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

Abstract

AbstractBackgroundThis 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.MethodsTwenty‐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).ResultsMean rBL gain was significant with 4.63 mm (±2.43 mm) after 1 year (T1), 4.19 mm (±2.61 mm) at final splinting (T2), and 4.48 mm (±2.62 mm) after 10 years (T10). Mean PPD was significantly reduced from 5.84 mm (±2.05 mm) at baseline to 3.19 mm (±1.23 mm) at T1, to 3.07 mm (±1.23 mm) at T2, and to 2.93 mm (±1.24 mm) at T10. Pocket closure (PPD ≤ 4 mm) was achieved in 90% of all defects. Tooth loss amounted to 4.5%.ConclusionsWithin the limitations of this retrospective study design, these 10‐year findings suggest that in motivated and compliant patients with stage IV periodontitis and in need of OT an inter‐disciplinary treatment can lead to favorable and stable long‐term results.