a comparative study of dentoskeletal changes following orthodontic treatment with first premolar extraction in long face and normal patients
Authors
abstract
introduction: the purpose of this study was to evaluate vertical facial and dental changes after orthodontic treatment with extraction of first four premolars, and to find whether long facial height could influence the treatment result. methods: fifty-six orthodontic patients with the minimum age of 15, whose treatment plan involved extracting four first premolars, participated in the study. the patients included 30 females and 27 males. cephalometric measurements before and after treatment were compared using a paired t-test. independent t-test was employed to compare post treatment changes for each parameter between normal and long face groups. the same analysis performed between male and female subjects. results: treatment changes revealed a significant increase in the vertical distance from the upper molar to palatal plane, the lower molar to mandibular plane and menton to palatal plane in all groups. there was significantly more increase in most post-treatment linear measurements in males than in females, with the same direction in both genders. there were no significant differences between normal and long face in any measurement. conclusion: all patients showed some extrusion of the molar teeth after extraction of the premolars. the difference between normal and long face groups was not significant.
similar resources
A Comparative Study of Dentoskeletal Changes Following Orthodontic Treatment with First Premolar Extraction in Long Face and Normal Patients
Introduction: The purpose of this study was to evaluate vertical facial and dental changes after orthodontic treatment with extraction of first four premolars, and to find whether long facial height could influence the treatment result. Methods: Fifty-six orthodontic patients with the minimum age of 15, whose treatment plan involved extracting four first premolars, participated in the study. Th...
full textArch dimensional changes following orthodontic treatment with extraction of four first premolars
BACKGROUND AND AIM: Tooth extraction as a part of orthodontic treatment plan to create space for leveling and aligning teeth or causing tooth movement leads to changes in arch width and length. The outcome of these changes is important for the clinicians and affects the treatment and retention plans. Despite some previous studies, data in this regard are still scarce and further investigation i...
full textDimensional changes of dental arch following non-extraction orthodontic treatment
Introduction: Since the emergence of normal occlusion concept, selecting an appropriate treatment plan with or without tooth extraction has been a controversial subject. Nowadays, both methods can be successfully used for treatment of patients. However, some clinicians still believe that non-extraction orthodontic treatments have fewer complications. The purpose of this study was to evaluate de...
full texttragic contradictions: a comparative study of characterization in eugene o’neill’s long day’s journey into night and mahmud dowlatabadi’s tangna
در طی چند دهه ی اخیر، مفهوم «تراژدی» و «قهرمان تراژدی» توجهی روزافرون را تقریباً در تمام حوزه های نقد ادبی به خود معطوف کرده است. برخی نظیر ارسطو، نیچه، و آرتور میلر به بازخوانی آن پرداخته و برخی دیگر نظیر سارتر، استریندبرگ، یوجین اُنیل، برتولت برشت، و آنتونین آرتود به افزودن ابعاد نوینی به این مبحث همت گماشته اند. آنچه قهرمان تراژدی مدرن را از مفهوم کلاسیک آن متمایز می کند نه لغزش تراژیک متداول ...
Changes of occlusal plane inclination after orthodontic treatment with and without extraction in Class II patients
Introduction: The inclination of the occlusal plane (OP) is related to type of dental occlusion. The aim of this study was to evaluate and compare the inclination of occlusal plane in Class II patients treated with the upper first premolars extraction or non-extraction modalities. Materials & Methods: Totally, forty 16-25-year-old patients (15 males and 25 females) with class II malocclusion, ...
full textThe effect of fixed orthodontic treatment with first premolar extraction on mandibular third molars angulation and retromolar space
Introduction: In most orthodontic patients, mandibular 3rd molars are in early stages of calcification, and prediction of eruption status would be difficult during the course of orthodontic treatment. The aim of this study was to evaluate the effect of first premolar extraction with moderate anchorage on angular changes of third mandibular molar after orthodontic treatment. Materials & Methods...
full textMy Resources
Save resource for easier access later
Journal title:
journal of dental materials and techniquesجلد ۱، شماره ۲، صفحات ۶۳-۶۹
Keywords
Hosted on Doprax cloud platform doprax.com
copyright © 2015-2023