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Assessment of Position of Mandibular and Genial Foramen in North Indian
Rathi S et al. Position of Mandibular and Genial Foramen. Journal of Advanced Medical and Dental Sciences Research @Society of Scientific Research and Studies Journal home page: www.jamdsr.comdoi: 10.21276/jamdsr (e) ISSN Online: 2321-9599; (p) ISSN Print: 2348-6805 Original Article Assessment of Position of Mandibu lar and Genial Foramen in North Indian Human Mandibles Sunita Rathi, Kumar Vaibhaw 1Assistant Professor, Department Of Anatomy, 2Assistant Professor, Department Of Pathology, Rama Medical College Hospital & Research Centre, Hapur, U.P. ABSTRACT: Introduction: The mandibular foramen is a prominent foramen and its knowledge is of paramount importance during dental procedures of lower jaw. Most common of the accessory foramina are the foramina present on the internal aspect of the bone. They are named as lingual foramina if the foramina are present in the midline, superior, or within the genial tubercle. The present study was undertaken to examine the incidence of the Mandibular Foramen and lingual (genial) foramen and their morphological variants by examining adult north Indian human mandibles from anthropology museum. Material and Methods: The present study was carried on 500 adult north Indian human mandibles from anthropology museum,. They were carefully examined and the incidence of the Mandibular Foramen and lingual (genial) foramen and their morphological variants was observed and noted after visual examination. Data obtained was studied and tabulated. Results: The position of mandibular foramen was more common below the midpoint, 451 cases (90.2%) while it was less common at the midpoint, 49 (9.8%) cases. In none of the mandibles examined, the position of the mandibular foramen was found above the midpoint. -
The Appearance of Foramen in the Internal Aspect of the Mental
Okajimas Folia Anat. Jpn., 82(3): 83–88, November, 2005 The Appearance of Foramen in the Internal Aspect of the Mental Region of Mandible from Japanese Cadavers and Dry Skulls Under Macroscopic Observation and Three-dimensional CT Images By Shunji YOSHIDA1),TaisukeKAWAI2),KoichiroOKUTSU2), Takashi YOSUE2), Hitoshi TAKAMORI3), Masataka SUNOHARA and Iwao SATO1) 1Department of Anatomy, 2Department of Oral and Maxillofacial Radiology School of Dentistry at Tokyo, 3Oral Implant Clinic, Nippon Dental University at Tokyo, Tokyo, Japan – Received for Publication, June 28, 2005 – Key Words: Lingual foramen, CT, Mandible Summary: The lingual canal with foramen displays different appearances on the internal surfaces of mandible as con- firmed by macroscopic observation and computerized tomography (CT). The lingual canal was observed in the inside of mental region run to the outside of lingual foramen, which is extend internally from mandibular canal in right and left sides of the mandible in cadavers (13 sides out of 88 sides) and in dry skulls (43 out of 94 sides) examined. The spinal foramen connected with mental canal occurred at the midline of mandible in 6 cases (6 out of 47 cases) in dry skulls. In this small foramen, the inferior alveolar artery give some branches to the inside of mental region at the anterior man- dible and which may be run pass through the lingual canal to the lingual foramen, where they emerge to enter the mylohyoid or anterior belly of digastric muscles. The observations of these are important considerations for surgical placement of dental implants in the region in the mandible. The anatomical location, course and arrange- treatments. -
Mechanics in the Production of Mandibular Technique. I
Mechanics in the Production of Mandibular Fractures: A Study with the "Stresscoat' Technique. I. Symphyseal Impacts DONALD F. HUELKE Department of Anatomy, University of Michigan Medical School Ann Arbor, Michigan A recent study of 319 case histories of mandibular fractures by Hagan and Huelke' has shown that certain areas of the jaw are fractured more often than others and that the incidence of certain mandibular fractures is greater when the blow is directed to specific regions of the jaw. Relatively little is known about the response of the mandi- ble to impact, except that, when the magnitude of a blow is sufficient, the bone will break. How does the mandible fracture, and what are the mechanisms involved? These questions have not been answered because of the lack of experimental data. Obtaining these data is an engineering problem involving stresses, strains, impacts, energies, and forces, and thus engineering techniques must be used. This report, the first of a series of studies on the mechanism of mandibular frac- tures, presents data on forces and impacts applied to the chin point of the mandible and the resultant deformations of the bone. The results of these tests are correlated with certain clinical findings. Terminology.