Mahmoud Abdallah Abdelmottaleb, Amal Fathy Kaddah And Mostafa Helmy,

ABSTRACT
Randomized Clinical Trial Was Carried Outto Compare Between Chewing Efficiency Of Mandibular Complete Denture Constructed From Two Different Materials; Metal Reinforced Polyamide And Conventional PMMA. Twenty Four Completely Edentulous Patients. The Patients Were Divided Into Two Equal Groups, Group I Received Conventional Maxillary And Mandibular Heat Cured PPMA And Group II Received Conventional Heat Cured Maxillary Denture And Metal Reinforced Polyamide Mandibular Denture. Patients Of Both Groups Were Evaluated By Chewing Efficiency Measurements At The Time Of Prosthesis Insertion As Well As Three And Five Weeks Later By Sieve Method. The Results; The Results Of This Study Showed That Chewing Efficiency Measurements In Group II Were Greater Than That Of Group I At Time Of Denture Insertion.

Katreen Tawfik , Shereen Hafez And Mohamed Adel Ezzat,

ABSTRACT
Objective: This Study Was Conducted To Evaluate The Clinical Performance Of Self-etch Adhesive With Chlorhexidine Versus That Of The Conventional Adhesive Without Chlorhexidine In Class II Cavities In High Caries Risk Patients.

Materials and Methods: 37 Patients Of High Caries Risk Were Randomly Selected Each Patient Received At Least Two Class II Restorations Randomly,one With A Conventional Adhesive System (Futurabond M+ (VOCO, Cuxhaven, Germany)) , And The Other With The Intervention Adhesive System With 0.2 % Chlorhexidine (Peak? Universal Bond (Ultradent Products Inc., South Jordan, Utah, USA)

Results: The Assessment In This Study Was Done By Two Methods Clinical And Radiographic Assessment. There Was No Statistical Significant Difference Between Control And Chlorhexidine Groups In Immediate, 6 Months And 12 Months Follow-up. Conclusion: Self-etch Adhesive Systems With Or Without Chlorhexidine Seem To Bond Effectively With Very Good Results Through The Follow Up Period.

Eman A. El-Ashiry,

ABSTRACT

Objectives: To Assess The Curative Capability Of Adipose Tissue Derived Mesenchymal Stem Cells ?AT-MSCs? Contrasted With Bone Marrow Derived Mesenchymal Stem Cells ?BM-MSCs? On Healing Of Surgically Formed Cleft Lip In Dogs.

Materials and Methods: Split Mouth Experimental Study Was Done On 12 Healthy And Vaccinated Mongrel Dogs, 12-18 Months And Weight Range Of 20kgs. Dogs Were Divided Into 2 Groups: In -group A, The Test Side, The Surgically Created Cleft Lip On The Right Side Of Maxilla Was Transplanted With ?AT-MSCs? And Scaffold As Well As Growth Factors. While, In The Control Side, The Surgically Created Cleft Lip On The Left Side Of Maxilla Was Filled With Scaffold And Growth Factors Only. In-group B, The Test Side, The Surgically Created Cleft Lip On The Right Side Of Maxilla Was Transplanted With ?BM-MSCs? And Scaffold As Well As Growth Factors. The Control Side, The Surgically Created Cleft Lip On The Left Side Of Maxilla Was Transplanted With Scaffold And Growth Factors Only. Resorbable Sutures Were Used To Suture The Flaps. The Collected Samples Were Evaluated Clinically After 1.5- And 3-months Following Scarification Of The Dogs. The Data Was Analysed Using T-test And Descriptive Procedure (p=0.05).

