Crowns and Bridges
Whether you are prone to tooth problems or you have just been slacking a bit on dental hygiene, it’s always disappointing to head to the dentist and learn that you have a cavity. In most cases, these cavities can be filled to protect your teeth and prevent further decay, but what happens if the damage to your tooth is deeper?
Dental crowns are an integral part of dentistry. Crowns and bridges are “fixed solution” to a missing or damaged teeth. This restorative procedure uses prosthetic devices to return your smile to its natural state. A crown is used when tooth structure is damaged or fractured and after root canal procedure to strengthen the tooth structure. A bridge is used when one or more teeth are missing takes support from adjacent teeth to complete the arch.
Types Of Crowns Available?
- PFM or Porcelain Fused Metal
- Metal crown
Zirconia is the most aesthetically pleasing, extremely strong ceramic like material with established biocompatibility. Zirconium crowns and bridges are so strong they can be used anywhere in the mouth. Zirconium crowns can withstand the biting pressure of the front teeth as well as back teeth grinding. Availability of different shades makes it more in demand. This is the most sought after crown and bridge option, thanks to its longevity, aesthetic appeal and strength.
PFM or Porcelain Fused Metal
PFM is a layer of metal alloy at base topped by porcelain. This metal ceramic combination considered to be next best porcelain for natural looking restoration. However, over a period of time; the ceramic overlaying may wear off or the metal underlying the crown’s porcelain can show through. In the gums it may show through as a dark line. They may be required to be upgraded or replaced after few years.
Metal crowns generally make use of gold alloys or base metal alloys like that of chromium or nickel. They are not aesthetically appealing. And can cause unpleasant sensitivity due to its conductive nature in oral cavity. It is not a choice of material in patients with metal allergies.
Your dentist will evaluate and diagnose your oral condition and may suggest you a dental crown if:
- Tooth is fractured or damaged
- Tooth severally discolored
- Tooth is misshapen
- When dental bridge needs an anchor
Longevity of crowns and bridges depends on effectiveness and regularity of your dental hygiene routine. As a general rule, they last between 7-15 years. How long your dental crown lasts depends on how much wear and pressure it’s been under, whether or not you do things like grind your teeth or chew ice, and how well you keep up with good oral hygiene habits like brushing twice a day, flossing once a day and regular dental checkup.