Peter M DiFiore

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A fluid filtration system using 15 psi of pressure on the penetrating fluid was used to quantify the amount of microleakage of a stainless-steel post and a carbon-fiber post system, each placed with various cements. Statistical analysis showed that there was a significant difference in microleakage between the cements (p < 0.001). Zinc phosphate cement(More)
Modern endoscopy has been in existence for > 100 yr. As the desire for increased visualization in endodontic surgery continues, there is a constant search for better instruments and techniques to meet this demand. Endoscopy provides the surgeon with outstanding vision and ease of use. This study refines the endoscopic technique for endodontic surgery.
Four calcium hydroxide-based apexification pastes were tested for their antibacterial effects on Streptococcus sanguis. Their zones of growth inhibition on blood agar plates were measured at 2, 4, 6, and 8 days. Only the camphorated parachlorophenol and the metacresylacetate pastes showed zones of inhibition. Both of these zones of inhibition decreased with(More)
A study was conducted to evaluate Cavit, Intermediate Restorative Material, and Super-EBA as intraorifice filling materials to prevent coronal microleakage. Root canal instrumentation and obturation was done on 74 extracted single-rooted teeth. Three and one-half millimeters of the gutta-percha was removed from the coronal aspect of the root canal and(More)
The lateral periodontal cyst is a developmental odontogenic cyst associated with the lateral root surfaces of teeth. It is treated by surgical enucleation and diagnosed on the basis of clinical, radiographic, and histologic findings. This article is a case report of the surgical treatment of a lateral periodontal cyst in a unique mandibular midline(More)