https://hdl.handle.net/10216/5642 2026-07-10T14:35:45Z 2026-07-10T14:35:45Z https://hdl.handle.net/10216/158803 2024-05-28T06:19:01Z 2023-01-01T00:00:00Z

Title: Initial surface roughness influence on the generation of LIPSS on titanium and stainless steel and their effect on cell/bacteria viability

2023-01-01T00:00:00Z https://hdl.handle.net/10216/99761 2022-10-19T09:18:24Z 2004-01-01T00:00:00Z

Title: Auto-eficácia académica: definição conceptual e recomendações metodológicas para a construção de instrumentos de avaliação

2004-01-01T00:00:00Z https://hdl.handle.net/10216/74335 2022-10-19T09:51:09Z 2012-01-01T00:00:00Z

Title: Force and Moment: Force Ratio of Orthodontic Loops

2012-01-01T00:00:00Z https://hdl.handle.net/10216/67933 2022-10-12T11:17:06Z 2012-01-01T00:00:00Z

Title: Condylar displacement on three different biotypological facial groups Abstract: This work intended to investigate centric slide (CS) on different facial skeletal groups. With this aim in mind, three different groups hyperdivergent, hipodivergent and an intermediate one were studied and compared. The tests performed allowed to identify a statistically more significant vertical displacement in hyperdivergent group while the sagittal displacement was more pronounced in hypodivergent group with a relative level of significance. Regardless of the facial type, vertical displacements were more marked than sagittal. The results allow concluding that CS is independent of facial types and that in the special case of hyperdivergent it should be carefully evaluated and considered in the study of clinical cases.

2012-01-01T00:00:00Z https://hdl.handle.net/10216/57221 2022-10-14T15:55:27Z 2011-01-01T00:00:00Z

Title: Sports related oro-facial injuries: which kind of mouthguard will be the most suitable to play safe?

2011-01-01T00:00:00Z https://hdl.handle.net/10216/78363 2022-10-12T12:14:15Z 2013-01-01T00:00:00Z

Title: Retrospective evaluation of therapeutic outcomes of functional appliances combined with headgear Abstract: Functional appliances were developed to correct mainly Class II malocclusions in growing children but the influence of those appliances on craniofacial growth is still controversial, even when used in combinations with headgear. The aim of this retrospective study was to investigate skeletal, dental and tegumental cephalometric modifications induced by Teuscher activator. This study was accomplished in a mixed dentition sample of Class II malocclusions subjects with mandibular retrognatism. This appliance was effective in treating growing patients with mandibular deficiency: the correction of Class II malocclusions was an arrangement of skeletal and dentoalveolar changes and leaded to the improvement of soft tissue facial profile.

2013-01-01T00:00:00Z https://hdl.handle.net/10216/111833 2022-09-07T18:36:27Z 2017-06-11T00:00:00Z

Title: THERMOGRAPHY: DIFFERENT PERSPECTIVES AND APPLICATIONS IN ENGINEERING, DENTAL MEDICINE AND FINE ARTS Abstract: This work presents the potential of thermography in three different areas: engineering, dental medicine and painting. It is intended to show the extent of use of this tool by highlighting three different universes in which thermography can be used. The first approach shows how the technology is built and its functions, the second describes how it can be applied, and the third explores how it can be interpreted.

2017-06-11T00:00:00Z https://hdl.handle.net/10216/74047 2019-06-05T13:57:33Z 2014-01-01T00:00:00Z

Title: Study of extraoral force delivery systems using holographic techniques Abstract: Extraoral traction is still one of the most reliable methods used during active orthodontic period especially in growingpatients [1]. It is a practical and cost-effective method for attaining extra anchorage in a variety of treatment situationsand it can be used either with orthodontic or orthopaedic purposes [2-3]. It is imperative for the clinician to consider thequality of the force systems, taking into account the degradation of its components, due to loss of elastic memory andmaterial fatigue. Thus it is utterly important to understand the characteristics and mechanical behaviour of the extra oraldevice elements.This investigation intended to compare extraoral force delivery systems through the study of the mechanical behaviourof the plastic strap component. For this study two methods were chosen, a non-experimental technique, Finite ElementAnalysis (FEA), and an experimental technique ESPI. Two different manufacturers of extraoral traction systems wereselected based on their market price, one of them being significantly more expensive than the other. The assessment ofthis data may validate the choice criteria between these two market options.

2014-01-01T00:00:00Z https://hdl.handle.net/10216/84878 2019-06-05T13:57:31Z 2013-01-01T00:00:00Z

Title: Mouthguard for Orthodontic Patient Trumpet Player Abstract: 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 good musical performance.

2013-01-01T00:00:00Z https://hdl.handle.net/10216/102236 2019-06-05T13:57:29Z 2008-01-01T00:00:00Z

Title: Papel das concepções pessoais de competência na realização escolar: análise do impacto do nível sócio-económico com modelos de equações estruturais

2008-01-01T00:00:00Z https://hdl.handle.net/10216/92525 2019-06-05T13:57:27Z 2005-01-01T00:00:00Z

Title: Questionário de atribuições e dimensões causais (QADC): análises factoriais exploratórias e diferenças entre 9º e 10º anos

2005-01-01T00:00:00Z