Jesús Obón

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To study the radiological patterns of the bony roof of the superior semicircular canal with a view for obtaining readily applicable conclusions. 84 patients (163 petrous bones) have been studied by Multi-slice Helical Computed tomography (Philips Brilliance 6). We have determined the distribution of the different types of bone cover of the superior(More)
To evaluate the potential health issues associated with periodontal disease (PD) in dogs, 1004 teeth from 25 dogs were examined. The dogs were randomly selected, aged 2-14 years, and had at least 95% of their teeth at the first PD stage. Significant positive correlations between plaque grade (PG) and gum inflammation, gingival regression, periodontal(More)
OBJECTIVE Our objective was to study the ontogeny of the superior semicircular canal in order to describe its peculiarities. METHODS We analyzed 76 series of human embryos aged between 32 days (6mm) and newborns. The samples were cut serially and stained using Martin's trichrome technique. RESULTS In semicircular canal development there were a number of(More)
A non-human dental piece was found in a Roman Empire tomb dated the 3rd century A.C. in Zaragoza (Spain). The morphology of this piece showed mixed brachyodont (carnivores) and hypsodont (herbivores) characteristics. As a result, the taxonomical assignation of the piece was impossible. Therefore, a protocol based on the DNA sequence of the cytochrome c(More)
OBJECTIVES To analyze the ontogeny of the superior semicircular canal and tegmen tympani and determine if there are common embryological factors explaining both associated dehiscence. METHODS We analyzed 77 human embryological series aged between 6 weeks and newborn. Preparations were serially cut and stained with Masson's trichrome technique. RESULTS(More)
We have performed a study on 11 human embryos regarding the development of the tympanic ossicles and their relationship with the first pharyngeal arch. After performing measurements to date the embryos and foetuses chronologically, we performed a meticulous dissection of the temporal bones. Subsequently, they were fixed in 10% formol, decalcified with 2%(More)
The identification and definition of the radiological patterns of the posterior semicircular canal (PSC), with a view to obtain readily applicable conclusions. The parietal morphology of the PSC has been studied by multi-slice helical computed tomography (Philips Brilliance 6). We have determined the distribution of the different types of bone cover of the(More)
OBJECTIVES To study the ontogenic development of the organisation of the human middle ear ossicles structure. MATERIAL AND METHODS 46 human temporal bones of ages varying from 32 days post-conception to newborns. RESULTS The development of the structural organisation of the malleus begins at 16 weeks via two cortical fascicles situated in the neck; at(More)
INTRODUCTION AND OBJECTIVE The aetiology of the superior semicircular canal dehiscence is currently unknown. Our objective was to analyse and discuss different hypotheses about the origin of this pathology. METHODS In this study performed on 295 temporal bones, one case of partial alteration of the bony roof in the right superior semicircular canal was(More)
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