Is pit and fissure sealing harmful to teeth?

Aug 22, 2025 Source: Cainiu Health

Dr. Liu Chao

Introduction

In general, pit and fissure sealing is usually harmless to the teeth. If discomfort occurs, such as tooth sensitivity or pain, it is recommended to seek timely consultation with a professional dentist. After undergoing pit and fissure sealing, care should be taken to avoid chewing excessively hard foods with the sealed teeth for 24 hours to prevent the sealant from becoming dislodged. Good oral hygiene should still be maintained in daily life, including regular tooth brushing, flossing, and routine dental check-ups.

Generally, fissure sealing is typically harmless to teeth. If discomfort occurs, such as tooth sensitivity or pain, it is recommended to seek timely consultation with a professional dentist. Detailed analysis is as follows:

Fissure sealing is an effective method for preventing dental caries and generally does not damage teeth. This procedure involves applying a layer of high molecular composite resin or other dental material onto the fissures of the teeth to create a protective barrier that prevents food debris and bacteria from entering the fissures, thus preventing the occurrence of tooth decay. Fissure sealing is applied only on the tooth surface and does not alter the shape or structure of the teeth or affect their chewing function. Additionally, fissure sealing can protect teeth from external irritation and reduce the occurrence of tooth sensitivity. It is a minimally invasive treatment method that does not require anesthesia, making it suitable for children and adolescents, especially those prone to dental caries. Adults who have deep fissures or a history of dental caries may also consider undergoing fissure sealing.

After undergoing fissure sealing, care should be taken to avoid chewing hard foods with the sealed teeth for 24 hours to prevent the sealant from falling off. Maintaining good oral hygiene in daily life is still essential, including regular tooth brushing, flossing, and routine dental check-ups. If the sealant becomes dislodged, timely reapplication is recommended to ensure continuous protection.

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