Faculty Bibliography

Thirty human non-carious specimens were used in this in vitro study. The specimens were divided into three groups of 10 each: Group 1: incremental fill: Group 2: Beta-Quartz glass-ceramic inserts: Group 3: pre-cured resin composite inserts. All restorations were placed with TPH resin composite. The specimens were thermocycled and sectioned. Microleakage was determined on a scale of 0 (no microleakage) to 5 (microleakage extending to the axial wall). Results of the study indicated that Beta-Quartz glass-ceramic inserts and incrementally placed resin composite restorations exhibited significantly less microleakage compared to pre-cured resin composite inserts (P < .03, Chi-Square Test)

One of the greatest challenges to the clinician in restorative dentistry is restoration of an endodontically treated tooth. He or she is faced with many options in materials and techniques, with more than 20 prefabricated post systems currently available. These systems include a variety of post designs, different cements, and core materials, to be used in conjunction with pins and posts for the coronal restoration. An integral cast post and core is another restorative option, as is the use of prefabricated posts