treating partially defective dental restorations by repair instead of complete replacement are going to be assessed by interviewing German dentists.

02

Conditions studied

  • Behavior

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Keywords

  • decision-making
  • repair behavior
  • interviews
03

In context

Behavior

1,573 studies on the registry are indexed under Behavior; 313 are open to participants now.

This study's enrollment of 10 is below the median of 235 across 341 observational studies indexed under Behavior.

Browse Behavior studies →

Lead sponsor

University of Göttingen is the lead sponsor of 37 studies on the registry; 3 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
Child (0–17), Adult (18–64), Older adult (65+)
Sexes eligible
All
Accepts healthy volunteers
Yes
Sampling method
Non-probability sample

Study population

Dentists who are working in dental offices in Germany

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Dentists who are working in dental offices in Germany and who are able to give written consent

Exclusion criteria

Exclusion Criteria:

  • Non-fulfillment of the inclusion criteria
  • Lack of capacity to consent
  • No German language skills in written and spoken language
05

Study design

Observational model
Case-only
Time perspective
Prospective
Enrollment
10 participants (actual)
Patient registry
No

Groups and cohorts

  • German dentists

    Dentists who are working in dental offices in Germany

    Other: Interviews

Interventions

  • OtherInterviews

    Semi-structured one-on-one interviews

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What researchers measure

Primary outcomes

  1. Completion of a questionnaire

    Time frame: 5 minutes

  2. Interview

    Time frame: 60 minutes

07

Study locations

1 site
  • University Medical Center Göttingen, Dept. of Preventive Dentistry, Periodontology and Cariology
    Göttingen, Lower Saxony 37075, Germany
08

References and documents

Publications

  • Kanzow P, Hoffmann R, Tschammler C, Kruppa J, Rodig T, Wiegand A. Attitudes, practice, and experience of German dentists regarding repair restorations. Clin Oral Investig. 2017 May;21(4):1087-1093. doi: 10.1007/s00784-016-1859-3. Epub 2016 Jun 2. PubMed 27255959 ↗
  • Kanzow P, Dieckmann P, Hausdorfer T, Attin T, Wiegand A, Wegehaupt FJ. Repair restorations: Questionnaire survey among dentists in the Canton of Zurich, Switzerland. Swiss Dent J. 2017 Apr 10;127(4):300-311. doi: 10.61872/sdj-2017-04-267. English, German. PubMed 28480953 ↗
  • Kanzow P, Wiegand A, Schwendicke F. Cost-effectiveness of repairing versus replacing composite or amalgam restorations. J Dent. 2016 Nov;54:41-47. doi: 10.1016/j.jdent.2016.08.008. Epub 2016 Aug 26. PubMed 27575986 ↗
  • Kanzow P, Kanzow AF, Wiegand A, Schwendicke F. Implementation of repairs in dental practice: Randomized behavior simulation trial. J Am Dent Assoc. 2023 Jul;154(7):610-619.e11. doi: 10.1016/j.adaj.2023.04.007. Epub 2023 May 22. PubMed 37212760 ↗

Individual participant data

Plan to share: No

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Jul 2018 to primary completion in Apr 2021, 32 months.

Of 113 non-industry observational studies under Behavior, half reached primary completion within 16 months of starting (the median), counting those still running; a quarter within 6 and three quarters within 57. This study's 32 months is above that.

Counting every sponsor, half of 119 studies reached it within 17 months; a quarter within 6 and three quarters within 53.

How these figures are worked out, and which studies are left out of them.

Registered
Sep 8, 2017
First posted
Sep 12, 2017
StartActual
Jul 27, 2018
Primary completionActual
Apr 21, 2021
CompletionActual
Apr 21, 2021
Last update
Feb 15, 2024
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Feb 15, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03279874
Lead sponsor
University of Göttingen
Collaborators
Charite University, Berlin, Germany
Responsible party
Philipp Kanzow, PD Dr. med. dent., Dr. rer. medic. (Senior Dental Practitioner, University Medical Center Goettingen) — Principal investigator
First posted
Sep 12, 2017
Start date
Jul 27, 2018
Primary completion
Apr 21, 2021
Completion
Apr 21, 2021
Last update
Feb 15, 2024

Study contacts

Philipp Kanzow, PD Dr. Dr. med. dent., M.Sc.
principal investigator · Dept. of Prev. Dentistry, Periodontology and Cariology, University Medical Center Göttingen, Germany

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Feb 2024. You cannot join it, but the record below documents what was studied.

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