-Throughout this report certain terminology generally used in engi- neering will be employed. Some of these terms need to be defined. The term force is defined as a push or pull. The various types of force are illustrated in Figure 1. Ten- sile forces (tension) tend to pull an object apart; compressive forces (compression) push the particles forming an object together, while shearing forces make one part of an object slide over another part of the same object. -
Nasal Morphology and Its Correlation to Craniofacial Morphology in Lateral Cephalometric Analysis
International Journal of Environmental Research and Public Health Article Nasal Morphology and Its Correlation to Craniofacial Morphology in Lateral Cephalometric Analysis Agnieszka Jankowska 1 , Joanna Janiszewska-Olszowska 2,* and Katarzyna Grocholewicz 2 1 Private Practice “Dental Clinic Jankowscy”, 68-200 Zary,˙ Poland; [email protected] 2 Department of Interdisciplinary Dentistry, Pomeranian Medical University in Szczecin, 70-111 Szczecin, Poland; [email protected] * Correspondence: [email protected]; Tel.: +48-91-466-1690 Abstract: Nose shape, size, and inclination influence facial appearance, but few studies concern the relationship between the nasal profile and craniofacial structures. The objective of this study was to analyze association of nasal cephalometric variables with skeletal structures, age, and sex. Cephalometric and nasal analysis was performed in 386 Polish orthodontic patients (aged 9–25 years). Student t-test and Mann–Whitney test were used to compare quantitative variables and Pearson’s or Spearman’s correlation coefficients—to find correlations. Soft tissue facial convexity angle corre- lates to Holdaway ratio, ANB (A-Nasion-B), and Wits appraisal. Nasal dorsum axis, nose length, nose depth (1) and nose depth (2), nose hump, lower dorsum convexity, and columella convexity increase with age. Nasal base angle, nasolabial angle, nasomental angle, soft tissue facial convex- ity and nasal bone angle decrease with age. Nasal base angle and nasomental angle are smaller in females. Thus, a relationship exists between nasal morphology and sagittal jaw configuration. Nasal parameters significantly change with age. Sexual dimorphism characterizes nasal bone angle Citation: Jankowska, A.; and nasomental angle. Janiszewska-Olszowska, J.; Grocholewicz, K. Nasal Morphology Keywords: nose; nose profile; cephalometry; orthodontics and Its Correlation to Craniofacial Morphology in Lateral Cephalometric Analysis. -
Study of Wormian Bones on Dry Human Skull and Its Sexual Dimorphism in the Region of Andhra Pradesh
Original Research Article Study of Wormian Bones on Dry human skull and its sexual dimorphism in the region of Andhra Pradesh Shone Vasudeo Durge Assistant Professor, Dept. of Anatomy, Fathima Institute of Medical Sciences, Ramarajupalli, Andhra Pradesh Corresponding Author: E-mail: [email protected] Abstract This study was aimed at identifying the wormian bone and their overall incidence in respect to their number and location in the region of Andhra Pradesh. Overall incidence of wormian bones was more in female (47.72%) than in male skulls (41.66%). They occurred more frequently at lambdoid suture (38%). Wormian bones along the coronal suture, Bregma and Asterion were seen only in male skulls, while intra-orbital wormian bones and wormian bones at Pterion were seen only in female skulls. This study concludes by stating that, there exists a moderate degree of sexual dimorphism among the wormian bones with respect to overall incidence, number and location. Keywords- Skull, Sexual dimorphism, Wormian bones, Lambda, Asterion. Background knowledge of WBs is important in the diagnosis of Wormian bones, also known as intra-sutural bones, these disorders (Cremin, Goodman, Spranger et al., are extra bone pieces that occur within a suture in the 1982). It was reported that their incidence is well suited cranium. These are irregular isolated bones that appear for comparative studies as an anthropological marker or in addition to the usual centers of ossification of the an indicator of population distance (Gumusburun, cranium and, although unusual, are not rare. They occur Sevim, Katkici et al., 1997). Their knowledge is of most frequently in the course of the lambdoid suture, interest to the human anatomy, physical anthropology which is more tortuous than other sutures. -
