Enlargement of the frontal sinus

Brown, W. A. B.; Molleson, Theya; Chinn, Susan

doi:10.1080/03014468400007091

Cited by 74 publications

(81 citation statements)

References 3 publications

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“…However, Brown et al showed that the median age for the first appearance of the frontal sinus was 3.25 years for boys and 4.58 years for girls. 2 The median age at which the main increase in size of the sinus ceased was 15.68 years for boys and 13.72 years for girls. Furthermore, not only the mean skull bone density, but also the bone density of all skull bones separately, displays this phenomenon in our study.…”

Section: Bone Thicknessmentioning

confidence: 99%

Creating a normative database of age-specific 3D geometrical data, bone density, and bone thickness of the developing skull: a pilot study

Delye

Clijmans

Mommaerts

et al. 2015

PED

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laboratory investigation J neurosurg Pediatr 16:687-702, 2015 F inite element models (FEMs) of the human head are widely used for studying the biomechanics of traumatic brain injury. 12 FEMs of the human head are virtual computer models representing a human head in great anatomical detail. These models try to offer a better understanding of brain injury tolerance by simulating stress and strain patterns in the skull and brain tissue after impact, mimicking the occurrence of traumatic brain injury as realistically as currently possible. These models try to accurately predict the circumstances that cause traumatic brain injury. To do this, an FEM needs material properties of the brain tissue and skull to correlate a particular applied inertial and contact load to resulting intracranial strains and stresses. Therefore, a correct anatomical representation and use of correct material properties of a child's skull and each intracranial tissue are necessary to develop an FEM of a child's head, capable of realistically simulating the response upon impact. Only such an obJect Finite element models (FEMs) of the head are used to study the biomechanics of traumatic brain injury and depend heavily on the use of accurate material properties and head geometry. Any FEM aimed at investigating traumatic head injury in children should therefore use age-specific dimensions of the head, as well as age-specific material properties of the different tissues. In this study, the authors built a database of age-corrected skull geometry, skull thickness, and bone density of the developing skull to aid in the development of an age-specific FEM of a child's head. Such a database, containing age-corrected normative skull geometry data, can also be used for preoperative surgical planning and postoperative long-term follow-up of craniosynostosis surgery results. methods Computed tomography data were processed for 187 patients (age range 0-20 years old). A 3D surface model was calculated from segmented skull surfaces. Skull models, reference points, and sutures were processed into a MATLAB-supported database. This process included automatic calculation of 2D measurements as well as 3D measurements: length of the coronal suture, length of the lambdoid suture, and the 3D anterior-posterior length, defined as the sum of the metopic and sagittal suture. Skull thickness and skull bone density calculations were included. results Cephalic length, cephalic width, intercoronal distance, lateral orbital distance, intertemporal distance, and 3D measurements were obtained, confirming the well-established general growth pattern of the skull. Skull thickness increases rapidly in the first year of life, slowing down during the second year of life, while skull density increases with a fast but steady pace during the first 3 years of life. Both skull thickness and density continue to increase up to adulthood. conclusions This is the first report of normative data on 2D and 3D measurements, skull bone thickness, and skull bone density for children aged 0-20 y...

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Section: Bone Thicknessmentioning

confidence: 99%

Creating a normative database of age-specific 3D geometrical data, bone density, and bone thickness of the developing skull: a pilot study

Delye

Clijmans

Mommaerts

et al. 2015

PED

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“…Because the sample of the present study was drawn from the same population as the German study, it may be suggested that internal structures of the skull such as the pneumatic cavities follow distinct growth trajectories. A number of allometric studies on variation in the size of the paranasal sinuses in humans and nonhuman primates [2,17,18,38,39] indicate that the size of the paranasal sinus is a function of body size. However, in view of the finding [10] that the differences in maxillary sinus size between hominoids and macaques cannot be explained simply by differences in skull/body size, it seems reasonable to assume that various factors influence the variation in the morphology of the paranasal sinuses.…”

Section: Growth Of the Maxillary Sinusmentioning

confidence: 99%

A Longitudinal Study of the Growth Pattern of the Maxillary Sinus in the Pig-Tailed Macaque (Macaca nemestrina)

Koppe

Swindler²,

Lee³

2000

IJFP

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The ontogeny of sexual dimorphism in maxillary sinus size in a nonhuman primate was studied longitudinally for a period of 8 years in 25 female and 25 male Macaca nemestrina via lateral cephalograms. The maxillary sinus was traced and its area digitized. The growth of female maxillary sinuses was described with a Gompertz model; the best fit to the male data was obtained by the logistic model. Growth curves and confidence intervals revealed that the sinuses grew in a similar fashion for 3–4 years in both sexes. After this, female sinuses achieved a plateau in their development while male sinuses continued to grow. Confidence intervals suggested that size dimorphism appeared at the age of 6.3 years. Lowess regression indicated growth spurts in both sexes. Females experienced an earlier and smaller spurt than males. Sexual dimorphism in maxillary sinus size seems to represent a combination of differences in velocity and length of growth. This study indicates that growth of the maxillary sinus follows closely the growth in body size. Nevertheless, due to the variation in sinus size in Macaca, it is questionable if body size is the main determinant of maxillary sinus size. It is suggested that Macaca, with its wide geographic range and different environments, is an especially appropriate genus to use to test hypotheses about the evolution of skull pneumatization in primates.

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“…Moreover, they affirmed that their results regarding frontal sinus size were in agreement with the data from previous X-ray studies. Brown et al 12 found that, upon radiographic examination of the frontal sinus, there was no further expansion after age 15.68 for males and 13.72 for females.…”

Section: Introductionmentioning

confidence: 99%

Relationship between anterior occlusion and frontal sinus size

Said

Rossouw

Fishman

et al. 2017

The Angle Orthodontist

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Objective: To determine the relationship between anterior occlusion and frontal sinus size. Methods: The patient database at the Eastman Institute for Oral Health, University of Rochester, was searched for male patients older than 15 years and females older than 13 years of age. After applying inclusion and exclusion criteria, participants' photos and lateral cephalometric and posteroanterior radiographs were examined then classified into a control class I group (n ¼ 20, 15.7 6 2.7 years) and eight malocclusion groups (n ¼ 136, 16

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Enlargement of the frontal sinus

Cited by 74 publications

References 3 publications

Creating a normative database of age-specific 3D geometrical data, bone density, and bone thickness of the developing skull: a pilot study

Creating a normative database of age-specific 3D geometrical data, bone density, and bone thickness of the developing skull: a pilot study

A Longitudinal Study of the Growth Pattern of the Maxillary Sinus in the Pig-Tailed Macaque (Macaca nemestrina)

Relationship between anterior occlusion and frontal sinus size

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