Change in tooth mobility following non‐surgical periodontal therapy: A retrospective cohort study of clinical outcomes

Severe gum disease can cause teeth to become loose, putting them at risk of being lost. This study investigated whether a common "deep cleaning" procedure (non-surgical periodontal therapy) could help to stabilize these loose teeth. We analyzed the de-identified dental records of 152 patients from eight U.S. university clinics, tracking the outcomes of 489 loose teeth for 1 year after treatment. Our results showed that the deep cleaning was very successful. Most teeth, even those that were moderately or severely loose, became significantly firmer. For example, more than 70% of slightly loose teeth became completely stable again. We also identified factors that made a successful outcome less likely, including smoking, diabetes, having more severe gum disease, or having a very loose tooth to begin with. This research provides evidence that this routine therapy is effective in tightening loose teeth, which can help dentists and patients to make better-informed decisions about saving teeth and maintaining oral health.