Laurence is a copywriter and trained journalist. His passion is creating insightful and educational content for dental professionals of every level. Outside of work, he enjoys watching sport, quizzing and spending time with his family.
What Is Dental Cement?
Dental cement is used to connect a fixed prosthesis, such as a crown or bridge, to the underlying tooth structure. It can also be used as a pulp-protecting agent, cavity-lining material or temporary filling. Most dental cements come as a powder which is mixed with water to form a viscous liquid. Modern cements, such as glass ionomer cement, also come in capsule form which is mixed in a special machine. Dental cements can be classified as either permanent or temporary. Permanent cement is used to permanently attach a prosthesis. Temporary dental cement is used between appointments mainly for evaluation purposes.
Resin cement
Resin cement offers the best compressive strength of all dental cements. It comes in light cure (requires a curing light to set), chemical cure and dual cure (can be light cured but can also chemically cure). Some resin cements are self-adhesive, meaning they can be applied directly to the tooth. Other resin cements have no chemical bond and require additives.
Composition
Resin cements are largely composed of a resin matrix and filler or fine inorganic particles (20-80%). It is available as a two-paste system, powder and liquid or in capsules.
Indications
- Permanent cementation of crowns, bridges, inlays and onlays
- Indirect resin restorations
- Veneers
- Fibre posts
- Orthodontic brackets
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