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Previous issue date: 2015-03-31 / The rehabilitation of patients with lip and palate cleft can be more efficient when the volume of the alveolar cleft is obtained through Computered Tomography (CT) scans. Therefore, this work aimed to evaluate the volume of alveolar cleft in patients with unilateral lip and palate cleft before and after the orthodontic maxillary expansion by Cone-Beam Computed Tomography scans (CBCT). The study was conducted using the database of the Rehabilitation Center of Lip and Palate Cleft (CERLAP) at PUCRS Faculty of Dentistry. 26 patients were assessed during pre-expansion period (T1) and after the maxillary orthodontic expansion (T2) with two reviews (AV1 and AV2) in each period, performed by the same examiner. The software used for the measurement was the OsiriX MD. The average before and after the operation (T1 and T2) and the average of reviews (AV1 and AV2) were compared using the Student t test for paired samples at 5% of probability. To compare the volume between genders and age groups, we applied the Student t test for independent samples. We used the Bland-Altman method with limits of 95% in the evaluation of concordance between AV1 and AV2, which confirmed the high degree of reproducibility of the proposed method with 92% (24 of 26 measures) agreement between the measurements performed in the two periods. The Pearson correlation at T1 was r = 0.94 and r = 0.88 at T2. The average volume on AV1 and AV2 was 1.10 ? 0.48 and 0.98 ? 0.46 cm3, respectively, and both in the AV1 and AV2 it was observed that clefts on T2 had greater volume than the clefts on T1 (p = 000). The average on T1 and T2 were 0.86 ? 0.37 and 1.21 ? 0.57 cm3, respectively, with the difference being about 41% compared to T1. The volume of the alveolar cleft did not differ between genders, age groups and sides of the cleft. It was concluded that the software OsiriXMD has a high degree of reproducibility to delimit the alveolar cleft and measuring its volume with the use of CBCT image. / A reabilita??o de pacientes com fissura labiopalatinas pode ser mais eficiente quando o volume da fissura alveolar ? obtido atrav?s de imagens de Tomografias Computadorizadas. Por isso, esse trabalho objetivou avaliar poss?veis altera??es volum?tricas em fissuras alveolares de pacientes com fissuras labiopalatinas unilaterais antes e depois da expans?o ortod?ntica da maxila, atrav?s de imagens de tomografia computadorizada de feixe c?nico (TCFC). O trabalho foi desenvolvido utilizando-se o banco de dados do Centro de Reabilita??o de Fissura Labiopalatina (CERLAP) da Faculdade de Odontologia da PUCRS. Vinte e seis pacientes com fissura labiopalatina unilateral foram avaliados no per?odo pr?-expans?o (T1) e p?s-expans?o da maxila (T2) com duas avalia??es (AV1 e AV2) em cada per?odo, feitas pelo mesmo examinador. O software utilizado para a mensura??o foi o OsiriXMD MD. As m?dias antes e depois do procedimento (T1 e T2) e as m?dias das avalia??es (AV1 e AV2) foram comparadas atrav?s do teste t-Student para amostras pareadas ao n?vel de 5% de probabilidade de erro. Para comparar o volume entre os g?neros e as faixas et?rias, aplicou-se o teste t-Student para amostras independentes. Utilizou-se o m?todo de Bland-Altman com limites de 95% na avalia??o das concord?ncias entre AV1 e AV2, que comprovou o alto grau de reprodutibilidade do m?todo proposto com 92% (24 de 26 medidas) de concord?ncia entre as medi??es realizadas nos dois tempos. A correla??o de Pearson em T1 teve r=0,94 e em T2 r=0,88. O volume m?dio na AV1 e AV2 foi 1,10?0,48 e 0,98?0,46 cm3, respectivamente, sendo que tanto na AV1 quanto na AV2 observou-se que as fissuras em T2 apresentaram maior volume do que as fissuras em T1 (p=000). As m?dias em T1 e T2 foram 0,86?0,37 e 1,21?0,57 cm3, respectivamente, sendo a diferen?a de aproximadamente 41% em rela??o ? T1. O volume da fissura alveolar n?o diferiu entre os g?neros, faixas et?rias e lados da fissura. Concluiu-se que o software OsiriXMD possui alto grau de reprodutibilidade para delimitar a fissura alveolar e mensurar o seu volume com o uso de imagem de TCFC, e que o volume da fissura alveolar aumenta consideravelmente ap?s a expans?o da maxila.
| Identifer | oai:union.ndltd.org:IBICT/oai:tede2.pucrs.br:tede/6044 |
| Date | 31 March 2015 |
| Creators | Lessa Filho, Luciano Schwartz |
| Contributors | Weber, Jo?o Batista Blessmann, Menezes, Luciane |
| Publisher | Pontif?cia Universidade Cat?lica do Rio Grande do Sul, Programa de P?s-Gradua??o em Odontologia, PUCRS, Brasil, Faculdade de Odontologia |
| Source Sets | IBICT Brazilian ETDs |
| Language | Portuguese |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, info:eu-repo/semantics/doctoralThesis |
| Format | application/pdf |
| Source | reponame:Biblioteca Digital de Teses e Dissertações da PUC_RS, instname:Pontifícia Universidade Católica do Rio Grande do Sul, instacron:PUC_RS |
| Rights | info:eu-repo/semantics/openAccess |
| Relation | -8096554818733665164, 600, 600, 600, 4673435736271820140, -2070498469879244349 |
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