Research Summary
Analyzed using Evidence Intelligence™

Vitamin D3 may improve periodontal health in diabetes

Key finding

Following SRP and Vitamin D supplementation there was a measurably critical reduction in every one of the periodontal clinical indicators in both groups.

This study investigated the effects of Vitamin D3 supplementation alongside scaling and root planing in patients with Type 2 Diabetes Mellitus and periodontitis, finding significant improvements in periodontal health indicators.

Evidence strength

Moderate confidence

Study type

RCTs

Follow-up

Extended (5–20+ y)

Some Concerns bias
Last updated July 8, 2026

Quick read

Study at a glance

The essential study design details in one scan.

Population

Young Adult (19–39), Middle Aged (40-64), Male, Female, Asia-Pacific (APAC), with T2 Diabetes

Intervention

Oral Vitamin D3 supplementation

Study type

RCTs

Follow-up

Extended (5–20+ y)

Primary outcome

Plaque Index (PI)

Comparator

No Vitamin D3 supplementation

Plain-language summary

What this paper says

A plain-language read of the study's main message and where it applies.

Study focus

This study investigated the effects of Vitamin D3 supplementation alongside scaling and root planing in patients with Type 2 Diabetes Mellitus and periodontitis, finding significant improvements in periodontal health indicators.

Clinical relevance

Improving periodontal health in patients with diabetes is crucial as it can influence overall health outcomes. This study suggests that adding Vitamin D3 supplementation to standard dental treatments could provide additional benefits, potentially reducing complications associated with both diabetes and periodontal disease.

Keep in mind

Unclear effectiveness of Vitamin D3 supplementation Limited generalizability due to specific population characteristics Potential confounding factors not controlled for

Published in

Journal Reference

Publication details and source links for this paper.

G R, Nubesh SK, Ramesh K, Indrajit K, Syed SHQ, Pavithra RS. Vitamin D3 Supplementation as an Adjunct to Scaling and Root Planing in Patients with Type 2 Diabetes Mellitus and Periodontitis. Journal of Pharmacy & Bioallied Sciences. 2023;15(Suppl 1):S346-S349. doi:10.4103/jpbs.jpbs_543_22

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Main Effects

Plaque Index decreased by 11.6 units (p=0.001)

Gingival Bleeding Index decreased by 10 units (p=0.001)

Probing Pocket Depth decreased by 2.5 mm (p=0.001)

Clinical Attachment Level increased by 2 mm (p=0.001)

Evidence network

How this study fits

Understand where this research contributes within the broader evidence network.

Evidence Context

This study contributes evidence to Vitamin D supplementation and Clinical attachment level, Fasting Plasma Glucose (FPG), Periodontal probing depth, and 3 more.

Primary intervention

Vitamin D supplementation

Primary outcomes

  • Clinical attachment level
  • Fasting Plasma Glucose (FPG)
  • Periodontal probing depth

Evidence relationships

Intervention and outcome relationships this study adds to the evidence network.

6
Evidence pairs
6
Relationships
2
Evidence topics
contributes_evidence

Editorial context

Why this study matters

See why this paper is useful beyond its individual results.

Evidence network role

This section describes how the study fits into the current evidence network. It does not determine whether an intervention works on its own.

Moderate contributionModerate confidenceNetwork score: 65

2

Related topics

6

Evidence pairs

303

Related studies

High relevance in at least one topic

Why it is useful

  • Contributes to 6 evidence relationships
  • Includes primary outcome data
  • Linked to 2 direct semantic evidence topics

Topic contributions

Evidence topic

Contributes evidence

Evidence topic

Contributes evidence

Core evidence

Study findings

The primary outcomes reported in this study.

HarmfulIncrease

Clinical attachment level

Vitamin D supplementation → Clinical attachment level

Vitamin D supplementation → Clinical attachment level

Evidence profile

HarmfulIncreaseClinical Outcomes
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NoneNo Change

Fasting Plasma Glucose (FPG)

Vitamin D supplementation → Fasting Plasma Glucose (FPG)

Vitamin D supplementation → Fasting Plasma Glucose (FPG)

Evidence profile

NoneNo ChangeGlycemic Control
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StrongDecrease

Periodontal probing depth

Vitamin D supplementation → Periodontal probing depth

Vitamin D supplementation → Periodontal probing depth

Evidence profile

StrongDecreaseClinical Outcomes
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StrongDecrease

Plaque Index (PI)

Vitamin D supplementation → Plaque Index (PI)

Vitamin D supplementation → Plaque Index (PI)

