Impact of Adjunctive Air-Polishing on Periodontal Status in Patients with Low Vitamin D3 Levels: A Retrospective Study

<b>Background/Objectives</b>: Air-polishing has become, in recent years, a very popular additional tool to subgingival debridement for treating periodontal disease. Vitamin D₃ plays a crucial role in bone metabolism and calcium-phosphate homeostasis. The aim of our retrospective study was to determine the additional effect of subgingival air-polishing with two types of powders (glycine and erythritol) on patients with different stages of periodontitis and low serum levels of Vitamin D₃. <b>Methods</b>: We collected and analysed the data of 62 patients (demographics, vitamin D₃ levels, plaque index, periodontal probing depth, bleeding on probing, clinical attachment loss, periodontitis stage and type of air-polishing powder) used during periodontal therapy. <b>Results</b>: We did not observe a significant correlation between periodontal status and vitamin D₃ levels/status (mean Vitamin D₃ levels: Stage I-20.19 ± 4.413 ng/mL; Stage II-19.482 ± 3.814 ng/mL; Stage III-17.681 ± 5.869 ng/mL; Stage IV-17.578 ± 5.94 ng/mL; and <i>p</i> = 0.539), nor did we find any significant differences in clinical outcomes when using glycine or erythritol in addition to scaling and root planning (SRP) at 3 months after treatment (all <i>p</i> > 0.05). <b>Conclusions</b>: The discrete association between lower levels of vitamin D₃ and more advanced stages of periodontitis could suggest a possible influence of vitamin D₃ insufficiency on periodontal disease progression. Although safe, easy to use and comfortable for patients, glycine and erythritol showed no differences in periodontal clinical parameters when compared as an addition to SRP.