Mucogingival Surgery: Grafts, Frenectomy, Vestibuloplasty

Mucogingival surgery is the branch of gum surgery that fixes the soft tissue around teeth: the position of the gumline, the amount of tough attached gum, and the muscles and folds that pull on it. Its main procedures are gum grafts (adding tissue), frenectomy (releasing a tight lip or tongue tie) and vestibuloplasty (deepening a shallow gum pocket area).

This matters because teeth need a band of firm, attached gum to resist brushing and chewing forces; without it, the gum keeps receding and roots stay exposed. These surgeries rebuild that protection, cover exposed roots to stop sensitivity, and create the stable tissue that implants and dentures also need.

Key Concepts

• Attached gingiva: the firm, pink, stippled gum tightly bound to the bone; at least 2 mm of it (with 1 mm firmly attached) is considered adequate around a tooth.
• Free gingival graft (FGG): a thin layer of gum taken from the palate and stitched onto an area with no attached gum, to create a new tough band.
• Connective tissue graft (CTG): the deeper connective layer from under the palate's surface, slid under the existing gum; the gold standard for covering exposed roots.
• Frenum: the fold of tissue connecting lip or cheek to the gum; a high or thick frenum can pull the gum away from the tooth.
• Frenectomy: complete removal of the frenum; frenotomy is a partial release.
• Vestibuloplasty: deepening the vestibule (the trough between lip/cheek and gum) so dentures fit better or grafted tissue has room to heal.

How It Works

A connective tissue graft for root coverage follows these steps:

1. Site preparation: the exposed root is cleaned and smoothed, and the recipient gum is lifted to create a pouch.
2. Graft harvest: under local anaesthesia, a 1 to 1.5 mm thick layer of connective tissue is taken from the palate through a small trapdoor incision.
3. Placement: the graft is slid into the pouch so it covers the exposed root completely.
4. Suturing: fine stitches hold the graft still; movement in the first days is the main cause of failure.

Worked Example

A 30-year-old patient has 4 mm of gum recession on an upper canine with sharp sensitivity to cold:

1. Measurements: recession depth 4 mm, width 3 mm, and only 1 mm of attached gum remains — too little for long-term stability.
2. A connective tissue graft measuring 8 mm by 6 mm is harvested from the palate to cover the 4 by 3 mm defect with overlap on all sides.
3. At the 6-month review, 3.5 mm of the 4 mm recession is covered, giving 3.5 ÷ 4 = 87.5 percent root coverage.
4. Cold sensitivity is gone,

Common Misconceptions

• "Gum grafts are only cosmetic." Covering roots stops sensitivity, prevents further recession and protects against root decay, which are functional benefits.
• "Any recession can be fully covered." Coverage is predictable for shallow defects with intact bone between teeth; deep defects with lost interdental bone cover only partially.

Real-World Applications

• Treating gum recession that causes sensitivity or looks unsightly, especially on front teeth.
• Building attached gum around teeth planned for crowns or braces, which stress the gumline.
• Creating thick, stable tissue around dental implants to prevent future recession.
• Frenectomy for children whose tight lip frenum holds a gap between front teeth, or tongue-tie affecting speech and feeding.

Mucogingival surgery rebuilds the gum's defences: the right graft in the right place restores the tough attached band teeth need, covers painful exposed roots and sets up a stable foundation for everything from braces to implants. Done well, it is one of the most predictable and life-improving procedures in dentistry.