PMC dental refers to Preformed Metal Crowns, which are commonly used in pediatric dentistry for restoring decayed primary molar (baby teeth).
Understanding Preformed Metal Crowns (PMCs)
PMCs are stainless steel crowns that are prefabricated in various sizes to fit different primary molars. They serve as a durable and effective restoration option for extensively damaged or decayed baby teeth.
Why are PMCs Used?
- Extensive Decay: When a cavity is too large to be filled with a traditional filling.
- Following Pulp Therapy (Pulpotomy/Pulpectomy): To protect the weakened tooth structure after root canal treatment on a primary tooth.
- Hypoplasia: In cases of enamel defects, PMCs can provide full coverage and protection.
- High Caries Risk: Children with a high risk of developing cavities may benefit from PMCs as they offer superior protection compared to fillings.
Advantages of PMCs
- Durability: PMCs are more durable than fillings, especially for larger cavities in primary molars.
- Longevity: They can last until the tooth naturally exfoliates (falls out).
- Full Coverage: PMCs cover the entire tooth, protecting it from further decay.
- Cost-Effective: In the long run, PMCs can be more cost-effective than repeatedly replacing fillings.
- Reduced Sensitivity: By covering the entire tooth, PMCs can reduce sensitivity to hot and cold.
Procedure
The PMC procedure typically involves:
- Tooth Preparation: Removing decay and shaping the tooth to accommodate the crown.
- Crown Selection: Choosing the appropriate size PMC.
- Cementation: Cementing the PMC onto the prepared tooth with a dental cement.
- Checking Occlusion: Ensuring the crown fits properly and doesn't interfere with the bite.
Alternatives to PMCs
While PMCs are a common and effective option, alternatives include:
- Amalgam Fillings: Traditional silver fillings, less commonly used now due to aesthetic concerns and the release of mercury.
- Composite Fillings: Tooth-colored fillings, suitable for smaller cavities.
- Zirconia Crowns: Tooth-colored crowns, offering better aesthetics but generally more expensive than PMCs.
In summary, PMC dental, specifically Preformed Metal Crowns, are a reliable restoration option for damaged primary molars, providing durability and protection until the tooth is naturally lost.
