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Clinical study on the influence of different retraction measures on the digital impression of single teeth

Clinical study on the influence of different retraction measures on the digital impression of single teeth

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
DRKS
Registry ID
DRKS00031019
Enrollment
50
Registered
2023-02-06
Start date
2023-02-21
Completion date
Unknown
Last updated
2025-04-07

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

To determine to what extent the retraction technique in the digital workflow influences the marginal accuracy of the impression.

Interventions

Group 1: Retraction cord: after a single tooth has been prepared, a digital impression is first taken with the aid of an intraoral scanner. The working area is then drained and the existing sulcus flu

Sponsors

Justus-Liebig-Universität Gießen ZZMK Poliklinik für Zahnärztliche Prothetik
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Inclusion criteria

Inclusion criteria: - Patients with asymptomatic teeth who require at least two prosthetic restorations - minimum age 18 years - maximum probing depth < 3.5mm without bleeding - interproximal plaque index < 30% - papilla bleeding index < 2

Exclusion criteria

Exclusion criteria: - severe systemic diseases - allergies to materials used - unwilling or unable to give their consent to participate in the study

Design outcomes

Primary

MeasureTime frame
Difference of sulucus fluid before and after retraction

Secondary

MeasureTime frame
Determination of mechanical retraction by superimposing of intraoral scan datasets before and after retraction

Countries

Germany

Contacts

Public ContactMaximiliane Amelie Schlenz

Justus-Liebig-Universität Gießen ZZMK Poliklinik für Zahnärztliche Prothetik

maximiliane.a.schlenz@dentist.med.uni-giessen.de+49 641-9946150

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Feb 4, 2026