Force decay evaluation of latex and non-latex orthodontic intraoral elastics: in vivo study.

Objective: This clinical study was conducted in order to evaluate force decay over time of latex and non-latex orthodontic intraoral elastics.

Methods: Patients (n = 15) were evaluated using latex and non-latex elastics in the periods of : 0, 1, 3, 12 and 24 hours. The rubber bands were transferred to the testing machine (EMIC DL-500 MF), and force values were recorded after stretching the elastic to a length of 25mm.

Craniofacial characteristics of patients with heart disease.

Introduction: Children with congenital heart disease commonly experience delayed growth. Studies comparing growth and development of these children generally found that they have decreased height and weight, but with no information on craniofacial growth. The aim of this study was to evaluate the craniofacial characteristics of patients with heart disease.