scholarly journals From scales to armor: Scale losses and trunk bony plate gains in ray‐finned fishes

2021 ◽  
Author(s):  
Alexandre Lemopoulos ◽  
Juan I. Montoya‐Burgos
Keyword(s):  
Bony Plate

ANATOMICAL VARIATIONS OF FORAMEN OVALE AND CLINICAL SIGNIFICANCE

2021 ◽  
pp. 29-31
Author(s):  
Gyan Prakash Mishra ◽  
Ajay Singh Rajput ◽  
Stuti Tandon
Keyword(s):  
Anterior Margin ◽  
Percutaneous Biopsy ◽  
Diagnostic Procedures ◽  
Anatomical Variations ◽  
Middle Cranial Fossa ◽  
Mandibular Nerve ◽  
Foramen Ovale ◽  
Emissary Vein ◽  
Bony Plate ◽  
Cranial Fossa

INTRODUCTION: The foramen ovale is present in sphenoid bone which transmits the mandibular nerve, accessory meningeal artery, emissary vein and the lesser petrosal nerve. This study was conducted on a total 100 si MATERIALS & METHODS: des in 50 dry adult skulls. The shape of foramen will be determined by a visual examination. Margins of foramen were carefully observed for the abnormal bony outgrowths such as sharp bony projections (spine), small blunt bony projection (tubercle), bony plate and bony bar. We obs RESULTS: erved the variations in shape of foramen ovale. We found oval, almond, round, triangular, slit like and irregular shaped in 62%, 20%, 9%, 4%, 3% and 2% foramina ovale respectively. We also observed abnormal bony outgrowths in the foramen ovale like spines, tubercles, bony plate and bony bar. Abnormal bony bar was dividing the foramen ovale in 2 compartments (Anterior and Posterior). The preci CONCLUSIONS: se knowledge of variations of foramen ovale is of valuable contribution for neurosurgeons to development of new and different techniques to approach the middle cranial fossa. In our study we found , 100% tubercles and 80% spines were arising from anterior margin of foramen ovale. These ndings are important for neurosurgeons to approach middle cranial fossa via foramen ovale for neurosurgical and diagnostic procedures like percutaneous biopsy of cavernous sinus tumours, electroencephalographic analysis, microvascular decompression , percutaneous trigeminal rhizotomy and administration of anaesthesia to the mandibular nerve. Surgeons should avoid to go , close to the anterior margin of foramen ovale as spines and tubercles could interrupt the procedures.

scholarly journals Effect of Rough Surface Platforms on the Mucosal Attachment and the Marginal Bone Loss of Implants: A Dog Study

Materials ◽  
2020 ◽  
Vol 13 (3) ◽  
pp. 802 ◽  
Author(s):  
Javier Montero ◽  
Alberto Fernández-Ruiz ◽  
Beatriz Pardal-Peláez ◽  
Alvaro Jiménez-Guerra ◽  
Eugenio Velasco-Ortega ◽  
...  
Keyword(s):  
Soft Tissue ◽  
Bone Resorption ◽  
Bone Loss ◽  
Linear Regression Analysis ◽  
Butt Joint ◽  
Marginal Bone Loss ◽  
Machined Surface ◽  
Bony Plate ◽  
Immediate Implants ◽  
Tissue Attachment

The preservation of peri-implant tissues is an important factor for implant success. This study aimed to assess the influence of the surface features of a butt-joint platform on soft-tissue attachment and bone resorption after immediate or delayed implant placement. All premolars and first molars of eight Beagle dogs were extracted on one mandible side. Twelve-weeks later, the same surgery was developed on the other side. Five implants with different platform surface configurations were randomly inserted into the post-extracted-sockets. On the healed side, the same five different implants were randomly placed. Implants were inserted 1 mm subcrestal to the buccal bony plate and were connected to abutments. The primary outcome variables were the supracrestal soft tissue (SST) adaptation and the bone resorption related to the implant shoulder. The SST height was significantly larger in immediate implants (IC95% 3.9–4.9 mm) compared to delayed implants (IC95% 3.1–3.5 mm). Marginal bone loss tended to be higher in immediate implants (IC95% 0.4–0.9 mm) than in delayed implants (IC95% 0.3–0.8 mm). Linear-regression analysis suggested that the SST height was significantly affected by the configuration of the platform (0.3–1.9 mm). Roughened surface platforms resulted in higher SST height when compared to machined surface platforms. Marginal bone loss was less pronounced in roughened designs.

