PURPOSE The purpose of this study was to measure the anteroinferior changes and the degree of vertical changes to facilitate the prediction of treatment outcome in patients undergoing genioplasty only, genioplasty with bilateral sagittal split ramus osteotomy (BSSRO), genioplasty, or BSSRO and Lefort I osteotomy. MATERIALS AND METHODS Serial cephalometry was performed on 25 patients at 1-year...

Locating special points of interest, known as landmarks, on X-rays of human heads is a time consuming manual process in the medical field known as cephalometry. We automate this task using the evolutionary computing approach of particle swarm optimisation (PSO). Particularly, we represent several existing programming solutions produced by genetic programming as linear function optimisation task...

Early treatment of palatally erupting maxillary canines by extraction of the primary canines Sune Ericson and Juri Kurol 283 Histologic reactions in gingival and alveolar tissues during tooth movement in rabbits 309 An experimental investigation into the effect of dimensional change on the stiffness of double vertical incisor alignment loops I. D. Brown 319 Long-term results of orthodontic trea...

Measuring a cephalometric radiograph is an imprecise task, and the errors associated with this should be quantified and understood. The potential sources of error are outlined and the literature relating to the assessment of measurement errors is reviewed. Three techniques are examined: the error attributable to a single recording; its associated confidence limits; and the coefficient of reliab...

The variability of the craniofacial skeleton of the juvenile Macaca mulatta was studied from lateral radiographic cephalograms of twenty-three animals, using a previously described method based on fourteen lines depicting certain anatomic features. The findings, when compared to corresponding human data, revealed that a number of angular relationships are similar in this monkey and in human ch...

In this paper, we propose a machine learning based algorithm for the Automatic Cephalometric X-Ray Landmark Detection Challenge. We use Extremely Randomized Forests combined with simple pixel-based multiresolution features. Using 10-fold cross validation, detection rate for some landmarks is reaching 96% under 2.5mm. Results show high variability between the different landmarks: some landmarks ...

We present the comparison of two control criteria for the real-time management of a water well field. The criteria were used to simulate the operation of the Hardhof well field in the city of Zurich, Switzerland. This well field is threatened by diffuse pollution in the subsurface of the surrounding city area. The risk of attracting pollutants is higher if the pumping rates in four horizontal w...

Craniofacial superimposition is the second stage of a complex forensic technique that aims to identify a missing person from a photograph (or video shot) and the skull found. This specific task is devoted to find the most appropriate pose of the skull model to be projected onto the photograph. The process is guided by a number of landmarks identified both in the skull (craniometric landmarks) a...

Sleep disordered breathing (SDB) is a disease characterized by repeated hypopnea and apnea during sleep due to complete or partial obstruction of upper airway. The prevalence pediatric SDB approximately 12 - 15%, the most common age group preschool children aged 3 5 years. Children show more varied presentations, from snoring frequent arousals enuresis hyperactivity. main cause airway related e...