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Feasibility of reusing orthodontic bands after trial in the mouth - Control of cross infection. - Helena Rodrigues; Maria João Ponces; M. Henriques; Pedro Mesquita; Jorge Lopes
AIM: To evaluate the effectiveness of two methods of sterilization and disinfection of orthodontic bands, after use in the mouth. Simultaneously, the protocol of the Department of Orthodontics, Dental Faculty, Oporto University (DO-DFOU) was tested.
MATERIALS AND METHOD: Thirty-five orthodontic bands were placed on the first molars of 10 individuals. They were removed from the mouth and five were separated for the positive control. The remaining 30 bands were immersed in an ultrasonic bath with disinfectant (Elusept®) for 15 minutes and then divided into three groups. The first served as disinfection control, the second and third were subjected to additional sterilization...
MOUTHGUARD FOR ORTHODONTIC PATIENT TRUMPET PLAYER - Maria João Ponces; Saúl Matos Castro; Maria Cristina Pollmann; Paula Vaz; Jorge Lopes
Mouthguards reduce the occurrence and the severity of damages on intraoral tissues absorbing and diffusing the energy of the impact. The brass instruments, also known as 'lip-vibrated instruments, are played by propelling air through sealed lips. The pressure applied on the lips can cause damage and bruising. The use of mouthguards can prevent those injuries producing some relief on orthodontics patients playing those instruments. The aim of this work was to describe the procedures to construct a custom mouthguard for orthodontic patient trumpet player (MOPTP) that prevents injuries on soft tissues while it allows simultaneously orthodontic tooth movement and a...
A clinical study of condylar position of three biotypological facial groups. - Maria João Ponces; Afonso Pinhão Ferreira; José Pedro Tavares; Paula Vaz; Jorge Lopes
Objectives: Orthodontic diagnosis and treatment related to the orthopaedic position of centric relation (CR) requires a comprehensive study of the condylar position (Roth, 1981; Cordray, 2006). According to the craniofacial architecture, the hyperdivergent facial type seems to be more prone to condyle displacement than other facial groups. Therefore, it was put into hypothesis that it is on the hyperdivergent type that the centric slide (CS) is more frequent and wider. This work intended to investigate and compare CS on an hyperdivergent, an hypodivergent and an intermediate group.
Materials and methods: The displacement from CR to centric occlusion (CO) namely CS...