KTP laser assisted excision of glomus tympanicum

1998 ◽  
Vol 112 (10) ◽  
pp. 956-958 ◽  
Author(s):  
N. C. Molony ◽  
M. Salto-Tellez ◽  
W. E. Grant
Keyword(s):  
Blood Loss ◽  
Vascular Lesion ◽  
Ktp Laser ◽  
Vascular Tumour ◽  
Complete Excision ◽  
Facial Recess ◽  
Pulsatile Mass ◽  
Glomus Tympanicum ◽  
Bony Plate ◽  
History Of

AbstractA 39-year-old female with a two-year history of mild hearing loss and discomfort on air flight descent was found to have a pulsatile mass behind an intact tympanic membrane. A suspected diagnosis of glomus tympanicum was confirmed by computed tomography (CT) scan imaging. The lesion filled the mesotympanum and hypotympanum but the jugular bony plate was intact, confirming the tympanic site of the lesion. This very vascular tumour was exposed by a tympanomeatal flap and the KTP laser used to shrink and coagulate the tumour progressively with minimal haemorrhage and blood loss. Complete excision of the lesion was achieved without the need for bony removal, and with minimal blood loss. The use of the KTP laser to coagulate this vascular lesion allowed safe removal of the tumour and avoided the need for extended facial recess or hypotympanotomy surgery.

A CAD–CAM-prototyped temporomandibular condyle connected to a bony plate to support a free fibula flap in patients undergoing mandiblectomy: A pilot study with 5 years of follow up

2016 ◽  
Vol 44 (7) ◽  
pp. 811-819 ◽  
Author(s):  
Leonardo Ciocca ◽  
Achille Tarsitano ◽  
Claudio Marchetti ◽  
Roberto Scotti
Keyword(s):  
Pilot Study ◽  
Free Fibula Flap ◽  
Fibula Flap ◽  
Bony Plate ◽  
Cad Cam ◽  
Free Fibula

Case of Congenital Occlusion of the Right Posterior Naris by a Bony Plate

1912 ◽  
Vol 27 (7) ◽  
pp. 359-360
Author(s):  
H. Bell Tawse
Keyword(s):  
Bony Plate ◽  
The Right

Simple Diagnostic Method to Assess the Available Bone for Immediate Implant Placement in an Extracted Socket

2011 ◽  
Vol 37 (4) ◽  
pp. 473-476 ◽  
Author(s):  
Ramesh Chowdhary ◽  
Neeraj Chandraker
Keyword(s):  
Gingival Recession ◽  
Tooth Replacement ◽  
Mapping Procedure ◽  
Implant Placement ◽  
Endosseous Implant ◽  
Bony Plate ◽  
Immediate Implant ◽  
Palatal Bone ◽  
Relationship Of

Abstract The success rate of immediate tooth replacement has been well documented in the literature. To achieve long-term success of dental implants, evaluation of the dimensions of the resorbing alveolar process must be accurate because an implant should be surrounded by at least 1 mm of bone. To minimize facial gingival recession, an intact labial bony plate along with an osseous-gingival relationship of 3 mm on the facial aspect of the failing tooth has been suggested. This article mentions a technique wherein the amount of available labial and palatal bone of an extracted socket can be assessed by using the extracted tooth that is to be replaced with an endosseous implant and a ridge mapping procedure without reflecting the flap.

scholarly journals Temperature Rises of Metallic and Bony Plate in Water after Ultrasound Irradiation.

1999 ◽  
Vol 14 (2) ◽  
pp. 41-45 ◽  
Author(s):  
Takahiro KIYAMA ◽  
Keisuke KAWAKAMI ◽  
Yasutomo SUZUKI ◽  
Kazumasa YAMADA ◽  
Akihisa TORII
Keyword(s):  
Ultrasound Irradiation ◽  
Bony Plate

Alternative Bone Expansion Technique for Implant Placement in Atrophic Edentulous Maxilla and Mandible

2011 ◽  
Vol 37 (4) ◽  
pp. 463-471 ◽  
Author(s):  
Neophytos Demetriades ◽  
Jong il Park ◽  
Constantinos Laskarides
Keyword(s):  
Autogenous Bone ◽  
Bone Augmentation ◽  
Success Rates ◽  
Implant Placement ◽  
Alveolar Crest ◽  
Atrophic Maxilla ◽  
Bone Expansion ◽  
Endosseous Implant ◽  
Bony Plate ◽  
Maxilla And Mandible