Morfofunctional Structure of the Skull
N.L. Svintsytska V.H. Hryn Morfofunctional structure of the skull Study guide Poltava 2016 Ministry of Public Health of Ukraine Public Institution «Central Methodological Office for Higher Medical Education of MPH of Ukraine» Higher State Educational Establishment of Ukraine «Ukranian Medical Stomatological Academy» N.L. Svintsytska, V.H. Hryn Morfofunctional structure of the skull Study guide Poltava 2016 2 LBC 28.706 UDC 611.714/716 S 24 «Recommended by the Ministry of Health of Ukraine as textbook for English- speaking students of higher educational institutions of the MPH of Ukraine» (minutes of the meeting of the Commission for the organization of training and methodical literature for the persons enrolled in higher medical (pharmaceutical) educational establishments of postgraduate education MPH of Ukraine, from 02.06.2016 №2). Letter of the MPH of Ukraine of 11.07.2016 № 08.01-30/17321 Composed by: N.L. Svintsytska, Associate Professor at the Department of Human Anatomy of Higher State Educational Establishment of Ukraine «Ukrainian Medical Stomatological Academy», PhD in Medicine, Associate Professor V.H. Hryn, Associate Professor at the Department of Human Anatomy of Higher State Educational Establishment of Ukraine «Ukrainian Medical Stomatological Academy», PhD in Medicine, Associate Professor This textbook is intended for undergraduate, postgraduate students and continuing education of health care professionals in a variety of clinical disciplines (medicine, pediatrics, dentistry) as it includes the basic concepts of human anatomy of the skull in adults and newborns. Rewiewed by: O.M. Slobodian, Head of the Department of Anatomy, Topographic Anatomy and Operative Surgery of Higher State Educational Establishment of Ukraine «Bukovinian State Medical University», Doctor of Medical Sciences, Professor M.V. -
Morphology of the Pterion in Serbian Population
Int. J. Morphol., 38(4):820-824, 2020. Morphology of the Pterion in Serbian Population Morfología del Pterion en Población Serbia Knezi Nikola1; Stojsic Dzunja Ljubica1; Adjic Ivan2; Maric Dusica1 & Pupovac Nikolina4 KNEZI, N.; STOJSIC, D. L.; ADJIC, I.; MARIC, D. & PUPOVAC, N. Morphology of the pterion in Serbian population. Int. J. Morphol., 38(4):820-824, 2020. SUMMARY: The pterion is a topographic point on the lateral aspect of the skull where frontal, sphenoid, parietal and temporal bones form the H or K shaped suture. This is an important surgical point for the lesions in anterior and middle cranial fossa. This study was performed on 50 dry skulls from Serbian adult individuals from Department of Anatomy, Faculty of Medicine in Novi Sad. The type of the pterion on both sides of each skull was determined and they are calcified in four types (sphenoparietal, frontotemporal, stellate and epipteric). The distance between the center of the pterion and defined anthropological landmarks were measured using the ImageJ software. Sphenoparietal type is predominant with 86 % in right side and 88 % in left side. In male skulls, the distance from the right pterion to the frontozygomatic suture is 39.89±3.85 mm and 39.67±4.61 mm from the left pterion to the frontozygomatic suture. In female skulls the distance is 37.38±6.38 mm on the right and 35.94±6.46 mm on the left. The shape and the localization of the pterion are important because it is an anatomical landmark and should be used in neurosurgery, traumatology and ophthalmology. -
Original Article Anatomic Study of the Lacrimal Fossa and Lacrimal Pathway
