Introduction: The restoration material commonly used as core material for pulpless posterior teeth is mostly amalgam due to its high strength and low cost and it can be used with or without pin. The aim of this study was to evaluate the influence of post material on stress distribution in mandibular second premolar tooth by finite element analysis. Method: The stress distribution was analyzed i...

Dental amalgam has served as an excellent and versatile restorative material for many years. There is still no adequate economic alternative for dental amalgam. Pins are used whenever adequate resistance and retention forms cannot be established with slots.locks and other undercuts only. It is an important adjunt in the restoration of extensive carious teeth. Pins not only helps in binding of a...

The posterior restorative material of choice depends on the individual clinical situation and patient. Amalgam has a long history of use and clinical success. Esthetic restorations are increasingly in demand, and include glass ionomers, compomers and composite resins. Fluoride release is a desirable attribute in a restorative material, as are wear resistance, low polymerization shrinkage and lo...

The badly decayed molar teeth of a 12-year-old were restored using resin composite and ceramic restorations. The maxillary first left permanent molar, which had an extensive carious lesion that had destroyed most of the coronal hard tissues of the tooth, was restored to shape and function with a heat-treated resin composite onlay restoration. The restoration was followed up for two years. The m...

T he widespread use of pins to provide retention for amalgam restorations began with Markley’s’ description of cemented stainless steel pins. In 1966 the selfthreading pin technique was introduced.2 Unlike cemented pins, which rely on cement to hold them in place, self-threading pins are larger than the pinhole and are threaded into it. The cutting action of the threads retains self-threading p...

AIM To estimate the quantity of dental amalgam that Ontario dentists release into waste water. METHODS Information from a self-administered postal survey of Ontario dentists was combined with the results of other experiments on the weight of amalgam restorations and the quantity of amalgam waste that bypasses solids separators in dental offices. Algorithms were developed to compute the quanti...