Abstract This clinical review is an evaluation of the effectiveness of the split ridge bone augmentation technique performed in the atrophic maxilla and mandible with buccolingual bony defects. The osseointegration success of implant placement in the area of split ridge bone augmentation is assessed and compared to implant success rates indicated in the literature. This evaluation includes 15 patients who were treated with alveolar split ridge bone augmentation at Tufts University School of Dental Medicine. During initial consultation, all patients were diagnosed with a buccolingual bone dimension of 3–5 mm on the edentulous alveolar crest. This bony buccolingual dimension was inadequate for placement of implants of desirable width and correct angulation as dictated by the prosthetic requirements. Crestal split augmentation technique involved a surgical osteotomy that was followed by alveolar crest split and augmentation after buccolingual bony plate expansion, prior to implantation. Implants were placed either immediately or 3 weeks after the initial augmentation. No fixation was used to stabilize the buccal bony cortex after the completion of the augmentation. All patients were placed on periodic follow-ups for a 24-month period postoperatively. Implant success was determined with the use of Buser's Criteria. In total, 33 implants were placed in 15 patients. The overall success rate of osseointegration of the endosseous implants placed in the area of split ridge bone augmentation was found to be 97%. One patient presented with facial bone resorption and implant mobility 4 months after the surgery. The implant was removed and the area was reconstructed with autogenous bone graft and later implanted with an endosseous implant. Our results indicate that the split crest bone augmentation technique is a valid reconstructive procedure that can be used to augment the buccolingual alveolar defect prior to implant placement providing good bone foundation for placement of implants with desirable width in favorable angulation. In comparison to traditional bone grafts techniques, crestal split ridge bone augmentation enables placement of dental implants immediately or 3 weeks after augmentation and eradicates the possible morbidity of the donor sites.

scholarly journals Histological study on the healing of rat dental sockets after partial removal of the buccal bony plate.

1983 ◽  
Vol 25 (3) ◽  
pp. 202-213 ◽  
Author(s):  
Tetuo OKAMOTO ◽  
Ayrton ONOFRE DA SILVA
Keyword(s):  
Histological Study ◽  
Partial Removal ◽  
Bony Plate

scholarly journals Morphometric and Topographic Study of Foramen Ovale in Indian Skulls

2018 ◽  
Vol 5 (2) ◽  
pp. 75-84
Author(s):  
Suniti Raj Mishra ◽  
Sushobhana ◽  
Shailendra Singh ◽  
Raveena Singh ◽  
Anamika Gaharwar
Keyword(s):  
Sexual Dimorphism ◽  
Bilateral Symmetry ◽  
Zygomatic Arch ◽  
Foramen Ovale ◽  
Bony Structure ◽  
Significant Difference ◽  
Bony Plate ◽  
The Mean ◽  
Human Skulls ◽  
Anterior Root

Foramen ovale is an important foramen for neurosurgeons and used for percutaneous trigeminal rhizotomy in trigeminal neuralgia. The present study was undertaken to study anatomic variations in appearance, dimensions of foramen ovale and its location in relation to the zygomatic arch. The study was conducted on 50 dry human skulls of known sex, available in the museum of Anatomy Dept. in G.S.V.M. Medical College, Kanpur.  The shape of foramen ovale and presence of any accessory bony structure like spur, spine, tubercle or bony plate were observed on both sides. The length and width of foramen ovale and its distance from articular tubercle and the anterior root of  Zygomatic Arch was  measured on both sides.  The metric data was statistically analysed for bilateral symmetry and sexual dimorphism. The shape of foramen ovale was typically oval in most of the skulls (66%). In 40% sides any accessory bony structure was not seen while bony plate in 45% sides, spine in 6% and bridge like bony septa dividing the foramen into two compartments in 2% was observed. The mean length and width of foramen ovale in male skulls was 7.50+/-0.90 mm and 4.20+/-0.70 mm and 7.7+/-1.00 mm and 3.9+/-0.80 mm in the female skulls.  The mean distance of foramen ovale from articular tubercle on Zygomatic arch was 32.8 +/- 2.8 mm in males and 31.1 +/- 2.4 mm in females. The mean distance from anterior root of Zygomatic arch was 21.4 +/- 1.9 mm in males and 21.6 +/- 1.7 mm in females. There was no significant difference in measurements of various metric parameters between right and left sides of foramen ovale (p>0.05) but highly significant difference was observed between male and female dimensions of all metric parameters.(p<0.001). Thus the foramen ovale does not exhibit bilateral symmetry but the sexual dimorphism is evident. The data is helpful for surgical practices.  

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