Original Article Anatomic study of the lacrimal fossa and lacrimal pathway for bypass surgery with autogenous tissue grafting Hai Tao, Zhi‑zhong Ma1, Hai‑Yang Wu, Peng Wang, Cui Han Purpose: To study the microsurgical anatomy of the lacrimal drainage system and to provide anatomical Access this article online evidence for transnasal endoscopic lacrimal drainage system bypass surgery by autogenous tissue grafting. Website: Materials and Methods: A total of 20 Chinese adult cadaveric heads in 10% formaldehyde, comprising www.ijo.in 40 lacrimal ducts were used. The middle third section of the specimens were examined for the following DOI: features: the thickness of the lacrimal fossa at the anterior lacrimal crest, vertical middle line, and posterior 10.4103/0301-4738.121137 lacrimal crest; the cross section of the upper opening, middle part, and lower opening of the nasolacrimal PMID: canal; the horizontal, 30° oblique, and 45° oblique distances from the lacrimal caruncle to the nasal cavity; ***** the distance from the lacrimal caruncle to the upper opening of the nasolacrimal duct; and the included Quick Response Code: angle between the lacrimal caruncle–nasolacrimal duct upper opening junction and Aeby’s plane. Results: The middle third of the anterior lacrimal crest was significantly thicker than the vertical middle line and the posterior lacrimal crest (P > 0.05). The horizontal distance, 30° oblique distance, and 45° oblique distance from the lacrimal caruncle to the nasal cavity exhibited no significant differences (P > 0.05). The included angle between the lacrimal caruncle and the lateral wall middle point of the superior opening line of the nasolacrimal duct and Aeby’s plane was average (49.9° ± 1.8°). -
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1 Contribution of dental private practitioners to 2 publications on anatomical variations using 3 cone beam computed tomography. 4 5 Authors: 6 Hebda A1,*MS, 7 Theys S2 DDS, 8 De Roissart J3 MD, 9 Perez E4 DDS, 10 Olszewski R1,3 DDS,MD,PhD,DrSc 11 Affiliations: 12 1 Oral and maxillofacial surgery research Lab, NMSK, IREC, SSS, UCLouvain, 13 Brussels, Belgium 14 2 Department of pediatric dentistry and special care, Cliniques universitaires saint 15 Luc, UCLouvain, Brussels, Belgium 16 3 Department of oral and maxillofacial surgery, Cliniques universitaires saint Luc, 17 UCLouvain, Brussels, Belgium 18 4 Department of orthodontics, Cliniques universitaires saint Luc, UCLouvain, 19 Brussels, Belgium 20 *Corresponding author: Hebda A, Oral and maxillofacial surgery research Lab, 21 NMSK, IREC, SSS, UCLouvain, Brussels, Belgium, ORCID Id 0000-0001-5111- 22 0021 1 2 [Nemesis] Titre de l’article (PUL - En- tête paire) 23 Disclaimer: the views expressed in the submitted article are our own and not an 24 official position of the institution or funder. 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 [Nemesis] Titre de l’article (PUL - En- tête impaire) 3 61 Abstract 62 Objective: To investigate the participation of citizens-dental private practitioner in 63 scientific articles about anatomical variations on dentomaxillofacial CBCT. Our null 64 hypothesis was that private practice practitioners are not involved in publications on 65 anatomical variations using cone beam computed tomography. -
Surgical Anatamic of Paranasal Sinuses
SURGICAL ANATAMIC OF PARANASAL SINUSES DR. SEEMA MONGA ASSOCIATE PROFESSOR DEPARTMENT OF ENT-HNS HIMSR MIDDLE TURBINATE 1. Anterior attachment : vertically oriented, sup to the lateral border of cribriform plate. 2. Second attachment :Obliquely oriented- basal lamella/ ground lamella, Attached to the lamina papyracea ( medial wall of orbit anterior, posterior air cells, sphenopala‐ tine foramen 3. Posterior attachment :medial wall of maxillary sinus, horizontally oriented. , supreme turbinate 3. Occasionally 4. fourth turbinate, 5. supreme meatus, if present 6. drains posterior ethmoid drains inferior, middle, superior turbinates and, occasionally, the supreme turbinate, the fourth turbinate. e. Lateral to these turbinates are the corresponding meatuses divided per their drainage systems ANATOMICAL VARIATIONS OF THE TURBINATES 1. Concha bullosa, 24–55%, often bilateral, 2. Interlamellar cell of grunwald: pneumatization is limited to the vertical part of middle turbinate, usually not causing narrowing of the ostiomeatal unit 3. Paradoxic middle turbinate: 26%,. Occasionally, it can affect the patency of the ostiomeatal unit 4. Pneumatized