Clinical trial NCT02975635: Patients' Preferences for Repair Versus Replacement Restorations
Official title: Patients' Preferences for Repair Versus Replacement Restorations
Study type: OBSERVATIONAL
Overall status: UNKNOWN
Conditions: Patient Preference
Keywords: Patients' Preferences
Lead sponsor: University of Göttingen
Sponsor class: OTHER
Collaborators: name: Georg-Elias-Mueller-Institute of Psychology, University Goettingen
name: Charite University, Berlin, Germany
First posted: 2016-11-29
Enrollment: 100
Sex: ALL
Minimum age (years): 18
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Observational model: COHORT
Time perspective: PROSPECTIVE
Sampling method: PROBABILITY_SAMPLE
Study population: Department of Preventive Dentistry, Periodontology and Cariology, University Medical Center Göttingen, Germany

Brief summary: Partially defective dental restorations might either be treated by complete replacement or by repair of the affected region. Repair restorations are a scientifically proven approach to manage failed restorations, but probably unknown to most patients. Results from this study and findings on the predictors of patients' therapy decisions might improve future patient information documents.

Detailed description: Handling insufficient restorations contributes up to 2/3 of all treatments in dentistry. Formerly, defective restorations were completely removed and replaced. Today, repair restorations are an alternative choice. During repair treatment, only the defective portion of a restoration (instead of the complete restoration) is removed and replaced. By performing repair restorations dental hard tissue can be conserved and the risk of treatment associated complications is reduced.

Recent studies have shown that survival rates of repair restorations are slightly lower compared to replacement fillings. Nevertheless, in certain clinical situations repair restorations are more cost-effective than replacement.

Further studies have shown that patients' decisions differ with regard to a variety of factors. This applies to decisions regarding dental treatments as well. However, patients' decisions between both possible therapy options (repair or replacement) of partially defective restorations are not yet investigated.

Eligibility criteria: Participant are selected by consecutive patient sampling.

Inclusion Criteria:

* At least one partially defective dental restoration which can either be repaired or replaced

Exclusion Criteria:

* Non-fulfillment of the inclusion criteria
* Lack of capacity to consent
* No German language skills in written and spoken language
* Age \<18 years
* Defective restoration must be completely replaced in any event or is not suitable for repair

Primary outcomes:
measure: Completion of a questionnaire
timeFrame: 15 minutes
Secondary outcomes:
Other outcomes:
Locations:
city: Göttingen
country: Germany
facility: University Medical Center Göttingen, Dept. of Preventive Dentistry, Periodontology and Cariology
state: Lower Saxony
Study officials:
affiliation: Dept. of Prev. Dentistry, Periodontology and Cariology, University Medical Center Göttingen, Germany
name: Annette Wiegand, Prof. Dr. med. dent.
role: PRINCIPAL_INVESTIGATOR
References:
citation: Schwendicke F, Mostajaboldave R, Otto I, Dorfer CE, Burkert S. Patients' preferences for selective versus complete excavation: A mixed-methods study. J Dent. 2016 Mar;46:47-53. doi: 10.1016/j.jdent.2016.01.006. Epub 2016 Jan 18.
citation: Weeks L, Balneaves LG, Paterson C, Verhoef M. Decision-making about complementary and alternative medicine by cancer patients: integrative literature review. Open Med. 2014 Apr 15;8(2):e54-66. eCollection 2014.
citation: 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.
citation: 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.
citation: 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.