Banan L. Amer, Amal A. El-Hessy, Ebtesam A. El-Zefzaf And Enas A. El-Zamarany,

ABSTRACT
Background: Diabetes Mellitus (DM) Is One Of The Common Chronic Diseases In Adult Populations In The World. DM Has A Strong Influence On The Oral Cavity And Represents A Risk Factor For Gingivitis And Periodontitis. Conventional Periodontal Therapy Includes Both Non-surgical And Surgical Approaches. The First Category Includes SRP, The Adjunctive Use Of Chemotherapeutic Agent, Local Route Of Drug Delivery And Recently Laser Therapy Applying Lasers As An Adjunctive Or Alternative To Mechanical Treatment Had A Great Run In The Treatment Of Chronic Periodontitis (CP). Among Laser Applications, Low-level Laser Therapy (LLLT) Is Recommended For Its Pain-reducing, Wound-healing Promoter And Anti-inflammatory Effects. Objective: The Aim Of The Study Was To Assess The Effect Of Diode Laser As Adjunct To Scaling And Root Planing In Management Of Moderate Chronic Periodontitis In Diabetic Patients With Glycemic Control (Type ??-non Insulin Dependent).

Materials and Methods: Twenty Sites In Ten Diabetic Patients With Glycemic Control (Type ??-non Insulin Dependent) With Moderate Chronic Periodontitis Were Selected And Randomly Divided Into Two Groups. Group ? Ten Sites Received Only SRP; Group II Ten Sites Received SRP + LLLT. The Following Clinical Parameters (plaque Index (PI), Bleeding On Probing (BOP), Probing Pocket Depth (PPD), And Clinical Attachment Level (CAL) Were Recorded For Each Patient In Both Groups Before Treatment (baseline), 3 And 6 Months After Treatment. Gingival Crevicular Fluid (GCF) Samples Were Collected And Analyzed Using ELISA Test For Quantative Measurements Of MMP-9.

Results: The Results Showed Significant Improvement In The Mean PI, BOP, PPD, And CAL Gain For The Two Groups At 3 And 6 Months As Compared To Baseline Value. Furthermore, When Comparing The Two Groups, The Results Showed Non-significant Difference At All Study Period (P>0.05). While Group II Showed Better Reduction In The Mean PI As Compared To Group I At 3 And 6 Months For PI And At 3 Months For BOP At 6 Months. Moreover, Results Showed More Reduction In The Mean PPD And CAL At Group II Than Group I. Also, ELISA Test Demonstrated Significant Improvement In MMP-9 Levels Till 6 Month Regarding Both Groups. While There Were No Significant Difference When Comparing Group I And II At All Study Period (P>0.05). Conclusion: Both Treatment Modalities Resulted In A Significant Clinical Improvement Without A Clear Superiority Of One Procedure.