Results: ?AT-MSCs? As Well As ?BM-MSCs? Are A Valuable Source For Soft Tissue Healing. Both Secrete Healing Markers ?VEGF, Collagen, TGF, And ALP? That Paly Significant Role In Restoring Soft Tissue Integrity. ?AT-MSCs And BM-MSCs? Effects Were Documented Clinically And Immunohistochemically, As There Were Areas Of New Vascularization That Assure Great Potentiality Toward Healing. ?AT-MSCs? Or ?BM-MSCs? Increase Regeneration And Healing Of The Defects As Early As 1.5 And 3 Months. Conclusion: AT-MSCs And BM-MSCs Are Interesting Tools In Soft Tissue Healing. ?AT-MSCs? In Experimental Investigations Revealed Comparable Results To ?BM-MSCs?. Also, It Is Easier In Harvesting, Requires A Secure Method To Get Stem Cells As Well As Lesser Chance Of Infection, And Lower Cost.

Ahmed Youssef, Mohamed Riad And Mohamed Zayed,

ABSTRACT


Introduction: Approaches For The Management Of Dental Caries Have Changed Dramatically In Recent Years, Evolving From The Traditional, Largely Restorative Treatment Approach To A Preventive Approach, Non Invasion Or Minimal Invasion. Resin Infiltration Technique Is A Novel Technology That Seems To Bridge The Gap Between Noninvasive And Minimally Invasive Treatment Of Initial Dental Caries, Postponing As Long As Possible The Need For A Restoration.

Materials and Methods: Ten Patients Were Recruited Through The Faculty Of Dentistry Clinics At Minia University For This Clinical Study. Digital Photographs Were Obtained Under Standardized Conditions Using A Fixed Digital Camera With A Macro Lens And A Point Source Flash Positioned At A Fixed Focal Distance From The Patient In A Dark Room To Eliminate The Room Light Variant. White Spot Lesions (WSL) Were Resin Infiltrated With Icon (DMG, Hamburg, Germany). Remin Pro Was Applied Chair Side In The Clinic By The Operator With A Polishing Brush On A Low Speed Handpiece For 5 Minutes On The Enamel Surfaces. These Procedures Were Repeated For 7 Consecutive Days. Result: Resin Infiltration Showed Significant Color Improvement Than Remain Pro. Conclusion: Resin Infiltration Is A Novel Protocol For White Spot Lesions And It Is Recommend To Combine Resin Infiltration With Fluoride And Hydroxyapatite Applications To Achieve Ideal Masking, Treatment And Preventive Protocol.

Yousra Khaled Mohamed Ezzat , Abeer Mahmoud Marzouk And Geraldine Ahmed ,

ABSTRACT


Introduction: Achieving Profound Pulpal Anesthesia In Teeth With Irreversible Pulpitis Is Quite Challenging And Sometimes Difficult. This Study Evaluated The Efficacy Of Selective COX-2 Inhibitors As Premedication In Controlling Intra-operative And Post-endodontic Pain After Single Visit Endodontic Treatment Of Mandibular Molar Teeth With Symptomatic Irreversible Pulpitis As Compared To Placebo. Methods: In A Randomized Double-blinded Clinical Trial, 46 Patients (23 Per Group) With Irreversible Pulpitis Were Given 200mg Celebrex, Or Placebo 1 Hour Before Local Anesthesia. Each Patient Recorded Their Pain Score On A Visual Analog Scale Before Taking The Medication, During Access Cavity Preparation And During Root Canal Instrumentation. No Or Mild Pain At Any Stage Was Considered A Success. Data Were Analyzed By The Mann-Whitney U Test For Comparison Between The Two Groups And Analysis Of Variance Tests.

Results: There Was A Statistical Gradual Reduction Of Pain In Both Groups Through All Time Intervals. At 12 Hours Post-operatively, Celebrex Group Showed Statistically Significant Higher Percentage Of Pain Reduction As Compared To The Placebo Group (p< 0.05). Regarding Long Buccal Infiltration And Intra-pulpal Anesthesia, Celebrex Group Showed Significantly Lower Percentage Of Using Supplemental Anesthesia (p=0.008).

Conclusions: Premedication With 200mg Single Dose Celebrex Prior To Initiation Of Endodontic Treatment Augmented The Effect Of Inferior Alveolar Nerve Block And Has A Satisfactory Effect On Reduction Of Post-operative Pain.

