Long-term stability of regenerative periodontal surgery and orthodontic tooth movement in stage IV periodontitis: 10-year data of a retrospective study.

Background: This study aimed to evaluate the long-term effectiveness of regenerative treatment of intra-bony defects in combination with consecutive orthodontic therapy (OT) in stage IV periodontitis.

Methods: Twenty-two patients with a total of 256 intra-bony defects were analyzed after regenerative surgery followed by OT initiated 3 months later. Changes in radiographic bone level (rBL) and probing pocket depths (PPD) were evaluated after 1 year (T1), final splinting (T2), and 10 years (T10).

[Tooth preservation by forced extrusion using magnets. A case report].

Teeth with extensive loss of coronal tooth structure due to caries or trauma require restorative or prosthetic rehabilitation. However, deep subgingival preparation jeopardizing the biological width or the loss of ferrule effect compromise a succesful longterm restoration. Therefore, crown lengthening is indicated instead.