Mohamed Sawi Mohamed, Nadia. A. Abbas And Mohamed. F. Abdallah,

ABSTRACT
AIM: In-vitro Study Was Carried-out To Compare The Dimensional Accuracy Of Three Different Viscosities Of Additional Elastomeric Polyvinyl Siloxane Impression Material (PVS)

Materials and Methods: Fabrication Of Custom Tray On Acrylic Model (Kennedy Class II Modification Then An Impression Was Made Using Three Deferent Viscosity Of Polyvinyl Siloxane Impression Material. The Impression Was Divided Into Four Groups. Group I: Impressions Using Light Polyvinyl Siloxane, Group II: Impression Using Medium Polyvinyl Siloxane, Group III: Impression Using Heavy Polyvinyl Siloxane, Group IV: Impression Using Three Viscosities In Single Impression. Finally Measurement From Acrylic Cast Was Recorded And Compared To That Measured From The Stone Cast Poured From The Different Viscosities Of The Impression Materials.

Results: When The Three Viscosities Used Together In The Same Tray They Produced Less Accurate Cast Than Medium Alone. However It Was More Accurate Than Light And Heavy Viscosities

Maha Sayed Mostafa Darwish Mohamed Galal Bihery , Mostafa Ibrahim Shendy And Ahmed Mohamed Salah,

ABSTRACT


Aim: Evaluation Of The Efficacy Of The Pre-shaped Resorbable Membrane On Increasing Height Of Atrophic Posterior Alveolar Ridge In Mandible VS Low Profile Titanium Mesh By Using CBCT Scan. Patients And Methods: The Study Was Conducted On 8 Bilateral Posterior Mandibular Sides Of Eight Patients Which Were Suffering From Severe Mandibular Atrophy. Each Patient Was Treated By Vertical Ridge Augmentation By Autogenous Cortico-cancellous Bone Graft Taken From Anterior Iliac Crest Of The Same Patient. In One Mandibular Side Of Each Patient Bone Graft Protected With Titanium Mesh (control Group) And The Other Side In The Same Patient Protected With Pre-curved Membrane (study Group).The Patients Were Followed Up For Six Months Postoperatively Clinically And By Cone Beam Computed Tomograms Immediately Postoperative, Which Represented The Base Line Radiographs And After Six Months, Bone Height Was Measured To Compare Amount Of Bone Resorption Of Both Groups.

Results: All Statistical Tests Were Two Sided And Performed At A Significance Level Of ^5; =.05 And By Using Student�s T-test (Student�s T-test: T = 2.414, P < .05). The Results Showed A Statistically Significant Difference Between The Resorption Rate RR Of The Vertically Augmented Alveolar Ridge Under The Membrane In The Study Group (n=8) And RR In The Control Group (n=8). The Results Showed Increase In Resorption Rate In The Study Group More Than The Control Group. Conclusion: The Resorption Rate In Augmented Bone Is Higher In Sides Where The Membrane Was Used Than The Sides In Which The Ti- Mesh Was Used Because The Membrane Loses Its Form And Its Rigidity By Humidity Before Consolidation Of The Augmented Bone.

Eslam Said Mohamed, Ragia Mohamed Mounir, Nadia Galal Mohamedand Maha Mohamed Sallam .,

ABSTRACT
Objective: To Evaluate The Effect Of Using Simvastatin On Bone Osseointegration Surrounding Dental Implants. Methodology: Twelve Implants That Were Inserted And Divied Into 2 Equal Groups, Each Group Contained Six Implants (simvastatin Group And Control Group). All Implants Were Done Using Delayed Submerged Implant Insertion Technique. Group One Received Simvastatin Powder As An Adjunctive; To Improve The Osseoientgration Of The Bone Surrounding The Dental Implants, While Group Two With No Adjunctive. All Patients Were Followed Up Clinically And Radiographically For Osseointegration Using Cone Beam CT Two Months, And Six Month Postoperatively.

Results: Simvastatin Group Showed Statistically Low Significant Increase In The Percentage Of Increase In The Mean Bone Density, When Compared To The Control Group. Moreover, It Showed Statistically Low Significant Decrease In The Bone Height Loss Than The Control Group. Conclusion: Simvastatin Powder Is A Safe, Efficient And Easy Way For Mild Acceleration Of Bone Healing And Osseointegration Surrounding Titanium Dental Implants. The Simvastatin Drug Has The Main Function As Antihypercholaesterlemia Drug In Addition To Its Ostegeonic Effect On Bone.

