Untreated dental caries can lead to a more serious inflammatory process in the oral cavity, namely inflammation of the dental pulp (pulpitis). The pulp is the tissue that fills the cavity of the tooth and follows its shape.
A dental granuloma is a complication that develops as a result of caries, trauma, or inflammation of the periodontium (the complex of tissues surrounding the tooth). It appears as a small rounded formation located in the area of the tooth root.
What causes a dental granuloma, and how is it diagnosed and treated?
How Does a Granuloma Develop?
If caries is left untreated, complications may occur. If an affected tooth suddenly stops hurting, it does not mean that the problem has “gone away.”
After a period of pain, the nerve inside the dental pulp undergoes necrosis. The tooth no longer hurts, but the carious lesion remains. The pulp becomes filled with bacteria, which multiply and eventually reach the root of the tooth.
As a result, the inflammatory process spreads into the alveolus, that is, the jawbone. This is where a granuloma develops, appearing as a rounded sac-like formation.
The danger of a granuloma lies in the fact that it may remain asymptomatic for a period of time. However, as bacteria accumulate inside it, it can eventually cause severe pain, swelling, and redness of the gums.
A dental granuloma may develop in different areas of the root, but it most commonly occurs at the apex (tip) of the tooth root.
Causes of Dental Granuloma
Most often, a dental granuloma develops as a complication of pulpitis and results from the spread of infection from the inflamed nerve passing through the root of the tooth.
Another cause of dental granuloma is inflammation of the tissues surrounding the tooth, known as periodontitis.
A fractured tooth and other dental injuries may also lead to the development of a granuloma.
Infection may also occur due to inadequate adherence to aseptic and antiseptic principles during pulp removal procedures, that is, during root canal treatment.
Factors that may trigger an acute clinical manifestation of a dental granuloma include hypothermia, colds, stressful situations, sudden climate changes, physical exertion, and pressure.
Symptoms of Dental Granuloma
A dental granuloma is a localized inflammatory lesion with a thin wall.
In the area of the granuloma, granulation tissue actively proliferates, replacing cells that have died as a result of inflammation. This process causes the granuloma to gradually increase in size. However, dental granulomas usually do not reach large dimensions and may remain unnoticed by both the patient and the dentist.
In chronic asymptomatic cases, a dental granuloma may transform into a jaw cyst. A dense capsule forms in the gum tissue, containing necrotic masses and dead bacteria.
Such granulomas are often discovered only during dental radiographic examinations.
As the granuloma enlarges, pain and gum swelling may appear. Suppuration and tooth discoloration are also possible. Purulent discharge may develop between the tooth and the gum.
Patients may feel as though the tooth has become larger and may experience discomfort when touching the crown of the tooth while chewing hard foods.
Suppuration of a dental granuloma may be accompanied by the development of odontogenic periostitis (commonly known as a dental abscess or “flux”). Body temperature may rise, and the patient’s general condition may deteriorate.
The growth of a dental granuloma can lead to destruction of the tooth root apex, resulting in tooth loss. The spread of infection from the granuloma into surrounding soft tissues may lead to the formation of a localized abscess or a diffuse purulent infection known as phlegmon.
If the bone becomes involved, osteomyelitis of the jaw may develop, which is a purulent infectious-inflammatory process. Because a dental granuloma represents a chronic source of infection, complications may extend beyond dentistry. The spread of infectious agents through the bloodstream may contribute to the development of sinusitis, pyelonephritis, infectious myocarditis, and even sepsis.
These complications can be avoided through timely treatment.
Diagnosis
In many cases, a granuloma is detected on a dental X-ray, where it appears as a dark, usually round area of bone surrounding the tooth root.
A routine clinical examination may not always reveal a granuloma, especially when it is small.
Dental granulomas can also be diagnosed using radiovisiography, which involves a special device called a radiovisiograph. This technology converts the X-ray image into a digital image displayed on a monitor.
How Is It Treated?
Treatment of the affected tooth’s root canals is the primary method for eliminating a dental granuloma.
If left untreated, a granuloma may continue to grow and eventually transform into a cyst, a benign lesion that often requires surgical removal.
Removal of a cyst is frequently combined with removal of the affected root apex (apicoectomy).
When odontogenic periostitis or a maxillofacial abscess develops, the infected area is surgically opened and drained.
Although several effective treatment methods are available today, it is not always possible to save the affected tooth.
The choice between conservative and surgical treatment depends on the size of the granuloma, the condition of the tooth tissues, the presence or absence of complications, and other clinical factors.
Prevention
Prevention of dental granulomas is closely related to the prevention of dental caries.
Therefore, regular dental examinations and radiographic monitoring are essential measures to ensure that granulomas never have the opportunity to develop.
This article does not replace a medical consultation. For complete and personalized information, please consult your dentist.