Dental crowns are made to fit over your teeth. Crowns are connected to abutments, fixed into an implant that is linked to the jaw bone, and all remain in location with the assistance of dental cement.
Dental glue for crowns can be made from a range of materials, including powdered glass and artificial resins. Dental cements are likewise used in other dental work, particularly when attaching braces to teeth. Some are even activated with ultraviolet light.
How Does Dental Cement for Crowns Work
Dental glue works by producing resistance and retention when compressed, and some cements also form a chemical bond. The force of the compressed cement underneath the crown holds it together. Chemically bonding seals supply additional strength, and they’re less likely to break down than non-bonding cements. But when a crown needs replacement or repair, it’s more difficult to get rid of. Dr. DeWood suggests bonding cements are just needed in crowns whose strength depends on a chemical adhesive. In patients who grind their teeth, for instance, this additional stability increases the possibilities that the crown will stay undamaged.
Temporary Dental Cement
While you wait for an irreversible crown to be produced, dental professionals generally fit a temporary crown with a cement that’s fairly simple to break. Restorative Dental Materials deals with a range of dental cements, commenting that zinc oxide-eugenol cement is typically used as the cement for temporary crowns. This is made from zinc oxide powder, eugenol and olive oil.
Cements for Permanent Crowns
Zinc phosphate, glass ionomer (GI), resin-modified glass ionomer (RMGI) and resin cements are some dental glues that develop a semi-permanent seal. Zinc phosphate is made from zinc oxide powder and phosphoric acid liquid, inning accordance with Restorative Dental Products. Mojdeh Dehghan, DDS and other dental professionals state it was one of the earliest and most trustworthy cements offered. Newer dental glue for crowns consists of GI and RMGI cement, which Dr. Dehghan explains are normally made from fluoroaluminosilicate glass powder and polyacrylic acid liquid. RMGI cement likewise includes hydrophilic methacrylate monomers.
On the other hand, resin cements include synthetic resins and dimethacrylates, which affect the consistency and strength of the cement.
See also: Pain in a Crowned Tooth.
Different Types of Dental Cements
Dental practitioners think about a range of aspects when deciding which cement to use. For instance, GI cement chemically bonds to stainless-steel and other metals, but not porcelain, and it is a little soluble in oral fluids. Robert A. Lowe, DDS describes that today’s dental experts typically choose RMGI cement because it is completely insoluble. However, inning accordance with Dr. Dehghan, all-ceramic crowns should not be connected with RMGI cement since they’re likely to fracture.
Resin cements, on the other hand, can be used with ceramic crowns, and dental practitioners choose between light-cured, dual-cured and auto-cured resins. Light-cured cements are useful when the crown is thin and quickly available, whereas dual-cured cements are used when light penetration is likely to be poor. Prior to connecting the crown with either of these cements, dentists use a dental bonding representative. Auto-cured cements do not need this bonding representative, and may be used where light exposure and dental preparation is difficult. Though the chemical bonding in auto-cured cements is weaker than in other resin cements.
Whichever seal a dental expert uses to connect a crown, its longevity depends on good oral care. Crowns just cover teeth as far as the gumline, where bacteria can get in and cause decay. If you have a crown, brush and floss it routinely as part of your normal dental health routine.