Braden and his coauthors give a comprehensive overview of the use of polymers and polymer composites as dental materials. These comprise polyelectrolyte based materials, elastomers, glassy and crystalline polymers and fibres. Such materials are used in dentistry as restorative materials, hard and soft prostheses, and impression materials. The chemistry of materials is reviewed, together with mechanical, thermal, visco-elastic and water solution properties. These properties are related to clinical performance, with emphasis on some of the difficulties inherent in developing materials for oral use. Indications are given of possible future developments. 1 Polyelectrolyte Restorative Materials.- 1.1 Introduction.- 1.2 Polyelectrolytes.- 1.3 The Rôle of Water.- 1.4 Zinc Polycarboxylate Cements.- 1.5 Glass-Ionomer Cements.- 1.6 Resin-Modified Glass-Ionomers.- 1.7 Conclusions.- 1.8 References.- 2 Glassy Polymers.- 2.1 Unfilled Resins.- 2.2 Filled Resins.- 2.3 References.- 3 Elastomeric Materials.- 3.1 Impression Materials (M. Braden).- 3.2 Soft Prosthesis Materials (S. Parker). Polymers and polymer composites are the mainly used dental materials. They are used as restorative materials as hard and soft protheses as well as impression materials. The chemistry as well as the physical, mechanical and the thermal behavior of these versatile materials is described.
