What is the difference between dental fillings and fissure sealants?

Aug 22, 2025 Source: Cainiu Health

Dr. Liu Chao

Introduction

In general, the main differences between dental fillings and pit and fissure sealants are reflected in their applicable situations, purposes, procedures, materials used, and target populations. A detailed analysis is as follows: Additionally, after receiving a dental filling, one should avoid chewing overly hard foods with the affected tooth to prevent the filling material from dislodging. After pit and fissure sealant application, regular check-ups are also necessary to ensure the sealant remains intact.

Generally speaking, the differences between dental fillings and pit and fissure sealing are mainly reflected in their indications, purposes, procedures, materials used, and target populations. A detailed analysis is as follows:

1. Indications

Dental fillings are suitable for teeth that already have caries, noticeable defects, or damaged dental tissues, requiring restoration to recover dental function. Pit and fissure sealing is suitable for teeth with deep pits and fissures but without existing caries, primarily serving as a preventive measure for healthy teeth.

2. Purpose

The purpose of dental fillings is to restore damaged dental tissues, halt further progression of tooth decay, and recover the tooth's shape and chewing function. The purpose of pit and fissure sealing is to form a protective layer within the tooth's fissures to prevent accumulation of food debris and bacterial erosion, thereby reducing the likelihood of developing caries.

3. Procedure

For dental fillings, the dentist must first remove decayed tissue, prepare an appropriate cavity shape, and then fill the defective area with restorative material to restore the tooth's integrity. For pit and fissure sealing, no dental tissue removal is necessary. The procedure involves cleaning the pits and fissures and then applying a sealant to these areas, which solidifies to form a protective film.

4. Materials Used

Commonly used materials for dental fillings include composite resins and glass ionomer cements. These materials must bond closely with the dental tissues to withstand chewing forces. Pit and fissure sealing uses specialized sealants, typically resin-based materials with good flowability, enabling thorough penetration into the fissures and subsequent solidification.

5. Target Population

Dental fillings have no specific age restrictions; they can be performed whenever dental caries or defects occur. Pit and fissure sealing is more suitable for children and adolescents, especially those whose permanent teeth have recently erupted, have deep fissures, and face challenges in maintaining oral hygiene.

In addition, after receiving a dental filling, patients should avoid chewing hard foods with the treated tooth to prevent dislodgement of the filling material. After pit and fissure sealing, regular check-ups are needed to ensure the sealant remains intact. Both dental fillings and pit and fissure sealing should be accompanied by good oral hygiene practices to better protect dental health.

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Can pulpitis be treated with a dental filling?

In general, whether pulpitis can be treated with a dental filling depends on the specific stage and severity of the condition. If experiencing dental discomfort, it is recommended to seek timely medical attention. When managing pulpitis, it is important to see a dentist promptly upon experiencing tooth pain to avoid delaying treatment and worsening the condition. During the treatment period, avoid chewing excessively hard, cold, or hot foods with the affected tooth.

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When should pit and fissure sealing be done?

In general, pit and fissure sealing is performed within one year after the tooth erupts. After undergoing pit and fissure sealing, certain precautions should still be observed. For several days following the procedure, avoid chewing excessively hard or sticky foods with the sealed teeth to prevent dislodgement of the sealant material. It is important to maintain good oral hygiene by thoroughly brushing teeth twice daily and using dental floss or other tools to clean the interproximal surfaces of the teeth.

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When should children receive pit and fissure sealants?

Under normal circumstances, children can receive pit and fissure sealing at the age of 6 to 7 years. After the procedure, it is important to avoid letting the child chew excessively hard foods, such as nuts or bones, with the sealed teeth for 24 hours post-treatment, to prevent dislodgement of the sealing material. Additionally, it is important to supervise the child's daily oral hygiene, ensuring they brush their teeth at least twice daily for no less than three minutes each time.

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What is the price for children's dental fissure sealing?

Under normal circumstances, the general reference price for children's dental fissure sealants is 80-300 yuan per tooth. However, the specific price may be affected by factors such as the number of teeth, the condition of the teeth, the selected materials, local living costs, and follow-up services. This procedure should be performed at a qualified medical institution. A detailed explanation is as follows: in daily life, parents should supervise children to maintain good oral hygiene.