The purpose of this study was to evaluate the skeletal and dentoalveolar changes occurring during two-phase orthodontic treatment. A cephalometric study of Class II correction was carried out in 40 subjects (20 females, 20 males) who had been treated with the acrylic-splint Herbst appliance immediately followed by a second phase of preadjusted edgewise therapy. The average age at the start of H...

Multivariate models with multiple linear regression (MLR), artificial neural network (ANN), and k-nearest neighbors (KNN) were developed to predict the modulus of rupture Pinus sylvestris structural timber. The aim this study was develop compare these obtained from resonance ultrasound tests, static elasticity different measured wood feature. Resonance tests performed in three vibration modes (...

We herein report on the formation and high-resolution NMR solution-state structure determination of a G-quadruplex adopted by d[G(3)ATG(3)ACACAG(4)ACG(3)] comprised of four G-tracts with the third one consisting of four guanines that are intervened with non-G streches of different lengths. A single intramolecular antiparallel (3+1) G-quadruplex exhibits three stacked G-quartets connected with p...

A Brazilian girl aged 14 years and 9 months presented with a chief complaint of protrusive teeth. She had a convex facial profile, extreme overjet, deep bite, lack of passive lip seal, acute nasolabial angle, and retrognathic mandible. Intraorally, she showed maxillary diastemas, slight mandibular incisor crowding, a small maxillary arch, 13-mm overjet, and 4-mm overbite. After the diagnosis of...

Background: Bodily alignment of teeth that are blocked out of the arch such as a lingually placed lateral incisor, is often time consuming and difficult. Though several treatment methods are available for accomplishing this, these approaches have some drawbacks. Aim: To describe how Mollenhauer aligning auxiliary (MAA) can be adapted to bodily align lingually blocked-out lateral incisors in pre...

objective: the purpose of this study was to evaluate the dental movements of the labial segment and the canines during leveling and alignment using pre-adjusted appliances and light forces with the mbt technique. the effect of lacebacks on the horizontal movement of the first molars was also assessed. materials and methods: fourteen patients with a mean age of 14.08 years were selected for this...

Non-destructive testing was used to predict the static modulus of elasticity (MOES) Scots pine (Pinus sylvestris) timber from northeast Spain. Three vibration tests were performed, longitudinal, flatwise and edgewise, obtain dynamic (MOEdyn) based on fundamental resonant frequencies. The MOEdyn additionally obtained ultrasound tests. Measurements different features performed various samples, wh...

Imprecision in treatment response has been defined as inconsistent unpredictable results from the same treatment. Bias has been defined as systematic failure to achieve defined treatment goals. Concepts of imprecision and bias are applied to the results of a study of soft-tissue response to Class II treatment with edgewise and Herbst appliances.