Frenectomy Types: Labial vs Lingual Procedures

A frenectomy is a minor surgical procedure that removes or releases a frenum, the small fold of tissue that connects the lips, cheeks, or tongue to the underlying structures. When a frenum is abnormally positioned, large, or tight, it can interfere with speech, feeding, oral hygiene, the eruption...

A frenectomy is a minor surgical procedure that removes or releases a frenum, the small fold of tissue that connects the lips, cheeks, or tongue to the underlying structures. When a frenum is abnormally positioned, large, or tight, it can interfere with speech, feeding, oral hygiene, the eruption of teeth, and the stability of orthodontic or prosthetic treatment. Frenectomies are among the most common soft tissue procedures in dental practice, and they vary according to the frenum being treated. This article compares the labial and lingual frenectomy, their indications, and the techniques used to perform them.

Frenotomy versus Frenectomy

It is important to distinguish between two related procedures. A frenotomy is a simple incision or release of the frenum, in which the connective tissue attachment is divided without removing the whole fold. It is a quick, minimally invasive procedure, often performed with scissors or a laser, and it is especially suited to newborns and infants with a tight lingual frenum, where its simplicity and speed are an advantage. Frenotomy aims to release the restriction while preserving as much tissue as possible.

A frenectomy, by contrast, is the complete excision of the frenum, including its attachment to the underlying periosteum, so that the fold is removed and the area heals as a flat, smooth surface. Frenectomy is indicated when the frenum is large or causing recurrent problems, when it poses a risk to orthodontic stability, or when its excision is required to eliminate a diastema or to allow proper prosthetic seating. The choice between the two procedures depends on the diagnosis, the anatomy, and the therapeutic goal.

Labial Frenectomy

The labial frenum is the band of tissue connecting the upper lip to the maxillary gingiva, and it is most often treated when it is high and thick. A hypertrophic labial frenum can cause a midline diastema by maintaining a gap between the central incisors, and it can be a source of relapse after orthodontic space closure. It may also create a diastema that intrudes into the gingival margin, produce a loss of the papilla, or cause difficulty in toothbrushing. Labial frenectomy is commonly performed when orthodontic closure of the midline space is planned or completed.

The procedure begins with local anesthesia, followed by an incision that separates the frenum from the gingiva and the underlying bone. The attachment is excised, and the wound is either left to heal by secondary intention, closed with sutures, or, with a laser, treated with minimal bleeding and no suturing. After excision, the tension on the gingival margin is released, which helps the interdental tissue to mature and closes the gap naturally or allows orthodontic space to remain closed.

Lingual Frenectomy

The lingual frenum connects the underside of the tongue to the floor of the mouth, and a short or tight frenum, described as an ankyloglossia or tongue-tie, can restrict the movement of the tongue. In infants, this restriction interferes with breastfeeding, producing poor latch and maternal pain, and in older children and adults it can affect speech articulation, the ability to sweep the tongue across the teeth for hygiene, and the stability of a lower denture. Lingual frenectomy or frenotomy releases the tongue and restores its mobility, with significant benefits for function and comfort.

When a frenectomy is performed, the fibrous attachment is excised along the floor of the mouth, taking care to avoid the sublingual ducts and the lingual nerve.

Surgical Techniques and Aftercare

Frenectomy can be performed with a scalpel, scissors, or a laser, and the choice of instrument affects the operative experience and the healing. The scalpel technique is precise and inexpensive, but it produces bleeding and often requires sutures. Laser frenectomy offers the advantages of a bloodless field, no sutures, reduced pain, and faster recovery, since the laser seals the small vessels and sterilizes the wound, and it has become increasingly popular, especially in pediatric patients.

Aftercare is simple. Analgesics manage mild discomfort, and the patient is advised to keep the area clean, to avoid trauma during eating, and to perform gentle stretching exercises where recommended to prevent reattachment and to preserve the gained range of motion. In infants, feeding resumes immediately after frenotomy. Follow-up within a week confirms healing and allows the assessment of any residual restriction, ensuring that the functional benefit of the procedure is fully realized.

Complications and Considerations

Complications of frenectomy are uncommon and are usually minor. Bleeding is controlled by pressure or cautery, and infection is rare with proper hygiene and aseptic technique. Scarring or reattachment of the frenum can occur, particularly if the excision is incomplete or if the patient does not perform the recommended stretching exercises, and this can undermine the result of the treatment. Damage to adjacent structures is avoided by careful technique, with particular attention to the sublingual ducts and the lingual nerve during frenectomy of the tongue.

The timing of the procedure deserves consideration. Labial frenectomy is often best performed in coordination with orthodontic treatment, since premature excision may result in a small scar that limits hygiene while the gap persists. Lingual frenectomy in older patients may require a period of speech therapy to retrain articulation. When the indication is clear, the anatomy is respected, and the aftercare is followed, both labial and lingual frenectomy are simple, safe, and highly effective procedures that resolve the functional and esthetic problems caused by a restrictive frenum.

Clinical Key Points

- Frenotomy is a simple release; frenectomy is complete excision.

- Labial frenectomy is indicated for midline diastema and hygiene problems.

- Lingual frenectomy or frenotomy treats ankyloglossia and its functional effects.

- Laser techniques offer a bloodless field and faster recovery.

- Care must be taken near the sublingual ducts and lingual nerve.

- Stretching exercises after surgery prevent reattachment.

Conclusion

Frenectomy is a versatile and valuable procedure in modern dental practice, addressing a small fold of tissue that can nevertheless cause significant problems with feeding, speech, tooth alignment, denture stability, and periodontal health. Whether the clinician performs a labial frenectomy to close a diastema, a lingual frenotomy to release a tongue-tie in an infant, or a laser procedure for a patient who wants faster recovery, the principles are the same: accurate diagnosis, careful surgical technique, and thoughtful aftercare.