polymerization shrinkage is a small decrease in volume that happens when certain dental resins harden. It occurs as liquid-like monomers join together into a solid polymer network during curing. It is most commonly discussed with tooth-colored resin composite fillings and bonding materials. Clinically, it matters because shrinkage can create stress at the tooth–restoration interface.
depth of cure describes how deeply a dental material becomes adequately hardened after it is cured. It is most often discussed for light-cured resin materials, such as composite fillings, sealants, and bonding resins. In simple terms, it helps answer: “How thick of a layer can be cured reliably?” It matters because uncured or undercured material can perform differently than properly cured material.
radiant exposure is the total light energy delivered to a surface area over a set time. In dentistry, it most commonly describes the “light dose” used to cure (harden) resin-based materials. It is especially relevant when dentists use blue curing lights for tooth-colored fillings, sealants, and bonding. It helps clinicians think beyond “seconds of curing” and focus on whether enough energy reached the material.
An LED curing light is a handheld dental device that shines a specific blue light to harden (“cure”) resin-based dental materials. It is commonly used during tooth-colored fillings, sealants, bonding, and some cementation steps. The light triggers a chemical reaction inside the material so it sets quickly in the mouth. You will most often see it in general dentistry, restorative dentistry, and orthodontics.
A curing light is a dental device that emits focused light to harden certain tooth-colored materials. It is commonly used when placing composite (resin) fillings, sealants, and some bonding agents. The light triggers a chemical reaction inside the material so it sets quickly in the mouth. You will most often see it in general dentistry, pediatric dentistry, and cosmetic procedures.
light curing is a dental technique that uses a curing light to harden certain tooth-colored materials. It is most commonly used with resin-based composites, bonding agents, and sealants. The light triggers a chemical reaction so the material changes from a moldable paste or liquid into a solid. It is widely used for fillings, small repairs, and protective coatings in modern dentistry.
polymerization is a chemical reaction that links small molecules (monomers) into long chains (polymers). In dentistry, it helps turn soft, moldable resin materials into firm, durable restorations. It is commonly used for tooth-colored fillings, sealants, bonding agents, temporary materials, and some denture and orthodontic plastics. It can be started by a curing light, by mixing components, or by a combination of both.
The snowplow technique is a way of placing tooth-colored filling material (composite resin) in a cavity. It typically involves placing a thin layer of flowable composite that is **not cured right away**, then adding a thicker composite on top before curing. It is most commonly discussed for **posterior (back tooth)** restorations where close adaptation to the cavity floor and margins matters. The name describes how the thicker composite “pushes” the uncured flowable layer into small areas, similar to a snowplow moving snow.
oblique increment is a way of placing tooth-colored filling material in angled layers rather than in one large mass. It is most commonly discussed in the context of resin-based composite restorations, especially in back teeth. The goal is to build the restoration in controlled steps that follow the shape of the cavity and tooth. In simple terms, it is a “layering technique” for fillings that uses slanted (oblique) layers.
incremental technique is a method of placing restorative dental material in small portions (increments) rather than in one large mass. It is most commonly discussed in tooth-colored fillings made with resin composite. Each increment is shaped and then hardened (usually with a curing light) before the next layer is added. The plain idea is “build the restoration step-by-step” to improve control, fit, and material performance.