The patient presented for a routine checkup; it had been two years since the last examination.
Bite-wing radiographs and intra-oral examination revealed caries in the distal of the first premolar and the disto-occlusal pit of the second premolar. The decision was made to restore the teeth with a micro-hybrid posterior composite.
A minimally invasive cavity design was used to reach and excavate the caries in both teeth. Rubber dam isolation was applied to prevent contamination during the bonding process.
Tight, anatomical contact “zones” (as distinct from thin contact points) are required for the ideal restoration of posterior teeth, to prevent tooth movement and food packing from open and unstable contact points. A Garrison sectional matrix ring was applied to the first premolar to ensure a perfect contact was achieved.
The teeth were then restored with an etch and rinse (fourth generation) adhesive, a flowable composite liner, and a microhybrid composite. The burnished Garrison sectional matrix band ensured an excellent “contact zone” that was tight against the second premolar.
The final post-operative outcome, following debanding, polishing, and removal of the rubber dam. An excellent anatomical form was achieved in combination with tight, broad contacts.