Dalia D. Fayed, Hatem S. Amin And Ahmed I. El Dosoky,

ABSTRACT


Introduction: Incorporation Of Antibacterials Into Restorative Materials, Has Evolved, Due To The Increased Understanding Of The Caries Process. However, The Impact Of This Mixture On The Properties Of These Materials Must Be Investigated. Up Till Now, There Are No In-vivo Studies Comparing The Survival Rate Between Conventional Glass Ionomer Cement [GIC] And Chlorhexidine Diacetate-modified GIC.

Purpose: Compare The Clinical Effectiveness Of Conventional Versus Chlorhexidine -containing Glass Ionomer Cement Using The Atraumatic Restorative Treatment Approach In Primary Molars. Methods: Forty-five Primary Molars, In 5-8-year-olds, With Single Surface Occlusal Caries Were Randomly Divided Into Three Groups. Group I: The Carious Primary Molar Was Restored With Atraumatic Restorative Treatment [ART] Approach Using Conventional GIC. Groups II And III: The Carious Primary Molar Was Restored With ART Approach Using Experimental GIC Containing Chlorhexidine Diacetate [CHX] 1% And 2%, Respectively (w/w). Clinical Performance For All Groups Was Assessed At 3, 6, And 12 Months. Results Were Statistically Analyzed Using Chi-square Tests.

Results: Results Showed No Significant Difference In The Survival Rate, Between All Groups, At The Different Time Periods. Conclusion: The Addition Of 1 And 2% CHX To GIC Did Not Compromise The Clinical Effectiveness Of GIC Used In The ART Approach.

Mahmoud Elshahat Mohamed, Heba Elsayed And Nahed Aboazma ,

ABSTRACT
Oral Squamous Cell Carcinoma (OSCC) Is A Characteristic Aggressive Tumor Representing A Significant Public Health Threat All Over The World. Oral Verrucous Carcinoma (OVC) Is An Uncommon Rare Low-grade Variant Of Well Differentiated OSCC, Which Accounts For 2-10% Of All Oral Carcinomas. Thrombospondin-1 (TSP-1) Is An Extracellular Matrix (ECM) Protein That Participates In Cellular Responses To Growth Factors, Cytokines And It Regulates Cell Proliferation, Migration And Apoptosis.

Aim: This Work Aimed To Assess The Relation Of TSP-1 Expression To Biological Behavior Of OSCC And OVC.

Materials and Methods: Forty Paraffin-embedded Specimens Divided Into 30 Cases Of OSCC And 10 Cases Of OVC Obtained From The Archives Of Oral Pathology Department, Faculty Of Dentistry, Tanta University.

Results: This Study Revealed That TSP-1 Expression In Stromal Cells, There Was A Significantly Higher Expression In Moderately And Poorly Differentiated OSCC In Comparison To Well Differentiated Ones. While TSP-1 Expression Was Weak In Well Differentiated OSCC And OVC.

Hanaa Saber Rabeae, Cherif Adel Mohsen And Shams Waaz Amgad,

ABSTRACT
Statement Of Problem: Occlusal Veneers Are Introduced As A Restoration Of Erosive Cases. Evaluation Of Different Machinable Ceramic Material To Be Used For Occlusal Veneer Should Be Occured.

Purpose: To Evaluate The Marginal Adaptation And Color Of Occlusal Veneer Restorations Using Computer Aided Design And Computer Aided Manufacturer (CAD/CAM) Ceramic Material (IPS E.max CAD) And Hybrid Ceramic Material (VITA Enamic).

Materials and Methods: Ten Cases With Posterior Occlusal Surface Wear Were Selected And Divided Into Two Groups According To A Ceramic Material Which Was Used (5 Cases Each):- The First Group : IPS E.max CAD Ceramic Occlusal Veneers Cemented By RelyX Ultimate Clicker Resin Cement. (5 Cases). The Second Group: VITA ENAMMIC Hybrid Ceramic Occlusal Veneers Cemented By RelyX Ultimate Clicker Resin Cement. (5 Cases). Marginal Adaptation Was Measured Using Cone Beem Computed Tomography (CBCT) And Color Shade Was Meagured Using VITA Easy Shade Device After Cementation, 3,6,9 Months.

