Periodontal Plastic Surgery and Soft Tissue Grafting

Periodontal plastic surgery, historically called mucogingival surgery, comprises procedures that correct deformities of the gingiva and alveolar mucosa, most prominently covering exposed root surfaces (gingival recession) and augmenting soft-tissue volume. Soft-tissue grafting-using autogenous tissue from the palate or substitute materials-and pedicle or coronally advanced flaps are its core techniques.

Definition

Periodontal plastic (mucogingival) surgery is the set of surgical procedures used to prevent or correct anatomical, developmental, traumatic, or disease-related defects of the gingiva, alveolar mucosa, and bone, including root coverage of gingival recessions and augmentation of keratinised or soft-tissue volume, frequently using autogenous or substitute soft-tissue grafts.

Scope

This topic covers the goals and main techniques of periodontal plastic surgery (root coverage, soft-tissue augmentation), the role of connective tissue and free gingival grafts, and the recession classification systems used to predict outcomes. It is a reference overview and does not provide indications, technique selection, or treatment guidance for individuals.

Core questions

• What deformities does periodontal plastic surgery aim to correct?
• How do connective tissue grafts and free gingival grafts differ in use?
• How do recession classifications help predict root-coverage outcomes?
• What determines whether complete root coverage is achievable?

Key concepts

• Gingival recession
• Root coverage procedures
• Subepithelial connective tissue graft
• Free gingival graft
• Coronally advanced and pedicle flaps
• Recession classification (Miller; Cairo RT)

Mechanisms

Root coverage relocates or adds soft tissue over an exposed root, using a pedicle or coronally advanced flap, an autogenous graft (subepithelial connective tissue or free gingival graft), a substitute material, or a combination. A connective tissue graft placed beneath a flap supplies the tissue needed for coverage while preserving overlying colour blend, whereas a free gingival graft adds keratinised tissue at the surface. The achievable amount of coverage is constrained by the interproximal attachment and bone level around the recession, which is the basis of recession classification systems that predict outcomes.

Clinical relevance

Periodontal plastic surgery addresses recession and soft-tissue deficiencies that can affect root sensitivity, hygiene, and appearance, and it is a defined branch of surgical periodontology. This entry describes its goals, techniques, and predictive frameworks at a conceptual level for orientation; it is educational and not a basis for selecting or performing procedures in any individual.

Evidence & guidelines

A systematic review of root coverage procedures (Chambrone & Tatakis, 2019) found that grafting-based techniques, particularly subepithelial connective tissue grafts, can achieve substantial and durable recession reduction, with outcomes influenced by recession type. Classification systems-Miller's (1985) and the interproximal-attachment-based Cairo RT system (Cairo et al., 2011)-help predict the likelihood of complete root coverage from the surrounding tissue levels.

History

Mucogingival surgery developed through the mid-twentieth century to manage inadequate attached gingiva and recession, initially with free gingival grafts. Langer and Langer's 1985 description of the subepithelial connective tissue graft for root coverage became a defining technique, and the field was later reframed as periodontal plastic surgery. Recession classifications by Miller (1985) and, more recently, Cairo and colleagues (2011) refined the prediction of root-coverage outcomes.

Debates

Predicting complete root coverage

The amount of root coverage that can be achieved depends heavily on the interproximal attachment and bone level, and classification systems differ in how reliably they predict outcomes; the shift from the Miller system toward the interproximal-attachment-based Cairo RT classification reflects this debate.

Key figures

• Burton Langer
• Preston D. Miller
• Francesco Cairo
• Leandro Chambrone

Seminal works

• langer-1985
• miller-1985

Frequently asked questions

What is periodontal plastic surgery used for?

It corrects deformities of the gingiva and alveolar mucosa, most commonly covering exposed roots from gingival recession and augmenting soft-tissue or keratinised-tissue volume, often using soft-tissue grafts or repositioned flaps.

Why can some recessions be fully covered and others not?

The achievable coverage depends largely on the height of the interproximal soft tissue and bone next to the recession; classification systems such as the Cairo RT system use this to predict whether complete root coverage is likely.