FAQs

One would have thought that someone as old as I, would know exactly how long a given lecture would take to present! Apparently not, given that, at a recent lecture for the BDIA virtual meeting, I over-ran and agreed to respond to Frequently Asked Questions (FAQs) by publishing my responses later. The questions related to resin composite restorations, so here we go!

‘What do you suggest in cavities that need lining before filling with composite?’ On a similar theme, ‘Do you use Dycal under deep composite restorations?’

Historically:

The contemporary view² is that:

Research to back up these comments includes the following. Von Fraunhofer and co-workers³ found an increase in microleakage, post-operative sensitivity and potentially secondary caries when a lining was present under a posterior composite restoration. Blum and colleagues¹ found that prevalence of post-op sensitivity after placement of posterior composite restorations was 20% greater when a lining was placed. Last, Schwendicke et al,⁴ in a systematic review, concluded that there was insufficient evidence to recommend cavity linings based on their antibacterial effects, adding that dentists should be aware that the use of cavity liners is not recommended by clinical studies.