Results: Between The Two Materials There Was A Significant Difference Between The Two Materials. There Was A Significant Difference By Time Between Follow Up Visits But Still In Clinical Accepted Range. In The Two Materials There Was No Significant Difference Between Measurement Of Time Of Cementation And After 3 Months, There Is A Significant Difference Between (0 Day, 3 Months) And (6 Months, 9 Months), No Significant Between 6months And 9months. Conclusion: VITA Enamic Has Higher Marginal Adaptation Than IPS E.max CAD. IPS E.max CAD Has Color Stability More Than VITA Enamic. According To Color; VITA Enamic Can Be Accepted As Esthetic Restorartion In Posterior Region. Clinical Implication: Within The Limitation Of This Study; IPS E.max CAD And VITA Enamic Are Clinically Accepted To Be Used As Occlusal Veneer.

Mohammed Mohammed Ahmed Elhag, Ahmed M. Abd Alsamad And Mushira M. Dahaba,

ABSTRACT

Objectives: The Present Study Was Designed To Assess The Effect Of CBCT With Different Voxel Sizes On The Accuracy Of Surgical Guide Fabrication On Computer Guided Implantology.

Materials and Methods: This Study Was Conducted On Ten Patients. The Patients Were Divided Into Two Groups. One Group Received Dental Implants Using Surgical Guides Designed From CBCT With 0.2 Mm Voxel Size While The Other Group Received Dental Implants Using Surgical Guides Designed From CBCT With 0.4 Mm Voxel Size. The Patients Were Asked For Post-operative CBCT To Compare The Accuracy The Surgical Guide. Linear And Angular Deviations Were Measured Between Planned And Actual Position In Both Groups. The Results Were Tabulated And Statistically Analyze.

Results: Surgical Guides Manufactured With CBCT Of 0.2 Mm Voxel Size Showed Statistically Significantly Lower Median Linear And Angular Deviation Than Surgical Guides Manufactured With CBCT Of 0.4 Mm Voxel In BL Direction. While There Was No Statistically Significantly Difference Between The Two Groups In Linear And Angular Deviation In MD Direction. Conclusion : There Was No Clinical Significantly Clinical Difference In Linear And Angular Accuracy Between Surgical Guides Manufactured From CBCT With Voxel Size Either 0.2mm Or 0.4 Mm.

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.

A. M. El-Marhomy , Thuraia M. Genaid Wedad M. Ethman And Tahany Mahmoud Hamdy ,

ABSTRACT


Aim: One-year Clinical Evaluation Of Different Non-invasive Management Of Initial Occlusal Carious Lesions.

Materials and Methods: Ten Patients With Four Initial Occlusal Carious Lesions Were Selected And Examined With DIAGNOcam And ICDAS Visual Criteria To Select Teeth Having ICDAS Code 1 And Code 2. Forty Lesions Were Divided Into Four Groups According To The Material Used For Treatment Were (group I: Icon?, Group II: FissealTM, Group III: Duraphat, Group IV: Left Without Treatment). The Teeth Were Subjected To Clinical Follow Up Schedule Representing Three Follow Up Periods (baseline, After 6 And 12 Months) During Which The Efficacy Of Tested Materials To Arrest Caries Progression Was Assessed Radiographically Through The Subtraction Of Pixel Grey Value Measurements. 1st Subtraction, Subtracting The Baseline Values From Those After 6 Months, 2nd Subtraction, Subtracting Values Of 6 From Those After 12 Months. The 3rd Subtraction, Subtracting The Baseline Values From Those After 12 Months.

