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Chapter-11 Composite Restorations

BOOK TITLE: Textbook of Preclinical Conservative Dentistry

Author
1. Garg Nisha
2. Garg Amit
ISBN
9789350250778
DOI
10.5005/jp/books/11344_11
Edition
1/e
Publishing Year
2011
Pages
25
Author Affiliations
1. Ex-Resident, Government Dental College, Patiala, Presently at, Manav Rachna Dental College, Faridabad, Haryana, India, Manav Rachna Dental College, Faridabad, Haryana, India, Government Dental College, Patiala, Sri Sukhmani Dental College and Hospital, Dera Bassi, Mohali, Punjab, India, Bhojia Dental College and Hospital, Baddi, Himachal Pradesh, India
2. Government Dental College, PGIMS, Rohtak, Haryana, India, Manav Rachna Dental College, Faridabad, Haryana, India, Sri Sukhmani Dental College and Hospital, Dera Bassi, Mohali, Punjab, India, Fortis Escorts Heart Institute, New Delhi, India
Chapter keywords

Abstract

During the first half of the 20th century, silicates were the only tooth colored aesthetic materials available for cavity restoration. Although, silicates release fluoride, they are no longer used for permanent teeth because they become severely eroded within a few years. The search for an ideal aesthetic material for conservative restorations was initiated by two major driving forces. Firstly, there was a requirement to produce a material which could overcome the major deficiencies of the silicate materials, namely, erosion, brittleness, acidity and a moisture sensitivity which demands very careful manipulation. Secondly, development in polymer technology produced resins which could be readily cured at mouth temperature and with aid of pigments and fillers could be made to resemble the natural tooth in appearance. Advances in polymer chemistry led to the evolution of composite resin. Composite refers to a three dimensional combination of atleast two different materials with a distinct interface. Composites typically involve a dispersed phase or filler particles that are distributed within a continuous phase (matrix phase). In proper combinations, this material provides properties that cannot be obtained with any one of the components acting alone. Composites are used for restorations, as pit and fissure sealants, dentin bonding agents, in fixed prosthodontics as cementing and veneer material.

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