If the dentist's technique is subpar or the design is flawed, the crown may fracture or chip due to excessive stress, shortening its lifespan. Therefore, it is strongly recommended that patients select a reputable cosmetic dental clinic before undergoing crown restoration.
3. Manufacturing Techniques
The fabrication of the porcelain-fused-to-metal crown base and the porcelain application process must meet strict quality standards. Poor craftsmanship—such as inadequate marginal adaptation, improper thickness of the base crown or porcelain layer, or the presence of air bubbles within the porcelain—can significantly reduce the lifespan of the bridge.
4. Post-Treatment Care
The junction between the crown and the abutment tooth is prone to plaque accumulation and tartar formation. Patients should therefore undergo regular professional cleanings at the dental clinic. Additionally, avoiding excessively hard foods in daily diets can significantly extend the lifespan of porcelain crowns.
5. Porcelain Crown Materials
Porcelain crowns are categorized by material into non-precious metal, semi-precious metal, precious metal, and all-ceramic options. All-ceramic crowns offer the highest quality and cost the most. Naturally, you get what you pay for—all-ceramic crowns also boast the longest lifespan among all porcelain crown materials, potentially lasting a lifetime.