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Hot topic session - dental materials

Junji Tagami (Japan)
Salvatore Sauro (Spain)
Nelson Silva (Brazil


Time: 09:00 – 11:30
Room: PICASSO (South Convention Center)
Language: English
Chair(s): Manuel Toledano (Spain)
CERP: 2.5

The implementation of the Global Periodontal Health Project was set in motion this year to prioritize periodontal health at a national level through health promotion and disease prevention, and to integrate oral and periodontal health into policies addressing noncommunicable diseases (NCDs).This year’sWorld Oral Health Forum (WOHF) during theWorld Dental Congress in Madrid will take an in-depth look into the issue.

IS BULKFILL COMPOSITE RELIABLE?
Junji Tagami (Japan)

Learning Objectives

  • > Understanding the properties of bulkfill composite
  • > Understanding the mechanism of gap formation
  • > How to apply gap free filling

Abstract

Bulkfill composite is used in clinic, however, its efficacy has not been appropriately analysed. Optical coherence tomography (OCT), that provides non-invasive real-time observation of the inside of the tooth and restoration, clearly indicated the gap formation when most of the so-called bulkfill composites are filled into the cavity with 4mm depth      as bulk. Even when the gap is not propagated, the fracture in the composite resin and internal stress in the composite  are concerned. To prevent gap formation at the cavity floor, layering and incremental filling technique is still required.
THE LONGEVITY OF RESIN-DENTINE INTERFACES CREATED WITH SIMPLIFIED OR MULTI-STEP ADHESIVES
Salvatore Sauro (Spain)

Learning Objectives

  • > Describe the degradation processes within the resin-dentine interface
  • > Outline the chemistry of multi-step and simplified adhesives
  • > Tips and tricks in adhesive application to improve durability of dentine and enamel

Abstract

The issue of bond durability has dominated most current research in both resin-enamel and resin-dentin bonding. Because bonds made to enamel are regarded as reliable, most of the attention has been devoted to understanding why bonding to dentin does not match the durability of its nearby hard tissue. Despite of the advances in bonding knowledge, several factors are still responsible for degradation of the resin-dentine interface. These include the heterogeneity of the structure and composition of dentine, the dentine surface characteristics, chemical treatments, bond strategy and physicochemical properties of the adhesives, among other variables. Most of the current knowledge of bonded interfaces originated from laboratory studies. The question as to whether these laboratory outcomes are somehow related or can be predictive of clinical performance remains dubious, as most of the attempts to correlate laboratory and clinical data are inconclusive.

CAD CAM 360O: MATERIAL PERFORMANCE
Nelson Silva (Brazil)

Learning Objectives

  • > Materials for CAD CAM
  • > Mechanical performance of materials
  • > Cementation aspects

Abstract

This presentation will address the importance of the development of optimized biomaterials for dentistry and how it influences the treatment decision focusing on digital dental technology. The development of these materials has led us to explore other treatment work-flow modalities that associates milling and printing concepts using ceramics, polymers, wax and/or alloys.

Next Event

FDI 2017
29 August - 1 Septembre 2017
Madrid, Spain

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