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Morphometric analysis of infraorbital foramen using cone beam computed tomography in a cohort of Sri Lankan adults / Análisis morfométrico del foramen infraorbitario mediante tomografía computarizada de haz cónico en una cohorte de adultos de Sri Lanka
Thilakumara, I. P; Hettiarachchi, P. V. K. S; Jayasinghe, R. M; Fonseka, M. C. N; Jayasinghe, R. D; Nanayakkara, C. D.
  • Thilakumara, I. P; University of Peradeniya. Faculty of Dental Sciences. Department of Prosthetic Dentistry. LK
  • Hettiarachchi, P. V. K. S; University of Peradeniya. Faculty of Dental Sciences. Department of Oral Medicine and Periodontology. LK
  • Jayasinghe, R. M; University of Peradeniya. Faculty of Dental Sciences. Department of Prosthetic Dentistry. LK
  • Fonseka, M. C. N; University of Peradeniya. Faculty of Dental Sciences. Department of Restorative Dentistry. LK
  • Jayasinghe, R. D; University of Peradeniya. Faculty of Dental Sciences. Department of Oral Medicine and Periodontology. LK
  • Nanayakkara, C. D; University of Peradeniya. Faculty of Dental Sciences. Department of Basic Sciences. LK
Int. j. morphol ; 39(2): 489-496, abr. 2021. ilus, tab
Article in English | LILACS | ID: biblio-1385380
ABSTRACT

SUMMARY:

Infraorbital foramen (IOF) located bilaterally within the maxillary bone about 1 cm inferior to the infraorbital margin is a vital landmark when delivering local anesthesia and during surgical interventions in the midface region. A total of 122 infraorbital foramina in 61 cone beam computed tomographic (CBCT) images of 32 females and 29 males in the age range of 17 to 32 were analyzed to determine the shape, direction, presence of accessory foramina, size and the precise position of IOF in relation to the inferior orbital margin (IOM), maxillary midline (MM), lateral nasal wall (LNW), alveolus (ALV) and maxillary teeth in a group of Sri Lankan people. The IOF was oval in shape (80.3 % and 88.5 % on the right and left side, respectively) in a majority of individuals. The infraorbital foramina were located at a mean distance of 5.56 ± 3.95 and 4.91 ± 2.08 mm, below the IOM on the right and left side, 27.13 ± 2.6 and 26.99 ± 2.73 on the right and left side from the mid maxillary line, 11.96 ± 3.45 mm and 12.18 ± 3.35 from the LNW on the right and left side and 29.59 ± 3.59 and 29.65 ± 3.28 above the alveolar crest on the right and left side. There were no statistically significant differences between the left and right sides or between sexes. Majority of IOF (37.5 % and 55.9 % on the right and left side, respectively) were located in the vertical plane passing though the maxillary second premolar tooth.
RESUMEN
RESUMEN El foramen infraorbitario (FIO) ubicado bilateralmente dentro de la maxila, aproximadamente 1 cm inferior al margen infraorbitario, es un punto de referencia vital cuando se administra anestesia local y durante intervenciones quirúrgicas en la región media de la cara. Se analizaron un total de 122 forámenes infraorbitarios en 61 imágenes de tomografía computarizada de haz cónico (CBCT) de 32 mujeres y 29 hombres en un rango etario de 17 a 32 años para determinar la forma, dirección, presencia de forámenes accesorios, tamaño y posición precisa de FIO en relación con el mar- gen orbitario inferior (MOI), la línea mediana maxilar (MM), la pared nasal lateral (PNL), el alvéolo (ALV) y los dientes maxilares en un grupo de personas de Sri Lanka. En la mayoría de los adultos se observó que el FIO tenía forma ovalada (80,3 % y 88,5 % en el lado derecho e izquierdo, respectivamente) Los forámenes infraorbitarios se ubicaron a una distancia media de 5,56 ± 3,95 y 4,91 ± 2,08 mm, por debajo del MOI en los lados derecho e izquierdo; 27,13 ± 2,6 y 26,99 ± 2,73 en el lado derecho e izquierdo desde la línea maxilar mediana, 11,96 ± 3,45 mm y 12,18 ± 3,35 de la PNL en el lado derecho e izquierdo y 29,59 ± 3,59 y 29,65 ± 3,28 por encima de la cresta alveolar en los lados derecho e izquierdo. No hubo diferencias estadísticamente significativas entre los lados izquierdo y derecho o entre sexos. La mayoría de IOF (37,5 % y 55,9 % en el lado derecho e izquierdo, respectivamente) se ubicaron en el plano vertical que pasa por el segundo premolar maxilar.
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Orbit / Cone-Beam Computed Tomography Limits: Adolescent / Adult / Female / Humans / Male Country/Region as subject: Asia Language: English Journal: Int. j. morphol Journal subject: Anatomy Year: 2021 Type: Article Affiliation country: Sri Lanka Institution/Affiliation country: University of Peradeniya/LK

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Full text: Available Index: LILACS (Americas) Main subject: Orbit / Cone-Beam Computed Tomography Limits: Adolescent / Adult / Female / Humans / Male Country/Region as subject: Asia Language: English Journal: Int. j. morphol Journal subject: Anatomy Year: 2021 Type: Article Affiliation country: Sri Lanka Institution/Affiliation country: University of Peradeniya/LK