Healthy Dietary Patterns on Clinical Periodontal Parameters: A GRADE Compliant Systematic Review and Meta-analysis

Gustavo Sáenz-Ravello, Loreto Matamala, Nidia Castro dos Santos, Patricia Cisternas, Jorge Gamonal, Alejandra Fernandez, Natalia Bello-Escamilla, Marcela Hernandez, Mauricio Baeza

Research output: Contribution to journalReview articlepeer-review

3 Citations (Scopus)


Purpose of review: To evaluate the impact of healthy dietary patterns compared to the Western diet on periodontal indices in adults, used in the prevention and treatment of periodontal diseases. Recent findings: Four RCTs and seven case–control studies were included on a critical appraisal of the evidence using GRADE, based on random effects meta-analysis by methodological subgroups for periodontal indices, and a narrative synthesis. There is a clinically significant reduction on bleeding on probing, Gingival Index and periodontal inflamed surface area, Calculus and Debris Index and incidence of tooth loss on healthy dietary patterns group, with a very low to moderate certainty of the evidence. Methodological complementation between included studies allows to consider “real-world data” that RCTs ignore, which have a significant effect on this association. Although biological plausibility is reported, more studies are required to clarify these results. Summary: healthy dietary patterns could impact on periodontal health–disease status, reducing the global burden of periodontal diseases by improving the results of the standard care actions, such as toothbrushing, interdental cleaning and periodontal therapy. Further research is required to improve the quality of the evidence.

Original languageEnglish
Pages (from-to)32-55
Number of pages24
JournalCurrent Oral Health Reports
Issue number2
Publication statusAccepted/In press - 2022


  • Healthy diet
  • Meta-analysis
  • Periodontal Diseases
  • Periodontal Indices
  • Systematic review
  • Western diet

ASJC Scopus subject areas

  • Immunology and Microbiology (miscellaneous)
  • Oral Surgery
  • Surgery


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