Dean: Prof. Stefano Carossa Department of Endodontics and Operative Dentistry Dean: Prof. Elio Berutti
Sealing performance of resin composite to pulp chamber floor: evalua7on by Op7cal Coherence Tomography 1 1 1 1, 2 1 1 Boaglio Alessandro , Comba Allegra , Coscio Andrea , Alovisi Mario Alovisi Camilla , BeruC Elio , ScoC Nicola 1University of Turin, Department of Surgical Sciences, Dental School, Italy. 2 University of Turin, Department of Surgical Sciences, Clinica Oculis?ca, Italy
OBJECTIVE:
Several studies showed the importance of the coronal restora7on to obtain the success of endodon7c treatment. To date, post-‐endodon7c restora7ons are mainly performed with adhesive techniques. However, gap forma7on and marginal microleakage due to adhesive bond failure is s7ll one of the most reported problems, which could be due to different factors:composite shrinkage stress, mechanical proper7es of restora7ve materials, C-‐Factor, composite layering technique, irradia7on technique. The aim of this in vitro study was a non-‐invasive evalua7on of the composite resin adapta7on to cavity floor in post-‐endodon7c restora7ons using the op7cal coherence tomography (OCT). The null hypothesis is that there is no difference in sealing performance of the pulp chamber floor between resins of different viscosity.
GROUP 1 a 0.5 mm horizontal layer of flowable composite followed by anatomical stratification with traditional nano-filled composite
GROUP 2
GROUP 3
single layer of flowable bulk composite
anatomical stratification with traditional nano-filled composite
n=10
n=10
n=10
Sta7s7cal analysis showed a significant beQer adapta7on of flowable composites compared to the tradi7onal packable nanohybrid composites(p