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Register a new userSoft-tissue Profile Changes Produced by Treatment of Class II- Malocclusion Using Skeletal Anchorage Miniplates “A Prospective Comparative study”
تغيرات بروفيل الأنسجة اللينة الناجمة عن معالجة الصنف الّثاني باستخدام صفيحات الإرساء الهيكلي (دراسة تطلعية مقارنة)
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يتطلب نجاح المعالجة التقويمية تحقيق الكمال الجمالي و الوظيفي للمركب القحفي الوجهي، هدف البحث الحالي إلى دراسة تغيرات بروفيل الأنسجة اللينة الناجمة عن معالجة الصنف الّثاني الهيكلي باستخدام الشد المطاطي المعتمد على صفيحات الإرساء الهيكلي، و ذلك مقارنة بالتغيرات الناجمة عن استخدام الشد المطاطي العادي - صنف ثانٍ-.
Orthodontic treatment is considered successful only if optimal esthetic and function are achieved.The objective of this study was to compare facial soft tissue profile changes produced by a new technique (elastic forces based on skeletal anchorage mini-plates) with changes produced by conventional class-II elastic forces.
References used
Peck S, Peck L. Selected aspects of the art and science of facial esthetics. Seminars in Orthodontics. 1995 ; 1 : 105 – 126
Tsang ST., McFadden LR., Wiltshire WA., Pershad N, and Bakere AB. Profile changes in orthodontic patients treated with mandibular advancement surgery. Am J Orthod Dentofacial Orthop 2009; 135:66-72
Vig KW, Weyant R, O’Brien K, Bennett E. Developing outcome measures in orthodontics that refl ect patient and provider values. Seminars in Orthodontics.1999 ; 5 : 85 – 95
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The purpose of this study was to evaluate the esthetic changes
following functional and camouflage treatment in Class II Division 1
malocclusion patients.
Methods: cephalograms of 35 patients had Class II Division 1were selected.
Those in group 1
(n=15) were treated with functional appliance, and those in
group 2 (n= 20) were treated with fixed orthodontic appliance after
premolar extractions. 35 cephalometric variables were selected to evaluate
the esthetic changes following the orthodontic treatment.
Dependent t tests were used to compare the cephalometric variables at the
posttreatment stage and the cephalometric variables at the pretreatment
stage in each group, and Independent t tests were used to compare the
changes in cephalometric variables caused by the orthodontic treatment
between the groups.
Distalizition of the upper first Molar is a common treatment modality and
very important method to correct Distal Malocclusion, or to create Spaces
in the upper arch.
The Distal Jet has recently been proposed to distalize maxillary molars in
Class II cases with no need for patient cooperation.
to evaluate the immediate craniofacial vertical changes associated with the
maxillary advancement by using zygoma anchored external distraction osteogenesis device regarding to
Prn height , Vl height and, Pog` height .
Class II malocclusion is a common clinical problem among white Caucasian population and its transverse component is a critical aspect of a functional and stable occlusion. The size and shape of the arches have considerable implications in orthodontic
diagnosis and treatment planning, affecting the space available, dental esthetics, and stability of the dentition. Hence , it is important to study the alveolar arch width in this group of patients using the wide possibilities of cone beam computed tomography of evaluating real anatomy , true-to-scale images without distortions or superimpositions, and the selection of the desired sections.Objective:To evaluate the width of maxillary and mandibular alveolar arches in skelatal Class II adults compared to skeletal class I using cone beam computed tomography. Materials and methods: thirty-two subjects with skeletal Class II relationship and 10 subjects with skeletal Class I who were ordinary undergoing CBCT scan for non-orthodontics nor for otorihnolaryngology purpose were selected to measure the maxillary and mandibular alveolar width of first premolar and first molars.Independent samples’ t-test was calculated. Results:No statistically significant differences were found of alveolar widths between skeletal Class II and Class I subjects in both maxillary and mandibular widths of molar and premolar regions. Gender had no statistically significant effect in the results of the study. Conclusion :There is no differences in alveolar width between adults with skeletal Class II and Class I relationships, so the transverse discrepancy in skeletal Class II when exsists , it is more probably not originated from the alveolar base.
The purpose of this comparative study was to evaluate the correlation between
two radiographic methods used to evaluate skeletal maturation, hand-wrist analysis method and cervical
vertebrae analysis method.
Within the limits of this study, the ce
rvical vertebrae maturation method might mislead the
clinician when treating adolescent skeletal Class II patients at the pubertal growth spurt since it is not
correlated with hand wrist skeletal maturation method.
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