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Register a new userA Comparative Study Of upper Airways In The Sagittal Plane in different types of malocclusions With McNamara Analysis On Lateral Cephalometric radiographs
دراسة مقارنة للطرق التنفسية العلوية في الأصناف المختلفة لسوء الإطباق في المستوي السهمي باستخذام تحليل مكنمارا على الصور الشعاعية السيفالومترية
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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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تمت هذه الدراسة لمقارنة عرض مجرى الهواء البلعومي العلوي و السفلي عند مرضى الصنف الأول و الثاني و الثالث الهيكلي لسوء الإطباق باستخدام تحليل مكنمارا.
This study is undertaken to compare the upper and lower pharyngeal airways width in subjects with Class I, Class II, and Class III malocclusion by McNamara analysis .
References used
Grewal N, Godhane A. Lateral cephalometry: A simple and economical clinical guide for assessment of nasopharyngeal airway space in mouth breathers. ContempClin Dent 2010; 1(2): 66–69
Martin O, Muelas L, Vi~nas MJ. Nasopharyngeal cephalometric study of ideal occlusions. Am J Orthod Dentofacial Orthop 2006;130:436.e1-9
Moss ML. The functional matrix: functional cranial components.In: Kraus BS, editor. Vistas in orthodontics. Philadelphia: Leaand Febiger; 1962
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The Objective is to study the relation between craniocervical
posture and skeletal patterns of malocclusion in the sagittal plane in
adults , None of them had a history of previous orthodontic or
orthognathic surgery treatment by using lateral cep
halometric
radiographs. our sample consisted of 71 adults patients; class I
(n=21) , class II (n= 30 ) , class III (n=20 ) .All radiographes were
taken in natural head position.
Cephalometric evaluation of the upper air ways to obtain normative
measurements of the upper airway in the Syrians healthy adults.
Subjects included 70 healthy patients,
(age range, 22-24 years) with permanent occlusion on all teeth, class 1 on fi
rst molars and canines,normal
overjet(2-3 mm) and normal overbite(not more than 1\3 buccal surface of the lower central incisor), no
spaces or crowding teeth,Syrian nationality,no prior orthodontic treatment and with no functional
disorders. Thirteen cephalometric airway measurements:the width of nasopharynx, oropharynx,
hypopharynx, vertical pharyngeal length, thickness and length of the soft palate ,relative position of the
hyoid bone, and length and hieght of the tongue, were obtained.
This study aimed to compare the dimensions of soft facial tissues
between the open bite and deep bite malocclusion cases, in
patients with sagittally Class I occlusion.
The aim of this paper is to study the relation between muscles electrical activity and knee movement during walking for patient with patellafemoral pain by measurement both of electromyography (EMG) and changing of knee angle by electro-goniometer. T
he start and end of the gait cycle were determined by foot sensors, A program was designed for signal processing of the data, Testes were carried out at Hamish hospital in Damascus.
Subjects were divided into two groups: 46 normal subjects and 21 patient. Final results also showed that hamstring group activity and galf group activity decreases during stance phase because knee cancel it first flexion with increase in quadriceps femoris activity to keep extension of knee.
In swing phase, it is noted that the decrease in knee flexion and it depends on the increase in quadriceps femoris activity in all the period of swing phase, but hamstring group activity increases to keep hip instability, that is, it responds to increase activity of
quadriceps femoris with less knee flexion. The activity of subject muscles in the period of gait cycle is less than normal muscles.
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..
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