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Imagine this: An implant surgeon is performing a thorough examination of your mouth. The surgeon rotates your jaw from side to side and up and down, looking for the optimal sites in which to place dental implants — and the proper size, shape and orientation for the implants to have. He or she may test several alternatives, considering the underlying anatomical structures, and the bone density and quality that the examination reveals. Finally, a surgical plan is developed: This includes a set of precise specifications for implant position, size and depth, and a template for creating a perfectly fitting set of replacement teeth. But no invasive procedures of any type have been performed so far. In fact, you aren't even present.

Welcome to the world of computer-guided dental implant surgery. What we have described is one step in the process that allows you to receive a set of replacement teeth with the minimum amount of surgery (and time spent in the dental chair), and the maximum level of preplanning foresight. It can result in faster overall treatment time, less discomfort, and an outcome that pleases everyone. Let's look a little more closely at the entire process of computer-guided implant surgery — a procedure at the forefront of dental implant technology.

The First Phase: Making A Virtual Model

It all begins with a complete examination and modeling of your existing teeth, gum and jaw structures. In many cases, a physical impression (replica) of the jaws is made, which will aid in planning the location of the new teeth. But the modeling doesn't stop there: A high-tech, three-dimensional CT (computed tomography) scan is also performed. This allows us to examine the structures (including bone, nerve tissue and sinus cavities) which lieinside the jaw. It is often accomplished using “cone-beam” CT technology, in which the scanning device quickly captures a complete digital image of internal structures as it rotates around your head.

The next step of the process relies on powerful computers and sophisticated software to take the raw CT scan data and translate it into a 3-D model of the jaw. This virtual model can be manipulated on a computer screen — rotated, measured, even “operated” on — so that we can visualize the placement of dental implants and determine their optimum position with a high degree of accuracy. Using this technology, it's now possible for us to evaluate anatomical structures virtually — structures it once would have taken surgery to reveal — and to plan out the implant procedure accordingly.

The 3-D model we have developed is then used for two purposes: to create a precise guide for the implant surgery, and to allow the dental laboratory to pre-manufacture a set of replacement teeth that will fit precisely in the jaw. An advanced set of CAD/CAM (computer aided design/manufacture) processes is used to generate the physical objects — in this case, the surgical guide and the prosthetic teeth. Depending on your individual situation, the new teeth may be attached the same day as implant surgery, or after a healing period of 6 to 12 weeks. In either case, our precision modeling ensures that they will fit perfectly with the implants and the jaw.

Implant Surgery: Following the Plan

The implant surgery itself is typically performed under local anesthesia, and often requires no sutures (stitches). In the surgical procedure, the template we have produced (which resembles a nightguard or athletic mouthguard) is securely (but temporarily) fixed in position on the jaw. The openings in this template form precise guides for the placement of the implants — accurate in terms of position, width and depth. In fact, the implants fit so perfectly into these prepared sites that we can have new teeth placed the same day as implant surgery.

Since so many of the details have been accomplished in the planning stages, computer-guided implant surgery is typically uneventful for the patient. It can result in shorter time in the chair, less discomfort during recovery — and a highly pleasing result. It has even been called the most significant innovation in implant technology since osseointegration — the fundamental process by which a dental implant becomes fused with the bone.

Periodontal Disease.While you may think that some loss of teeth is inevitable with aging, it is actually possible for all of your teeth to last a lifetime. One of the ways you can achieve this goal is to avoid periodontal disease (“peri” – around; “odont” – tooth), which is caused by bacteria that attack the tissues around the teeth. Unfortunately, you may not even realize you have gum disease as the signs and symptoms are not always as apparent to you as they are to a dental professional.

Nearly all people who do not maintain good daily oral hygiene will develop gingivitis. If left untreated, this bacterial gum infection can progress from gingivitis (“gingival” – gum; “itis” – inflammation) to periodontitis, which results in bone loss around your teeth. As the bone tissue is lost, the gum tissues detach from the teeth and form little pockets that provide an even better place for bacteria to live — where your brush and floss can't reach. As periodontal disease advances leading to more bone loss, tooth loss can result. Part of this has to do with genetics, as periodontal disease tends to run in families. The good news is that periodontal disease can be controlled, even at more advanced stages.

Signs and Symptoms of Periodontal Disease

It's important to understand that you can have periodontal disease with no obvious symptoms, especially if you are a smoker (nicotine reduces blood supply preventing bleeding and swelling of the gum tissues). Still, there are some important things to look for:

  • Bleeding gums — Some people think that when their gums bleed, it simply means they're brushing too hard. While brushing too hard is bad for the gums, it should not cause bleeding. Any bleeding of the gums should be considered a warning sign of gum disease.
  • Bad breath — It's very easy for plaque to collect in the spaces between the teeth, creating the perfect living conditions for bacteria that produce odorous, sulfur-containing compounds, resulting in bad breath.
  • Redness or swelling of the gums — Inflammation of the gums is usually the first visible sign of periodontal disease.
  • Receding gums — If you notice that your teeth look longer than they used to, it may be that your gum tissue has receded (away from the enamel), exposing some of your tooth roots.
  • Sensitivity — If there is gum recession, the exposed roots may become sensitive to hot or cold.
  • Periodontal abscess — Bacteria can become enclosed in a periodontal pocket and the area will fill with pus, becoming swollen and painful.
  • Loose teeth — When periodontal disease results in bone loss, teeth can become loose or migrate. Tooth loss can result and may be accelerated if you are applying excessive biting forces from clenching or grinding your teeth.

Treatment Options

All periodontal therapy starts with the evaluation of your oral hygiene techniques and instruction for improving them, followed by the mechanical removal of plaque and any calcified deposits (tartar or calculus) that are present on the root surfaces. This is accomplished with a cleaning technique known as scaling, root planing or debridement using hand instruments and/or ultrasonic (high frequency vibrational) instruments. Locally applied antimicrobial products or antibiotics might also be recommended during various parts of periodontal treatment to assist in healing and pocket-depth reduction, hopefully eliminating the need for periodontal surgery. Sometimes surgical procedures may be necessary to remove the deep pockets that form between inflamed gum tissue and teeth. There are many different types of surgery to handle a variety of problems. And many times, combinations of procedures are used to attempt to reduce the number of surgeries as well as the cost of treatment.

Periodontal Disease & Your Overall Health

Periodontal Disease Can Affect Your Heart and Body.

Periodontal disease starts in your mouth but has actually been linked to more serious conditions, such as cardio-vascular disease (CVD), diabetes and preterm births. Research has suggested two plausible mechanisms for how gum disease and these other serious medical concerns could be related: moderate to severe periodontal disease increases the level of systemic (bodily) inflammation — a characteristic of all chronic inflammatory diseases. Also, the same bacterial strains that are commonly found in periodontal pockets surrounding diseased teeth have been found in blood vessel plaques of individuals with CVD. Therefore, it may be helpful to reduce periodontal inflammation to reduce systemic inflammation.

Preventive Strategies

The best way to prevent periodontal disease is to brush and floss your teeth effectively every day. Regular dental checkups and professional cleanings every 3 or 4 or 6 months are also an important part of maintaining periodontal health; the instruments and techniques used in these cleanings can reach into areas that your toothbrush and floss can't.

It is also possible to detect early forms of gum disease by evaluating your gingival (gum) tissues, both visually and by examining their attachment levels to the teeth. And the health of your tooth-supporting bone can be assessed by taking dental radiographs (x-rays pictures).

There are other steps you can take: Eating right, reducing stress in your life, and giving up unhealthy habits like smoking will also help ensure that you keep your teeth for a lifetime.

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