Diss. (sammanfattning) Uppsala : Univ., 2003. / Härtill 4 uppsatser.

Thesis (M.D.S.)--University of Adelaide, 1987. / Typescript. Includes bibliographical references (leaves 131-167).

Thesis (M.Sc.) -- Dept. of Anatomy and Histology, University of Adelaide, 1974. / Six articles published by author bound in at back of book.

Thesis (M.S.)--University of Michigan, 1985.

Thesis (M.S.)--University of Michigan, 1985.

Thesis (M.Orth.)--University of Hong Kong, 2002. / Includes bibliographical references (leaves 74-95). Also available in print.

Tese (livre-docencia) - Universidade Estadual de Campinas, Faculdade de Odontologia de Piracicaba / Made available in DSpace on 2018-07-28T07:12:18Z (GMT). No. of bitstreams: 1 HaiterNeto_Francisco_LD.pdf: 4159223 bytes, checksum: 1ea6d034178d69baa5934fb561e9d54d (MD5) Previous issue date: 2000 / Resumo: O propósito deste trabalho foi estudar o relacionamento entre o posicionamento do côndilo na fossa mandibular, a excursão condilar em boca aberta e o posicionamento do disco articular nas amostras sintomáticas e assintomáticas. A correlação do exame clínico com os achados nos exames por ressonância magnética. A presença da banda inferior da zona bilaminar também foi estuda. A amostra foi composta por 40 voluntários assintomáticos e 37 pacientes portadores de sintomatologia de deslocamento de disco com redução. Os resultados mostraram que o posicionamento do côndilo em boca fechada e a excursão condilar em boca aberta não podem ser usados sozinho no diagnóstico das disfunções temporomandibulares. As imagens coronais obtidas pelo novo modo de planejamento proporcionou uma melhor visualização do disco articular, principalmente no pólo lateral. Quanto ao disco articular, o mesmo estava em posição normal bilateralmente em 82,5% dos voluntários assintomáticos e estava deslocado bilateralmente em 62,2% dos pacientes sintomáticos. 58,3% das ATMs contra-laterais assintomáticas eram portadoras de deslocamento de disco. O exame clínico mostrou ser uma ferramenta útil somente quando aplicado para o diagnóstico de ATMs normais. Quando aplicado no diagnóstico de desordens internas, uma grande quantidade de diagnóstico falso-positivo foi encontrada / Abstract: The purpose of this work was study the relationship among the positioning of the condyle in the mandibular fossa, the condylar translation and disk position in the symptomatic and asymptomatic groups. The correlation of the clinical exam with the magnetic resonance imaging was studied. The visualization of the inferior band of the bilaminar zone also was studied. The sample was composed by 40 asymptomatic volunteers and 37 patient with disk displacement with reduction. The results showed that the position of the condyle in close mouth and the condylar translation cannot be used alone in the diagnosis of the temporomandibular disorders. The new coronal oblique images provided a better visualization of the disk, mainly in the lateral pole. The disk was viewed bilaterally in normal position in 82,5% of the asymptomatic volunteers and it was displacement bilaterally in 62,2% of the symptomatic patients. 58,3% of the contralateral asymptomatic TMJs were disk displacement. The clinical examination showed to be only useful when applied for diagnosis of normal TMJs. When applied for diagnosis of internal displacement, a great amount of false-positive diagnosis was found / Tese (livre-docencia) - Univer / Livre Docente em Radiologia Odontologica

Made available in DSpace on 2014-06-12T22:59:19Z (GMT). No. of bitstreams: 2 arquivo8474_1.pdf: 819248 bytes, checksum: 51eee86f1d4644d9302a4fbd10612a45 (MD5) license.txt: 1748 bytes, checksum: 8a4605be74aa9ea9d79846c1fba20a33 (MD5) Previous issue date: 2002 / O forame mandibular é uma estrutura de relevância e referência na face interna do ramo da mandíbula, tanto para as técnicas anestésicas em odontologia, quanto para as técnicas cirúrgicas de osteotomia do ramo. O objetivo do presente estudo foi localizar o forame mandibular relacionando os gêneros e os lados direito e esquerdo, utilizando medidas no sentido horizontal e vertical, foram utilizadas neste estudo 193 mandíbulas maceradas. Foram determinados pontos nas concavidades das bordas anterior do ramo (linha oblíqua interna), posterior, inferior e superior (incisura mandibular), além do ponto gônio e o ponto no centro do forame mandibular. Para realizar as mensurações foi utilizado um paquímetro digital com precisão de centésimo de milímetro. Os espécimes foram separados em três grupos: masculino, feminino e total dos espécimes. Os resultados revelaram que o forame mandibular no sentido horizontal encontrava-se mais próximo da borda anterior nos três grupos apenas no lado direito, enquanto no lado esquerdo foi localizado mais próximo da borda posterior. No sentido vertical o forame foi encontrado mais próximo da incisura mandibular (P= 0,001). A largura do forame foi maior no gênero masculino (P =0,013, lado direito; P=0,001, lado esquerdo) ocorrendo o mesmo para a distância entre o forame e ponto gônio (P=0,001, para ambos os lados). Os achados do presente estudo sugerem que a metodologia para análise da localização do forame mandibular deveria ser uniforme