basal lamella, falsely considered, posterior ethmoid air cell Missed basal lamella – attaches to lateral maxillary sinus wall Ostiomeatal unit Anterior ostiomeatal unit, maxillary, anterior ethmoid, frontal sinuses, (1) ethmoid infundibulum, (2) middle meatus, (3) hiatus semilunaris, (4) maxillaryOstium, (5) ethmoid bulla, (6) frontal recess, (7) uncinate process. , sphenoethmoidal recess Other draining osteomeatal unit, posterior in the nasal cavity, posterior ethmoid sinus, lateral to the superior turbinate, . sphenoid Sinus medial to the superior turbinate Uncinate Process Crescent‐shaped, thin individual bone inferiorly- ethmoidal process of inferior turbinate, anterior, lacrimal bone, posteriorly- hiatus Semilunaris, medial -ethmoid infundibulum, laterally, middle meatus superior attachment- variability, direct effect on frontal sinus drainage pathway. -
CLOSURE of CRANIAL ARTICULATIONS in the SKULI1 of the AUSTRALIAN ABORIGINE by A
CLOSURE OF CRANIAL ARTICULATIONS IN THE SKULI1 OF THE AUSTRALIAN ABORIGINE By A. A. ABBIE, Department of Anatomy, University of Adelaide INTRODUCTION While it is well known that joint closure advances more or less progressively with age, there is still little certainty in matters of detail, mainly for lack of adequate series of documented skulls. In consequence, sundry beliefs have arisen which tend to confuse the issue. One view, now disposed of (see Martin, 1928), is that early suture closure indicates a lower or more primitive type of brain. A corollary, due to Broca (see Topinard, 1890), that the more the brain is exercised the more is suture closure postponed, is equally untenable. A very widespread belief is based on Gratiolet's statement (see Topinard, 1890; Frederic, 1906; Martin, 1928; Fenner, 1939; and others) that in 'lower' skulls the sutures are simple and commence to fuse from in front, while in 'higher' skulls the sutures are more complicated and tend to fuse from behind. This view was disproved by Ribbe (quoted from Frederic, 1906), who substituted the generalization that in dolicocephals synostosis begins in the coronal suture, and in brachycephals in the lambdoid suture. In addition to its purely anthropological interest the subject raises important biological considerations of brain-skull relationship, different foetalization in different ethnological groups (see Bolk, 1926; Weidenreich, 1941; Abbie, 1947), and so on. A survey of the literature reveals very little in the way of data on the age incidence of suture closure. The only substantial contribution accessible here comes from Todd & Lyon (1924) for Europeans, but their work is marred by arbitrary rejection of awkward material. -
A Description of Some Tasmanian Skulls
AUSTRALIAN MUSEUM SCIENTIFIC PUBLICATIONS Ramsay Smith, W., 1916. A description of some Tasmanian skulls. Records of the Australian Museum 11(2): 15–29, plates viii–xiii. [1 May 1916]. doi:10.3853/j.0067-1975.11.1916.907 ISSN 0067-1975 Published by the Australian Museum, Sydney naturenature cultureculture discover discover AustralianAustralian Museum Museum science science is is freely freely accessible accessible online online at at www.australianmuseum.net.au/publications/www.australianmuseum.net.au/publications/ 66 CollegeCollege Street,Street, SydneySydney NSWNSW 2010,2010, AustraliaAustralia A "!:lESGRIPTION OF SOME TASMANIAN SKULLS. By W. RAMSAY SMITH, M.D., D.Sc., F.R.S. (Edin.). (Plates viii-xiii.) I.-INTRODUCTION. III July, 1910, the Trustees of the Aust;>alian Museum, Sydney, were good enough to send me th,' Tasmanian skulls in their collection for the purpose;, 'If meaSl.rement and description. 1'he specimens consisted of two ~omp~ete skulls and the upper portion of a third. About the sa,me time I was fortunate III obtainillg a cast of a skull from the 1'asmaniall Museum, and also, from another source the skull and most of the bones of an aged Tasmanian woman that had not previously been described. 'I'hese specimens form the subject of the present contribution. To Mr. R. Etheridge, Curator of the Australian Museum, I am much indebted for assistance in sending the Museum skulls and giving their origin and history. These description~were writtell nearly five years ago; but the leisure for putting the necessary finishing touches for publication has been long delayed. 1'he sagittal contours (PI.