Treatments

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Tooth Fillings

To treat a cavity Dr. Mirza will remove the decayed portion of the tooth and then “fill” the area on the tooth where the decayed material was removed.  Fillings are also used to repair cracked or broken teeth and teeth that have been worn down from misuse (such as from nail-biting or tooth grinding).

Today, several dental filling materials are available. Teeth can be filled with porcelain; silver amalgam (which consists of mercury mixed with silver, tin, zinc, and copper); or tooth-colored plastic. The location and extent of the decay, cost of filling material, patients’ insurance coverage, and your dentist’s recommendation assist in determining the type of filling best for you.

Silver Fillings (Amalgams)

Advantages of silver fillings: 
 

  1. Durability — silver fillings last at least 10 to 15 years and usually outlasts composite (tooth-colored) fillings.

  2. Strength — can withstand chewing forces

  3. Expense — is less expensive than composite fillings

Disadvantages of silver fillings: 

  1. Poor aesthetics — silver fillings don’t match the color of natural teeth.

  2. Destruction of more tooth structure — healthy parts of the tooth must often be removed to make a space large enough to hold the amalgam filling.

  3. Discoloration — amalgam fillings can create a grayish hue to the surrounding tooth structure.

  4. Cracks and fractures — although all teeth expand and contract in the presence of hot and cold liquids, which ultimately can cause the tooth to crack or fracture, amalgam material — in comparison with other filling materials — may experience a wider degree of expansion and contraction and lead to a higher incidence of cracks and fractures.

  5. Allergic reactions — a small percentage of people, approximately 1%, are allergic to the mercury present in amalgam restorations.

Tooth-colored Composites

Advantages of composites:

  1. Aesthetics — the shade/color of the composite fillings can be closely matched to the color of existing teeth. Composites are particularly well suited for use in front teeth or visible parts of teeth.

  2. Bonding to tooth structure — composite fillings actually chemically bond to tooth structure, providing further support.

  3. Versatility — in addition to use as a filling material for decay, composite fillings can also be used to repair chipped, broken, or worn teeth.

  4. Tooth-sparing preparation — sometimes less tooth structure needs to be removed compared with amalgam fillings when removing decay and preparing for the filling.

Disadvantages of composites:

  1. Lack of durability — composite fillings wear out sooner than amalgam fillings (lasting at least five years compared with at least 10 to 15 for amalgams); in addition, they may not last as long as amalgam fillings under the pressure of chewing and particularly if used for large cavities.

  2. Increased chair time — because of the process to apply the composite material, these fillings can take up to 20 minutes longer than amalgam fillings to place.

  3. Additional visits — if composites are used for inlays or onlays, more than one office visit may be required.

  4. Chipping — depending on location, composite materials can chip off the tooth.

  5. Expense — composite fillings can cost up to twice the cost of amalgam fillings.

     

Indirect Restorations- Porcelain or Resin

There are two types of indirect fillings — inlays and onlays.

  • Inlays are similar to fillings but the entire work lies within the cusps (bumps) on the chewing surface of the tooth.
  • Onlays are more extensive than inlays, covering one or more cusps. Onlays are sometimes called partial crowns.

  • Inlays and onlays are more durable and last much longer than traditional fillings — up to 30 years. They can be made of tooth-colored composite resin, porcelain, or gold. Inlays and onlays weaken the tooth structure, but do so to a much lower extent than traditional fillings.  The process of inlays/onlays usually takes 2 appointments.

Your First Appointment:

  1. The old filling is removed along with any additional decay.
  2. An impression is made of your teeth. A model of your teeth is made and sent to the lab.
  3. A temporary onlay is placed on the tooth.

At the Lab: A resin/porcelain is carefully placed into the model of your teeth. It is then designed to look natural.

Your Second Appointment:

  1. The temporary onlay is removed.
  2. A conditioning gel is placed on your tooth to prepare it for the new onlay.
  3. Bonding cement is placed on the tooth and a high intensity light bonds the resin to the tooth.
  4. The tooth is then polished.

Your teeth are restored to a natural look and feel, they are stronger and the tooth is protected!