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Dental Implants

Dental Implant Surgery

Dental implant surgery is a procedure that replaces tooth roots with metal, screwlike posts and replaces damaged or missing teeth with artificial teeth that look and function much like real ones. Dental implant surgery can offer a welcome alternative to dentures or bridgework that doesn’t fit well and can offer an option when a lack of natural teeth roots don’t allow building denture or bridgework tooth replacements.

Waiting for bone growth

Once the metal implant post is placed in your jawbone, osseointegration (oss-ee-oh-in-tuh-GRAY-shun) begins. During this process, the jawbone grows into and unites with the surface of the dental implant. This process, which can take several months, helps provide a solid base for your new artificial tooth — just as roots do for your natural teeth.

Placing the dental implant

During surgery to place the dental implant, your oral surgeon makes a cut to open your gum and expose the bone. Holes are drilled into the bone where the dental implant metal post will be placed. Since the post will serve as the tooth root, it’s implanted deep into the bone. At this point, you’ll still have a gap where your tooth is missing. A type of partial, temporary denture can be placed for appearance, if needed. You can remove this denture for cleaning and while you sleep.

Choosing your new artificial teeth

Once your gums heal, you’ll have more impressions made of your mouth and remaining teeth. These impressions are used to make the crown — your realistic-looking artificial tooth. The crown can’t be placed until your jawbone is strong enough to support use of the new tooth.

You and your dental specialist can choose artificial teeth that are removable, fixed or a combination of both:

Removable. This type is similar to a conventional removable denture and can be a partial or full denture. It contains artificial white teeth surrounded by pink plastic gum. It’s mounted on a metal frame that’s attached to the implant abutment, and it snaps securely into place. It can be easily removed for repair or daily cleaning.
Fixed. In this type, an artificial tooth is permanently screwed or cemented onto an individual implant abutment. You can’t remove the tooth for cleaning or during sleep. Most of the time, each crown is attached to its own dental implant. However, because implants are exceptionally strong, several teeth can be replaced by one implant if they’re bridged together.

Procedures

Each person is likely to have a different experience of dental implant surgery. Factors that may influence this include:

the number of teeth requiring replacement
the location of the implants within the jaw
the quality and quantity of bone at the implant site
the person’s underlying oral and systemic health

Depending on these factors, additional procedures may be necessary. These can include:

Sinus augmentation

Placing an implant in the upper jawbone is usually difficult because of the location of the sinuses.

The surgeon may need to perform a sinus augmentation — a procedure to lift the floor of the sinuses to allow more bone to develop so that the implantation can be successful.

Ridge modification

Some people have a jawbone abnormality that prevents enough bone for an implant from developing. In such cases, a surgeon may need to perform a ridge modification.

This involves lifting the gum to expose the area of deformed bone. The surgeon will then use a bone or bone substitute to repair and build up the area. This improves the quality of the jawbone in preparation for dental implant surgery.

TYPES OF DENTAL IMPLANTS

Endosteal (in the bone): This is the most commonly used type of implant. The various types include screws, cylinders or blades surgically placed into the jawbone. Each implant holds one or more prosthetic teeth. This type of implant is generally used as an alternative for patients with bridges or removable dentures. Subperiosteal (on the bone): These are placed on top of the jaw with the metal framework’s posts protruding through the gum to hold the prosthesis. These types of implants are used for patients who are unable to wear conventional dentures and who have minimal bone height.