Colour durability of Resin Cement Activated by Light and Double-Activated

Not Applicable

• Conditions: Color stability of resin cement used to lute dental ceramic laminates; G01.590.540.199; G02.149.883; D25.264; E06.095.585

• Registration Number: RBR-25rc6q
• Lead Sponsor: niversidade Federal de Santa Maria - UFSM

Brief Summary

Not available

Detailed Description

Not available

Study Timeline

• Results First Posted: 1900-01-01
• Study Start: 2015-04-06
• Last Update Posted: 29 May 2023

Recruitment & Eligibility

• Status: Recruitment completed
• Sex: Not specified
• Target Recruitment: Not specified

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

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

Study & Design

• Study Type: Intervention
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
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 Outcome Measures

Name	Time	Method
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)