How many baby teeth will my child get?

Typically, a child has 20 primary or baby teeth.

These primary teeth serve as placeholders for the permanent adult teeth that will eventually replace them as the child grows. The 20 primary teeth consist of the following:

1. Central Incisors: There are four of these, two on the upper jaw (maxillary central incisors) and two on the lower jaw (mandibular central incisors).

2. Lateral Incisors: Four lateral incisors, two on the upper jaw (maxillary lateral incisors) and two on the lower jaw (mandibular lateral incisors).

3. Canines (Cuspids): Four canines, two in the upper jaw (maxillary canines) and two in the lower jaw (mandibular canines).

4. First Molars: Four first molars, two in the upper jaw (maxillary first molars) and two in the lower jaw (mandibular first molars).

5. Second Molars: Four second molars, two in the upper jaw (maxillary second molars) and two in the lower jaw (mandibular second molars).

The eruption of these primary teeth typically begins at around six months of age and continues until the child is about 2-3 years old. As the child grows, these primary teeth gradually fall out, making way for the eruption of permanent adult teeth. The process of losing primary teeth and replacing them with permanent teeth usually continues until the late teens or early twenties.

Composite resin vs Glass Ionomer Cement

Composite resin and Glass Ionomer Cement (GIC) are both widely used materials in dentistry, but they have different properties and uses. Here's a comparison between the two:

1. Composition:

• Composite Resin:

  • Made of a mixture of organic resin (like bis-GMA or UDMA) and inorganic filler particles (silica, quartz, or glass).

  • The fillers provide strength, while the resin binds the fillers and enhances bonding.

• Glass Ionomer Cement (GIC):

  • Composed of a powder (aluminum, silicon, and fluoride-based glass) and an acid (polyacrylic acid).

  • GIC releases fluoride, which helps in remineralizing teeth and preventing decay.

2. Aesthetic Qualities:

• Composite Resin:

  • Excellent aesthetic properties; it can be closely matched to the natural color of teeth.

  • Often used in visible areas, such as anterior teeth, because of its natural look.

• Glass Ionomer Cement (GIC):

  • Less aesthetic than composite resins; typically, it's more opaque and has a duller finish.

  • Used for posterior fillings or areas not as visible, though there are "aesthetic" GICs that are somewhat better in appearance.

3. Bonding:

• Composite Resin:

  • Requires a bonding agent to adhere to the tooth structure.

  • Strong bonding to enamel and dentin, which provides better retention.

• Glass Ionomer Cement (GIC):

  • Bonds chemically to both enamel and dentin, but not as strong as composite resins.

  • Does not require a bonding agent for adhesion to the tooth.

4. Strength and Durability:

• Composite Resin:

  • Stronger and more durable, especially in terms of wear resistance.

  • Can withstand heavy biting forces in high-stress areas.

• Glass Ionomer Cement (GIC):

  • Weaker than composite resin in terms of strength and wear resistance.

  • Not ideal for high-stress areas but suitable for lower-stress regions.

5. Fluoride Release:

• Composite Resin:

  • Does not release fluoride.

• Glass Ionomer Cement (GIC):

  • Known for its fluoride-releasing properties, which can help to prevent secondary decay around the restoration.

6. Handling and Application:

• Composite Resin:

  • Requires more skill for placement as it needs to be placed in layers and cured under a light source.

  • More time-consuming and requires precise technique for an ideal finish.

• Glass Ionomer Cement (GIC):

  • Easier to handle and place; it can be applied quickly.

  • Cures chemically without needing a light, making it simpler for certain types of restorations, especially in pediatric dentistry or temporary fillings.

7. Indications:

• Composite Resin:

  • Ideal for anterior restorations, small to medium-sized cavities, and cosmetic dental procedures.

  • Can be used for direct and indirect restorations.

• Glass Ionomer Cement (GIC):

  • Best for posterior restorations in low-stress areas, such as in pediatric patients, temporary fillings, or as a base material.

  • Suitable for patients who are at high risk of decay due to its fluoride release.

8. Cost:

• Composite Resin:

  • Generally more expensive due to the materials and technique required.

• Glass Ionomer Cement (GIC):

  • Typically less expensive, which makes it a good option for more budget-conscious treatments.

Summary:

• Composite Resins are more durable, aesthetic, and versatile, ideal for high-stress areas and visible teeth.

• Glass Ionomer Cements are easier to use, release fluoride, and bond well to tooth structure, but are more suited for low-stress areas and not as long-lasting as composites.

The choice between the two depends on the clinical situation, patient needs, and the area being treated.

How a crown protects a cracked tooth

Dental crowns, also known as dental caps, are often used to support and restore a cracked tooth. When a tooth is cracked, the structural integrity of the tooth may be compromised, and it may become weak or susceptible to further damage. Dental crowns are an effective treatment option to address this issue. Here's how crowns are used to support a cracked tooth:

1. Diagnosis and Evaluation: The process begins with a thorough dental examination and diagnostic tests, which may include X-rays or other imaging to assess the extent of the crack and determine if a crown is the appropriate treatment.

2. Tooth Preparation: If a dental crown is deemed the appropriate solution, the dentist will start by preparing the cracked tooth. This typically involves removing a portion of the tooth's outer structure to create space for the crown. The amount of tooth structure removed depends on the extent of the damage and the type of crown being used.

3. Impressions: After tooth preparation, impressions of the tooth are taken. These impressions are used to create a custom-made crown that will fit precisely over the prepared tooth.

4. Temporary Crown: While the permanent crown is being fabricated, a temporary crown may be placed over the prepared tooth to protect it and maintain aesthetics and function.

5. Crown Fabrication: The impressions are sent to a dental laboratory, where the permanent crown is crafted. The crown can be made from various materials, including porcelain, porcelain-fused-to-metal, metal alloys, or all-metal.

6. Crown Placement: Once the permanent crown is ready, the temporary crown is removed, and the new crown is carefully checked for fit, color, and alignment. Adjustments are made as needed to ensure a proper fit and bite.

7. Cementation: Once the dentist and patient are satisfied with the crown's fit and appearance, it is permanently cemented onto the prepared tooth using dental adhesive. The crown covers the entire visible portion of the tooth above the gumline.

8. Bite Adjustment: After crown placement, the dentist will check the patient's bite to ensure that it aligns correctly and that there are no interferences or high spots that could lead to further problems.

Benefits of Using Crowns for Cracked Teeth:

- Restored Strength: Crowns provide support and strength to the cracked tooth, preventing further damage and fracture.

- Protection: Crowns act as a protective barrier, sealing the crack and preventing bacteria from entering and causing infection.

- Aesthetics: Crowns are designed to match the color and shape of the surrounding teeth, restoring the tooth's appearance.

- Functional Restoration: Crowns restore the tooth's ability to bite and chew properly.

Dental crowns are a reliable and durable solution for supporting cracked teeth. They help preserve the natural tooth and its function while providing long-lasting protection and aesthetics. The choice of crown material may depend on various factors, including the tooth's location, the extent of the crack, and the patient's preferences, all of which are discussed between the patient and dentist during treatment planning.