From Volume 43, Issue 7, September 2016 | Pages 608-616
This is the second part of this two-part series. The first paper discussed key aspects of case selection, planning and design of resin-bonded bridges (RBBs). This paper outlines the important clinical stages involved in the successful provision of RBBs, including communication with the dental laboratory, clinical protocols and management of the de-bonded RBB.
Shade selection should take place prior to the impression stage to prevent tooth dehydration which can result in transient shade change due to desiccation of enamel, leading to poor shade match of the final restoration.1
The shade-taking procedure should also take into account the use of opaque resin cement where this is planned, which may reduce the translucency of abutment teeth.
The shade-taking protocol is as follows:
Place a cotton wool roll behind the chosen abutment tooth to mimic the effect of opaque resin cement. This may alter the appearance of the abutment tooth, usually giving it a creamier appearance incisally. Therefore, this must be factored in during shade selection and prescribing characterizations for the pontic to the dental technician. In some cases, a metal backing can be bonded to the contralateral tooth if it is not being used as an abutment, to match the altered shade of the abutment tooth.
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