Tooth Extractions
Tooth extractions, or the removal of one or more teeth, are usually used as a last resort in dentistry, as keeping the natural tooth in the mouth is ideal. There are many reasons why single or multiple extractions may be performed, including pervasive tooth decay, the impaction of wisdom teeth, or the need to create space for orthodontic devices.
The most significant short-term benefit associated with tooth extraction is the elimination of pain. If a tooth is severely decayed or an infection is present, removing the affected tooth almost immediately alleviates discomfort. However, it should be noted that further procedures are necessary to replace the extracted tooth. Leaving a gap is not a viable option as the other teeth tend to twist out of alignment to fill the space.
Why might I need to have a tooth extraction?
Tooth extractions are incredibly common procedures. It should be reiterated that an extraction is used as a procedure of last resort, when nothing more can be done to save the tooth.
Here is a brief overview of some of the main reasons for tooth extraction:
Deep decay – This is easily the most common reason for tooth extraction, accounting for around two-thirds of all extraction procedures performed. When decay affects the surface of the tooth as well as the pulp, root canal procedures cannot be performed. Root canal therapy is only viable where the general structure of the tooth is in stable condition.
Extra teeth –There are a variety of explanations associated with extra teeth, but most commonly they are baby teeth that do not shed. Extra teeth take up space on the arch, causing nearby teeth to twist out of place. A tooth extraction is necessary in this case to provide enough space for the teeth to properly realign.
Periodontal disease – Often teeth have to be extracted because the gums and underlying bone are so severely eroded that they can no longer hold the tooth in place securely. The cause of bone and gum recession is almost always advanced periodontal disease (gum disease). Poor bone density means that the chance of restoring the natural tooth is minimal.
Prior to braces – Traditional orthodontic braces require enough space to for the teeth to move into ideal alignment. If space cannot be created naturally, a tooth may be extracted as an alternative.
Fractured teeth – Fortunately, dentists are able to save injured teeth in most circumstances with the aid of root canal therapy. However, there are some instances where the tooth has become fractured in a way that makes repair impossible. Your oral health professional will remove the tooth and use a prosthetic replacement in most cases.
How is the extraction procedure performed?
Generally, tooth extraction can be simple in nature or involve more complex surgical processes. Simple extractions are performed on fully emerged teeth after applying local anesthetic to the treatment site. Instruments are used to elevate the tooth and then sever the periodontal ligament. The tooth is then carefully removed with dental forceps.
Surgical extractions are performed on teeth that are either invisible or inaccessible, like un-erupted wisdom teeth. An incision is usually made in the gum tissue and a drill is used to precisely remove some of the adjacent bone tissue. Sometimes, the tooth has to be split into several pieces to completely remove it.
If you have any questions or concerns about tooth extraction, please contact your oral health care provider.
Wisdom Teeth Extractions
Third molars, commonly referred to as wisdom teeth, are usually the last four of 32 teeth to erupt (surface) in the mouth, generally making their appearance between the ages of 17 to 25. They are located at the back of the mouth (top and bottom), near the entrance to the throat. The term “wisdom” stems from the idea that the molars surface at a time typically associated with increased maturity or “wisdom”.
In most cases, inadequate space in the mouth does not allow the wisdom teeth to erupt properly and become fully functional. When this happens, the tooth can become impacted (stuck) in an undesirable or potentially harmful position. If left untreated, impacted wisdom teeth can contribute to infection, damage to other teeth, and possibly cysts or tumors.
There are several types, or degrees, of impaction based on the actual depth of the teeth within the jaw:
Soft Tissue Impaction: The upper portion of the tooth (the crown) has penetrated through the bone, but the gingiva (gum) is covering part or all of the tooth’s crown and has not positioned properly around the tooth. Because it is difficult to keep the area clean, food can become trapped below the gum and cause an infection and/or tooth decay, resulting in pain and swelling.
Partial Bony Impaction: The tooth has partially erupted, but a portion of the crown remains submerged below the gum and surrounding jawbone. Again, because it is difficult to keep the area clean, infection will commonly occur.
Complete Bony Impaction: The tooth is completely encased by jawbone. This will require more complex removal techniques.
Reasons to remove wisdom teeth
While not all wisdom teeth require removal, wisdom teeth extractions are most often performed because of an active problem such as pain, swelling, decay or infection, or as a preventative measure to avoid serious problems in the future. If impaction of one or more wisdom teeth is present, and left untreated, a number of potentially harmful outcomes can occur, including:
- Damage to nearby teeth: Second molars (the teeth directly in front of the wisdom teeth) can be adversely affected by impacted wisdom teeth, resulting in tooth decay (cavities), periodontal disease (gum disease) and possible bone loss.
