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Degree of Conversion (CROSBI ID 59922)

Prilog u knjizi | izvorni znanstveni rad

Tarle, Zrinka ; Par, Matej Degree of Conversion // Dental Composite Materials for Direct Restorations / Miletic, Vesna (ur.).: Springer, 2018. str. 63-85 doi: 10.1007/978-3-319-60961-4_5

Podaci o odgovornosti

Tarle, Zrinka ; Par, Matej

engleski

Degree of Conversion

The degree of conversion (DC) can be defined as the extent to which monomers react to form polymers or as the ratio of C=C double bonds that are converted into C-C single bonds. In the polymerization of bifunctional methacrylates, the complete conversion is never attainable because diffusional restrictions in later stages of the polymerization reaction prevent a certain amount of monomer molecules from reaching reaction sites. Thus the DC in dental composites usually varies between 50 and 80 %. The DC is a fundamental attribute of a cured composite since it affects virtually all other material properties which are important for the clinical success of the restoration. Although the composition of contemporary composites is fine-tuned to attain optimal DC and the related properties if properly handled and light-cured, poor DC due to unfavorable curing conditions or operators’ insufficient understanding of the curing procedure may affect critical material properties and increase the risk of clinical failure. This chapter reviews various factors determining the DC, properties of composite materials which are dependent on the DC, as well as methods used to evaluate the DC.

Dental Composites ; Degree of Conversion ; Methacrylate Resins

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Podaci o prilogu

63-85.

objavljeno

10.1007/978-3-319-60961-4_5

Podaci o knjizi

Dental Composite Materials for Direct Restorations

Miletic, Vesna

Springer

2018.

978-3-319-60960-7

Povezanost rada

Dentalna medicina

Poveznice