SND Zinc Oxide Eugenol Cement

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Description

Zinc oxide eugenol cement is widely used in the dental field, it is often used to relieve patients’ toothache and inflammation. Today we take a look at the performance of zinc oxide eugenol cement.
Definition
A cement formed by acid-base reaction between activated zinc oxide powder and eugenol. The formation of zinc oxide eugenol chelate makes the cement solidify and harden. The analgesic and antibacterial functions of eugenol can soothe congested pulp. Clinically, liquid clove oil is commonly used as an analgesic for acute pulpitis, while zinc oxide clove oil cement is used for deep caries underlay and temporary sealing of cavities.
Performance of zinc oxide eugenol cement
1. Strength: The strength is relatively low. The compressive strength of the ordinary type is in the range of 25-35Mpa, which is not enough to withstand the chewing force. Therefore, when using it as a base, a layer of zinc phosphate cement is also needed on it. The reinforced type has a higher compressive strength, in the range of 45 to 55 MPa. The Chinese pharmaceutical industry standard stipulates that the compressive strength of zinc oxide clove oil cement should not be less than 25MPa.
2. Coagulation time: Coagulation time is 3-10 minutes, it can accelerate its solidification in the moist environment of oral cavity after reconciliation.
3. Solubility: It is soluble in water and saliva, and has higher solubility in water, second only to calcium hydroxide cement, mainly due to the precipitation of clove oil. However, the zinc oxide clove oil cement has a small volume shrinkage (0.1%) during the solidification process, and the short-term adhesion to the cavity wall is the best among the base materials, so it is often used as a temporary sealing material.
4. Effect on dental pulp: Among the base materials, zinc oxide eugenol cement is the least irritating to dental pulp, and has the effects of caressing, anti-inflammatory and antibacterial, and can protect dental pulp from zinc phosphate cement and heat, Electrical stimulation. Therefore, zinc oxide eugenol cement is often used as a base material close to the deep cavity of the dental pulp and a root canal filling material. It can also be used to cap the pulp of small penetrating points.
Advantages & Disadvantages
Zinc oxide eugenol cement is mainly used for basement, temporary fixation, and cavity sealing.

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