What does “Guided tissue regeneration” mean?
Guided tissue regeneration (GTR) is surgery that uses a barrier membrane or other measures to control the healing space and encourage regeneration of damaged periodontal supporting tissues. It aims to regenerate bone, periodontal ligament, and cementum around natural teeth; the same result cannot be expected for every defect.
Why a barrier membrane is used
Epithelium, connective tissue, periodontal ligament, and bone heal in different ways. A barrier membrane limits entry of fast-growing tissues and maintains space needed for regeneration. Bone graft material may also be used, but placing material does not mean complete regeneration.
Conditions that determine suitability
The depth and shape of the defect, remaining bony walls, whether the tooth can be preserved, inflammation control, and hygiene are assessed. It is considered for certain intrabony defects or some furcation lesions remaining after initial periodontal treatment. Smoking, maintenance difficulties, and wound stability also affect planning and prognosis.
How it differs from guided bone regeneration
GTR aims to regenerate several tissues supporting natural teeth. Guided bone regeneration (GBR) mainly describes reconstruction of deficient bone. Some principles overlap, but target tissues and applications differ, so the names alone should not lead to treating them as identical procedures.
Frequently Asked Questions
Does all lost bone around the teeth return?
No. Results vary with defect shape, inflammation, and wound-healing conditions. Confirm the possible extent of regeneration and defects that may remain before surgery.
Will the membrane need removal later?
Resorbable membranes break down in the body, while non-resorbable membranes are usually removed at a planned time. Exposure or inflammation may change timing and care, so obtain instructions on how to respond and the follow-up plan.
Questions about guided tissue regeneration (GTR)
Learn what the term means and how it relates to your dental condition.
- Sufficient understanding
Is the current defect shaped suitably for regenerative treatment?
Explanation and evidenceGeneralized bone loss may differ from a local defect where regeneration can be attempted. Confirm the surgical goal based on examination findings.
Japanese Society of Periodontology · Clinical Practice Guideline 2022 - A choice suited to your condition
Are initial inflammation control and later maintenance arranged?
Explanation and evidenceRegenerative surgery does not replace basic periodontal treatment or daily hygiene. Plan the treatment sequence and follow-up care together.
American Academy of Periodontology · Surgical Procedures
