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The present study provides comprehensive information to the existing literature concerning the variation in root canal morphology of the maxillary and mandibular primary molar teeth. These data may help clinicians in the root canal treatment of these teeth.

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These findings implicate that use of EGF in gelatin-microsphere dressings improves wound healing both in normal and diabetic rats.

Under field conditions in which moisture control was not effective, a high-viscosity and less technique-sensitive glass ionomer material can be used as an effective sealant material, rather than resin.

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The aim of this study was to assess the detection of proximal caries in primary teeth at three different tube potentials using Ektaspeed films, storage phosphor plates (SPPs), and a charge-coupled device (CCD). Fifty-three extracted human primary molars with natural proximal caries were radiographed with three different imaging modalities--Digora Optime SPP system, RVGui CCD system, and Ektaspeed films--at 50-, 65-, and 70-kV tube potentials. Three observers scored the resultant images for the presence or absence of caries. The definitive diagnosis was determined by stereomicroscopic assessment. The diagnostic accuracy for each imaging modality was expressed as the area under the receiver operating characteristic curves (A(z)). Differences among the A(z) values were assessed using two-way ANOVA and t tests. Kappa was used to measure inter- and intra-observer agreement. Higher accuracy was found for SPPs compared to film and CCD images at all tube potentials. Accuracy was significantly different only at 50-kV tube setting in favor of SPPs (p < 0.05). Inter- and intra-observer agreement was high for all systems. A SPP system can be recommended for dental peadodontic clinics particularly with 50-kV tube potential for the diagnosis of proximal caries since further advantages include the elimination of chemical processing, image enhancement, and a better low-contrast detectability performance.

Objectives: To determine rates of pulpal exposure during caries removal with an excavator or a bur, to assess success rates of vital pulp therapies in both cases, to analyze pulpal bleeding as an indicator of primary teeth treatability. Study Design: Of the 352 primary mandibular molars with deep carious lesions, 141 with pulp exposed during the removal of caries were grouped according to type of instrument causing pulpal exposure and existence of bleeding at the exposure site. Teeth suitable for direct pulp capping or formocresol pulpotomy were treated and followed up for two years. Results: The difference between the rates of pulpal exposure with an excavator (52.5%) or a bur (47.5%) was insignificant. The treatment success rate of teeth with pulp exposed by an excavator (15.8%) was significantly lower than teeth with pulp exposed by a bur (48.8%), regardless of whether bleeding existed at the exposure site or not; however, when bleeding existed, this difference was insignificant (15.8% and 40.6%, respectively). Conclusions: Pulpal exposure possibility during caries removal caused by an excavator and a bur was similar, the treatment success rate was lower when the exposure was caused by an excavator, the existence of pulpal bleeding resulted in mistakes in diagnoses.