Glass ionomer cement

Glass ionomer cement ( glass ionomer, GIC) is near by photo composites other material for making „white filling“.

The main advantage of glass ionomer is high content of fluorides, which are constantly released in the surroundings and very effectively hinder to occurrence and spread of dental caries. Even after many years, stock of fluorides in not exhausted because abundance of fluorides in the oral cavity (contact with toothpaste, gel Elmex) are into the structure of filling incorporated and filling is so “charging”. This attribute of glass ionomers predestine them like appropriate filling for difficult clean areas or for child´s teeth, which children still don´t know adequately clean.

As well as glass ionomers have (likewise photo composite and unlike amalgam) bond on dental tissues. There is no risk as with amalgam that healthy part of tooth could be removed. Tooth with glass ionomer filling is also beaded and resistant to burst than was the case of amalgam filling.

The main disadvantage, that limits the use of glass ionomer, is lower mechanical resistance. On the most burdened places this material can be used only as a temporary solution, because it nibbles over time. For filling with smaller size or as a lower layer under filling from more resistance photo composite can very well serve as a permanent treatment.

A definite disadvantage is further inferior aesthetic compared with photo composites. Although it is in both cases about white fillings, they have not glassy transparency of the tooth from glass ionomer. They are non-transparent, chalky and visible on the teeth.



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