Consulta: subjectFacets:"Maxilla"
Registros recuperados: 12
Data/hora: 01/06/2024 10:40:42

Craniometric Study of Nasal Bones and Frontal Processes of Maxilla
Provedor de dados: 77
Autores: Costa,Jecilene Rosana; Prates,José Carlos; de Castilho,Helton Traber; Santos,Rafael de Almeida.
Knowing the anatomy of the nasal framework and its components, as well as their relations of size and shape is essential to correctly and safely perform nasal surgery, such as rhinoplasty. Symmetry and proportion of nasal bones and frontal processes of the maxilla related to patient's skull shape is not yet well established. Variation of these proportions due to differences in skull shape may interfere in the results of rhinoplasty, leading to poor aesthetic results and postoperative complications. This paper's objective is to measure and evaluate differences in shape and size of bony components of nasal framework (nasal bones and frontal process of maxilla) among different classes of skull shape. 121 skulls from UNIFESP-EPM Anatomy Museum, filed with...
Tipo: Journal article
Palavras-chave: Craniometry; Rhinoplasty; Nasal bone; Maxilla; Craniometry; Rhinoplasty; Nasal bone; Maxilla.
Ano: 2005
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022005000100002

Anthropometric Measurements in Toothed and Toothless Maxillaries and its Consequences in Human Alveolar Bone Resorption
Provedor de dados: 77
Autores: de Oliveira,Jaciel Benedito; Almeida,Andrelle Nayara Cavalcanti Lima de; Lins,Carla Cabral dos Santos Accioly; Júnior,Adelmar Afonso de Amorim; Seixas,Zélia Albuquerque.
This study proposes to measure and compare anthropometric measurements between toothed and toothless maxillas. 26 human skulls were used with: 13 toothed and 13 toothless maxillas. The measurements were made between the distances of the alveolar ridge (AR): the anterior nasal spine (ANS), to the incisive foramen (FI) and the palatine foramen, greater (FPMA) and lower (FPME) on both sides by two evaluators. The data obtained showed that the average of the measurements were correspondingly higher in toothed maxillas than in toothless, for all measurements in any one of the evaluators. The AR-ANS (p = 0.001), IF-AR (p = 0.006), AR-FPMA right (p = 0.001) and AR-FPMA left (p &lt;0.001) and AR-FPME on both sides (p = 0.001) demonstrating significant differences...
Tipo: Journal article
Palavras-chave: Anatomy; Maxilla; Total prosthesis; Alveolar bone loss; Dental implantation.
Ano: 2012
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022012000300064

Calcium Levels in the Maxillae of Human Foetuses
Provedor de dados: 77
Autores: Farah,Ghaus; Faruqi,N. A; Khan,H. S; Kirmani,F.
Calcium along with phosphorus and carbonate imparts hardness and strength to skeletal system. Most of the human studies in this context are based on informations in postnatal life. There are different theories to explain the manner in which the matrix of bone becomes impregnated with the two inorganic salts, calcium phosphate and calcium carbonate. In our study, 29 human foetuses were obtained from the museum section of Department of Anatomy, J .N. Medical College, Aligarh, and divided into five groups. Maxillae were cleaned by separating the soft tissue and dissolved in concentrated nitric acid to determine calcium. Results were analysed by using Student's 't' test. The most striking feature of our findings was a reduction in aforementioned relative...
Tipo: Journal article
Palavras-chave: Calcium; Foetus; Maxilla; Development; Facial Skeleton.
Ano: 2011
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022011000100044

Bone Healing in Transverse Maxillary Defects with Different Surgical Procedures Using Anorganic Bovine Bone in Humans
Provedor de dados: 77
Autores: Beltrán,Victor; Matthijs,Andries; Borie,Eduardo; Fuentes,Ramón; Valdivia-Gandur,Iván; Engelke,Wilfried.
The centripetal resorption of maxilla is a continuous process after tooth loss. For treatment of deficient bone sites, autologous bone grafts may be used, as an alternative, biomaterials can be applied which do not require intra- or extraoral donor sites. The present report we describe the use of anorganic bovine bone (ABB) based on three case reports under different modes: Membrane, rigid barrier and connective tissue graft. Clinical results show that under all conditions, sufficient hard tissue was formed to allow implant born rehabilitation in the former insufficient bone sites. Histologic evaluation revealed trabecular bone in an almost mature matrix with resting particles of ABB. Depending on the original site situation, two step rigid occlusive...
Tipo: Journal article
Palavras-chave: Bone regeneration; Maxilla; Dental implant; Bone defect; Biomaterials.
Ano: 2013
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022013000100011

