Gutta percha points composition

Table 10.1 Composition of typical commercial gutta percha points [7]...

Studies have shown that the composition of gutta percha points varies between manufacturers [7], In particular, the proportions of gutta percha polymer and zinc oxide filler may differ widely. These differences may lead to variations in mechanical properties and also in the ease of flow on heating between different proprietary brands. 

Materials employed as points are usually fabricated from gutta percha, though other materials have been considered (see Sections 10.2 and 10.3). Materials for sealers may be cements, including acid-base cements, or methacrylate monomer-based materials of the type used in composite resins. However, more commonly in modem endodontics, cements based on tricalcium silicate systems that set by hydration processes are used. This chapter discusses the wide variety of possible materials that can be used for this purpose, with some indication of the clinical effectiveness. 

Friedman C M, Sandrik J L, Heuer M A, Rapp, G W (1975) Composition and mechanical properties of gutta-percha endodontic points. JDent Res, 54, 921-925. 

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