- Disease: Although uncommon, cysts and tumors can occur in the areas surrounding impacted wisdom teeth.
- Infection: Bacteria and food can become trapped under the gum tissue, resulting in an infection. The infection can cause considerable pain and danger.
- Tooth Crowding: It has been theorized that impacted wisdom teeth can put pressure on other teeth and cause them to become misaligned (crowded or twisted). This theory isn’t universally accepted by all dental professionals, and it has never been validated by any scientific studies.
Wisdom teeth examination
As with any dental procedure, your dentist will want to initially conduct a thorough examination of the wisdom and surrounding teeth. Panoramic or digital X-rays will be taken in order for your dentist to evaluate the position of the wisdom teeth and determine if a current problem exists, or the likelihood of any potential future problems. The X-rays can also expose additional risk factors, such as deterioration or decay of nearby teeth. Early evaluation and treatment (typically in the mid-teen years) is recommended in order to identify potential problems and to improve the results for patients requiring wisdom teeth extractions. Only after a thorough examination can your dentist provide you with the best options for your particular case.
What does the removal of wisdom teeth involve?
Wisdom teeth removal is a common procedure, generally performed under local anesthesia, intravenous (IV) sedation, or general anesthesia by a specially trained dentist in an office surgery suite. The surgery does not require an overnight stay, and you will be released with post-operative instructions and medication (if necessary), to help manage any swelling or discomfort.
Bone Grafting
Bone grafting is often closely associated with dental restorations such as bridge work and dental implants. In the majority of cases, the success of a restoration procedure can hinge on the height, depth, and width of the jawbone at the implant site. When the jawbone has receded or sustained significant damage, the implant(s) cannot be supported on this unstable foundation and bone grafting is usually recommended for the ensuing restoration.
There are several major factors that affect jaw bone volume:
- Periodontal Disease– Periodontal disease can affect and permanently damage the jaw bone that supports the teeth. Affected areas progressively worsen until the teeth become unstable.
- Tooth Extraction– Studies have shown that patients who have experienced a tooth extraction subsequently lose 40-60% of the bone surrounding the extraction site during the following three years. Loss of bone results in what is called a “bone defect”.
- Injuries and Infections– Dental injuries and other physical injuries resulting from a blow to the jaw can cause the bone to recede. Infections can also cause the jaw bone to recede in a similar way.
Reasons for bone grafts
Bone grafting is a highly successful procedure in most cases. It is also a preferable alternative to having missing teeth, diseased teeth, or tooth deformities. Bone grafting can increase the height or width of the jawbone and fill in voids and defects in the bone.
There are essentially two basic ways in which bone grafting can positively impact the health and stability of the teeth:
Jaw Stabilization – Bone grafting stabilizes and helps restore the jaw foundation for restorative or implant surgery. Deformities can also be corrected and the restructuring of the bone can provide added support.
Preservation – Bone grafting can be used to limit or prevent bone recession following a tooth extraction, periodontal disease, or other invasive processes.
Oral Examination
Initially, the dentist will thoroughly examine the affected area in order to assess the general condition of the teeth and gums. If periodontal disease is present or the adjacent teeth are in poor condition, these factors will be fully addressed before the bone grafting procedure can begin. The dentist will also recommend panoramic x-rays in order to assess the precise depth and width of the existing bone. On occasion, a CAT scan may be recommended to determine the bone condition. Depending on these results, the dentist may also anesthetize the area and explore into the gum in order to determine what kind and how much bone is required.
What Does Bone Grafting Involve?
There are several types of bone grafts. Your dentist will determine the best type for your particular condition.
Autogenous Bone Graft – Harvested from the patient’s own body (usually from the posterior part of the lower jaw or the chin). This method is usually preferred because it produces the most predictable results.
Allograft Bone Graft – Cadaver or synthetic bone is used in this type of graft.
Xenograft – Cow bone is used in this type of graft.
The bone grafting procedure can often take several months to complete. Bone is typically harvested from your own body (or on rare occasions obtained from a “bone bank”) and added to the affected site. This bone will fuse with the existing bone and the migration of cells will cause firm adhesion and cell growth. Supplementing the jaw with bone will result in greater bone mass to help support and anchor the implant(s).
