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Register a new userEvaluation Of The Relationship Between The Upper Airway Morphology And Facial Growth Type In Adults of The Syrian Coast Using Three Dimentional Computed Tomography
تقييم العلاقة بين مورفولوجية المجرى التنفدي العلوي و نموذج النمو لدى البالغين من الساحل السوري باستخدام التصوير المقطعي المحوسب ثلاثي الأبعاد
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Aِl-Baath University ورقة بحثية
Publication date
2016
fields
Dentistry
and research's language is
العربية
Created by
Shamra Editor
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هدفت هذه الدراسة إلى تحري علاقة أبعاد و مساحة المجرى التنفسي العلوي مع نموذج النمو الوجهي لدى عينة من الأفراد البالغين في منطقة الساحل السوري ، كما هدفت لتحري وجود اختلاف في أبعاد المجرى التنفسي العلوي بين الذكور و الإناث و ذلك بالاستعانة بالمقاطع السهمية و المحورية للتصوير المقطعي المحوسب ثلاثي الأبعاد.
This study aimed to investigate the relationship of the size and areas of the upper airway with the Facial growth type in adults ,and to investigate the differences in upper airway measurements between males and females using sagittal and axial slices of three dimensional computed tomography.
References used
SORENSEN H, SOLOW B, GERVE E , 1980 . Assesment Of The Nasopharyngeal Airway. A Rhinimetric And Radiographic Study In Children With Adenoids. Acta Otolaryngol , 89:227- 232
CEYLAN I, OKTAY H , 1995 . A Study On The Pharyngeal Size In Different Skeletal Patterns. Am J Orthod Dentofacial Orthop , 108:69-75
(GRAUER d , CEVIDANES L , STYNER M, ACKERMAN J, PROFFI W R , 2009 . Pharyngeal airway volume and shape from cone-beam computed tomography: Relationship to facial morphology. Am J Orthod Dentofacial Orthop , 136:805-14
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Introduction : The respiratory functions have wide effects on the orthodontic diagnosis and the treatment planning, besides their effects on the stability of the treatment results. So it is important to have a better and more deeply analysis of the u
pper airway morphology, and to evaluate its relationship with the cephalometric features that determine the intermaxillary relationship . Objective: The aim of this study was to evaluate the relationship of the size and areas of the upper airways in adults to the sagittal intermaxillary relationship using sagittal and axial slices of three dimensional computed tomography. Materials and methods: The Sample's consisted of 29 adults (12males,17 females) selected from patients who were ordinary undergoing 3DCT for non-orthodontic nor otolaryngology purposes and didn’t have orthodontic treatment . the anteroposterior positions of both the maxilla and the mandible were evaluated with the ANB angle , AF-BF distance and Wits appraisal .Then Pearson's Correlation was calculated to investigate the possible relationship between the upper airway measurements and the Cephalometric measurements determining intermaxillary relationship at the sagittal plane. Results: We found statistically significant correlation between the upper airway measurements and the cephalometric measurements determining sagittal intermaxillary relationship. The depth and area of NA showed negative correlation with ANB ,WITS,AF-BF (p＜0.05). We noticed that females have statistically significant smaller oropharyngeal depth than males. Conclusions: There is a statistically significant correlation between the upper airway measurements and the cephalometric measurements determining the sagittal intermaxillary relationship in adults with no clinical symptoms of the upper airway disorders..
The aim of the study is to determine the relationship between the
dental arch form and facial growth pattern in vertical diamond
among adult patients . The study consisted of 123 patients that
met the inclusion conditions.
In this study, 24 patients with posterior skeletal cross-bite were
treated at Orthodontics Department-Faculty of Dentistry in Hama
University. Hyrax expansion device was applied in all patients and
the results were assessed after active expansion
period. Cone
beam computed tomography radiograph were taken at the
assessment times.
Results showed that the midpalatal suture width has increased
significantly at all measured areas. The results revealed that
significant tipping in the canines , premolars and molars was
recorded in this study.
The research aim for testing the correlations between the morphology of the bone around the apexes of the central incisors and facial type.the sample consist of 59 patient.They were divided into three groups according to their facial Type.the result
is three groups ,19 short face type, 20 norm face type, and 20 long face type patients, aged 19 to 40 years.we have measured many measurement that determine the relationship between the apex of central upper incisor and its surroundings. The measurements were processed using analysis of variance Anova and Mann-Whitney U-tests and (Correlation coefficient )r .We find that at the upper central incisors, In short face type subjects the root apex of the upper central incisors was farther away from the lingual cortex than in the norm face type and long face type. In long face type subjects the root apex of the upper incisors was farther away from the palatal plane than in the norm face type and long face type.
Objective: This research aimed to evaluate the three-dimensional
effects of a Twin Block (TB) appliance on the pharyngeal airway
passage (PAP) in a sample of Class II patients with mandibular
retrusion using cone-beam computed tomography (CBCT).
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