What Steps are Involved in Preparing a Tooth for a Crown?
Fitting a crown requires at least two visits to our office. Initially, we will remove decay, replace decayed tooth structure with a filling, then shape the tooth, and fit it with a temporary crown of either plastic or metal.

1. Examining and preparing the tooth. At the first visit, your dentist may take a few x-rays to check the roots of the tooth receiving the crown and surrounding bone. If the tooth has extensive decay or if there is a risk of infection or injury to the tooth's pulp, a root canal treatment may first be performed.
2. Before the process of making your crown is begun, your dentist will anesthetize your tooth and the gum tissue around the tooth. Next, the tooth receiving the crown is filed down along the chewing surface and sides to make room for the crown. The amount removed depends on the type of crown used (for instance, all-metal crowns are thinner, requiring less tooth structure removal than all-porcelain or porcelain-fused-to-metal ones). If, on the other hand, a large area of the tooth is missing (due to decay or damage), your dentist will use filling material to "build up" the tooth enough to support the crown.
3. After reshaping the tooth, your dentist will use impression paste or putty to make an impression of the tooth to receive the crown. Impressions of the teeth above and below the tooth to receive the dental crown will also be made to make sure that the crown will not affect your bite.
4. The impressions are sent to a dental laboratory where the crown will be manufactured. The crown is usually returned to your dentist's office in 2 to 3 weeks. If your crown is made of porcelain, your dentist will also select the shade that most closely matches the color of the neighboring teeth. During this first office visit your dentist will make a temporary crown to cover and protect the prepared tooth while the crown is being made. Temporary crowns usually are made of acrylic and are held in place using a temporary cement.
5. Receiving the permanent dental crown. At your second visit, your dentist will remove your temporary crown and check the fit and color of the permanent crown. If everything is acceptable, a local anesthetic will be used to numb the tooth and the new crown is permanently cemented in place.

Flossing techniques
There are two common methods for flossing - the "spool" method and the "loop" method.

The spool method is the most popular for those who don't have problems with stiff joints or fingers. The spool method works as follows: Break off about 18 inches of floss and wind most of it around your middle finger. Wind the rest of the floss similarly around the middle finger of your other hand. This finger takes up the floss as it becomes soiled or frayed. Move the floss between your teeth with your index fingers and thumbs. Maneuver the floss up and down several times forming a "C" shape around the tooth. While doing this, make sure you go below the gum line, where bacteria are known to collect heavily.

The loop method is often effective for children or adults with dexterity problems like arthritis. The loop method works like this: Break off about 18 inches of floss and form it into a circle. Tie it securely with two or three knots. Place all of your fingers, except the thumb, within the loop. Use your index fingers to guide the floss through your lower teeth, and use your thumbs to guide the floss through the upper teeth, going below the gum line and forming a "C" on the side of the tooth.