Hassan Mohamed Salah; Manal Mohamed Hosny; Olfat Gameel Shaker And Rasha Wagih Mostafa .,

ABSTRACT

Objectives: The Aim Of The Present Study Was To Evaluate The Possible Effect Of Vitamin E Administration As An Adjunct To Scaling And Root Planing On GCF Levels Of Malondialdehyde And Clinical Parameters In Patients With Chronic Periodontitis. The Adjunctive Effect Of Vitamin E Was Compared To Scaling And Root Planing Alone. Methods: Thirty-two Patients With Chronic Periodontitis Participated In This Study. They Received Scaling And Sub Gingival Debridement With Either Administration Of Vitamin E (Group I) Or Placebo (Group II). The Primary Outcome Was To Measure The Level Of Malondialdehyde (MDA) In Gingival Crevicular Fluid (GCF) Using The Quantitative Sandwich ELISA Technique. In Addition, Clinical Parameters Such As PLI,GI, PPD And CAL Were Recorded At Baseline And 3 Months After Treatment. Results The Mean Difference Between Baseline And 3 Months Scores Presented Significant Difference Between The 2 Groups With Respect To CAL And PD. The Test Group Presented More Gain In CAL (0.78mm Versus 0.46mm) And More Reduction In PD (0.81mm Versus 0.41mm). The Test Group Presented Higher Reduction In GCF Level Of MDA 3 Months Posttreatment. However, The Difference Between Groups Did Not Reach Statistical Significance. Conclusion: Scaling And Root Planing Significantly Reduced GCF Levels Of MDA 1 And 3 Months After Treatment Compared To Baseline Values. The Adjunctive Administration Of Vitamin E Produced Higher Reduction In GCF Levels Of MDA 3 Months After Treatment In Comparison To Control Group. The Adjunctive Administration Of Vitamin E Produced More Significant Reduction In Full Mouth Scores For PD And More Significant Gain In Full Mouth Scores For CAL 3 Months After Treatment.

Ahmed Mohamed Samy, Moustafa Ezz, Mohamed El Serougy And Ramy El Beialy .,

ABSTRACT
Objective: The Aim Of This Study Was To Evaluate The Stability And Measuring Marginal Bone Loss In Early Loading Of Single Dental Implants In The Mandibular Posterior Area. Patients And Methods: The Study Sample Consisted Of 20 Patients Who Were Enrolled From Outpatients Clinic At The Department Of Oral And Maxillofacial Surgery, Faculty Of Oral And Dental Medicine, Cairo University

Results: This Study Was Conducted To Evaluate The Stability And Measure The Marginal Bone Loss In Early Loading Of Single Dental Implants In The Mandibular Posterior Area. A Total Of 20 Patients With Age Range 21-51 Years, 8 Males And 12 Females Participated In The Study. Conclusion: 1-The Implant Stability Increases After Early Loading Which Increases The Rate Of Success. 2-The Rate Of Marginal Bone Loss After Early Loading Is Adequate For The Success Of The Dental Implant.

Doaa Mohamed Sayed, Nadia A Abbas And Nora Cheta,

ABSTRACT
This Study Aimed To : Compare The Retention Of PEEK And BRE.FLEX (second Edition) Materials In Maxillary Class III Modification 1 Removable Partial Dentures Using Digital Gauge Force Device.

Materials and Methods: Thirty Four Patients Having Kennedy Class III Modification 1 Maxillary Partially Edentulous Ridges With Fully Dentate Mandibular Arch Were Divided Into Two Equal Groups To Fabricate The Thermoplastic Materials. The First Group Received PEEK Material. The Second Group Received Bre.Flex Material. The Retention Was Measured Using Digital Force Gauge Which Is An Advanced Type Of Force Meter Device : At The Time Of Denture Insertion, After Two Weeks And After Four Weeks Of Denture Insertion. The Collected Data Were Tabulated And Statistically Analyzed.

Results: Showed That The Difference Between The Two Groups Was Statistically Significant Was Reported Between Two Groups Regarding Retention. Conclusion : The Mean Retentive Force Required To Remove The Bre-flex Removable Partial Denture Was Found To Be Statistically Significant Lower Than This Required To Remove PEEK Removable Partial Denture .

Dina Gameel Anis, MahaEshakAmer And Mohamed Salah Abd Elmotamed,

ABSTRACT

Objectives: The Purpose Of The Study Was To Assess The Relation Between Clinical And Magnetic Resonance Imaging Findings In Temporomandibular Joint Disorders.

Materials and Methods: MRI Scanning And Clinical Examination Were Performed To Twenty Patients Of Both Sexes And Varying Ages, Complaining Of TMJ Disorders. The Disc Position, Disc Morphology, Condylar Osseous Changes, Retrodiscal Tissue Status And Joint Effusion Were Assessed. The Correlation Between The Clinical And MRI Findings Was Statistically Analyzed.

