TY - JOUR
T1 - Relationship between articular eminence inclination and alterations of the mandibular condyle
T2 - a CBCT study
AU - Sa, Saione Cruz
AU - Melo, Saulo Leonardo Sousa
AU - de Melo, Daniela Pita
AU - Freitas, Deborah Queiroz
AU - Campos, Paulo Sérgio Flores
N1 - Publisher Copyright:
© 2017, Brazilian Oral Research. All Rights Reserved.
PY - 2017
Y1 - 2017
N2 - This study aimed at verifying the correlation among angulation of the articular eminence (AE), shape of the condyle and its degenerative bone diseases (DBDs), according to age and sex, through Cone Beam Computed Tomography (CBCT). Five hundred and twenty-eight temporomandibular joints (TMJ) were evaluated. The condyles were classified as: flat, convex, angled and rounded, and the AE angulation was measured. The DBDs evaluated were osteophytes, flattening, erosion, subcortical cysts and spinal sclerosis. There was no difference in the mean angulations in relation to age group (p>0.05). In age groups of 60-69 years (p=0.003) and 70 years or over (p=0.021), the angulation was higher in males. There was an association between DBD and sex (p=0.047), in that the prevalence was higher in females. Differences in AE angles were not observed in condyles with one or no DBDs (p>0.05). However, the presence of two or more DBDs led to a decrease in the angle (p<0.05). Angled condyles showed higher AE angulations than the flat and convex types (p<0.01). In conclusion, the AE inclination is influenced by DBD and condyle shape; an association of two or more bone diseases in the condyle, or its flat or convex anatomy, results in a decrease in the angulation.
AB - This study aimed at verifying the correlation among angulation of the articular eminence (AE), shape of the condyle and its degenerative bone diseases (DBDs), according to age and sex, through Cone Beam Computed Tomography (CBCT). Five hundred and twenty-eight temporomandibular joints (TMJ) were evaluated. The condyles were classified as: flat, convex, angled and rounded, and the AE angulation was measured. The DBDs evaluated were osteophytes, flattening, erosion, subcortical cysts and spinal sclerosis. There was no difference in the mean angulations in relation to age group (p>0.05). In age groups of 60-69 years (p=0.003) and 70 years or over (p=0.021), the angulation was higher in males. There was an association between DBD and sex (p=0.047), in that the prevalence was higher in females. Differences in AE angles were not observed in condyles with one or no DBDs (p>0.05). However, the presence of two or more DBDs led to a decrease in the angle (p<0.05). Angled condyles showed higher AE angulations than the flat and convex types (p<0.01). In conclusion, the AE inclination is influenced by DBD and condyle shape; an association of two or more bone diseases in the condyle, or its flat or convex anatomy, results in a decrease in the angulation.
KW - Cone-Beam Computed Tomography
KW - Mandibular Condyle
KW - Temporomandibular Joint
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U2 - 10.1590/1807-3107BOR-2017.vol31.0025
DO - 10.1590/1807-3107BOR-2017.vol31.0025
M3 - Article
C2 - 28380089
AN - SCOPUS:85021858550
SN - 1806-8324
VL - 31
SP - 1
EP - 8
JO - Brazilian oral research
JF - Brazilian oral research
ER -