Last updated July 22, 2026
Key finding
HbA1c decreased significantly from baseline.
This study evaluated the impact of scaling and root planing on glycemic control in type 2 diabetes patients, finding significant improvements in various health markers.
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 scaling and root planing on glycemic control in type 2 diabetes patients, finding significant improvements in various health markers.
Improving glycemic control is crucial for managing type 2 diabetes and preventing complications. This study highlights the potential role of dental interventions, such as scaling and root planing, in enhancing overall health outcomes for diabetic patients. By addressing oral health, clinicians may offer a comprehensive approach to diabetes management.
Unclear effectiveness for some interventions Limited generalizability due to specific population Potential confounding factors not controlled
Published in
Publication details and source links for this paper.
Ambrina Q, Syed AHB, Zeba H, Akhtar AB, Sidra Z. Scaling and root planing improves glycemic control in type 2 diabetes patients: a randomized controlled trial. BMC Oral Health. 2021;21:253. doi:10.1186/s12903-021-01620-1
HbA1c decreased by 1.22% (p=0.001)
FBG decreased by 33.32 mg/dL (p=0.023)
BOP decreased significantly from baseline
Evidence network
Understand where this research contributes within the broader evidence network.
This study contributes evidence to Oral hygiene instructions only, Scaling and root planing and oral hygiene instructions, Scaling and root planing with metronidazole and oral hygiene instructions and Bleeding on probing, Clinical attachment level, Fasting blood sugar (FBS), and 2 more.
This study contributes evidence to
Primary intervention
Oral hygiene instructions only
Primary outcomes
Evidence topics
Primary intervention
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
15
Evidence pairs
555
Related studies
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.
Oral hygiene instructions only → Bleeding on probing
Oral hygiene instructions only → Bleeding on probing
Oral hygiene instructions only → Clinical attachment level
Oral hygiene instructions only → Clinical attachment level
Oral hygiene instructions only → Fasting blood sugar (FBS)
Oral hygiene instructions only → Fasting blood sugar (FBS)
Oral hygiene instructions only → Periodontal probing depth
Oral hygiene instructions only → Periodontal probing depth
Scaling and root planing and oral hygiene instructions → Bleeding on probing
Scaling and root planing and oral hygiene instructions → Bleeding on probing
Scaling and root planing and oral hygiene instructions → Clinical attachment level
Scaling and root planing and oral hygiene instructions → Clinical attachment level
Scaling and root planing and oral hygiene instructions → Fasting blood sugar (FBS)
Scaling and root planing and oral hygiene instructions → Fasting blood sugar (FBS)
Scaling and root planing and oral hygiene instructions → HbA1c
Scaling and root planing and oral hygiene instructions → HbA1c
Scaling and root planing and oral hygiene instructions → Periodontal probing depth
Scaling and root planing and oral hygiene instructions → Periodontal probing depth
Scaling and root planing with metronidazole and oral hygiene instructions → Bleeding on probing
Scaling and root planing with metronidazole and oral hygiene instructions → Bleeding on probing
Scaling and root planing with metronidazole and oral hygiene instructions → Clinical attachment level
Scaling and root planing with metronidazole and oral hygiene instructions → Clinical attachment level
Scaling and root planing with metronidazole and oral hygiene instructions → Fasting blood sugar (FBS)
Scaling and root planing with metronidazole and oral hygiene instructions → Fasting blood sugar (FBS)
Scaling and root planing with metronidazole and oral hygiene instructions → HbA1c
Scaling and root planing with metronidazole and oral hygiene instructions → HbA1c
Scaling and root planing with metronidazole and oral hygiene instructions → Periodontal probing depth
Scaling and root planing with metronidazole and oral hygiene instructions → Periodontal probing depth
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Relationships organized using the Dediabetes Evidence Intelligence™ framework.
This study contributes to evidence on Oral hygiene instructions only and Bleeding on probing, Oral hygiene instructions only and Clinical attachment level.
This study contributes to the evidence on the following intervention-outcome relationships.
Behavioral & Lifestyle
Behavioral & Lifestyle
Curated evidence collections and hubs this study is part of.
All studies measuring Bleeding on probing
Measures Bleeding on probing as a key outcome.
All studies measuring Clinical attachment level
Measures Clinical attachment level as a key outcome.
All studies on Oral hygiene instructions only
Contributes to Oral hygiene instructions only evidence base.
Jump to pre-filtered views in Evidence Explorer.
1 results
1 results
1 results
1 results
1 results
Generated from the study's connected evidence using Evidence Intelligence™.
Scaling and root planing and oral hygiene instructions appears to improve Bleeding on probing.
ConsistencyScore™: Consistency cannot yet be determined from the available evidence.
Ranked evidence signals
Bleeding on probing
EvidenceScore™ Emerging | EvidenceScore™ 59.0 | strong positive | ConsistencyScore™ Unclear | 1 study
Why this answer: This answer is based on a single supporting study.
Limitations
Scaling and root planing and oral hygiene instructions appears to improve Clinical attachment level.
ConsistencyScore™: Consistency cannot yet be determined from the available evidence.
Ranked evidence signals
Clinical attachment level
EvidenceScore™ Emerging | EvidenceScore™ 59.0 | strong positive | ConsistencyScore™ Unclear | 1 study
Why this answer: This answer is based on a single supporting study.
Limitations
Scaling and root planing and oral hygiene instructions appears to improve Fasting blood sugar (FBS).
ConsistencyScore™: Consistency cannot yet be determined from the available evidence.
Ranked evidence signals
Fasting blood sugar (FBS)
EvidenceScore™ Emerging | EvidenceScore™ 59.0 | strong positive | ConsistencyScore™ Unclear | 1 study
Why this answer: This answer is based on a single supporting study.
Limitations
Scaling and root planing and oral hygiene instructions appears to improve HbA1c.
ConsistencyScore™: Consistency cannot yet be determined from the available evidence.
Ranked evidence signals
HbA1c
EvidenceScore™ Emerging | EvidenceScore™ 59.0 | strong positive | ConsistencyScore™ Unclear | 1 study
Why this answer: This answer is based on a single supporting study.
Limitations
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