Results: Pain In The Temporomandibular Region Was The Most Common Clinical Presentation, It Accounts For 67.5% Of Cases. Significant Correlation Was Found Between Pain And Disk Morphology, Condylar Osseous Changes, Retrodiscal Tissue Status (p=0.001, 0.019, 0.003 Respectively)and With Disc Displacement. Statistically Significant Relationship Was Also Found Between Disk Position, Eminence Changes And TMJ Sounds (P=0.025, 0.004 Respectively), As Well As Between Disk Position And Maximum Mouth Opening (MMO)( P=0.018). There Was A Direct Correlation Between Retrodiscal Tissue Status And Mandibular Deviation (p=0.021). Conclusion: Clinical Evaluation Of The TMJ Can Be Nonspecific Due To Overlap Of Symptoms Between Internal Derangement And Myofacial Pain Dysfunction. MRI Should Be Part Of The Standard Evaluation When An Internal Structural Joint Abnormality Is Suspected .Disc Displacement As Observed With MRI Correlated Well With Clinical Signs And Symptoms.

Mohamed Sawi Mohamed, Nadia. A. Abbas And Mohamed. F. Abdallah,

ABSTRACT
AIM: In-vitro Study Was Carried-out To Compare The Dimensional Accuracy Of Three Different Viscosities Of Additional Elastomeric Polyvinyl Siloxane Impression Material (PVS)

Materials and Methods: Fabrication Of Custom Tray On Acrylic Model (Kennedy Class II Modification Then An Impression Was Made Using Three Deferent Viscosity Of Polyvinyl Siloxane Impression Material. The Impression Was Divided Into Four Groups. Group I: Impressions Using Light Polyvinyl Siloxane, Group II: Impression Using Medium Polyvinyl Siloxane, Group III: Impression Using Heavy Polyvinyl Siloxane, Group IV: Impression Using Three Viscosities In Single Impression. Finally Measurement From Acrylic Cast Was Recorded And Compared To That Measured From The Stone Cast Poured From The Different Viscosities Of The Impression Materials.

Results: When The Three Viscosities Used Together In The Same Tray They Produced Less Accurate Cast Than Medium Alone. However It Was More Accurate Than Light And Heavy Viscosities

Ahmed Abdelmegeed Mashaly, Abdul Moneim Tawfik Gadallah And Wael Mohamed Saied,

ABSTRACT


Purpose: The Aim Of This Study Was To Compare The Clinical And Radiographic Outcomes Between Immediate Loaded Basal Compression Screw Implants And Conventional Screw Implants.

Materials and Methods: The Study Comprised 16 Patients Who Were Randomly Assigned Into 2 Equal Groups. Group I Patients Received Basal Implants While Group II Patients Received Conventional Implants. All Implants Were Immediately Loaded At 3 Days After Placement. All Patients Were Evaluated Clinically Regarding: Implant Stability At 3 Days, 1, 3 And 6. Pri-implant Probing Depth (PD) , And Radiographically Regarding Marginal Bone Loss (MBL) At 1, 3 And 6 Months After Loading.

Results: During The Follow Up Period Of 6 Months, The Success Rate Of The Groap 1 Was 100% And Groap 2 Was 38.5%. The 16 Patients Were Attended The Recalls Of The Follow Up To The End Time Of The Period Of The Study. No Postoperative Complications Were Shown And Successful Implant Signs Of Osseointegration Without Any Failure Signs (soft Tissue Dehiscence, Infection Or Loosening Of Implants) Except The Failed Conventional Implants, Significant Difference Was Found When We Compared Between Both Groups. Conclusion: Basal Implant Is Can Be Immediately Loaded In Single Stage With Minimally Invasive Flapless Surgery And Minimal Surgical Complications In Atrophic Posterior Maxilla Instead Of Use Of Sinus Augmentation Due To Its High Cost And Long Time Of Waiting.

Mohamed Salah Ghaly, Fatma Abdel Moneim El Hendawy And Ali Ibrahim Abdalla,

ABSTRACT
Objective: The Purpose Of This Study Was To Evaluate Clinically The Nano Composite Facing Of Open-faced Stainless Steel Crowns Compared To Flowable Composite Facing.

Materials and Methods: Fifteen Children5-7years Old Having Bilateral Carious Lesions Of First Deciduous Molars Were Selected. Each Child Required The Following Procedures: Group 1:1stRight Deciduous Molar Was Restored By Open- Faced Stainless Steel Crown With Nano Composite Facing (shade A1). Group 2: 1stLeft Deciduous Molar Was Restored By Open- Faced Stainless Steel Crown With Flowable Composite Facing (universal Shade). Follow Up Was Carried Out For All Cases At 1,3,6,9,12 Months For Clinical Evaluation Of Composites Facings.

Results: There Was No Significant Difference Between Both Types Of Composite Facings In Relation To Facing Retention Although There Were Four Cases That Showed Loss Of Nanocomposite Facings, Also No Fracture Was Recorded At Any Type Of Composite During The Evaluation Period. In Relation To Color Change, There Was A Minor Change Of The Color Of Both Types After 3months With No Significant Difference Between Them.

Conclusions: It Was Concluded That Both Types Of Composites Could Provide Good Results When They Were Used As Facings In Open-faced Stainless Steel Crowns.