Gum Recession & Gum Grafting

Gingival recession (receding gums) refers to the progressive loss of gum tissue, which can eventually result in tooth root exposure if left untreated. Gum recession is most common in adults over the age of 40, but the process can begin in the teenage years.

Gum recession can be difficult to self-diagnose in its earlier stages because the changes often occur asymptomatically and gradually. Regular dental check ups will help to prevent gum recession and assess risk factors.

The following symptoms may be indicative of gum recession:

• Sensitive teeth – When the gums recede enough to expose the cementum protecting the tooth root, the dentin tubules beneath will become more susceptible to external stimuli.
  Visible roots – This is one of the main characteristics of a more severe case of gum recession.
• Longer-looking teeth – Individuals experiencing gingival recession often have a “toothy” smile. The length of the teeth is perfectly normal, but the gum tissue has been lost, making the teeth appear longer.
• Halitosis, inflammation, and bleeding – These symptoms are characteristic of gingivitis or periodontal disease. A bacterial infection causes the gums to recede from the teeth and may cause tooth loss if not treated promptly.

Causes of Gum Recession

Gum recession is an incredibly widespread problem that dentists diagnose and treat on a daily basis. It is important to thoroughly examine the affected areas and make an accurate diagnosis of the actual underlying problem. Once the cause of the gum recession has been determined, surgical and non-surgical procedures can be performed to halt the progress of the recession and prevent it from occurring in the future.

The most common causes of gingival recession are:

• Overaggressive brushing – Over-brushing can almost be as dangerous to the gums as too little. Brushing too hard or brushing with a hard-bristled toothbrush can erode the tooth enamel at the gum line and irritate/inflame gum tissue.
• Poor oral hygiene – When brushing and flossing are performed improperly or not at all, a plaque build up can begin to affect the teeth. The plaque contains various bacterial toxins which can promote infection and erode the underlying jawbone.
• Chewing tobacco – Any kind of tobacco use has devastating effects on the entire oral cavity, chewing tobacco in particular. It aggravates the gingival lining of the mouth and causes gum recession when used continuously.
• Periodontal disease – Periodontal disease can be a result of improper oral hygiene or caused by systemic diseases such as diabetes. The excess sugars in the mouth and narrowed blood vessels experienced by diabetics create a perfect environment for oral bacteria. The bacterium causes an infection which progresses deeper and deeper into the gum and bone tissue, eventually resulting in tooth loss.

Treatment of Gum Recession

Every case of gum recession is slightly different, therefore many treatments are available. The nature of the problem which caused the recession to begin with needs to be addressed first.

If overly aggressive brushing techniques are eroding the gums, a softer toothbrush and a gentler brushing technique should be used. If poor oral hygiene is a problem, prophylaxis (professional dental cleaning) may be recommended to rid the gum pockets of debris and bacteria. In the case of a severe calculus (tartar) build-up, scaling and root planing will be performed to heal gingival inflammation and clean the teeth.

Once the cause of the gingival recession has been addressed, surgery of a more cosmetic or restorative nature might be recommended. Gum tissue regeneration and gum grafting are two excellent ways to restore natural symmetry to the gums and make the smile look more aesthetically pleasing.

A gum graft (also known as a gingival graft or periodontal plastic surgery), is a collective name for surgical periodontal procedures that aim to cover an exposed tooth root surface with grafted oral tissue.

Exposed tooth roots are usually the result of gingival recession due to periodontal disease. There are other common causes, including overly aggressive brushing and trauma.

Here are some of the most common types of gum grafting:

• Free gingival graft – This procedure is often used to thicken gum tissue. A layer of tissue is removed from the palate and relocated to the area affected by gum recession. Both sites will quickly heal without permanent damage.

