Porcelain Crowns in Istanbul E.max or porcelain fused to metal, in two visits over about 5–7 days

Yes, this is one of the most common reasons patients ask for new porcelain crowns. The dark line usually comes from the metal core of an older porcelain-fused-to-metal crown showing as the gum recedes. Replacing it with an all-ceramic E.max or zirconia crown removes the metal margin. The dentist also checks the tooth and gum underneath, as recession or decay may need treatment first.

For some situations, yes. A porcelain fused to metal crown has decades of clinical use. It remains a reliable option for certain long bridges or when a metal framework is preferred. For most single front teeth, all-ceramic crowns are now usually chosen because they avoid the grey margin and let light through more naturally. Your dentist will explain which type of porcelain crown suits each tooth.

Often, for premolars and some molars in people with a normal bite, because lithium disilicate is a strong glass-ceramic when bonded correctly. For heavy grinders, molars under high load or bridges spanning several teeth, monolithic zirconia is usually preferred. Your dentist will assess wear facets, bite forces and available tooth thickness before recommending E.max porcelain crowns for a back tooth.

Usually about 5 to 7 days, across two main visits. The first covers examination, tooth preparation, digital scans and temporary crowns. After the porcelain crowns are made, a try-in and final bonding take place a few days later. Larger cases, or teeth needing root canal treatment first, may need a day or two more, which your dentist confirms in advance.

The glazed porcelain surface resists staining well and does not respond to whitening, so it keeps its original shade. Your natural teeth, however, can darken or be whitened, which may create a mismatch. If you plan to whiten, do it before your porcelain crowns are shade-matched. Polishing at check-ups keeps the glaze smooth, and abrasive toothpastes should be avoided. Your dentist can show you shades in balanced light.

For most front teeth, E.max all-ceramic porcelain crowns are the usual choice. With no metal, light passes through them much like natural enamel, so they look lifelike and avoid a grey line at the gum. PFM crowns look more opaque and generally need slightly more reduction on the visible surface to hide the metal. For highly visible teeth, a ceramist may add fine layers or stains to blend the crown with its neighbours.

Well-made porcelain crowns often last 10 to 15 years or longer with good care. Longevity depends on your bite forces, hygiene, the tooth underneath and regular maintenance. Brush twice daily with a non-abrasive toothpaste, clean at the crown margins with floss or interdental brushes and attend check-ups every 6 to 12 months. If you grind your teeth, wearing a night guard helps protect the porcelain from chipping.