Análise de textura da microarquitetura medular da cabeça de mandíbula e sua relação com o lado de prefêrencia mastigatório: estudo por imagens de tomografia computadorizada de feixe cônico
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2024-03-06
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Universidade Estadual Paulista (Unesp)
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Objetivo: O objetivo deste estudo foi investigar, por meio da técnica de análise de textura (AT) em imagens de tomografia computadorizada de feixe cônico (TCFC), possíveis alterações da microarquitetura óssea de côndilos mandibulares, relacionados ao lado de preferência mastigatório (LPM). Além de estudar os padrões medulares pela AT e suas possíveis relações com: lado de dominância do paciente (canhoto ou destro), presença de desvio de abertura bucal e presença de dor articular. Material e Métodos: Foram analisados 87 exames de TCFC (174 ATM), sendo selecionados, de cada ATM 03 cortes parassagitais consecutivos, no software OnDemand3D (CyberMed Inc., Seul, Coreia do Sul). Previamente, cada indivíduo foi submetido ao teste para determinação do LPM e o lado controle contralateral (LC), assim como determinado o lado de dominância, a presença de desvio de abertura bucal e dor. Estes cortes foram exportados para o software MaZda 4.6 (Lodz University of Technical, Lodz, Polônia), onde uma região de interesse (ROI) circular e padronizada foi traçada no centro de cada côndilo. Foi então realizado o cálculo da AT por meio da matriz de co-ocorrência, retornando 07 parâmetros de textura. Resultados: Houve diferenças estatisticamente significantes (p<0,05) nos parâmetros Contrast, InvDfMom, SumEntrp e Entropy entre o LPM e LC, indicando menor homogeneidade. No entanto, não ocorreu diferenças estatisticamente significantes dos parâmetros de textura considerando: dominância, presença de dor e desvio. Houve associação entre o LPM e a dominância. Conclusão: A AT possibilitou a identificação de alterações medulares condilares de articulações temporomandibulares, indicando padrões ósseos não homogêneos relacionadas ao lado de preferência mastigatório.
Objective: The objective of this study was to investigate, using the texture analysis (TA) technique in cone beam computed tomography (CBCT) images, possible changes in the bone microarchitecture of mandibular condyles, related to the preferred masticatory side (LPM). In addition to studying spinal patterns using TA and their possible relationships with: the patient's dominant side (left-handed or righthanded), presence of deviation in mouth opening and presence of joint pain. Material and Methods: 87 CBCT exams (174 TMJ) were analyzed, with 03 consecutive parasagittal sections being selected from each TMJ using the OnDemand3D software (CyberMed Inc., Seoul, South Korea). Previously, each individual was subjected to the test to determine the LPM and the contralateral control side (LC), as well as determining the dominance side, the presence of mouth opening deviation and pain. These sections were exported to the software MaZda 4.6 (Lodz University of Technical, Lodz, Poland), where a circular and standardized region of interest (ROI) was drawn in the center of each condyle. The AT was then calculated using the co-occurrence matrix, returning 07 texture parameters. Results: There were statistically significant differences (p<0.05) in the Contrast, InvDfMom, SumEntrp and Entropy parameters between LPM and LC, indicating lower homogeneities in these. There were no statistically significant differences in texture parameters considering: dominance, presence of pain and deviation. There was an association between LPM and dominance. Conclusion: TA made it possible to identify condylar medullary changes in temporomandibular joints, indicating non-homogeneous bone patterns related to the preferred chewing side.
Objective: The objective of this study was to investigate, using the texture analysis (TA) technique in cone beam computed tomography (CBCT) images, possible changes in the bone microarchitecture of mandibular condyles, related to the preferred masticatory side (LPM). In addition to studying spinal patterns using TA and their possible relationships with: the patient's dominant side (left-handed or righthanded), presence of deviation in mouth opening and presence of joint pain. Material and Methods: 87 CBCT exams (174 TMJ) were analyzed, with 03 consecutive parasagittal sections being selected from each TMJ using the OnDemand3D software (CyberMed Inc., Seoul, South Korea). Previously, each individual was subjected to the test to determine the LPM and the contralateral control side (LC), as well as determining the dominance side, the presence of mouth opening deviation and pain. These sections were exported to the software MaZda 4.6 (Lodz University of Technical, Lodz, Poland), where a circular and standardized region of interest (ROI) was drawn in the center of each condyle. The AT was then calculated using the co-occurrence matrix, returning 07 texture parameters. Results: There were statistically significant differences (p<0.05) in the Contrast, InvDfMom, SumEntrp and Entropy parameters between LPM and LC, indicating lower homogeneities in these. There were no statistically significant differences in texture parameters considering: dominance, presence of pain and deviation. There was an association between LPM and dominance. Conclusion: TA made it possible to identify condylar medullary changes in temporomandibular joints, indicating non-homogeneous bone patterns related to the preferred chewing side.
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Articulação temporomandibular, Disfunções temporomandibulares, Tomografia computadorizada de feixe cônico., Temporomandibular joint, Temporomandibular disorders, Cone beam computed tomography