Color stability of resin cement used to lute dental ceramic laminates
Conditions
Interventions
Clinical exam and impression of the maxillary dental arch of 10 participants were conducted and replicas were made with type IV plaster. 2 laminate veneers (0.3 mm thick) were made for the buccal surf
Other
E06.323.428
D25.264.377
Sponsors
Universidade Federal de Santa Maria - UFSM
Universidade Federal de Santa Maria - UFSM
Eligibility
Age
20 Years to 45 Years
Inclusion criteria
Inclusion criteria: Volunteers of both genres; age between 20 and 45 years; with good general and oral health; absence of orthodontic appliance; absence of posterior crossbite; absence of noncarious cervical lesions; upper second premolars vital and without restorations; upper second premolars with colour homogeneity in relation to adjacente teeth; areas of buccal surface that circumscribe a circle with minimum diameter of 6 mm
Exclusion criteria
Exclusion criteria: Individuals with gingival recession on buccal surface of upper second premolars; dental sensibility to air blast; enamel or dentin defects; tetracycline staining; unilateral or bilateral crossbite; mandibular prognathism; maxillary retrognathism; smokers
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Instrumental color alteration after 6 months, 12 months and 24 months verified by means of evaluation method with a clinical spectrophotometer based on the observation of color units difference (delta E);After 6 months, 12 months and 24 months follow-up, there was not statistical difference between the groups for color alteration (P>.05) | — |
Secondary
| Measure | Time frame |
|---|---|
| Marginal staining after 6 months, 12 months and 24 months according to modified US Public Health Service based on observation of clinical criteria change;After 6 months follow-up, there was no marginal staining for both groups. After 12 months, there was marginal staining in 2 restorations (one in each group) and after 24 months there was marginal staining in 7 restorations (3 in the photoactivation group and 4 in the dual activation group) | — |
Countries
Brazil
Contacts
Public ContactAna Maria Marchionatti
Universidade Federal de Santa Maria - UFSM
Outcome results
None listed