Main

Cardoso P de C, Bastos de Oliveira AR et al. Braz J Oral Sci 2011; 10: 12–16

This in vivo study, compared the resin composite contact areas achieved by four different techniques used to restore interdental cavities. All employed a preformed metallic matrix (Unimatrix) to create the missing tooth surface and either a customised wooden or elastic interdental wedge. Two of the techniques used seperating rings (Unimatrix Kit), one method a translucent contact spatula, and the fourth technique used resin inserts (3M ESPE). Each method was assessed and graded after placing ten resin composite restorations (n = 40 in total), by passing dental floss through the contact area immediately after restoration and 30 days later. No information was given on randomisation. No statistical difference was found between the different restorative techniques.