Ahmed Mohamed Ahmed Ali Salama Shrief Adel El-Khodary And Wafaa Ahmed Omar Segari,

ABSTRACT
Objective: The Purpose Of This Study Was To Evaluate The Shaping Ability Of S5 Rotary System In Relation To ProTaper Universal System In Preparation Moderately Curved Root Canal Their Effect On The Canal Transportation, Centering Ability And Canal Curvature Change.

Materials and Methods: Collected Thirty Mesiobuccal Root Canals Of Extracted Human Mandibular First Molar Were Divided Into Two Equal Groups; ProTaper And S5. The Samples Were Mounted In Two Moulds Of Acrylic Resin For Pre-instrumentation Imaging Using Cone Beam Computed Tomography (CBCT). After Root Canal Instrumentation, Post-instrumentation Imaging Using CBCT Was Done With The Exacted Parameters Of The Pre-instrumentation Imaging. The Pre And Post-instrumentation CBCT Images Were Superimposed To Measure The Dentin Thickness At Three Root Canal Levels; Canal Transportation And Centering Ability Were Recorded According To Formula Introduced By Gambill Et Al (1996), While The Change In The Angle Of Canal Curvature Was Recorded Following Estrela Et Al (2008). Statistical Analysis: Data Was Tabulated And Statistically Analyzed; Independent Samples T-test Was Used For Comparing The Variables Between The Two Groups At Each Root Canal Level And Also Was Used For Comparing The Percentage Of Change In The Canal Curvature Angle Between The Two Groups. The Significance Level Is Considered At P ? 0.05.

Results: There Was No Statistically Significant Difference Between The Two Rotary Systems In Canal Transportation Except At The Coronal Level; S5 Recorded Statistically Lower Mean Value Of Root Canal Transportation Than ProTaper System. The Centering Ratios And The Changes In The Angles Of Canal Curvature After The Use Of Both Systems Were Not Statistically Significant. None Of The Used Systems Showed Perfect Centering Ability. Conclusion: Under Limitations Of This In Vitro Study, It Can Be Concluded That; Preparation Of Moderately Curved Mesio-buccal Root Canals With S5 Was Associated With Lesser Coronal Transportation And Similar Middle And Apical Transportation, Centering Ability, And Canal Curvature Change When Compared To ProTaper.

Maged Yehia Elsaid, Mostafa Abd Elhameed Hassan And Rehab Khalil Safy,

ABSTRACT


Aim: The Purpose Of This Study Was To Investigate The Effect Of Different Surface Treatments And Different Types Of Resin Composites On The Micro-tensile Bond Strength And Adaptation Of Repaired Microhybrid Resin Composite.

Materials & Methods: A Total Number Of 90 Cylinders Of Microhybrid Resin Composite Were Created And Stored In Artificial Saliva For Six Months At Room Temperature. After Storage The Cylinders Were Removed From The Artificial Saliva And Were Divided Randomly Into Three Groups According To Type Of The Resin Composite Material Which Was Used For Repair (M1; Bulk-fill Resin Composite, M2; Flowable Resin Composite And M3; Microhybrid Resin Composite). Each Group Was Subdivided Into Three Subgroups According To Surface Treatment Used (T1; Etching And Rinsing Without Application Of Adhesive, T2; Etching And Rinsing Followed By Application Of Adhesive And T3; Self-etch Adhesive System) (n=10). Another Cylinder Of Repairing Resin Composite Material Was Fabricated On The Surface Of The Aged Cylinders After Application Of Surface Treatment. For Micro-tensile Bond Strength (?TBS) Assessment 45 Specimens Were Serially Sectioned Creating Beams. The Prepared Beams Were Tested Individually Using A Universal Testing Machine. Maximum Tensile Stresses Were Recorded In Mega Pascal (MPa). For Assessment Of Adaptation, The Remaining 45 Specimens Were Immersed In A Dye Solution And The Interfacial Gap Distance Was Measured Through A Stereomicroscope.

