Can patients with periodontitis undergo orthodontic treatment?

In general, whether a patient with periodontitis can undergo orthodontic treatment depends on the control of their condition. Orthodontic treatment is usually possible once periodontitis has stabilized and inflammation is under control, but it is not recommended during active disease phases. The detailed analysis is as follows:

If a patient with periodontitis has received proper treatment, with resolution of symptoms such as redness, swelling, and bleeding of the gums, normalization of periodontal pocket depth, and stabilization of tooth mobility—indicating a stable disease state—orthodontic treatment can be safely performed. In such cases, orthodontics will not exacerbate periodontal tissue damage. On the contrary, it may improve tooth alignment, reduce food impaction, and support long-term periodontal health.

However, if periodontitis is in an active phase, characterized by obvious gum redness, swelling, bleeding, pus discharge from periodontal pockets, or significant tooth mobility, orthodontic treatment is not advisable. The orthodontic forces may increase tooth mobility, worsen periodontal tissue destruction, and even lead to tooth loss.

To ensure successful orthodontic treatment, patients with periodontitis should maintain rigorous daily oral hygiene: brushing teeth twice daily with a soft-bristled toothbrush, and using dental floss and water flossers to clean interdental spaces. During orthodontic treatment, patients should follow medical advice closely, enhance oral care, avoid eating overly hard foods, and minimize stress on the periodontium.