During the surgery, the dentist will numb the grafting and extraction sites using local anesthetic. A small incision will be made to prepare the site for the new bone and it will be anchored into place. On occasion, a synthetic membrane may be used to cover the new bone. This membrane prevents soft tissue and bacterial invasions, and encourages new bone growth. The surgery does not require an overnight stay, and you will be provided with comprehensive instructions for your post-operative care. The dentist will prescribe medications to help manage infection, discomfort and swelling.
Dental Implants
Dental implants are a great way to replace missing teeth and also provide a fixed solution to having removable partial or complete dentures. Implants provide excellent support and stability for these dental appliances.
Dental implants are artificial roots and teeth (usually titanium) that are surgically placed into the upper or lower jaw bone by a dentist or Periodontist – a specialist of the gums and supporting bone. The teeth attached to implants are very natural looking and often enhance or restore a patient’s smile!
Dental implants are strong and durable and will last many years. On occasion, they will have to be re-tightened or replaced due to normal wear.
Reasons for dental implants:
- Replace one or more missing teeth without affecting adjacent teeth.
- Resolve joint pain or bite problems caused by teeth shifting into missing tooth space.
- Restore a patient’s confident smile.
- Restore chewing, speech, and digestion.
- Restore or enhance facial tissues.
- Support a bridge or denture, making it more secure and comfortable.
What does getting dental implants involve?
The process of getting implants requires a number of visits over several months.
X-rays and impressions (molds) are taken of the jaw and teeth to determine bone, gum tissue, and spacing available for an implant. While the area is numb, the implant will be surgically placed into the bone and allowed to heal and integrate itself for up to six months. Depending on the type of implant, a second surgery may be required in order to place the “post” that will hold the artificial tooth in place. With other implants the post and anchor are already attached and placed at the same time.
After several weeks of healing the artificial teeth are made and fitted to the post portion of the anchor. Because several fittings may be required, this step may take one to two months to complete. After a healing period, the artificial teeth are securely attached to the implant, providing excellent stability and comfort to the patient.
You will receive care instructions when your treatment is completed. Good oral hygiene and eating habits, alongside regular dental visits, will aid in the life of your new implant.
If you have questions about dental implants or would like to schedule a consultation, please contact our office.
Apicoectomy
The teeth are held firmly in place by strong roots that extend into the jawbone. Molars and premolars tend to have several roots, whereas the front incisors only have a single root. The end or tip of each root is termed the apex. The apex is where the nerves and blood vessels enter the tooth and aids in the delivery of blood to the crown (the part of the tooth you can see in your mouth).
A root canal treatment refers to the cleaning of the canals and the removal of infected and inflamed tissue within the root. When the inflammation or infection persists after the root canal treatment, an apicoectomy may be required. An apicoectomy is essentially the removal of the apex (or root tip), followed by a filling procedure to seal the root from further infection. When left untreated, infected roots can damage other teeth, spread infection, and cause regression of the jawbone.
Reasons for an apicoectomy
Infected and inflamed soft tissue around the root of a tooth can be exceptionally painful and debilitating. The purpose of an apicoectomy is to eliminate the infection in the tissue and to ultimately preserve the function of the tooth and save it from extraction. An apicoectomy will rarely be considered by the surgeon unless a prior root canal treatment has failed.
There are several reasons why an apicoectomy may be necessary:
- Small Adjoining Root Branches– Roots are extremely complex and can contain many tiny branches. If these tiny branches cannot be cleaned and sealed when the root canal treatment is performed, inflammation can persist.
- Blocked Root Canal– In some cases, the surgeon is unable to effectively clean a root canal because it is blocked by a fractured file left behind from prior root canal treatment. Infection and debris can quickly affect adjacent teeth.
- Narrow or Curved Root Canals– When the root canal is poorly shaped, the endodontic files cannot reach the root tip. Continuing infection or re-infection can then occur.
What does getting an apicoectomy involve?
Prior to the surgery, the surgeon will generally prescribe an antibiotic or anti-inflammatory medication to treat the underlying infection. Panoramic X-rays will then be taken to enable the surgeon to plan the apicoectomy, which will be performed under local anesthesia.
The surgeon will make a small incision in the gum and expose the root by lifting away the gum. In some cases, a tiny fraction of the jawbone may be removed to properly expose the root. The edge of the root tip and any infected connective tissue will be removed using ultrasonic instruments. The root will be sealed using a retrofill (filling material), and the surgeon will suture the gum with several stitches.
This surgery does not require an overnight stay, and full aftercare instructions and pain medications will be provided as needed. After several days, the surgeon will remove the stitches, and the connective tissues will fully heal several months after the procedure.
If you are experiencing any symptoms, such as pain or swelling associated with a tooth that has had a root canal, we encourage you to contact our office immediately.