Posts for: June, 2020
If you've been dealing with a tooth that needs to be removed—or it's already missing—you may be looking to replace it with a dental implant. And it's a great choice: No other restoration can provide the appearance and function of a real tooth like an implant.
You and your smile are ready for it. The question is, though, are your gums and underlying bone ready? These dental structures play a critical role in an implant's stability and eventual appearance. A problem with them may make placing an implant difficult if not impossible.
An implant requires around 2.0 millimeters of bone thickness surrounding the implant surface for adequate support and to minimize the chances of gum recession. But tooth loss often leads to bone loss that can drop its thickness below this threshold. This can make placing an implant problematic.
Fortunately, though, we may be able to address the lack of sufficient bone through bone grafting. By placing grafting material within the empty socket, we create a scaffold for new bone cells to grow upon. Over time this subsequent growth may be enough to maintain an adequate thickness of bone for an implant to be placed.
The gums may also pose a problem if they've shrunk back or receded from their normal positions, as often happens because of gum disease (which may also have precipitated the tooth loss). Again, grafting procedures can help ensure there's adequate gum coverage for the implant. And healthier gums may also help protect the underlying bone from loss.
There are several techniques for placing gum tissue grafts, depending on how much recession has taken place. One procedure in particular is often used in conjunction with implant placement. A small layer of synthetic collagen material or gum tissue referred to as pa dermal apron is included with the implant when its placed. Settling into the bone socket, this apron helps thicken the gum tissues, as well as preserve the underlying bone.
During your preliminary exams, we'll assess your bone and gum health to determine if we should take any steps like these to improve them. It may add some time to the implant process, but the end result will be well worth it.
If you would like more information on dental implants, please contact us or schedule an appointment for a consultation. You can also learn more about this topic by reading the Dear Doctor magazine article “Immediate Dental Implants.”
For decades, dental x-rays have helped us accurately diagnose and treat a wide array of dental diseases and conditions. But even with recent advances in digital imaging, the traditional x-ray does have one drawback: its two-dimensional view doesn’t always provide the “big picture” that a three-dimensional viewpoint can provide.
But a new type of x-ray technology can do just that: known as cone beam computed tomography (CBCT), these machines record hundreds of digital images as a cone-shaped beam of x-ray energy is projected through a device that rotates around a person’s head. A computer then assembles the images into a single three-dimensional image that can be manipulated on screen to view from various angles. Not only does this provide greater context and detail, it does so with no more radiation exposure than a standard 20-film digital full-mouth x-ray series.
While CBCT hasn’t replaced the traditional x-ray, it’s making its mark in a number of specialized areas of dentistry. The following are just a few of the ways CBCT is improving both accuracy and treatment outcomes.
Orthodontics. CBCT can provide a much more detailed view of the entire jaw; this can help us determine the best locations for realigning teeth safely and effectively.
Dental Implants. With a CBCT scan we can precisely locate nerve canals, sinuses and adjacent teeth before implant surgery to locate the best position for the implant.
TMD Treatment. To help develop the best treatment approach for alleviating the pain and dysfunction of temporo-mandibular joint disease (TMD), a CBCT scan can provide us detailed information on how the disease is affecting a patient’s joints, teeth, sinuses and airway.
Impactions. An impacted tooth can exert damaging pressure against the roots of neighboring teeth. A CBCT scan allows us to observe the impacted tooth from various vantage points to determine the best treatment approach for neighboring teeth, nerve canals and sinuses.
If you would like more information on CBCT technology, please contact us or schedule an appointment for a consultation. You can also learn more about this topic by reading the Dear Doctor magazine article “Getting the Full Picture With Cone Beam Dental Scans.”
Periodontal (gum) disease often involves more than gum inflammation. The real danger is what this bacterial infection may be doing to tissues beneath the gum line—including tooth roots and supporting bone.
Gum disease can do extensive damage to the forked areas where the roots separate from the main tooth body. If one of these areas, known as a furcation, becomes infected, the associated bone may begin to diminish. And you may not even know it's happening.
Fortunately, we may be able to detect a furcation involvement using x-rays and tactile (touch) probing. The findings from our examination will not only verify a furcation involvement exists, but also how extensive it is according to a formal classification system that dentists use for planning further treatment.
A Class I involvement under this system signifies the beginning of bone loss, usually a slight groove in the bone. Class II signifies two or more millimeters of bone loss. Class III, also called a “through and through,” represents bone loss that extends from one side of the root to the other.
The class of involvement will guide how we treat it. Obviously, the lower the class, the less extensive that treatment will be. That's why regular dental checkups or appointments at the first sign of gum problems are a must.
The first-line treatment for furcation involvements is much the same as for gum disease in general: We manually remove bacterial plaque, the main source of infection, from the root surfaces using hand instruments and ultrasonic equipment. This is often followed by localized antibiotics to further disinfect the area and stymie the further growth of the furcation involvement.
We also want to foster the regrowth of lost tissue, if at all possible. Classes II and III involvements may present a challenge in this regard, ultimately requiring grafting surgery to stimulate tissue regeneration.
The best approach by far is to prevent gum disease, the ultimate cause for a furcation involvement. You can reduce your chances of gum disease by brushing and flossing daily to remove disease-causing plaque. Regular dental cleanings and checkups, at least every six months, help round out this prevention strategy.
A furcation involvement could ultimately endanger a tooth's survival. We can stop that from happening—but we'll have to act promptly to achieve the best results.
If you would like more information on treating gum disease, please contact us or schedule an appointment for a consultation. You can also learn more about this topic by reading the Dear Doctor magazine article “What are Furcations?”