Last updated July 22, 2026
Key finding
The difference in plaque index (PI) between NSPT and OHI groups were significant at 2 months recall (p = 0.013).
This study evaluated the effects of non-surgical periodontal therapy on plaque index and glycemic control in type 2 diabetes patients, finding significant improvements in both areas.
Quick read
The essential study design details in one scan.
EvidenceScore™
Moderate
Study type
RCTs
Follow-up
Long-Term (1–5 y)
Risk of bias
Some Concerns
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Plain-language summary
A plain-language read of the study’s main message and where it applies.
Study focus
This study evaluated the effects of non-surgical periodontal therapy on plaque index and glycemic control in type 2 diabetes patients, finding significant improvements in both areas.
Improving oral health through non-surgical periodontal therapy may enhance glycemic control in patients with type 2 diabetes, potentially reducing the risk of diabetes-related complications. This highlights the importance of integrating dental care into diabetes management strategies.
Study design may limit generalizability to broader populations. Sample size and characteristics were not specified. No long-term follow-up data were provided.
Published in
Publication details and source links for this paper.
Renukanth PCR, Tara BT, Siew PC, Karuthan C, Rathna DV. Non-surgical periodontal therapy improves plaque index and glycemic control in type 2 diabetes patients. BMC Oral Health. 2014;14:79-79. doi:10.1186/1472-6831-14-79
NSPT group showed a significant reduction in plaque index (p = 0.013).
Mean probing pocket depth decreased significantly from 2.56 mm to 1.94 mm (p = 0.003).
HbA1c levels decreased significantly in the NSPT group (p = 0.038).
Evidence network
Understand where this research contributes within the broader evidence network.
This study contributes evidence to Non-surgical periodontal treatment, SRP + OHI and C-reactive protein, Clinical attachment level, HbA1c, and 2 more.
This study contributes evidence to
Primary intervention
Non-surgical periodontal treatment
Primary outcomes
Evidence topics
Primary intervention
Primary outcomes
Intervention and outcome relationships this study adds to the evidence network.
Editorial context
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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.
2
Related topics
9
Evidence pairs
368
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Evidence topic
Contributes evidence
Evidence topic
Contributes evidence
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Primary evidence
Evidence topic
matched_outcome
Related evidence
Evidence topic
Save evidence
Core evidence
The primary outcomes reported in this study.
Non-surgical periodontal treatment → C-reactive protein
Non-surgical periodontal treatment → C-reactive protein
Non-surgical periodontal treatment → Clinical attachment level
Non-surgical periodontal treatment → Clinical attachment level
Non-surgical periodontal treatment → Periodontal probing depth
Non-surgical periodontal treatment → Periodontal probing depth
Non-surgical periodontal treatment → Plaque Index (PI)
Non-surgical periodontal treatment → Plaque Index (PI)
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Relationships organized using the Dediabetes Evidence Intelligence™ framework.
This study contributes to evidence on Non-surgical periodontal treatment and Clinical attachment level, SRP + OHI and Clinical attachment level.
This study contributes to the evidence on the following intervention-outcome relationships.
Procedures
Curated evidence collections and hubs this study is part of.
All studies measuring Clinical attachment level
Measures Clinical attachment level as a key outcome.
All studies on Non-surgical periodontal treatment
Contributes to Non-surgical periodontal treatment evidence base.
All studies on SRP + OHI
Contributes to SRP + OHI evidence base.
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10 results
6 results
10 results
6 results
10 results
Generated from the study's connected evidence using Evidence Intelligence™.
Non-surgical periodontal treatment may improve Clinical attachment level.
ConsistencyScore™: Results are consistent across studies.
Ranked evidence signals
Clinical attachment level
EvidenceScore™ Strong | EvidenceScore™ 84.4 | moderate positive | ConsistencyScore™ Consistent | 1 study
Why this answer: This answer is based on a single supporting study.
Limitations
SRP + OHI may improve Clinical attachment level.
ConsistencyScore™: Results are generally consistent across studies.
Ranked evidence signals
Clinical attachment level
EvidenceScore™ Strong | EvidenceScore™ 83.6 | moderate positive | ConsistencyScore™ Generally Consistent | 1 study
Why this answer: This answer is based on a single supporting study.
Limitations
Non-surgical periodontal treatment may improve HbA1c.
ConsistencyScore™: Results are generally consistent across studies.
Ranked evidence signals
HbA1c
EvidenceScore™ Strong | EvidenceScore™ 83.6 | moderate positive | ConsistencyScore™ Generally Consistent | 1 study
Why this answer: This answer is based on a single supporting study.
Limitations
SRP + OHI appears to improve Periodontal probing depth.
ConsistencyScore™: Results are consistent across studies.
Ranked evidence signals
Periodontal probing depth
EvidenceScore™ Strong | EvidenceScore™ 83.5 | strong positive | ConsistencyScore™ Consistent | 1 study
Why this answer: This answer is based on a single supporting study.
Limitations
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