Resin-based composites are today one of the most widely used restorative materials. However, its most debilitating problem is volumetric shrinkage due to polymerization which may result in contraction stress and subsequent micro leakage and adhesion failure. Preheating composites prior to polymerisation have several advantages over conventional composites. This review article highlights the mechanical properties, advantages and significance of preheated composites.

TheraCal LC, the focus of this article, is a material that creates a new category of resin-modified calcium silicates (RMCS). It is a light-cured, resin-based, and highly radiopaque liner designed to release calcium to promote hard-tissue formation, and is indicated for use under direct restorative materials as a replacement to calcium hydroxide and other calcium silicate-based materials, glass ionomers, eugenol-based sedative materials, and pulp capping restoratives. TheraCal LC exhibits several properties to help maintain ideal hard-tissue health and to reduce the incidence of postoperative sensitivity. This article is aimed to review the composition, method of application, setting reaction, properties and uses of TheraCal LC. TheraCal LC is interesting and promising product, which have the potential of creating major contributions to maintaining pulp vitality.

The unique morphology of dilacerated and S-shaped root canals often poses utmost challenges in their endodontic management. Dilaceration is defined as developmental anomaly in which there has been an abrupt change in the axial inclination between the crown and the root of a tooth. Periapical radiographs and CBCT are the most appropriate way to diagnose the presence of root dilacerations. Also, clinician is required to have an insight of the morphology of tooth related to its shape, form and structure before commencing treatment. This article is an attempt to review root dilaceration as well as two interesting case reports of root dilacerations.