Last updated August 16, 2026
Key finding
After 3 months, there was significant reduction in HbA1c levels in the test group compared to the control group (p = 0.029).
This study evaluated the impact of nonsurgical periodontal therapy on glycemic control in patients with type 2 diabetes and chronic periodontitis, finding significant improvements in HbA1c levels and periodontal health.
Quick read
The essential study design details in one scan.
EvidenceScore™
Moderate
Study type
RCTs
Follow-up
Medium-Term (3–12 mo)
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 impact of nonsurgical periodontal therapy on glycemic control in patients with type 2 diabetes and chronic periodontitis, finding significant improvements in HbA1c levels and periodontal health.
Improving glycemic control in patients with diabetes is crucial, as it can reduce the risk of complications associated with the disease. This study suggests that addressing periodontal disease through nonsurgical therapy may enhance overall health outcomes for diabetic patients, highlighting the importance of integrated dental and medical care.
The study did not include a long-term follow-up to assess sustained effects. Sample size may limit the generalizability of the findings. The control group showed no significant changes, indicating potential biases.
Published in
Publication details and source links for this paper.
Khushboo G, Shaili P, Madhur DB. Effect of Nonsurgical Periodontal Therapy on Glycemic Control in Patients with Type 2 Diabetes and Chronic Periodontitis. Clinical, Cosmetic and Investigational Dentistry. 2017;9:73-80. doi:10.2147/CCIDE.S138338
HbA1c levels decreased by 0.13% in the treatment group (p=0.029).
Gingival index improved significantly in the treatment group (p<0.001).
Probing depth reduced by 0.9 mm in the treatment group (p<0.001).
Evidence network
Understand where this research contributes within the broader evidence network.
This study contributes evidence to Non-surgical periodontal treatment and Clinical attachment level, HbA1c, Periodontal probing depth.
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.
1
Related topics
3
Evidence pairs
348
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Evidence topic
Contributes evidence
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Primary evidence
Evidence topic
matched_outcome
Core evidence
The primary outcomes reported in this study.
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
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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, Non-surgical periodontal treatment and HbA1c.
This study contributes to the evidence on the following intervention-outcome relationships.
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 measuring HbA1c
Measures HbA1c as a key outcome.
All studies on Non-surgical periodontal treatment
Contributes to Non-surgical periodontal treatment evidence base.
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13 results
13 results
13 results
13 results
13 results
Generated from the study's connected evidence using Evidence Intelligence™.
Non-surgical periodontal treatment may improve Clinical attachment level.
ConsistencyScore™: Results are generally consistent across studies.
Ranked evidence signals
Clinical attachment level
EvidenceScore™ Strong | EvidenceScore™ 84.3 | 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 mixed and should be interpreted cautiously.
Ranked evidence signals
HbA1c
EvidenceScore™ Strong | EvidenceScore™ 83.8 | moderate positive | ConsistencyScore™ Mixed | 1 study
Why this answer: This answer is cautious because the available studies report mixed findings.
Limitations
Non-surgical periodontal treatment 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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