Oral fibrous hyperplasia is a localized overgrowth of connective tissue that develops in response to repeated irritation. This irritation may come from factors such as biting the cheek, rough tooth edges, dental restorations, or ill-fitting dentures. The tissue responds by producing excess fibrous material, resulting in a firm, raised lesion. Over time, the lesion typically becomes stable in size and may appear smooth, dome-shaped, and similar in color to the surrounding tissue. In some cases, it may become slightly paler due to increased keratin or mild surface irritation. These growths are usually slow-growing and non-cancerous. If the source of irritation continues, the lesion may persist or gradually enlarge. While oral fibrous hyperplasia does not transform into cancer, it can interfere with normal oral function or become repeatedly traumatized. Removal of the irritation source is important to prevent recurrence after treatment.
Understanding
Oral Fibrous Hyperplasia
Clinical Significance
Can lead to persistent oral lesion, discomfort, interference with chewing or speaking, and repeated irritation if untreated.
Common Causes
Chronic cheek or lip biting, ill-fitting dentures, sharp tooth edges, rough dental restorations, orthodontic appliances
Signs & Symptoms
Possibly none, or firm smooth lump, painless growth, similar color to surrounding tissue, occasional irritation or ulceration if traumatized
How It's Detected
Clinical exam, visual inspection, patient history of irritation, biopsy to confirm diagnosis if needed
Treatment Options
Removal of source of irritation, surgical excision, laser removal, monitoring, no treatment in selected cases
Benefits to Treatment
Removes lesion, improves comfort and function, prevents recurrence, allows definitive diagnosis through biopsy if performed
Prevention
Avoid chronic irritation, properly fitted dental appliances, smoothing rough tooth surfaces, regular dental visits, addressing habits like cheek biting
Frequently Asked Questions
Is oral fibrous hyperplasia cancerous?
No, oral fibrous hyperplasia is a benign condition and is not considered cancer. It develops as a reactive process to chronic irritation rather than uncontrolled or malignant cell growth. In many cases, the lesion remains stable and does not spread to other areas. However, because some oral lesions can appear similar, a dentist may recommend a biopsy to confirm the diagnosis and rule out other conditions.
Will oral fibrous hyperplasia go away on its own?
Oral fibrous hyperplasia typically does not go away on its own, especially if the source of irritation remains. The growth is made of fibrous tissue, which does not shrink easily without intervention. In many cases, removing the cause of irritation can prevent further growth, but the existing lesion may still require removal. A dental evaluation can help determine whether monitoring or treatment is appropriate.
What does oral fibrous hyperplasia look like?
Oral fibrous hyperplasia usually appears as a small, firm, smooth bump inside the mouth. It is often similar in color to the surrounding tissue, though it may appear slightly lighter. The surface is typically rounded and well-defined. In some cases, the lesion may become irritated or develop a sore if it is repeatedly bitten or rubbed. Because appearance alone cannot confirm the diagnosis, clinical evaluation is important.
How is oral fibrous hyperplasia treated?
Treatment usually involves removing the source of irritation and, in many cases, surgically removing the lesion. The procedure is typically straightforward and may be performed using a scalpel or laser. Once removed, the tissue may be sent for biopsy to confirm the diagnosis. Addressing the underlying cause, such as adjusting a denture or smoothing a tooth, helps reduce the chance of recurrence. ICD-10-CM Codes: K13.79 Other lesions of oral mucosa