Dimensional Changes of Luting Cements After Setting
نویسندگان
چکیده
منابع مشابه
Dimensional changes of luting cements after setting.
The dimensional changes of 4 types commercial luting cements after setting were examined in distilled water, using a developed thermal expansion testing apparatus. The measurements were carried out under three conditions: increasing temperature (from 37•Ž to 60•Ž), decreasing temperature (from 37•Ž to 10•Ž), and constant temperature (37•Ž). The results indicated that: (1) the zinc phosphate cem...
متن کاملSetting behaviour of luting cements monitored by an ultrasonic method.
The purpose of this study was to monitor the setting behaviour and elastic modulus of luting cements using an ultrasonic device. The ultrasonic equipment comprised a pulser-receiver, transducers and an oscilloscope. The transit time through the cement disk was multiplied by the thickness of the specimen, and the sonic velocity within the material was then calculated. The sonic velocities of the...
متن کاملIn vivo disintegration of luting cements.
The in vivo disintegration of luting cements was determined at 6- and 12-month intervals in two test series of 20 participants each. Four cements were inserted in the wells located in the mesial and distal surfaces of cast crowns. Glass ionomer, silicophosphate, polycarboxylate, and zinc phosphate cements prepared with recommended powder/liquid ratios are discussed, and are ranked with respect ...
متن کاملLuting Cements and Composite Resin Restoratives
Porcelain laminate veneers are used routinely in cosmetic dentistry. The public usually refers to this mode of treatment simply as “veneers.” Their popularity has increased because of television makeover programs, commercials, and magazine advertisements. Porcelain laminate veneers have so increased in their attractiveness that the general public is demanding this type of instant makeover. Furt...
متن کاملFinite element analysis model to simulate the behavior of luting cements during setting.
OBJECTIVES Besides the fixation of the restoration, an important function of dental luting cements is to seal the gap between tooth and restoration. However, as a result of adhesion, curing contraction is hindered, creating stresses. To maintain the seal these stresses neither exceed the bond nor the cohesive strength of the cement. The aim of this study was to evaluate a rather simple model, w...
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ژورنال
عنوان ژورنال: Dental Materials Journal
سال: 1985
ISSN: 1881-1361,0287-4547
DOI: 10.4012/dmj.4.40