• Subepithelial connective tissue graft – This procedure is commonly used to cover exposed roots. Tissue is removed fairly painlessly from the outer layer of the palate and relocated to the site of gum recession.
• Acellular dermal matrix allograft – This procedure uses medically processed, donated human tissue as a tissue source for the graft. The advantage of this is procedure is that there is no need for a donor site from the patient’s palate (and thus, less pain).
• Pedicle graft – This type of graft involves the “sharing” of soft tissue between the affected site and adjacent gum. A flap of tissue is partially cut away and moved sideways to cover the root. The results of this type of graft are excellent because the tissue that is moved to the adjacent area includes blood vessels that are left in place.

Soft tissue grafting is often necessary to combat gum recession. Periodontal disease, trauma, aging, over brushing, and poor tooth positioning are the leading causes of gum recession which can lead to tooth-root exposure in severe cases.

When the roots of the teeth become exposed, eating hot and cold foods can be uncomfortable, decay is more prevalent and the aesthetic appearance of the smile is altered. The main goal of soft tissue grafting is to either cover the exposed root or to thicken the existing gum tissue in order to halt further tissue loss.

What does soft tissue grafting treatment involve?

Initially, deep cleaning will be performed both above and below the gum line to clear the teeth and roots of calculus (tartar). The grafting procedure itself will generally be performed under local anesthetic, but this will depend on the size of the areas receiving grafts. A small incision will be made at the recipient site in order to create a small pocket. A split thickness incision is made in this pocket and the donor tissue is placed between the two sections of this area. The donor tissue strip is generally larger than the incision, so some excess will be apparent.

Platelet rich growth factors which stimulate natural tissue growth and promote good healing may be applied to the site before suturing. In addition, tissue-stimulating proteins may be added to encourage quicker tissue growth. Finally, the wound site will be sutured to prevent shifting, and surgical material will be placed to protect the sensitive area. Gum uniformity and substantial healing will take place in the first six weeks after the procedure.

Reasons for gum grafting

Gum grafting is a common periodontal procedure. Though the name might sound frightening, the procedure is commonly performed with excellent results.

Here are some of the major benefits associated with gum grafting:

• Reduced sensitivity – When the tooth root becomes exposed, eating or drinking hot or cold foods can cause extreme sensitivity to the teeth. Gum grafting surgery permanently covers the exposed root, helps reduce discomfort, and restores the good health of the gums.

• Increased comfort – Root exposure can cause substantial pain and discomfort. Eating hot, cold or even warm foods can cause severe discomfort. Soft tissue grafts cover the exposed root, decrease sensitivity and restore good health to the gum area.
• Improved appearance – Periodontal disease is characterized by gum recession and inflammation. Gum recession and root exposure can make the teeth look longer than normal and the smile to appear “toothy.” Gum grafting can make the teeth look shorter, more symmetrical and generally more pleasing to look at. In addition, adjacent tissue can be enhanced and augmented during the procedure for aesthetic purposes.
• Improved gum health – Periodontal disease can progress and destroy gum tissue very rapidly. If left untreated, a large amount of gum tissue can be lost in a short period of time. Gum grafting can help halt tissue and bone loss; preventing further problems and protecting exposed roots from further decay.

What does gum grafting treatment involve?

Once the need for gum grafting surgery has been determined, there are several treatments the dentist will want perform before gum grafting takes place. First, the teeth must be thoroughly cleaned supra and subgingivally to remove calculus (tartar) and bacteria. The dentist can also provide literature, advice and educational tools to increase the effectiveness of homecare and help reduce the susceptibility of periodontal disease in the future.

The gum grafting procedure is usually performed under local anesthetic. The exact procedure will depend much on whether tissue is coming from the patient’s palate or a tissue bank.

Initially, small incisions will be made at the recipient site to create a small pocket to accommodate the graft. Then a split thickness incision is made and the connective tissue graft is inserted into the space between the two sections of tissue. The graft is usually slightly larger than the recession area, so some excess will be apparent.

Sutures are often placed to further stabilize the graft and to prevent any shifting from the designated site. Surgical material is used to protect the surgical area during the first week of healing. Uniformity and healing of the gums will be achieved in approximately six weeks.

If you have any questions or concerns about periodontal disease, periodontal treatments, or gum recession, please contact our office.