Bone Augmentation With Occlusive Barriers and Cortical Particulate Allograft in Transverse Maxillary Defects: A Pilot Study
Provedor de dados: 77
Autores: Beltrán,Víctor; Engelke,Wilfried; Fuentes,Ramón; Decco,Oscar; Prieto,Ruth; Wilckens,Mario; Borie,Eduardo.
The centripetal resorption of maxilla is a continuous process after tooth loss. For treatment of deficient bone sites, autologous bone grafts may be used, as an alternative, biomaterials can be applied which do not require intra or extraoral donor sites. The present report describes the use of occlusive barriers and cortical particulate allograft in transverse maxillary defects. This surgical approach was performed in five patients (4 females and 1 male, aged 20 to 37 years). Clinical results show that sufficient hard tissue was formed to allow implant born rehabilitation in the former insufficient bone sites. Histological evaluation revealed small amounts of newly formed bone with a predominance of collagen fibrous tissue and mature bone with very little...
Tipo: Journal article
Palavras-chave: Bone regeneration; Maxilla; Dental implant; Bone defect; Biomaterials.
Ano: 2014
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022014000100057

Morphometric Analysis of Infraorbital Foramen and Infraorbital Canal in Human Feotuses
Provedor de dados: 77
Autores: Farah,Ghaus; Faruqi,N. A.
Literature regarding analysis of infraorbital foramen and canal exists in adult but it is scanty in foetuses.Morphometric measurements were performed in sixty maxillae dissected out from thirty human foetuses.The latter were divided into five groups on the basis of age i.e. groups I(&amp;lt;17 weeks IUL),II (17-20 weeks IUL), III (21-25 weeks IUL),IV (26-30 weeks IUL) and V (&gt;30 weeks IUL).Four parameters considered were length of infraorbital foramen and canal and width of anterior and posterior ends of infraorbital foramen. Range of measurements between the smallest foetal group to largest foetal group for length of infraorbital foramen and canal and width at the anterior and posterior ends of infraorbital foramen were 4.01mm to 6.00 mm,0.67 mm to...
Tipo: Journal article
Palavras-chave: Infraorbital foramen; Infraorbital canal; Human foetuses; Morphology; Maxilla.
Ano: 2008
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022008000200007

Morphometric Analysis of Infraorbital Foramen in Human Foetuses
Provedor de dados: 77
Autores: Farah,Ghaus; Faruqi,N. A.
A detailed knowledge of the anatomic morphometry of infraorbital groove, canal and foramen was necessary for a surgeon while performing maxillofacial surgery and regional block anaesthesia. Modern surgical procedures as well as anaesthesia require more precise understanding of the surrounding anatomy. The aim of the study was to establish morphometrically the infraorbital foramen size and location in human foetuses, the area where this information was scanty. Sixty maxillae were dissected out from thirty human foetuses. The latter were divided into five groups on the basis of age i.e. groups I(&lt;17 weeks IUL),II (17-20 weeks IUL), III (21-25 weeks IUL),IV (26-30 weeks IUL) and V (&gt;30 weeks IUL). Four parameters including transverse diameter and...
Tipo: Journal article
Palavras-chave: Infraorbital foramen; Morphometry; Human foetuses; Maxilla; Development.
Ano: 2007
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022007000200009

A Comparison of Anatomical Measurements of the Infraorbital Foramen of Skulls of the Modern and Late Byzantine Periods and the Golden Ratio
Provedor de dados: 77
Autores: Bakirci,S; Kafa,I. M; Coskun,I; Buyukuysal,M. C; Barut,C.
The aim of this study was to examine the morphometric characteristics of the infraorbital foramen of skulls of people living in modern society and in the late Byzantine period, to ascertain the symmetry or asymmetry of the two halves of the skulls by measuring the linear distance between various landmarks, to evaluate at the conformity between the infraorbital foramen and the golden ratio by calculating the ratios between these linear distances, and to set out the differences or similarities between the skulls of these different periods. It was found in the study that the morphometric characteristics of the infraorbital foramen in skulls of the modern period were 47.05 % circular, 41.17 % oval and 11.76 % atypical (semilunar and triangular) on the right,...
Tipo: Journal article
Palavras-chave: Infraorbital foramen; Golden ratio; Byzantine period; Asymmetry; Maxilla.
Ano: 2016
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022016000200057

