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The external and internal anatomy of 628 extracted, mandibular first and second molars was studied. The external anatomy was studied by measuring each tooth and by observing the direction of the root curvatures from the facial surface. The internal anatomy of the pulp cavity was studied by a method of making the teeth translucent.
The complex anatomy and diagnosis of dens invaginatus make endodontic treatment of such teeth difficult. This case describes combined nonsurgical and surgical treatment of a maxillary lateral incisor with a normally shaped canal and a dens invaginatus type III with a lateroradicular lesion. The root canal was treated conventionally with gutta-percha and a… (More)
Twenty neonates whose mothers had received meperidine (1.0 to 1.5 mg/kg) intravenously within three hours of delivery were studied to determine the effectiveness of naloxone in reversing neonatal respiratory depression. The following measurements were carried out within 20 to 30 minutes after delivery: minute ventilation, end tidal CO2, and ventilatory… (More)
As predominant component in the venom of many dangerous animal species, toxins have been thoroughly investigated for drug design or as pharmacologic tools. The present study demonstrated the use of size and hydrophobicity of amino acid residues for the purposes of quantifying the valuable sequence-structure relationship and performing further analysis of… (More)
Syphilitic dementia presenting with Adie's tonic pupil and mesial temporal lobes hyperintensities Demência sifilítica apresentando pupila tônica de Adie e hiperintensidades temporais mesiais ABSTRACT Syphilis became a rare cause of dementia in the present days. Screening tests for syphilis are no longer recommended according to 2001 American Academy of… (More)
Through the analyses of the Miyazawa-Jernigan matrix it has been shown that the hydrophobic effect generates the dominant driving force for protein folding. By using both lattice and off-lattice models, it is shown that hydrophobic-type potentials are indeed efficient in inducing the chain through nativelike configurations, but they fail to provide… (More)
Vitamin B12 deficiency may induce neuropathy, myelopathy, dementia and optic neuropathy. The diagnosis is established by vitamin B12, homocysteine and methylmalonic acid measurements. Myelin and axon destruction in the white matter of the spinal cord are observed. The posterior column of the cervical and thoracic level is the most common involved area. The… (More)