Light cured resin filling stepsDoes the light curing dental procedures!
The hole shape depends on the size of caries, only for caries removal. The hole edge enamel wall prepared short bevel angle of 45 degrees, with enamel etching, but do not be inclined on site. The resin itself bear force strength is limited, but also will bear the box shaped hole position for dressing force flat bottom wall straight, so that the composite resin filling has the best resistance form. To make certain the caries retention form, do not have too much to kill tooth structure can not bear pressure and deep caries of the site can not form a standard box shaped hole shape. Such as hole preparation to the bottom, only pad can be protected. Especially the adhesion of the bottom material should not be too much to cover dentin, enamel composite resin. Absolutely not cover non good guide body, and a bottom is isolated from the resin material itself of chemical stimulation and physical stimulation. The commonly used pulp protection and The bottom materials mainly include: calcium hydroxide, glass ionomer, poly carboxylic acid etc.. But we should pay attention to the Watergate is the use of Zinc Oxide clove oil phenol and cement containing alcohol, chloroform, ether material bottom, such materials can interfere with polymerization of composite resin. The modern tooth has adhesive good hydrophilicity, can fully penetrate into the demineralized dentin collagen fibrils in the formation of the mixed layer, good sealing, irritation to pulp is very small. In the depth of hole does not need other materials. Protecting pulp bottom can direct composite resin filling.
The basic steps of composite resin bonding repair1. colorimetric choiceFirst determine the teeth with composite resin, and can achieve a satisfactory result, the colorimetric before the repair according to the restoration of teeth and the adjacent tooth color suitable resin. Note colorimetric should be carried out under natural light, but also to keep the teeth moist, dry teeth will make the color change shallow.2., repair cavity repair, shape, preparation featuresIn order to achieve good results, the two aspects of enamel and dentin should be taken into consideration, especially the high bonding strength of enamel
The composite resin restorations are mostly suitable for the repair of I, III, IV, I, V and II holes in front teeth, anterior teeth, posterior teeth, posterior teeth and posterior teeth, and the restoration of defects before crown restoration
