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Zinc phosphate was the very first dental cement to appear on the dental marketplace and is seen as the “standard” for other dental cements to be compared to. The many uses of this cement include permanent cementation of crowns, orthodontic appliances, intraoral splints, inlays, post systems, and fixed partial dentures.
The use of gold as a restorative material for the production of inlays and onlays is fading due to the increase in usage of more aesthetically pleasing tooth coloured materials. Gold has many advantages as a restorative material, including high strength and ductility, making it ideal to withstand the masticatory forces put upon the teeth.
The post on the left is a tapered post, the one on the right is a parallel post. In post and core fabrication, it is desirable that the post descend at least two-thirds of the length of root canal (or not less than the height of the crown) in order to provide sufficient retention.
Zinc phosphate is the luting cement that has been about the longest and has become very firmly established. It is still routinely used by almost one-third of UK practitioners today. [8] It is usually made up of a powder (zinc oxide and magnesium oxide) and a liquid (aqueous phosphoric acid). Mixing of zinc phosphate is done by using a spatula ...
James Powel, USA TODAY. January 7, 2025 at 7:22 PM. A 12-year-old girl alleged to have fatally stabbed her father in North Las Vegas is set to be evaluated for competence in a Clark County court ...
A 16-year-old New Mexico boy was arrested Saturday morning after he allegedly gunned down his parents and teenage siblings and then drunkenly called 911 to confess to the quadruple homicide ...
The nation said a proper farewell to former President Jimmy Carter during his funeral service in Washington D.C. on Thursday. President Joe Biden, who declared Thursday a national day of mourning ...
The "graded" zirconia crown has a darker cervical area consisting of tetragonal zirconia, a main tooth color in the buccal area, and a translucent incisal edge consisting of cubic zirconia. The only thing a dental technician has to do is to use the proper height of the zirconia block so that the crown fits in all the different color zones.