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Accuracy of digital- and conventional dental impressions - A clinical trial

Accuracy of digital- and conventional dental impressions - A clinical trial - Impression accuracy

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
DRKS
Registry ID
DRKS00005958
Enrollment
30
Registered
2014-03-21
Start date
2013-12-06
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

Prosthesis

Interventions

Group 1: two step impression polyvinylsiloxan Group 2: intraoral digital impression - Heraeus Cara trios Group 3: intraoral digital impression - 3M Lava true definition Group 4: intraoral digital im

Sponsors

Zahn-, Mund- und Kieferheilkunde, Justus-Liebig-Universität Gießen
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Inclusion criteria

Inclusion criteria: Patients with the medical indication for a fixed prosthesis. The finish line of the tooth has to be visible and it should be possible to keep it dry. Patient has to agree with the study and sign it.

Exclusion criteria

Exclusion criteria: The finish line is not visible and it is not possible to keep it dry. The Patient does not agree with the study.

Design outcomes

Primary

MeasureTime frame
Evaluation of the achievable marginal accuracy of zirconiumoxide fixed prosthethis, which are produced by different impressions techniques (conventional two stage impression, three intraoral digital impressions, indirect laboratory scan). Measurement of the marginal accuracy with the replica technique and with Marxkors probes.

Secondary

MeasureTime frame
Influence of the measuring point (vestibular, oral, mesial, distal) on the marginal accuracy. Influence of the jaw on the marginal accuracy.

Countries

Germany

Contacts

Public ContactMoritz Boeddinghaus

Med. Zentrum für Zahn-, Mund- und Kieferheilkunde Poliklinik für zahnärztliche Prothetik, Justus-Liebig Universität Giessen

moritzboeddinghaus@gmail.com0641/99-46148

Outcome results

None listed

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