Results 251 to 260 of about 530,420 (288)
Some of the next articles are maybe not open access.
Journal of Endodontics, 2002
The purpose of this study was to determine the distance between the minor foramen and the anatomic apex from digital and conventional radiographs. Thirty permanent single-canal teeth with mature root apex were used. After access preparation, a K-file was inserted into the canal until the tip of the file was just seen at the minor foramen under a x40 ...
Bernice, Melius, Jin, Jiang, Qiang, Zhu
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The purpose of this study was to determine the distance between the minor foramen and the anatomic apex from digital and conventional radiographs. Thirty permanent single-canal teeth with mature root apex were used. After access preparation, a K-file was inserted into the canal until the tip of the file was just seen at the minor foramen under a x40 ...
Bernice, Melius, Jin, Jiang, Qiang, Zhu
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Anatomical Investigation of the Cardiac Apex
Revista Argentina de Cardiologia, 2022JORGE TRAININI +8 more
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Acta Neurochirurgica, 2020
Surgical approaches to the petrous apex region are extremely challenging; while subtemporal approaches and variations represent the milestone of the surgical modules to reach such deep anatomical target, in a constant effort to develop minimally invasive neurosurgical routes, the endoscopic endonasal approach (EEA) has been tested to get a viable ...
Topczewski T. E. +11 more
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Surgical approaches to the petrous apex region are extremely challenging; while subtemporal approaches and variations represent the milestone of the surgical modules to reach such deep anatomical target, in a constant effort to develop minimally invasive neurosurgical routes, the endoscopic endonasal approach (EEA) has been tested to get a viable ...
Topczewski T. E. +11 more
openaire +3 more sources
Graded Eyelid Crease Approach to the Superior Orbital Apex: An Anatomical Study
Ophthalmic Plastic & Reconstructive SurgeryPurpose: To describe a graded eyelid crease approach to access the superior orbital apex, and to quantify the working space enabled with the sequential release of structures along the superior orbital rim. Methods: Cadaveric dissection study of 7 cadaver heads (14 orbits).
Jessica Y. Tong +4 more
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The Laryngoscope, 1980
AbstractSome surgeons have shown that tumors of the internal auditory canal and cerebello‐pontine angle may be removed with preservation of hearing through the suboccipital approach. If hearing is to be conserved, the cochlear division of the VIIIth cranial nerve and blood supply of the labyrinth must be preserved.
G H, Domb, R A, Chole
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AbstractSome surgeons have shown that tumors of the internal auditory canal and cerebello‐pontine angle may be removed with preservation of hearing through the suboccipital approach. If hearing is to be conserved, the cochlear division of the VIIIth cranial nerve and blood supply of the labyrinth must be preserved.
G H, Domb, R A, Chole
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Sexual Plant Reproduction, 1992
In the young ovule of Welwitschia mirabilis the nucellar apex is dome shaped and starch begins to accumulate near the female gametophyte. With the degeneration of the cells of the nucellar apex, a pollen chamber is formed, which contains the micropylar fluid. Starch storage increases considerably in the upper part of the nucellus.
CARAFA, ANNA MARIA +2 more
exaly +3 more sources
In the young ovule of Welwitschia mirabilis the nucellar apex is dome shaped and starch begins to accumulate near the female gametophyte. With the degeneration of the cells of the nucellar apex, a pollen chamber is formed, which contains the micropylar fluid. Starch storage increases considerably in the upper part of the nucellus.
CARAFA, ANNA MARIA +2 more
exaly +3 more sources
American Heart Journal, 1991
The site of ventricular stimulation is an important variable in the initiation of ventricular tachycardia (VT) by programmed ventricular stimulation. Among 169 patients studied consecutively, 17 (10%) had ventricular tachycardia induced by programmed electrical stimulation from the right ventricular outflow tract but not from the apex.
L S, Klein +5 more
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The site of ventricular stimulation is an important variable in the initiation of ventricular tachycardia (VT) by programmed ventricular stimulation. Among 169 patients studied consecutively, 17 (10%) had ventricular tachycardia induced by programmed electrical stimulation from the right ventricular outflow tract but not from the apex.
L S, Klein +5 more
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The anatomical development of the shoot apex of the maize cultivar - Gaspé flint.
1965Roscoe, M. (Supervisor)
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Supracochlear approach to the petrous apex: case report and anatomic study.
The American journal of otology, 1999The case of an 11-month old infant with petrous apex abscess drained through the supracochlear air cells prompted an anatomic study of the dimensions of this approach. Of the various approaches to the petrous apex, the supracochlear dissection has been the least described.Twenty temporal bones were dissected to completely expose the epitympanum.
F F, Telischi, M, Luntz, M L, Whiteman
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Operative Neurosurgery
BACKGROUND AND OBJECTIVES: The Petrous Apex (PA) is one of the most difficult areas to access within the skull base. This study qualitatively and quantitatively analyses the most common approaches to the PA, comparing the zero-degree endoscopic endonasal approach (EEA), contralateral transmaxillary approach (CTM)
Federico Valeri +9 more
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BACKGROUND AND OBJECTIVES: The Petrous Apex (PA) is one of the most difficult areas to access within the skull base. This study qualitatively and quantitatively analyses the most common approaches to the PA, comparing the zero-degree endoscopic endonasal approach (EEA), contralateral transmaxillary approach (CTM)
Federico Valeri +9 more
openaire +2 more sources