As ultrasound imaging gains popularity in speech research, an important question to address is the reliability of the measures taken from these images. This study examines the reliability of hand measures of ultrasound data collected by graduate student researchers in the University of South Florida's speech science lab. Speech production data from Ultrasound analysis of velar fronting (Wodzinski, 2004) and Ultrasound study of errors in speech production (Frisch, 2003) were used to obtain inter-rater reliability measures. This study compares the raters choice of video frame depicting alveolar or velar closure image, anterior and posterior points of closure, tongue blade and velar angle measurements, as well as a measurement of the tongue dorsum distance from the ultrasound probe.

Problem: Third molar removal in sagittal split osteotomies(SSOs) is recommended by some authors at least 6 months preoperatively to prevent unfavorable fractures. Others authors suggest concomitant removal. The purpose of this study was to investigate the effect of third molars during SSOs. Methods: A prospective study of 677 SSOs was conducted. GroupI consisted of 331 SSOs and third molar removal. GroupII consisted of 346 SSOs without third molar. Intraoperative and postoperative evaluations were recorded. Results: The overall rate of unfavorable fractures was 3.1%, with incidences of 2.4% in GroupI, compared to 3.8% in GroupII(P=0.3). The rate of IAN entrapment was lower in GroupI(37.2%) than in GroupII(46.5%;P=0.01). Third molars increased procedural time by 1.7 minutes. Neurosensory deficits were higher in GroupII. Conclusion: Removal of third molars during SSOs is not associated with increased incidence of unfavorable fractures. Their presence decreases IAN entrapment, improve neurosensory recovery, but slightly increases operating time.

<p>S. 1-50: sammanfattning, härtill 6 uppsatser.</p> / digitalisering@umu

Diss. (sammanfattning) Umeå : Univ., 2006. / Härtill 5 uppsatser.

Thesis (Ph. D.)--University of Washington, 2007. / Vita. Includes bibliographical references (leaves 176-207).

Thesis (Ph. D.)--West Virginia University, 2004. / Title from document title page. Document formatted into pages; contains ix, 103 p. : ill. (some col.). Vita. Includes abstract. Includes bibliographical references (p. 89-100).

Thesis (M.S.)--University of Michigan, 1971.

Thesis (M.S.)--University of Alabama at Birmingham, 2007. / Title from first page of PDF file (viewed Oct. 30, 2007). Includes bibliographical references (p. 45-56).

Esta pesquisa analisa o comportamento variável das oclusivas dentais /t/ e /d/ seguidas de [i] na fala de informantes das comunidades linguísticas de Santa Vitória do Palmar e Chuí, de acordo com os parâmetros da Teoria da Variação Linguística de Labov (1972). A amostra é proveniente do corpus pertencente ao projeto “Coleta de corpus nos municípios de Santa Vitória do Palmar e Chuí”, da Universidade Federal do Rio Grande – FURG. Os dados coletados foram submetidos a tratamento estatístico com o uso do programa de análise multivariada Goldvarb, nas versões 2001 e 2005. Este estudo tornou possível a conclusão de que a ocorrência da Africada Alveolar, variante bastante produtiva nos referidos municípios e frequente na fala das mulheres mais velhas e de baixa escolaridade, é uma regra variável, sujeita a condicionamentos linguísticos e extralinguísticos. / This research analyzes the variable behavior of dental stops /t/ e /d/ followed by [i] in the speech of informants of the language communities of Santa Vitória do Palmar and Chuí, according to the parameters of the Theory of Linguistic Variation (Labov, 1972). The sample is from the corpus belonging to the project “Coleta de corpus nos municípios de Santa Vitória do Palmar e Chuí”, from Universidade Federal do Rio Grande – FURG. The data collected were analyzed statistically with the use of the multivariate analysis program Goldvarb, versions 2001 and 2005. This study made possible the conclusion that the occurrence of alveolar affricate, very productive variant in these cities and often in the speech of older women with low education, is a variable rule, subject to linguistic and social conditioning.

Proposição: O presente trabalho propõe o estudo histológico descritivo da aplicação de um campo magnético sepultado, estático e permanente em área de enxerto ósseo alógeno liofilizado e dento-alveolar associada a defeito cirúrgico em mandíbulas de ratos. Metodologia: estudo experimental in vivo, randomizado. Amostra foi composta por 21 ratos, da espécie Rattus novergicus albinus, linhagem Wistar, machos, divididos em três grupos, correspondendo aos tempos experimentais de sete, 21 e 45 dias. Foram realizadas ostectomias associadas a odontossecções, na face lateral externa do corpo mandibular e no ramo ascendente, atingindo transversalmente a raiz do incisivo inferior e os ápices dos molares. Este defeito cirúrgico permitiu a adaptação de dispositivos metálicos magnetizados (grupo teste) e não magnetizados (grupo controle) associados às regiões apicais dos molares e ao coto distal do incisivo inferior, local este onde realizou-se enxertia óssea alógena liofilizada. A intensidade média do campo magnético sepultado e permanente foi de 250 gauss.Resultados: observou-se no grupo teste e controle, nos diferentes tempos experimentais a gradativa integração do enxerto ósseo alógeno liofilizado, a manutenção da vitalidade pulpar dos molares e coto proximal do incisivo inferior, além da contínua erupção do incisivo inferior do rato. Nos grupos teste, principalmente aos 45 dias, constatou-se uma diferenciada e exuberante neoformação óssea centrípeta em direção aos dispositivos metálicos imantados. Conclusão: o campo magnético sepultado in vivo foi capaz de favorecer o processo de cicatrização óssea no defeito cirúrgico criado. / Purpose: The present study provides a descriptive histological analysis of the use of a buried, static and permanent magnetic field in lyophilized bone allografts in a dentoalveolar area associated with surgical defects in rat mandibles. Method: a randomized in vivo experimental study was carried out with 21 male Wistar rats (Rattus norvegicus albinus), which were split into three groups, corresponding to 7, 21 and 45 experimental days. Ostectomies associated with odontotomies were performed on the outer lateral face of the mandibular body and in the ascending branch, cross-sectionally to the root of the lower incisor and to the molar apices. This surgical defect allowed for the use of magnetized (test group) and non-magnetized (control group) metal devices associated with molar apices and with the distal stump of the lower incisor, where the lyophilized bone allograft was performed. The intensity of the buried and permanent magnetic field amounted to 250 gauss. Results: In the test and control groups, there was gradual integration of the lyophilized bone allograft, maintenance of pulp vitality of the molars and of the proximal stump of the lower incisor, in addition to continuous eruption of the lower incisor. In the test groups, especially at 45 days, there was distinct and pronounced centripetal new bone formation in a direction toward the magnetized metal devices. Conclusion: the in vivo buried magnetic field favored bone healing at the site of the surgical defect.