What are the types of porcelain-fused-to-metal dental crowns?

In general, the main types of porcelain-fused-to-metal (PFM) dental crowns include nickel-chromium alloy crowns, cobalt-chromium alloy crowns, titanium alloy crowns, pure titanium crowns, and precious metal crowns. A detailed analysis is as follows:

1. Nickel-Chromium Alloy Crowns

Nickel-chromium alloy crowns use a nickel-chromium alloy as the inner core, with a layer of porcelain fused on the outside. They are bonded onto prepared natural teeth to restore tooth shape and function. The typical reference price for nickel-chromium alloy crowns ranges from 400 to 800 yuan per tooth. Improvement is usually visible within 2–3 hours after the procedure, but potential side effects may include gingival black lines or allergic reactions.

2. Cobalt-Chromium Alloy Crowns

Cobalt-chromium alloy crowns feature a cobalt-chromium alloy inner core covered with porcelain, which is cemented onto natural teeth to restore dental function. The typical reference price ranges from 600 to 1,500 yuan per tooth. Improvement is generally noticeable within 2–3 hours post-procedure, though allergic reactions may occur in some cases.

3. Titanium Alloy Crowns

Titanium alloy crowns contain a certain proportion of titanium metal in the inner framework, combined with a porcelain layer, to repair tooth defects or enhance dental appearance. The typical reference price ranges from 800 to 1,800 yuan per tooth. Results are usually visible within 2–3 hours after placement, although there remains a risk of allergic reactions.

4. Pure Titanium Crowns

Pure titanium crowns have an inner core made entirely of pure titanium, offering excellent biocompatibility and strength, with a porcelain layer applied externally to restore tooth form and function. The typical reference price ranges from 1,500 to 3,000 yuan per tooth. Improvement is typically seen within 2–3 hours after the procedure, but there may be a risk of porcelain chipping or fracture.

5. Precious Metal Crowns

Precious metal crowns use a gold-based alloy inner core, combined with a porcelain layer. They offer superior aesthetics, excellent biocompatibility, and minimal irritation to the gums. The typical reference price ranges from 2,000 to 5,000 yuan per tooth. Improvement is usually evident within 2–3 hours after placement, though some patients may experience gum redness, swelling, or bleeding.

It is recommended to visit a reputable medical institution and undergo these procedures under the guidance of a qualified dentist to ensure effectiveness and safety. Additionally, maintain good oral hygiene, avoid biting hard or sticky foods, limit consumption of staining beverages, and schedule regular dental check-ups.