Introduction: Angle Class II division 1 patients with a large ANB and severe discrepancies arefrequently found in the Japanese population. In such severe Class II patients, it is difficult to improve theprotrusive profile with only premolar extraction. Additional first-molar extraction (AFME) is aprocedure that can be done after premolar extraction space closure for patients who hav...

Introduction: This retrospective study aimed to determine skeletal and dental changes after a growth spurt shortly treatment using facemask in Class III malocclusion with maxillary deficiency. Methods: We retrospectively studied 50 patients (25 per group) who underwent tooth-anchored (T-A, mean age 7.92) miniscrew-anchored (M-A, 9.84) intraoral appliances. In both groups, the applied traction f...

یکی از عوامل محرک برای ایجاد جریان محوری درون روتور سانتریفیوژ به منظور افزایش عملکرد جداسازی، اسکوپ است. با توجه قرار گرفتن در معرض گاز ماخ بالا، دچار شوک شده و گرادیان‌های شدیدی اتفاق خواهد افتاد. این پژوهش اطراف حالت دوبعدی (r-θ) روش شبیه­سازی مستقیم مونت‌کارلو (DSMC) استفاده حل­گر dsmcFoam فواصل مختلف دیواره شبیه‌سازی نتایج نشان می‌دهد که فاصله کاهش زاویه برخورد اسکوپ، سبب بیشینه دما نیروی ...

OBJETIVO: avaliar por meio da cefalometria radiográfica, o comportamento dos pontos A e B em pacientes com maloclusão classe II, divisão 1 (Angle) submetidos à correção ortodôntica. METODOLOGIA: Trata-se de estudo longitudinal prospectivo. Foram avaliadas as telerradiografias cefalométricas laterais iniciais após tratamento ortodôntico 46 na faixa etária 11 a 15 anos, portadores Angle, ângulo A...

A database of North American harvesting systems was developed. Parameters for each.system included site, material and productron rate. Onto-truck and deliverea roduct characteristics equi ment mix and costs prices were developed using standard costing me over the ran i% er green ton&, anB ods. breakeven oil es H Systems costs were compared of piece size, volume per unit area removed, capital/la...

OBJECTIVES The aim of this study was to evaluate the association between tooth agenesis and skeletal malocclusions in Brazilian non-syndromic orthodontic patients. MATERIAL AND METHODS Pretreatment orthodontic records of 348 patients of both genders and with various skeletal malocclusions were examined. Tooth agenesis was evaluated in panoramic radiographs. Angular measurements were taken fro...

There are increasing needs to reduce the transformer noise recently in China because some residential buildings developed recently are located more and more close to the pre-existing substations. Passive barriers are often used around the outdoor transformers to block the noise. However, the noise reduction performance of the barriers is poor in low frequency range, especially when the noise wa...

Background: Malocclusion can present itself in numerous ways. It is present in every society, but the norms and pattern vary. In order to correct occlusal disharmony, it is imperative to identify its pattern in the population so that proper resources can be directed toward its diagnosis and treatment planning. The aim of this study was to determine of skeletal and dental malocclusion in a sampl...

Objective: To determine the distribution of different skeletal pattern in orthodontic patients visiting a tertiary center in midwestern Nepal. Materials & Method: A sample of 200 lateral cephalograms of Nepali patients visiting UCMS-College of Dental Surgery, Bhairahawa was obtained. The jaw base relationship was assessed from lateral cephalograms using angular measurement (ANB angle). Among th...