Results: The Highest Micro-tensile Mean Load Value Was Recorded When The Bulk-fill Resin Composite Was Used As A Repairing Material After Surface Treatment Of The Aged Resin Composite With One-step Self-etch Adhesive System. The Highest Adaptation Mean Value Was Recorded When The Flowable Resin Composite Was Used As A Repairing Material After Surface Treatment Of The Aged Resin Composite With One-step Self-etch Adhesive System. Conclusion: Surface Treatment Of The Aged Resin Composite With One-step Self-etch Adhesive System Improved The Micro-tensile Bond Strength And Adaptation Between Aged Resin Composites And Both Bulk-fill And Flowable Resin Composite As Repairing Materials.

Olaa H. Mansour, Mona Y. Abd El Razzak, Lubna A. El Gmmal, Abd El Aziz Saeed And Enas A. EL- Zamarany,

ABSTRACT

Objectives: To Evaluate The Effect Of Locally Delivery Of Chitosan Nanoparticles Gel As An Adjunct To The Therapy Of Moderate Chronic Periodontitis In Smoker Patients.

Materials and Methods: Twinty Adult Smoker Patients Between 40 To 55 Years Old With Moderate Chronic Periodontitis. Patients Were Divided Randomly Into Two Groups Receive One Of The Following Treatments: GroupI Full Mouth SRP Only As Control Group And GroupII SRP Followed By Local Application Of Chitosan Nanoparticles Gel As Test Group. Assigned Treatment Were Performed At Base Line And At 3 Months And Using The Clinical Parameters And ELISA As Immunological Test.

Results: Between Study Group Comparisons Indicated PD Reduction And CAL Gain Were Greater In The Test Groups Than In The Control Group At 3 Months Within Study Group Comparisons Indicated Reduction In MMP-8 In Test Groups Greater Than Control Group.

Conclusions: These Findings Suggest That Locally Delivered Chitosan Nanoparticles Gel Produces Additional Favorable Clinical And Immunological Results To Moderate Chronic Periodontal Therapy In Smoker Patients.

Ahmed M. Elbahar, Mohamed G. Kamel And Wael M. Refai,

ABSTRACT
Objective: Dental And Skeletal Analysis Of Maxillary Arch In Cleft Palate Patients After Rapid Maxillary Arch Expansion By Bonded Hyrax Appliance Using Cone-beam Computed Tomography.

Materials and Methods: RME For 10 Cleft Patients Ranged From 8-12 Years Old Then Pre And Post Expansion CBCT Image Was Taken To Them And Analyzed By On Demand 3D App Software (Cybermed, South Korea) Was Utilized For Linear And Angular Measurement.

Results: Significant Increase In Arch Length And Width Conclusion: There Are Many Skeletal And Dental Changes After RME On Cleft Patients.

Mohamed Abdel Ghafar M., Mohamed G. Kamel And Wael M. Refai,

ABSTRACT
Objective: Skeletal And Dental Effect Of Modified Tandem Appliance In Maxillary Protraction Of Cleft Lip And Palate Patients Using Cone Beam Computerized Tomography.

Materials and Methods: The Material Consisted Of Pre-treatment And Post-treatment CBCT Of 10 Growing Children With Cleft Palate And Lip Patients With Retruded Maxilla Ranging In Age From 6 To 11 Years. Modified Tandem Appliance Is An Intraoral Appliance Which Has Been Used Successfully For The Treatment Of Growing Class III Patients. Pre-treatment And Post-treatment CBCT Analyzed By On Demand 3D App Software Was Utilized For Linear And Angular Measurement.

Results: Significant Improvement In Dental And Skeletal Relations. Conclusion: The Modified Tandem Appliance Was Effective In Management Of Skeletal Class III Malocclusions Via Skeletal And Dental Effects.