Results: All The Tested Groups Showed Different Degree Of Continuous Lesion Progression With No Significant Difference In Group I, II And III. While, Group VI Recorded A Significant Difference With No Difference Between Its 1st Subtraction And 2nd Subtraction. However, There Was A High Significant Difference Between Its 3rd Subtraction Versus Both The 1st And 2nd Subtraction. The Effect Of All The Tested Groups On Caries Progression Showed A High Statistically Significant Difference At Each Evaluation Period With No Significant Difference Between Group I And Group II While Both Groups Were Significantly Different From Group III. However, Group IV Recorded A High Significant Difference From Groups I, II And III.

Conclusions: ICON?, FissealTM And Duraphat Were Effective To Hamper The Caries Progression Of Initial Occlusal Carious Lesions. The Initial Occlusal Carious Lesion Progressed Significantly In The Untreated Lesions Indicating That The Treatment Is Essential.

Gamal A.M. And Khattab N.M. ,

ABSTRACT


Introduction: Chemo-mechanical Caries Removal Is A Minimal Invasive Technique For Caries Removal, Was Developed To?remove Infected Dentine Without Altering The Healthy Dental Tissue, One Of These Techniques Is Papacarie Gel.

Aim: The Aim Of This Study Was To Evaluate The Effect Of Papacarie Gel For Chemomechanical Caries Removal Both Clinically And Radiographically. Methods: Twenty Children Ranging In Age From 4-7 Were Selected, Caries Was Removed Using Papacarie Gel. Split Mouth Technique Was Applied In Which, Rights Side (first Group) Was Restored With Universal Micro Hybrid Photopolymerised Composite (Harvard Restore Composite) And The Left Side (second Group) Was Restored With Universal Nano Hybrid Photopolymerised Composite (Grandio). All Patients Were Evaluated Every 3 Months For A Period Of One Year Both Clinically And Radiographically.

Results: None Of The Restored Teeth In Both Groups Showed Failure At The End Of Clinical Follow Up Periods. No Significant Difference Between Groups Was Found Regarding The Clinical And Radiographic. Conclusion: Papacarie Is An Effective Caries Removal Agent And Does Not Affect Bond Strength Of Composite Resin Restorations.

Mohamed Saleh Mohamed, Cherif Adel Mohsen And Shams Waaz Amgad,

ABSTRACT
Purpose To Evaluation The Effect Of Deep Marginal Elevation Technique On Fracture Force Of CAD-CAM-fabricated Overlay Restorations Using Hybrid Ceramic Material (VITA Enamic). Materials And Methods Twenty Overlay Restorations Were Constructed In This Study. The Samples Were Divided Into Two Main Groups According To The Ceramic Material (n=10). The Type Of Ceramics That Was Used Is (vita Enamic). The First Group: VITA ENAMMIC Hybrid Ceramic Overlays Without Deep Marginal Elevation (DME). The Second Group: VITA ENAMMIC Hybrid Ceramic Overlays With Deep Marginal Elevation (DME). The Two Main Groups Was Cemented By RelyX Ultimate Clicker Resin Cement.

Results: There Was A Significant Difference Between The Vita Enamic Material With DME And Without DME Technique. The First Group Was Higher Than The Second Group. Conclusion: Although The Deep Marginal Elevation Technique Has A Lower Fracture Strength But It Is Considered A Promising Treatment.

Aly Gomaa, Khaled Barakat And Ahmed Mahrous,

ABSTRACT
Orbital Floor Fractures Are Traditionally Treated By Reduction Through Trans-orbital Approach, Internal Rigid Fixation, And Primary Bone Grafting. A Different Approach To The Orbital Floor Reduction And Fixation Through The Underneath Antrum Was Popularized In The Evolving Maxillofacial Endoscopic Surgery Era. The Endoscopic Reduction Of Orbital Floor Fracture Offers Great Advantages Over The Traditional Technique.