Clinical Anatomy of the Head Region of the Black Bengal Goat in Bangladesh
Provedor de dados: 77
Autores: Uddin,Mohammad Mejbah; Ahmed,Syed Sayeem Uddin; Islam,Kh. Nurul; Islam,Md. Mominul.
The study involved the measurements of some clinically important landmarks for regional anesthesia in the maxillary and mandibular regions of head of fifty Black Bengal (BB) goats. The distance from facial tuberosity to the infra-orbital canal and from the latter to the root of the alveolar tooth directly ventral to it were 1.85 cm and 1.75 cm respectively. Both the distances from facial tuberosity to infra-orbital canal and from infra-orbital canal to the root of the alveolar tooth are of clinical important even in live animal as a guide for tracking infra-orbital nerve because of facial tuberosity. The distance between the lateral end of the alveolus of the incisor tooth to the mental foramen was 2.11 cm and are from the mental foramen to the caudal...
Tipo: Journal article
Palavras-chave: Mandible; Maxilla; Regional Anesthesia; Goat.
Ano: 2009
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022009000400048

Expression of non-neuronal cholinergic system in maxilla of rat in vivo
Provedor de dados: 48
Autores: Guo,Jie; Wang,Lue; Xu,Haihua; Che,Xiaoxia.
BACKGROUND: Acetylcholine (ACh) is known to be a key neurotransmitter in the central and peripheral nervous systems, which is also produced in a variety of non-neuronal tissues and cell. The existence of ACh in maxilla in vivo and potential regulation role for osteogenesis need further study. RESULTS: Components of the cholinergic system (ACh, esterase, choline acetyltransferase, high-affinity choline uptake, n- and mAChRs) were determined in maxilla of rat in vivo, by means of Real-Time PCR and immunohistochemistry. Results showed RNA for CarAT, carnitine/acylcarnitine translocase member 20 (Slc25a20), VAChT, OCTN2, OCT1, OCT3, organic cation transporter member 4 (Slc22a4), AChE, BChE, nAChR subunits &amp;#945;1, &amp;#945;2, &amp;#945;3, &amp;#945;5,...
Tipo: Journal article
Palavras-chave: Non-neuronal cholinergic system; Maxilla; Real-Time PCR; Immunohistochemistry.
Ano: 2014
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602014000100066

Effect of triiodothyronine on the maxilla and masseter muscles of the rat stomatognathic system
Provedor de dados: 56
Autores: Mariúba,M.V.; Goulart-Silva,F.; Bordin,S.; Nunes,M.T.
The maxilla and masseter muscles are components of the stomatognathic system involved in chewing, which is frequently affected by physical forces such as gravity, and by dental, orthodontic and orthopedic procedures. Thyroid hormones (TH) are known to regulate the expression of genes that control bone mass and the oxidative properties of muscles; however, little is known about the effects of TH on the stomatognathic system. This study investigated this issue by evaluating: i) osteoprotegerin (OPG) and osteopontine (OPN) mRNA expression in the maxilla and ii) myoglobin (Mb) mRNA and protein expression, as well as fiber composition of the masseter. Male Wistar rats (~250 g) were divided into thyroidectomized (Tx) and sham-operated (SO) groups (N = 24/group)...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Triiodothyronine; Osteopontine; Osteoprotegerin; Masseter muscle; Maxilla.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2011000700013

Microbiota associated with chronic osteomyelitis of the jaws
Provedor de dados: 58
Autores: Gaetti-Jardim Júnior,Elerson; Fardin,Angélica Cristiane; Gaetti-Jardim,Ellen Cristina; Castro,Alvimar Lima de; Schweitzer,Christiane Marie; Avila-Campos,Mario Julio.
Chronic osteomyelitis of maxilla and mandible is rare in industrialized countries and its occurrence in developing countries is associated with trauma and surgery, and its microbial etiology has not been studied thoroughly. The aim of this investigation was to evaluate the microbiota associated with osteomyelitis of mandible or maxilla from some Brazilian patients. After clinical and radiographic evaluation, samples of bone sequestra, purulent secretion, and biopsies of granulomatous tissues from twenty-two patients with chronic osteomyelitis of mandible and maxilla were cultivated and submitted for pathogen detection by using a PCR method. Each patient harbored a single lesion. Bacterial isolation was performed on fastidious anaerobe agar supplemented...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Osteomyelitis; Bacteria; Anaerobes; Maxilla; Mandible.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822010000400025