Cephalometric Evaluation of Main Airway Dimensions in Subjects with Different Growth Patterns and Their Relation to Patients' Ages and Genders.

2022 ◽  
pp. 1
Author(s):  
Rabaa Aboubakr ◽  
Nabeela Almalki ◽  
Salah Alanazi ◽  
Abdullah Almulhim ◽  
Osama Alkhathami ◽  
...  
Keyword(s):  
Growth Patterns ◽  
Patients Âgés ◽  
Airway Dimensions

scholarly journals Cephalometric Evaluation of Main Airway Dimensions in Subjects with Different Growth Patterns and their Relation to Patients’ Ages and Genders

2020 ◽  
Vol 4 (11) ◽  
pp. 84-90
Author(s):  
Rabaa Mahmoud Aboubakr ◽  
Nabeela Hassan Almalki ◽  
Sohir Shehata Kamel ◽  
Salah Awad Alanazi ◽  
Saleh Hassan Alqhtani ◽  
...  
Keyword(s):  
Growth Patterns ◽  
Patients Âgés ◽  
Airway Dimensions

scholarly journals Tomographic Evaluation of the Lower Incisor’s Bone Limits in Mandibular Symphysis of Orthodontically Untreated Adults

2017 ◽  
Vol 2017 ◽  
pp. 1-6
Author(s):  
Paula Guerino ◽  
Mariana Marquezan ◽  
Maurício Barbieri Mezomo ◽  
Kaline Thumé Antunes ◽  
Renésio Armindo Grehs ◽  
...  
Keyword(s):  
Alveolar Bone ◽  
Growth Patterns ◽  
Facial Growth ◽  
Patient Age ◽  
Lower Incisor ◽  
Mandibular Symphysis ◽  
Patients Âgés ◽  
Patient Âgé ◽  
Cephalometric Measurements ◽  
Lower Incisors

The amount of available bone in the lower incisor region is critical for periodontal preservation when planning large anteroposterior dental movements. The aims of this study were to evaluate bone limits of the lower incisors in the mandibular symphysis and to verify whether they are influenced by facial growth patterns, lower incisor inclinations, skeletal anteroposterior relationships, or patient age. Tomographic images of 40 orthodontically untreated patients were evaluated and measurements of width and height of the mandibular symphysis, thickness on the lingual and labial sides of the alveolar bone, and thickness of the entire alveolar bone were performed in sagittal view. The following cephalometric measurements were also evaluated: growth pattern (FHI), lower incisor inclination (IMPA), and skeletal anteroposterior relationships (AO-BO). Pearson’s correlation test was used to assess associations among bone measurements, cephalometric measurements, and patients’ ages. Weak to moderate positive correlations between FHI and bone measurements on the labial side of the incisors and total alveolar width were found. The height of the symphysis had a moderate negative correlation with FHI. It was concluded that patient age, FHI, and IMPA influenced bone limits of the lower incisors in the mandibular symphysis, while AO-BO had no influence.

scholarly journals Soft tissue airway dimensions and craniocervical posture in subjects with different growth patterns

2014 ◽  
Vol 85 (4) ◽  
pp. 604-610 ◽  
Author(s):  
Juhi Ansar ◽  
Sandhya Maheshwari ◽  
Sanjeev K. Verma ◽  
Raj Kumar Singh ◽  
Deepak K. Agarwal ◽  
...  
Keyword(s):  
Head Position ◽  
Growth Patterns ◽  
The Other ◽  
Continuous Variables ◽  
A Value ◽  
Cephalometric Radiograph ◽  
Mandibular Plane ◽  
Skeletal Pattern ◽  
Post Hoc ◽  
Airway Dimensions

ABSTRACTObjective: To compare the dimensions of the nasopharynx and oropharynx of subjects with different growth patterns and to determine whether any correlation exists with their craniocervical posture.Materials and Methods: Cephalometric radiograph of 60 subjects (16–25 years old), taken in natural head position, were divided into three groups according to the mandibular plane angle: hypodivergent (SN/MP <26°), normodivergent (SN/MP 26°–38°), and hyperdivergent (SN/MP <38°). Correlations were calculated between nasopharyngeal area, oropharyngeal area, and craniocervical posture. Continuous variables were compared by one-way analysis of variance, and the significance of mean difference between the groups was done by the Tukey post hoc test. A value of P < .05 was considered statistically significant.Results: Patients in the hyperdivergent group were found to have significantly smaller nasopharyngeal and oropharyngeal areas than the other groups (P < .001 and P < .05, respectively). Similarly, the oropharyngeal area in the normodivergent group was significantly smaller than that in the hypodivergent group (P < .05). However, no significant differences were found in the nasopharyngeal area between the hypodivergent and normodivergent groups and between the hyperdivergent and normodivergent groups (P > .05). Reduced pharyngeal airways were typically seen in patients with a large craniocervical angle and a large mandibular inclination.Conclusions: Smaller nasopharyngeal and oropharyngeal airways were seen in connection with a large craniocervical and a large mandibular inclination. We therefore suggest that the vertical skeletal pattern may be one of the factors that contribute to nasopharyngeal and oropharyngeal obstruction.

scholarly journals A Cephalometric Comparative Study for Upper Airway Dimensions in Different Craniofacial Growth Patterns

