Dentinal fluid flow and cuspal displacement in response to resin composite restorative procedures

Abstract

Objectives: The aim of this study was to correlate the rate and magnitude of dentinal fluid flow (DFF) with cuspal displacement in response to resin composite restorative procedures. Methods: Ten extracted human maxillary premolar teeth with an extensive MOD cavity preparation were connected to an automated fluid flow measurement apparatus (Flodec), and a direct current differencial transformer (DCDT) was attached to each cusp. The rate, magnitude and direction of DFF and cuspal displacement were recorded simultaneously in response to each stage of resin composite restorative procedures. Results: Cuspal displacement and DFF in outward and inward directions accompanied each stage of the proce..