Fitting precision of fixed dental restorations Surgery Dental procedure
Conditions
Interventions
The study gains information on the dependency between mixing timing of a one-stage putty-and-wash dental impression and three-dimensional precision of the resulting gypsum models under clinical condit
Sponsors
3M ESPE AG (Germany)
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: Suitable probands were aged between 18 and 80 years, either sex, and showed a complete set of either healthy or restored teeth in the lower right quadrant up to the second molar.
Exclusion criteria
Exclusion criteria: 1. Alcohol or drug dependence 2. Persons with restricted legal capacity 3. Pregnant women 4. Probands who would face a conflict of interest due to the participation in another study 5. Patients with periodontal disease (periodontal screening index greater than 2) 6. Probands with missing teeth in the according quadrant (except for third molars and orthodontically closed spaces) 7. Probands excluded from the dental education course because of an infectious disease such as hepatitis or acquired immune deficiency syndrome (AIDS)
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The precision of the three-dimensional (3D) tooth surface reproduction and the reproduction of the subgingival tooth surface, measured within 24 hours after impression taking. | — |
Secondary
| Measure | Time frame |
|---|---|
| 1. Influence of environment temperature, measured in the impression session 2. Timing, measured in the impression session 3. Tray size, measured in the impression session 4. Accordance with subjective clinical impression rating, measured within four weeks after the impression session has taken place, throughout the study | — |
Countries
Germany
Outcome results
None listed