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1.
Quintessence Int ; 25(9): 599-602, 1994 Sep.
Article in English | MEDLINE | ID: mdl-7568711

ABSTRACT

Polymerization of three composite resins was evaluated after they were light cured through one of four different reflective wedges. Other experimental variables were activation times and light units used. The same conditions were used for a control group, in which photoactivation was performed directly on the test specimens. Complete polymerization was never achieved when the curing light was directed through reflective wedges.


Subject(s)
Composite Resins/chemistry , Dental Marginal Adaptation , Dental Restoration, Permanent/methods , Resin Cements , Evaluation Studies as Topic , Humans , Light , Random Allocation , Time Factors
2.
Dent Mater ; 5(4): 277-80, 1989 Jul.
Article in English | MEDLINE | ID: mdl-2638271

ABSTRACT

A clinical survey of amalgam restorations made with four proprietary alloys with low-silver and high-copper contents was followed during a two-year period, according to USPHS criteria. With the exception of one alloy, the marginal integrity was found to be very satisfactory. All the restorations lost their superficial luster in a short period of time.


Subject(s)
Dental Amalgam , Humans , Longitudinal Studies , Silver
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