2018 ◽  
Vol 2 (6) ◽  
pp. 150-156
Author(s):  
Himali Gupta ◽  
Vinay S Dua ◽  
Mannu Khanna
Keyword(s):  
Growth Pattern ◽  
Upper Airway ◽  
Normal Growth ◽  
Growth Patterns ◽  
Obstructive Sleep ◽  
Significant Difference ◽  
Student’S T ◽  
Facial Types ◽  
Airway Dimensions ◽  
Student’S T Test

AIM AND OBJECTIVES: To compare different craniofacial patterns with pharyngeal widths. In OSA (Obstructive Sleep Apnea) patients, a mutual association between the pharyngeal structures and the dentofacial patterns has been suggested. The present study was performed to compare the nasopharynx, oropharynx and hypopharynx dimensions of persons with hypodivergent, normodivegent and hyperdivergent facial types and to predict and to facilitate treatment for OSA patients.Hypothesis: The Null hypothesis for the study was that there is no difference between the upper airway for patients with different growth pattern.MATERIALS AND METHODS: The sample comprised 60 patients divided into three groups: hypodivergent (n=20), normodivergent (n=20), and hyperdivergent (n=20) according to Jarabak’s ratio and FH-MP angle, which were used to compare the soft tissue airway dimensions. The statistical analysis was performed using Student’s t-Test, one way ANOVA (analysis of variance) and LSD (Least significant difference) test.RESULT: Overall narrower anteroposterior pharyngeal dimension was found in the hyperdivergent group as compared to the normodivergent group. Whereas, the superior part of upper pharyngeal width in the subjects with hypodivergent growth pattern was significantly narrower than in normal growth pattern groups.CONCLUSION: In hyperdivergent patients, the narrower anterioposterior dimension of the airway may be due to the skeletal features common to such patients, i.e., posterior vertical maxillary excess, posterior position and decreased mandibular size. The variations of the upper airway may be attributed to the horizontal and vertical growth patterns. Upper airway obstruction and later on OSA may be predisposed by skeletal deficiency.

Cephalometric evaluation of the airway dimensions in subjects with different growth patterns

2015 ◽  
Vol 3 (2) ◽  
pp. 108 ◽  
Author(s):  
Juhi Ansar ◽  
Preeti Bhattacharya ◽  
Sandhya Maheshwari ◽  
RajKumar Singh ◽  
SanjeevK Verma ◽  
...  
Keyword(s):  
Growth Patterns ◽  
Airway Dimensions

Diagnostic Value of Electron Microscopy in Soft Tissue Tumors

1970 ◽  
Vol 28 ◽  
pp. 220-221
Author(s):  
Gerald Fine ◽  
Azorides R. Morales
Keyword(s):  
Cardiac Myxoma ◽  
Osteogenic Sarcoma ◽  
Diagnostic Value ◽  
Soft Tissue Tumors ◽  
Amelanotic Melanoma ◽  
Growth Patterns ◽  
Light Microscopic Level ◽  
Mesenchymal Tumors ◽  
Good Agreement

For years the separation of carcinoma and sarcoma and the subclassification of sarcomas has been based on the appearance of the tumor cells and their microscopic growth pattern and information derived from certain histochemical and special stains. Although this method of study has produced good agreement among pathologists in the separation of carcinoma from sarcoma, it has given less uniform results in the subclassification of sarcomas. There remain examples of neoplasms of different histogenesis, the classification of which is questionable because of similar cytologic and growth patterns at the light microscopic level; i.e. amelanotic melanoma versus carcinoma and occasionally sarcoma, sarcomas with an epithelial pattern of growth simulating carcinoma, histologically similar mesenchymal tumors of different histogenesis (histiocytoma versus rhabdomyosarcoma, lytic osteogenic sarcoma versus rhabdomyosarcoma), and myxomatous mesenchymal tumors of diverse histogenesis (myxoid rhabdo and liposarcomas, cardiac myxoma, myxoid neurofibroma, etc.)

Episodic whole plant growth patterns in Ligustrum

1993 ◽  
Vol 89 (1) ◽  
pp. 33-39 ◽  
Author(s):  
Jeff S. Kuehny ◽  
Mary C. Halbrooks
Keyword(s):  
Plant Growth ◽  
Growth Patterns ◽  
Whole Plant

Larval Behavior and Protective Implications for Sea Scallops and Surf Clams within the Middle Atlantic Bight: Part Two, Variability of Physical Environment and Larval Behaviors

2019 ◽  
Vol 2 (2) ◽  
Keyword(s):  
Physical Environment ◽  
Climate Changes ◽  
Larval Growth ◽  
Growth Patterns ◽  
Larval Behavior ◽  
Larval Release ◽  
Physical Conditions ◽  
Climatic Variations ◽  
Middle Atlantic ◽  
Sea Scallops

Larval growth and settlement rates are important larval behaviors for larval protections. The variability of larval growthsettlement rates and physical conditions for 2006-2012 and in the future with potential climate changes was studied using the coupling ROMS-IMBs, and new temperature and current indexes. Forty-four experimental cases were conducted for larval growth patterns and release mechanisms, showing the spatial, seasonal, annual, and climatic variations of larval growthsettlement rates and physical conditions, demonstrating that the slight different larval temperature-adaption and larval release strategies made difference in larval growth-settlement rates, and displaying that larval growth and settlement rates highly depended upon physical conditions and were vulnerable to climate changes.

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