The histologic response to intentional perforation in the furcations of 28 mandibular premolars in seven dogs was investigated. In half the teeth, the perforations were repaired immediately with either amalgam or mineral trioxide aggregate; in the rest the perforations were left open to salivary contamination before repair. All repaired perforations were left for 4 months before histologic exam...

The purpose of this study was to evaluate the ability of mineral trioxide aggregate (MTA) and amalgam to seal furcal perforations in extracted human molars using an anaerobic bacterial leakage model. Furcal perforations were made in 39 maxillary and mandibular human molars with a high-speed bur. These were randomly divided into two experimental groups of 18, with the remaining three teeth used ...

Use of mercury as a component of restorative material is continuing to generate controversy. There is no doubt that dental amalgam is a very good restorative material. However, at the same time, there are serious health issues with mercury. Whether the amount of mercury in the mouth can cause any serious effect is still very much controversial. Composite resin, the popular alternative material ...

The paper presents results of the study on electrochemical potentials of metallic dental materials. Seven alloys, amalgam and chromium-nickel steel were examined as well as the effect of the solution conductivity ranging from 12.5 μS/cm to 2.01 mS/cm and solution pH within the range of 5.5 to 11.2 on electrochemical potentials of the materials. Amalgam presented with the lowest changes of the s...

the microleakage of cinaally amalgam, manufactured by dr faghihi co. which is a high copper alloy and fine-cut amalgam was evaluated by radioisotope agents. the microleakage of cinaally amalgam was compared with sybraloy amalgam, manufactured by sybron/kerr co. which is a high copper alloy and spherical shape amalgam and is known as a standard amalgam alloy. the results showed that there is no ...

HEALTH POLITICAL BACKGROUND Caries is one of the most prevalent diseases worldwide. For (direct) restaurations of carious lesions, tooth-coloured composite materials are increasingly used. The compulsory health insurance pays for composite fillings in front teeth; in posterior teeth, patients have to bear the extra cost. SCIENTIFIC BACKGROUND Amalgam is an alloy of mercury and other metals an...

Aim: To determine the factors affecting selection of material choice in posterior teeth. Methods: Descriptive cross-sectional study done June-December 2015 at Liaquat University Medical and Health Sciences, Jamshoro. Individuals who refused to participate were eliminated from sample. Each dentist signed an informed consent form. Personal data entered on a proforma/consent The collection tool wa...

OBJECTIVE To compare survival rates and cost differentials between the atraumatic restorative treatment (ART) technique and amalgams by type of dental personnel in Ecuador, Panama, and Uruguay. METHODS Children 7 to 9 years of age in rural and urban schools with at least one lesion with initial cavitated enamel caries or a dentinal lesion on a first permanent molar were selected and randomize...

The leading cause of oral pain and tooth loss is from caries and their treatment include restoration using amalgam, resin, porcelain and gold, endodontic therapy and extraction. Resin composite restorations have grown popular over the last half a century because it can take shades more similar to enamel. Here, we discuss the history and use of resin, comparison between amalgam and resin, clinic...