Dental Composites Overview Quiz

A combination of two or more different materials with distinct properties, where the resulting material possesses improved characteristics compared to the individual components.

The organic component in dental composites that provides the binding and shaping ability.

The inorganic particles embedded in the resin matrix, providing strength and durability.

A chemical that binds the filler particles to the resin matrix, promoting strong adhesion.

Chemicals that trigger the hardening process of the composite resin, turning it from a paste to solid.

Substances added to prevent the composite from hardening prematurely before it's applied to the tooth.

Composites that harden by mixing two pastes, one containing the resin matrix and filler particles, and the other containing the initiator.

Large filler particles typically found in earlier composites, measuring up to 100 μm in diameter.

A type of composite that hardens when two pastes are mixed. One paste contains the resin and filler particles, and the other contains the initiator.

A category of composites with filler particles ranging from 10 to 50 μm. They are susceptible to staining and challenging to polish.

A category of composites with filler particles ranging from 1 to 10 μm. They represent an improvement over macrofilled composites by having smaller filler particles.

A category of composites with filler particles measuring between 0.1 to 1 μm. They provide better polish and esthetics compared to larger particle composites.

Composites that harden by exposure to UV light, typically in the range of 360 to 400 nm.

A type of composite that uses visible light, in the blue range, to initiate the hardening process.

Composites that use a combination of chemical and light activation to harden. They are commonly used in core build-ups or cementation.

Composites that are cured by heating in an oven. They are often used for indirect restorations.

A strategy used for microfilled composites where pre-cured composite particles are blended with uncured material. The pre-cured particles bond chemically for increased strength.

A method to overcome viscosity challenges in microfilled composites. Small particles are sintered (heated) together to create larger, porous particles that are then filled with monomer and added to the composite.

A potential issue in microfilled composites where the boundary between the resin matrix and the prepolymerized filler is weak. This can cause filler loss and reduced strength.

Composites introduced in the early 1980s, combining both macrofillers (larger particles) and microfillers (smaller particles). This combination enhances strength, wear resistance, and aesthetics.

Hybrid composites that contain smaller macrofiller particles (typically 1-5 μm) for improved properties and a smoother finish.

Hybrid composites that contain even smaller macrofiller particles (0.6-1 μm) for exceptional smoothness and wear resistance.

Hybrid composites are often considered ideal due to their combination of strength, ease of polishing, and wear resistance. They offer a good balance of properties compared to pure microfilled or macrofilled composites.

Nanofilled resin composites are less transparent than conventional composites due to their ability to scatter light in the visible spectrum.

They are not detectable by refractive index because their size is smaller than the wavelength of visible light.

Nanofilled composites contain various fillers like silica/zirconia nanoparticles, microfiller glass/zirconia/silica particles, prepolymerized resin fillers, and nanoclusters.

The presence of nano-sized fillers in a resin matrix helps reduce the composite's shrinkage during polymerization.

The reduced viscosity of the resin matrix enables higher filler loading, leading to enhanced mechanical properties in the finished composite.

During wear, nanoclusters wear by breaking off individual nanoparticles rather than being plucked out, resulting in smoother wear surfaces and better gloss retention.

The rounded shape of the nanoclusters helps distribute stress more evenly throughout the composite, contributing to better sculptability and handling characteristics.

Nanofilled composites, like Filtek Z 250 XT, offer improved clinical performance due to their enhanced polishability, wear resistance, reduced shrinkage, increased fracture resistance, and reduced viscosity.

A type of composite resin designed for simplified placement and deep curing, often utilizing larger filler particles, optimized photoinitiators, or polymerization modulators to ensure adequate cure depth even under challenging conditions.

A photoinitiator containing germanium that promotes deep polymerization and greater conversion, often used in bulk-fill composites like Tetric EvoCeram Bulk-Fill.

A technique that involves using special additives in the composite and sonic energy to reduce viscosity during placement, making it flowable and adaptable. Once energy is removed, viscosity increases, allowing for shaping and sculpting.

A component in some bulk-fill composites that undergoes photo-cleavage under light exposure, generating free radicals which contribute to deeper polymerization and crosslinking.

A specific type of polymerization modulator that undergoes bond breakage and reformation under light exposure, promoting deeper conversion in bulk-fill composites like Filtek Bulk-Fill.

A type of bulk-fill composite resin that can be applied in one step, utilizing a combination of high filler content, optimized photoinitiators, and sometimes a cap of more highly filled composite for greater wear resistance.

A type of composite resin that uses a special handpiece to apply sonic energy, resulting in a change in viscosity, making placement easier and adaptable to complex cavity shapes.

A type of composite resin that utilizes a combination of sonic energy and traditional light curing to achieve both flowability during placement and strong, durable restorations.

A type of composite resin that utilizes "Rapid Amplified Photopolymerization (RAP) Technology" for a faster curing process. It requires only two layers (body and enamel) offering excellent blending, translucency & gloss.

A unique type of composite that uses a single shade & relies on reflecting the underlying tooth color to achieve a natural match. It utilizes spherical fillers for optimal shade matching.

A composite that incorporates "S-PRG" (surface pre-reacted glass), providing fluoride release and potential for remineralization.

A technique that utilizes two layers of a single composite to achieve optimal aesthetic results, eliminating the need for additional shades.

A composite that aims to mimic the color of the underlying tooth structure, utilizing its reflected light to achieve a natural match.

The process of using a material like composite resin to build up a missing portion of a tooth, restoring its form and function.

The process of using composite resin material to mask the darkness of the oral cavity, specifically in situations where the background is missing.

These composites are designed to offer a better biocompatibility and potential for remineralization, they are often used for cavities or tooth repairs; they are a blend of resin composites and glass ionomers.