Magister Scientiae Dentium - MSc(Dent) / Aim: The aim of the study was to compare immediate and delayed surgical management of septic mandibular fractures. Introduction: Infected mandible fractures can be treated via diverse protocols. Two recognized protocols are the so-called delayed approached and the immediate approach. In the delayed approach, sepsis is resolved first, followed by surgery. With the immediate approach, the sepsis is first drained, followed by open reduction and internal fixation of the jaw fracture in one continuous surgical procedure. Material and methods: 20 clinical cases where included in the study. Patients were randomly selected and assigned to the two treatment protocol groups. Pain, vital signs, fracture union, fracture stability, surgical time, hospital time, follow-up visits and patients’ demographics were recorded. Results: No statistically significant findings were made in the analysis of the demographic data and clinical parameters relating to the sepsis. The only significant data were related to the surgical time and hospital time. It was found that the advantages of the immediate approach versus the delayed approach related only to shorter surgical time and less days spent in hospital for the immediate approach. Conclusion: Septic mandibular fractures can be managed either by an immediate or a delayed approach. The immediate surgical approach seems to have an advantage over the delayed approach regarding the surgical time and hospital admission days.

Honeybee queens produce a number of pheromones that influence the behaviour and physiology of worker bees. The mandibular gland secretion of queens, the major pheromone source, suppresses the formation of emergency queen cells, worker reproduction and coordinates the social organisation of the colony. A study of analytical procedures for honeybee queen mandibular gland pheromone was undertaken, with the aim of doing multiple analyses of the same individual over a period of time. Attention was given to developing new non-destructive sampling methods that would help to characterize signal changes. This study involves the characterisation of non-destructive sampling devices that are highly selective and sensitive towards extraction of mandibular pheromone. Two polymer based sampling techniques, solid phase micro extraction and silicone rubber tubing, compatible with gas chromatography were studied. A solvent extract, of mandibular pheromone was analysed by gas chromatography (GC) and employed as a tested reference method for the two newly developed techniques. Direct sampling with solid phase micro extraction fibres at the glandular openings at the base of the mandibles is a non-destructive method that met our objectives. Mandibular gland secretions from living honeybee queens were sampled with polar and non-polar fibres. Non-polar fibres were saturated with Bis(trimethylsilyl)triflouroacetamide (BSTFA) prior to mandibular pheromone extraction. Treatment of the polymer devices with derivatising agent enhances extraction of polar components of the mandibular pheromone. BSTFA saturated non-polar fibres with a low-polarity column gave consistent results compared to polar fibres with a mid-polar column. The results confirmed that the solid phase micro extraction technique is a sensitive and non-destructive method that can ideally be used to analyse insect secretions particularly in tracking temporal changes in the secretion composition during an individual’s life. Silicone rubber tubing consisting of polydimethylsiloxane was explored as an alternative sampling technique for pheromones from living individuals. Prepared One cm long silicone rubber tubing was saturated with BSTFA prior to mandibular pheromone extraction to enhance extraction of polar components. Preliminary studies done on mandibular pheromone standards sampled with this method showed promising results. However, queen mandibular secretion analyses were characterized by low recovery of pheromonal compounds. The new polymer based techniques that we employed isolated the mandibular pheromones from living honeybee queens directly from the mandibles. The pheromonal components of the mandibular gland secretion were successfully analysed. Copyright / Dissertation (MSc)--University of Pretoria, 2009. / Chemistry / unrestricted