Characteristics and dimensions of the infraorbital canal: a radiographic analysis using cone beam computed tomography (CBCT)

Abstract

The objective of the present paper is to describe all the anatomical considerations surrounding the nasopalatine foramen by relating them to the study of bone structure density via an accurate fractal dimension analysis in that area. We consecutively selected a sample of 130 patients, all of them with cone beam computed tomography (CBCT) images performed for treatment needs. We chose a specific window (ROI), which coincides with an axial cut at the level of the anterior nasal spine. Different anthropometric measurements were analyzed and a novel fractal dimension analysis was performed. Our sample consisted of 130 patients and was divided into two groups: group one (consisting of 65 subjects without loss of teeth) and group two (consisting of 65 patients with the absence of some teeth). In the sample, 52.31% were women (68 people). Mann-Whitney tests were applied to obtain the statistical results. The mean age of the patients in that sample was 53.67 years with a standard deviation of 8.20 years. We conclude that fractal dimension, a mathematical invariant, behaves symmetrically for binary images from the CBCT scanners of each subject of our sample of study. We also conclude that there were no significant differences between all the anthropometric measures used neither in the subjects themselves nor in the different groups. Therefore, some patterns of symmetry were appreciated at a complete range of levels.

Three-dimensional study of the orbit-related structures according to sex, age and skeletal deformities

“…In our study, we analyzed the IOC volume, which was higher in the older group (48-62 years) when compared to other age groups. Although no studies had analyzed the IOC volume per se, our results are in line with Fontolliet et al (2019), which used linear measures to estimate the IOC. They reported that the length and height of the IOC were significantly greater in patients older than 61 years (Fontolliet et al, 2019).…”

“…Although no studies had analyzed the IOC volume per se, our results are in line with Fontolliet et al (2019), which used linear measures to estimate the IOC. They reported that the length and height of the IOC were significantly greater in patients older than 61 years (Fontolliet et al, 2019). Accordingly, the increase in the IOC volume with age can be attributed to the posterior displacement of the maxilla and the lateral and inferior orbital border, which occurs in facial skeletal aging (Lambros, 2007;Lim, Min, Lee & Hong, 2016).…”

Variability in the number of infraorbital foramina in rhesus macaques (Macaca mulatta) and cynomolgus macaques (Macaca fascicularis)

“…Almost all authors found that the length of the IOG and IOC in males to be significantly larger. Moreover, Fontolliet et al (2019) did not show significant differences in the linear measurements on the left and the right body side.…”

“…When assessing the IOC/G complex in humans, variable‐length proportions are observed: IOC > IOG (Fontolliet, Bornstein, & von Arx, 2019; Kazkayasi et al, 2001; Orhan et al, 2016) while IOC < IOG (Hwang et al, 2013; Przygocka et al, 2013). However, these marked differences may be explained by the different methodological approaches to IOC and IOG measurements.…”

Current Information on the Development and Formation of the Structure of Small Bones of the Facial Division of the Skull

“…Використання в щелепно-лицевій хірургії високоефективних сучасних технології суттєво підвищило ефективність усунення різних аномалій і деформацій, які виявляються в лицевому відділі голови [1,2]. Однак, уникнути можливих ускладнень під час хірургічного лікування можливо тільки на основі детального вивчення всіх анатомо-топографічних структур, що входять до складу цієї ділянки [3][4][5].…”