Guyana's Public Procurement Commission. has debarred M Sukhai Contracting Services. from tendering for state contracts for a period. of one year commencing Read More. Minor works remain on the East Coast. Demerara Public Road Widening Project. Traffic signals and road signs delayed due. to COVID19 Read More.
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Get PriceAim: To evaluate the effect of powdertowater ratio on the retention characteristics of white mineral trioxide aggregate (MTA; Angelus, Londrina, Pr, Brazil) over time. Methods: One hundred and thirtyfive root dentin slices from extracted singlerooted human mandibular premolar teeth were instrumented to achieve a diameter of mm.
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