978-3-659-94294-5

Composites: a new era of restorative materials

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Summary:

The first material developed for use as a direct esthetic restorative material was silicate cement. Introduced in the late 1800s, the cement was prepared from an alumina/silica glass and a phosphoric acid liquid. Highly soluble in oral fluids, silicate deteriorated rapidly, yet remained the favored material until the early 1950s. Dissolution, discoloration, loss of translucency and lack of adequate mechanical properties contributed to its eventual replacement. Its main advantage was the slow release of fluoride from the glass phase. Self curing unfilled acrylic resin were introduced around 1945 as a substitute for silicate cement and were in moderate use in the 1950s. These materials were related to denture base resins and were much less soluble and more color stable than silicates. They were easy to use, polishable and had good initial esthetics. Their main problems were high shrinkage upon polymerization, large thermal dimensional change, eventual discoloration and a high wear rate.

Author:

Pallavi Vashisth

Biographie:

Dr. Pallavi Vashisth has done BDS, in the year 2008 and MDS in 2011 in Speciality of Pedodontics and Preventive Dentistry. I have many National and International Publications to my credit. Currently working as Assistant professor in Dept. of Pedodontics in Institute of Dental Sciences Bareilly.

Author:

Mudit Mittal

Biographie:

Number of Pages:

144

Book language:

English

Published On:

2019-09-17

ISBN:

978-3-659-94294-5

Publishing House:

LAP LAMBERT Academic Publishing

Keywords:

Composites, Resotrative materials, New Era, Methods

Product category:

MEDICAL / Dentistry / General