C hapter 1 WHAT ARE DENTAL COMPOSITES?
Introduction and Index
Composites are among the most widely used materials in restorative dentistry. The popularity of composite fillings has increased sharply in recent years as patients increasingly demand esthetic solutions to maintain a pleasant smile. Numerous types of composites with different characteristics and uses have appeared on the market to meet the specific needs of each patient. When a user chooses composite brands that are practical for daily use, personal preference is one of the most important factors, but there are more variables to consider to find the right material. With more dental composites available than ever before, this guide is designed to help you find the perfect materials to meet your needs. Log in to your account at Cliniclands or register as a new customer to profit from our large assortment of products and favorable pricing. Log in to your account here: www.cliniclands.dk Click to register as a new customer here: www.cliniclands.dk/register
Dental composites are synthetic, hydrophobic materials that combine a polymeric matrix with a dispersion of glass, mineral, or resin fill particles, a coupling factor, and an initiator. They are primarily used to restore tooth structure lost due to trauma, caries or other diseases. Composites are also used as cement for crowns, bridges and orthodontic facilities. Composites are classified as either chemically activated (self-curing) resins or as photochemically activated (light-curing) resins.
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Distinction and Classification of Dental Composites
01 W hat are D ental C omposites ? ������������������������������������������������������� 3 02 U niversal C omposites �������������������������������������������������������������������� 6 03 E sthetic C omposites ��������������������������������������������������������������������� 13 04 P osterior C omposites ������������������������������������������������������������������ 18 05 B ulk F ill C omposites ������������������������������������������������������������������ 20 06 B iocompatible C omposites ����������������������������������������������������������� 23 07 B ioactive C omposites ������������������������������������������������������������������ 24 08 F lowable C omposites ������������������������������������������������������������������ 25 09 O rthodontic C omposites ������������������������������������������������������������� 29 10 S pecial A pplication C omposite ���������������������������������������������������� 30 11 P olymerization ��������������������������������������������������������������������������� 32 12 P olishing ����������������������������������������������������������������������������������� 34
Micro-filled Composites Micro-filled composites contain very small filler particles (40–50 nm). This makes them easy to polish and esthetically beautiful. However, the disadvantage is they are not very strong or durable; therefore, they are not recommended for the restoration of posterior teeth.. Macro-filled Composites Macro-filled composites contain large particles, which make the material very strong and durable. Unfortunately, this compound is not suitable for finishing and polishing. Its finish is not esthetic, which is undesirable for the restoration of anterior teeth. Hybrid (universal) Composites Hybrid or micro-hybrid composites contain a mixture of small particles (0.6–1 micron + microfiller), and combine the strength of macro-filled composites with the esthetics of micro-filled composites. Thus, the material is suitable for both anterior and posterior teeth. Nanocomposites Nanocomposites or Nano-hybrid composites consist of particles of less than 100 nm in size. They contain nanoparticles that cluster together to form a larger filler rate. These clusters provide the right strength and opacity; they are highly polishable and offer excellent gloss retention. Currently, nanocomposites are the most widely used. They are popular because their material meets all the requirements for esthetics and wear resistance. They are easy to shape in the anterior teeth, and they are strong enough for the posterior teeth.
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PRACTICAL GUIDE COMPOSITE
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