Evidence map›Paper›PMID 35721037›Full record

ReviewMedicine and pharmacy reports2022

Association of Alzheimer's disease and periodontitis - a systematic review and meta-analysis of evidence from observational studies.

Sriram Kaliamoorthy, Mahendirakumar Nagarajan, Vijayparthiban Sethuraman, Kavitha Jayavel, Vijayalakshmi Lakshmanan, Santosh Palla

Open access · diamondAbstract readReview
In one paragraph

Review in Medicine and pharmacy reports, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers, 7 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed, 7 pooled it
4.2field-weighted citation impact, top 5% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

28 citing papers in PubMed, 7 syntheses or guidelines pooled it, 29 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Pooled it
  5. Pooled it
  6. Pooled it
  7. Association Between Periodontitis and Mild Cognitive Impairment, Alzheimer's Disease, and Dementia: An Umbrella Review With Evidence Stratification.Special care in dentistry : official publication of the American Association of Hospital Dentists, the Academy of Dentistry for the Handicapped, and the American Society for Geriatric Dentistry
    Pooled it
  8. Article
  9. Review
  10. International journal of molecular sciences · 2026
    Article
  11. Review
  12. Article
  13. Article
  14. Parkinson's disease and Porphyromonas gingivalis levels: a case-control study.Journal of applied oral science : revista FOB · 2026
    Article
  15. Review
  16. Alzheimer's Disease andLife (Basel, Switzerland) · 2025
    Review
  17. Article
  18. Frontiers in cellular and infection microbiology · 2025
    Article
  19. Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 3 institutions in 1 country.

Sriram KaliamoorthyDepartment of Dentistry, Vinayaka Mission's Medical College and Hospital, Vinayaka Mission's Research Foundation, (Deemed to be University), Karaikal, Puducherry, India.
Mahendirakumar NagarajanDepartment of Prosthodontics, and Crown & Bridge, Raja Muthiah Dental College and Hospital, Annamalai University, Chidambaram, Tamil Nadu, India.
Vijayparthiban SethuramanDepartment of Dental Surgery, Thanjavur Medical College, Tamilnadu Dr. M.G.R Medical University, Tamil Nadu, India.
Kavitha JayavelDepartment of Periodontics and Implantology, Raja Muthiah Dental College and Hospital, Annamalai University, Chidambaram, Tamil Nadu, India.
Vijayalakshmi LakshmananDepartment of Oral Medicine and Radiology, Raja Muthiah Dental College and Hospital, Annamalai University, Chidambaram, Tamil Nadu, India.
Santosh PallaOral Medicine and Radiology, Sun Dental Care, Tondiarpet, Chennai, Tamil Nadu, India.
Annamalai University · INTamil Nadu Dr. M.G.R. Medical University · INVinayaka Missions Medical College and Hospitals · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The relationship between periodontitis (or periodontal disease) with Alzheimer's disease has been reported by various primary sources in the past decade, but not with a solid secondary research statement. A systematic review and meta-analysis was conducted in accordance with the guidelines of the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement and registered (Reference number: CRD42020185264) with PROSPERO (International prospective register for systematic reviews). A literature search was conducted on specific databases for suitable articles in English language. Out of 612 studies selected, 41 underwent full-text analysis; five studies were eligible for systematic review, and 3 for meta-analysis. Meta-analysis was performed with tests for sensitivity and statistical heterogeneity followed by calculation of summary effect measures in terms of odds ratio (OR) and 95% confidence interval (CI). The results of this review showed a significant association between periodontitis and Alzheimer's disease in the meta-analysis [OR 1.67 (1.21-2.32)].

Indexed as

Alzheimer’s diseasemeta-analysisneurologyperiodontitispsychiatry

Identifiers

PMID35721037
PMCPMC9176309
OpenAlexW4211136724

What Socratic holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.