scholarly journals The relationship between facial skeleton morphology and bite force in people with a normal relation of the bases of jaws and skull

2015 ◽  
Vol 74 (4) ◽  
pp. 508-512
Author(s):  
Ł. Sidorowicz ◽  
J. Szymańska
1986 ◽  
Vol 95 (1) ◽  
pp. 10-15 ◽  
Author(s):  
Peter J. Koltai ◽  
Gary W. Wood

Despite advances in radiology—including CT scanning—the three-dimensional (3D) nature of facial fractures must still be inferred by the spatial imagination of the physician. A computer system (Insight Phoenix Data Systems, Inc., Albany, N.Y.) uses CT studies as substrate for 3D reconstructions. We have used the insight computer for the evaluation and surgical planning of facial fractures of 16 patients with complex injuries. We present five illustrative cases, directly photographed from the computer monitor. Images can also be manipulated in real time by rotating or planar sectioning (functions best appreciated on video). The ability to cybernetically extract the facial skeleton from living subjects provides precise anatomic data previously unobtainable. The images are valuable for an accurate assessment of the relationship between the injured and uninjured sections of the face. We conclude that 3D reconstruction is an important advance in the treatment of facial fractures.


CRANIO® ◽  
2018 ◽  
Vol 37 (4) ◽  
pp. 246-253 ◽  
Author(s):  
Chan-Woo Jeong ◽  
Kyung-Ho Kim ◽  
Hyo-Won Jang ◽  
Hye-Sun Kim ◽  
Jong-Ki Huh
Keyword(s):  

2017 ◽  
Vol 20 (2) ◽  
pp. 38
Author(s):  
Maria Carolina Salomé Marquezin ◽  
Clízia Genoveze Gauch ◽  
Camila Alvarez Siqueira ◽  
Fernanda Yukie Kobayashi ◽  
Fernando Luiz Affonso Fonseca ◽  
...  

<p><strong>Objective:</strong> To better understand the relationship between malocclusion and masticatory and salivary functions in the primary dentition, the aim was to evaluate the differences in masticatory performance (MP), facial morphology (FM), maximal bite force (BF) and salivary parameters in 65 preschool children with normal occlusion (n = 22), functional posterior crossbite (n = 20) and anterior open bite (n = 23), and to explore the relationship between these variables. <strong>Material and Methods:</strong> MP, FM and BF were assessed by sieving method, anthropometry and gnatodynamometer, respectively. Stimulated (SS) and unstimulated (US) saliva flow and composition were measured by automated colorimetric technique. Data were analyzed using ANOVA/Kruskal-Wallis, t-test/Wilcoxon and Pearson/Spearman correlation test. The relationship between SS flow rate and the independent variables were assessed using multiple linear regression. <strong>Results:</strong> The lower face dimension was smaller in crossbite-group, and a decreased BF in the crossbite-side of the dental arch was observed. BF correlated positively with intergonial width in open bite group. In malocclusion groups, better MP correlated with byzigomatic and intergonial widths. US flow rate was lower in crossbite-group and total protein concentration differed between SS and US saliva only in the crossbite-group, being lower in US. Amylase activity was higher in SS than US in all groups. SS flow rate related positively with age and negatively with the presence of malocclusion. <strong>Conclusion:</strong> In young subjects, significant correlations were found between masticatory parameters and facial dimensions; in addition, some important masticatory and salivary parameters differed between children with different morphological occlusions, hence the importance of the early assessment of these parameters.</p><p><strong>KEYWORDS</strong></p><p><strong> </strong>Bite Force; Dental Occlusion; Masticatory System; Primary Dentition.</p>


2007 ◽  
Vol 21 (2) ◽  
pp. 146-152 ◽  
Author(s):  
Maria Beatriz Duarte Gavião ◽  
Vaneska Graciele Raymundo ◽  
Alessandra Matias Rentes

The aim of this study was to evaluate the relationship between masticatory performance and maximum bite force in the primary dentition. The sample comprised 15 children of both genders, aged 3 to 5.5 years, with good systemic and oral health, presence of all primary teeth without large caries, no structural anomalies, without severe malocclusion, and no history of orthodontic treatment. They chewed one standardized silicone tablet for 20 strokes and the median areas of the chewed particles were measured by an optical digital system. Enhanced performance was measured by a decrease in the chewed particle areas and an increase in the amount of chewed particles. The bite force was determined using a transmitter pressurized tube connected to an analog/digital electronic circuit. Weight, height and body mass index (kg/m²) were determined. The data were analyzed by descriptive statistics and Pearson or Spearman's correlations, after assessment of the normality of the distribution by Shapiro-Wilks' W-test. There was no correlation between bite force and particle area and amount (p > 0.05), neither were the body variables correlated with the masticatory variables (p > 0.05). It was concluded that the bite force was not a primary determinant of masticatory performance, and both variables were not dependent on body variables in the studied sample.


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