International Conference and Exhibition on Dentistry March 18-20, 2015 Crowne Plaza, Dubai, UAE

Diogo Oliveira Martins has completed his Master degree at the age of 23 years (7/2014) from Dentistry Faculty of Oporto University.

Objective: A literature review to determine the state of the art with regard to antimicrobial ability of adhesive systems
\r\n\r\nMaterials and methods: For this work was performed a literature research for the last 10 years, in Portuguese and English languages, at the research engines: \"Pubmed\" and \"B-on\".
\r\n\r\nDevelopment: The progressive decrease in bond strength occurs due to degradation, hydrolytic and enzymatic, of the hybrid layer. The chlorhexidine is a biguanide with cationic properties. It is a stable, broad spectrum antibacterial molecule at high concentrations and bacteriostatic at low concentrations. Besides its antimicrobial properties, chlorhexidine is a potent inhibitor of MMPs. DMAE-CB is, as MDPB, a monomer composed by combining a methacrylate group, polymerizable, with a quaternary ammonium group, responsible for the antibacterial properties. Those antibacterial monomers have the same principle: Before polymerizing is bactericidal and after polymerization have a bacteriostatic effect by contact.
\r\n\r\nConclusions: Chlorhexidine is able to inhibit bacterial activity in dental treatments. With the advantage of not interfering or even improve the mechanical properties of the interface dentin/adhesive, such as higher microtensile bond strength and lower nanoleakage. Despite the positive results these statements are not completly consensual. The antibacterial monomers MDPB and DMAE-CB are shown to have an important role in the antimicrobial ability of adhesive systems because it maintains this property even after polymerization. Apart from its proven antimicrobial activity, all incorporated agents: Chlorhexidine, MDPB and DMEA-CB; have shown ability to inhibit MMPs.\r\n

Kevin Lopes Oliveira has completed his Master in dentistry from Faculdade de Medicina Dentária da Universidade do Porto. He is a collaborator at Occlusion Department of Faculdade de Medicina Dentária da Universidade do Porto.

Introduction: Male patient, 29 years old and with poor oral hygiene, went to UCMDC in FMDUP for the replacement of Class II MOD amalgam restoration on tooth 46 for aesthetic reasons. Radiographically it could be observed radiolucent image of the tooth tissue and restoration, suggesting the presence of a recurrent carious lesion. Through the pulp susceptibility testing is classified as a reversible injury, and it was therefore chosen a conservative treatment.
\r\n\r\nDiscussion: The current dental restorative materials used in the reconstruction are not only intended to restore form and function, but also long-term aesthetics. When there is a large loss of tooth structure, Inlay and Onlay\'s\'s are widely used in the reconstruction of the tooth and these can be of three types: metal alloys, composites or ceramics. We chose to use a resin inlay: as compared to metal inlays have aesthetic results arguably superior, and compared to ceramic inlays, have a lower price. Since compared to the direct composite restorations have advantages such as greater resistance to wear, better marginal fit, less polymerization shrinkage, greater ease of obtaining proximal contact points due to be performed in extra-oral environment, greater longevity and beyond repair, adjustment and intra-oral polishing.
\r\n\r\nConclusions: Composite resin indirect restorations are an alternative treatment with a high performance clinical long-term, allowing to the clinician an improve of functional and aesthetic qualities, with a shorter chair time.\r\n

Francisco João Marques Maligno da Silva has completed his Master in dentistry at the age of 23 years from Faculdade de Medicina Dentária da Universidade do Porto and posgratuated on Oral Surgery and Implantology from Universidad de Ciencias Médicas Dr. Serafin Ruíz, Cuba. He is a colaborator on Occlusion Department of Faculdade de Medicina Dentária da Universidade do Porto.

Introduction: Dental contacts during mandibular eccentric movements may vary in number, location and from person to person.
Objectives: To study the frequency of contact patterns during laterality and protrusion; to relate if the people who used orthodontic apparatus had interferences during protrusion movement using the Chi Square test.
Methods: It was made an oral examination of 40 people (20 males and 20 females), aged from 14 to 44 years. It was used articulation paper to observe the occlusal patterns.
Results and Conclusions: In laterality movements the pattern “canine protected guide” was the most prevalent. When interference was observed in the working side, it was generally on 16, 17, 26 and 27. Total group function seems to be a rare occlusal pattern on both laterality movements. Teeth 13 and 23 had the higher contact frequency during the laterality movements. In the protrusion, the anterior guide was the most common. The people who didn’t use orthodontic apparatus presented lower prevalence of posterior interferences during protrusion. However there was no significant statistical correlation between the use of orthodontic apparatus and the interferences during protrusion movement.

Agostinho Martins dos Santos finished his Master’s degree at the Faculty of Dental Medicine in the year 2013 and has ever since been working alongside with Associated Professor João Carlos Pinho at the occlusion, TMJ, and orofacial pain department.

The study of the mandibular cinematic has implication on different areas of dental medicine. Movement patterns are dependent on the muscles, temporomandibular joint and associated structures. What is observed in violin players is that they place the mandibula to the side in which they rest the violin to better stabilize it with the shoulder. This position can be harmful to the masticatory muscles and the temporomandibular joint. We idealized and fabricated an intra-oral device capable of providing oclusal stability and muscle tension relief referred by the violin players. Teeth casts from violinists were made as well as a register of intermaxilar relation of their most usual position in which they play violin as well as a facial arc register. The casts were assembled in the Protar articulator (KaVo) and the device was made with the Erko-Loc Pro (Erkodent) 3 mm plates. The device was made, individualized and adjusted with the T-scan device (Teskan) during violin playing. Through a visual scale of confort the musicians reported how much relief they felt with the device and without the device after a week of usage. There was a positive feedback from the musicians as the device stopped reported teeth grinding and provided a relief of facial muscle tension that followed the long hours of violin practice as well as a feeling of having all the teeth contacting as there was achieved contralateral contacts disorders due the improvements in occlusal stability given with contralateral contacts and the relief of facial muscle pain.rn