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[Guided-tissue regeneration in endodontic surgery].

S Taschieri¹, T Testori, F Azzola

¹Service d'odontologie, hôpital Galeazzi, université de Milan, Milan, Italie.

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Summary

Guided-tissue regeneration (GTR) is not essential for four-wall defects in endodontic surgery. However, GTR may benefit transosseous lesions, showing potential for improved healing outcomes in complex cases.

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Area of Science:

Dentistry
Oral Surgery
Regenerative Medicine

Background:

Endodontic surgery aims to treat bone lesions from dental canal infections.
Large periapical lesions require effective treatment strategies.
Guided-tissue regeneration (GTR) is a technique used in regenerative procedures.

Purpose of the Study:

To investigate the success rate of GTR in endodontic surgery for large periapical lesions.
To compare outcomes between defects with and without GTR.

Main Methods:

Assessed two-wall (transosseous) and four-wall bone defects (≥10mm diameter).
Included 73 teeth in 55 patients, randomized to receive GTR with deproteinized bovine bone or not.
Evaluated outcomes via clinical and radiographic assessment at one-year follow-up.

Main Results:

69 teeth were evaluated at one year.
81.2% (56/69) of teeth showed successful healing.
Healing was uncertain in 10 cases and failed in 3 cases.

Conclusions:

GTR is not necessary for four-wall defects in endodontic surgery.
GTR may be indicated for transosseous lesions, potentially improving outcomes.