Evidence profile

StrongDecreaseClinical Outcomes
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StrongDecrease

Reduction in Gingival Bleeding Index following SRP and Vitamin D supplementation

Vitamin D supplementation → Reduction in Gingival Bleeding Index following SRP and Vitamin D supplementation

Vitamin D supplementation → Reduction in Gingival Bleeding Index following SRP and Vitamin D supplementation

Evidence profile

StrongDecreaseClinical Outcomes
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StrongIncrease

Serum concentration of vitamin D

Vitamin D supplementation → Serum concentration of vitamin D

Vitamin D supplementation → Serum concentration of vitamin D

Evidence profile

StrongIncreaseMetabolic Health
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evidence suggest

Evidence Suggest

  • Significant reduction in plaque index by 11.6 units
  • Gingival bleeding index reduced by 10 units
  • Serum Vitamin D levels increased by 30 ng/mL
who this applies

Who this applies to

  • Adults diagnosed with Type 2 Diabetes Mellitus
  • Patients experiencing periodontitis
keep in mind

Keep in Mind

  • Results may not apply to non-diabetic populations
  • Further research needed to confirm long-term benefits
  • Study did not assess other potential confounding health factors
between the lines

Between the Lines

  • Unclear effectiveness of Vitamin D3 supplementation
  • Limited generalizability due to specific population characteristics
  • Potential confounding factors not controlled for

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Connected Evidence

Explore related studies, evidence collections, and research questions.

Relationships organized using the Dediabetes Evidence Intelligence™ framework.

This study contributes to evidence on Vitamin D supplementation and Serum concentration of vitamin D, Vitamin D supplementation and Reduction in Gingival Bleeding Index following SRP and Vitamin D supplementation.

Related evidence relationships

Explore in Evidence Archive

This study contributes to the evidence on the following intervention-outcome relationships.

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Questions answered by this study

Generated from the study's connected evidence using Evidence Intelligence™.

Does Vitamin D supplementation improve serum concentration of vitamin d?

Moderate Evidence

Vitamin D supplementation appears to improve Serum concentration of vitamin D.

ConsensusScore™: Results are consistent across studies.

Ranked evidence signals

  1. 1

    Serum concentration of vitamin D

    EvidenceScore™ Moderate | EvidenceScore™ 61.9 | strong positive | ConsensusScore™ Consistent | 1 study

Why this answer: This answer is based on a single supporting study.

Limitations

  • Only one supporting study is available.
  • Population details are unavailable.
1 supporting studyUpdated: Jul 2026

Does Vitamin D supplementation improve periodontal probing depth?

Emerging Evidence

Vitamin D supplementation appears to improve Periodontal probing depth.

ConsensusScore™: Consistency cannot yet be determined from the available evidence.

Ranked evidence signals

  1. 1

    Periodontal probing depth

    EvidenceScore™ Emerging | EvidenceScore™ 52.9 | strong positive | ConsensusScore™ Unclear | 1 study

Why this answer: This answer is based on a single supporting study.

Limitations

  • Only one supporting study is available.
  • Consistency cannot yet be determined.
  • Population details are unavailable.
1 supporting studyUpdated: Jul 2026

Does Vitamin D supplementation improve plaque index (pi)?

Emerging Evidence

Vitamin D supplementation appears to improve Plaque Index (PI).

ConsensusScore™: Consistency cannot yet be determined from the available evidence.

Ranked evidence signals

  1. 1

    Plaque Index (PI)

    EvidenceScore™ Emerging | EvidenceScore™ 52.9 | strong positive | ConsensusScore™ Unclear | 1 study

Why this answer: This answer is based on a single supporting study.

Limitations

  • Only one supporting study is available.
  • Consistency cannot yet be determined.
  • Population details are unavailable.
1 supporting studyUpdated: Jul 2026

Does Vitamin D supplementation improve reduction in gingival bleeding index following srp and vitamin d supplementation?

Emerging Evidence

Vitamin D supplementation appears to improve Reduction in Gingival Bleeding Index following SRP and Vitamin D supplementation.

ConsensusScore™: Consistency cannot yet be determined from the available evidence.

Ranked evidence signals

  1. 1

    Reduction in Gingival Bleeding Index following SRP and Vitamin D supplementation

    EvidenceScore™ Emerging | EvidenceScore™ 52.9 | strong positive | ConsensusScore™ Unclear | 1 study

Why this answer: This answer is based on a single supporting study.

Limitations

  • Only one supporting study is available.
  • Consistency cannot yet be determined.
  • Population details are unavailable.
1 supporting studyUpdated: Jul 2026
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