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Previous issue date: 2015-04-24 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES / A an?lise cefalom?trica ? caracterizada pela mensura??o de grandezas lineares e angulares,
por meio da demarca??o de pontos, dist?ncias e linhas em uma telerradiografia e ?
considerada de fundamental import?ncia para o diagn?stico e planejamento ortod?ntico.
Assim sendo, o objetivo desta pesquisa foi comparar grandezas cefalom?tricas obtidas por
ortodontistas e radiologistas, a partir da an?lise de uma mesma telerradiografia, em um
programa de an?lise cefalom?trica computadorizada. Todos os participantes da pesquisa
demarcaram 18 pontos cefalom?tricos em um computador notebook com tela de 14 polegadas,
conforme as instru??es fornecidas pelo pr?prio programa (Radiocef Studio 2
?
). A partir da?,
foram geradas 14 grandezas cefalom?tricas abrangendo par?metros esquel?ticos, dentoesquel?ticos,
dent?rios e tegumentares. A fim de averiguar a concord?ncia intra-examinador,
10 profissionais de cada grupo repetiram a demarca??o dos pontos com um intervalo m?nimo
de 8 dias entre as duas marca??es. A variabilidade intragrupo foi calculada com base nos
coeficientes de varia??o (CV). J? a compara??o intergrupos foi realizada atrav?s do teste t de
Student, para as vari?veis com distribui??o normal, e atrav?s do teste de Mann-Whitney, para
aquelas com distribui??o n?o normal. No grupo dos ortodontistas, as grandezas Pog e 1-NB,
SL, Linha S-Ls, Linha S-Li e 1.NB apresentaram elevada variabilidade interna. No grupo dos
radiologistas, o mesmo ocorreu com as grandezas Pog e 1-NB, Linha S-Ls, Linha S-Li e
1.NA. Na compara??o entre os grupos, todas as grandezas lineares analisadas e duas
angulares apresentaram diferen?a estatisticamente significativa entre radiologistas e
ortodontistas (p<0,05). De acordo com os resultados, o erro interexaminador na an?lise
cefalom?trica requer maior aten??o, mas n?o adv?m de uma classe espec?fica de especialistas,
sejam eles ortodontistas ou radiologistas. / Cephalometric analysis is the mensuration of linear and angular measures through
demarcation points as distances and lines on teleradiography, and is considered of
fundamental importance for diagnosis and orthodontic planning. In this manner, the objective
of this research was to compare cephalometric measurements obtained by dentists and
radiologists from the analysis of the same radiograph, in a computerized cephalometric
analysis program. All research participants marked 18 cephalometric points on a 14-inch
notebook computer, as directed by the program itself (Radiocef 2?). From there, they
generated 14 cephalometric parameters including skeletal, dental-skeletal, dental and soft
tissue. In order to verify the intra-examiner agreement, 10 professionals from each group
repeated the marking of the points with a minimum interval of eight days between the two
markings. The intra-group variability was calculated based on the coefficients of variation
(CV). The comparison between groups was performed using the Student t-test for normally
distributed variables, and using the Mann-Whitney test for those with non-normal distribution.
In the group of orthodontists, the measurements of Pog and 1-NB, SL, S-Ls Line, S-Li Line
and 1.NB showed high internal variability. In the group of radiologists, the same occurred
with the values of Pog and 1-NB, S-Ls Line, S-Li Line and 1.NA. In the comparison between
groups, all the analyzed linear values and two angular values showed statistically significant
differences between radiologists and dentists (p <0.05). According to the results, the
interexaminer error in cephalometric analysis requires more attention, but does not come from
a specific class of specialists, being either dentists or radiologists.
| Identifer | oai:union.ndltd.org:IBICT/oai:repositorio.ufrn.br:123456789/20074 |
| Date | 24 April 2015 |
| Creators | Ferreira, Lorena Marques |
| Contributors | 90405374453, http://lattes.cnpq.br/8173554638047087, Medrado, Juliana de Godoy Bezerra, 03037302429, http://lattes.cnpq.br/4904072073996080, Caldas, Sergei Godeiro Fernandes Rabelo, 00933226403, http://lattes.cnpq.br/4683996793870454, Pereira, Hallissa Simplicio Gomes |
| Publisher | Universidade Federal do Rio Grande do Norte, PROGRAMA DE P?S-GRADUA??O EM SA?DE COLETIVA, UFRN, Brasil |
| Source Sets | IBICT Brazilian ETDs |
| Language | Portuguese |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, info:eu-repo/semantics/masterThesis |
| Source | reponame:Repositório Institucional da UFRN, instname:Universidade Federal do Rio Grande do Norte, instacron:UFRN |
| Rights | info:eu-repo/semantics/openAccess |
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