With the improvement of living standards, dental fillings are becoming more and more common for young friends. I often hear about who is cheated of how much money is being scammed when filling teeth. Many problems have appeared after fillings. In order to improve the materials used for fillings. Acknowledge, the editor collected some information for your reference.
There are many kinds of dental materials, and different materials should be selected according to different situations.
①According to the nature of the material, amalgam: consists of mercury and alloy powder; resin: composite resin with synthetic resin and natural resin gutta-percha; metal salt cement powder: such as zinc phosphate cement.
②According to the time the material can stay in the cavity, it can be divided into short-term use materials, such as temporary sealing materials used in the treatment process, clove oil zinc oxide cement can be used within 2 weeks, zinc phosphate cement Can be used within half a year; long-term used materials, that is, permanent filling materials, replace the long-term retention of defective dentin in the cavity, such as silver amalgam, composite resin, etc.
Silver amalgam: It is an amalgam compound that interacts with mercury and silver-tin alloy powder and is most commonly used clinically. It is mostly used for Class I and Class II holes that need to withstand occlusal force and Class V holes that do not need to consider aesthetics; holes for clasp abutment teeth; post and core restorations for post crown restorations or inner fillings for full crown restorations. When using silver amalgam to restore the tooth, a certain volume should be maintained to withstand the occlusal force without breaking; because the silver amalgam does not have adhesion to the tooth tissue, a box-shaped cavity should be prepared and a good retention shape should be designed. The two are tightly fitted, fitted with each other, and have good moisture resistance, so that the amalgam restoration can be firm and durable.
Composite resin: It is a filling material made of organic synthetic resin with a large amount of specially treated inorganic substances. With the help of tooth surface treatment technology, it can be bonded to the hard tissue of the tooth. It is mostly used for class III and class V cavities. Filling; There are also high-strength composite resins that can be used to fill Class I and Class II cavities in the posterior teeth. Adhesive technology can also be used to repair Class IV cavities and severe tooth defects.
Photosensitive curable composite resin, with stable color and strong adhesion, is especially suitable for anterior tooth beauty restoration; chemically cured composite resin, easy to operate, although it has a slight color change, it is used for posterior teeth and anterior tongue (palat) side cavities It is also suitable.
Polycarboxylate cement powder (also known as polyacrylic acid cement powder): It is a kind of cushioning and cementing material. It can be used as the base material for the cavity, the cavity sealing material within half a year, and the root canal filling material. It can be used as the crown and bridge for cementing dental restoration. Excipients can be added as a periodontal tamponade.
Glass ionomer cement powder: It is a kind of multi-purpose material with light irritation to dental pulp and adhesion to hard tissues of the tooth, but its strength is lower than that of silver amalgam. It is suitable for Class III and Class V cavities, used for filling deciduous teeth, and used as a cavity sealer to prevent caries.
Zinc phosphate cement: also known as permanent cement, zinc cement. It is used as the upper load-bearing material for the double bottom of deep holes, and the cavity sealing material within half a year, and also used for the crown and bridge restoration of dental restoration. Clove oil zinc oxide cement powder: also known as temporary cement powder, butoxy ointment. Used as a non-stress-bearing material for the bottom layer of a deep hole, or a single-layer material that does not support the force. It is used as a temporary sealing material for the cavity for 1 to 2 weeks. It is also used as a root canal filling material. Adding excipients as a periodontal plug treatment Agent.
Calcium hydroxide cement: It is a new type of marrow substrate material. It is used as a cushioning material for Class III and Class V holes, as a pulp protection substrate material for composite resin to block the stimulation of the dental pulp, and as a direct and indirect pulp capping agent. Teether: It becomes soft and plastic when heated at 40°C, and becomes hard after cooling.
