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.

Omar S. AboulMakarem, Ahmed S. Hashem And Wael M. Refai,

ABSTRACT
Objective: Skeletal And Dental Effect Of Facemask Therapy VS 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. Facemask Therapy 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, And Were Compared To Data From An Archived Data Of 10 Patients Treated With Modified Tandem Appliance

Results: Significant Improvement In Dental And Skeletal Relations. Conclusion: The Both Appliances Were Effective In Management Of Skeletal Class III Malocclusions Via Skeletal And Dental Effects.

Mona M. AbdulHameed, MostafaTalaat Elgengehi, Mamdouh Sayed Ahmed And Mamdouh Ahmed Aboulhassan,

ABSTRACT
Objective: In This Study A Z-plasty Was Just Incorporated In Orbicularis Oris Muscle To Give A Predetermined Length While Maintaining The Curvilinear Incision Of Millard With No Transverse Scar In The Skin, In A Trial To Attain The Most Aesthetic Result Possible Of Having A Repaired Lip With Reasonable Length And The Least Sacrifying Scar At The First Operation. Background: Successful Surgical Repair Of The Unilateral Cleft Lip And Nose Deformity Could Be Defined As Normal Orbicularis Oris Function And Near-perfect Symmetry Of The Repaired Lip And Nose.(1) Millard?s Technique Represents A Significant Advance, Elegantly Overcoming Many Of The Limitations Of Previously Described Methods Of Violating The Philtral Segment With Unnatural Scars. However, There Remain Instances Where The Lip Fails To Maintain Adequate Height, Particularly In Patients With Wide Complete Cleft Lips Since Then, A Number Of Modifications Have Been Developed In Attempt To Improve Millard?s Original Design To Achieve Sufficient Vertical Lip Height. Methods: In This Randomized Clinical Prospective Trial A Group Of Thirty Patients With Nonsyndromic Unilateral Cleft Lip Were Randomized Into Two Equal Groups. Group A: Undergone Modified Millard?s Technique, Group B: Undergone Orbicularis Oris Muscle Z-plasty Modified Millard?s Technique. 6 Months Postoperatively The Patients Were Photographed To Assess The Length Of Philtral Ridge, Scar Width, And Nostril Width And To Ask Parents About Their Satisfaction.

Results: No Significant Difference In Philtrum Length, Scar Width, Nostril Width Or Parents Satisfaction At 6 Months Postoperatively Between The Two Groups.

Omar Effat Mokhtar, Salah Abdel Fattah Metwaly, Amr Amin GhanemKarim Mahmoud Abdel Mohsen And Ahmed Elsayed Hamed Amr,

ABSTRACT
Objective: Bone Deficiency And Other Anatomical Limitations Might Compromise Dental Implant Surgery In Posterior Maxilla. Short Implant Is An Alternative Treatment To Overcome This Issue. The Purpose Of This Study Was To Compare The Clinical, Radiographical And Patient-recorded Outcomes Of Short Dental Implants (5.5 Mm) Versus Longer Dental Implants (10 Mm) Combined With Bone Added Osteotome Sinus Floor Elevation (BAOSFE) In Rehabilitation Of The Posterior Maxilla At 6 Months Of Loading

Materials and Methods: 13 Patients In Need Of Dental Implant Treatment In The Posterior Maxilla With Total Of 14 Implants, Divided Into Two-arm Equal Parallel Groups. One-way ANOVA Followed By Tukey?s Post-hoc Tests Were Conducted To Compare Implant Stability Quotient Within Each Treatment Group At Different Follow-up Periods. Independent Student-t Test Was Used To Compare Implant Stability Quotient Between The Two Treatment Groups At Each Follow-up Period.

Results: No Statistically Significant Differences In ISQ Mean Values Was Found Between Both Treatment Groups Within Each Follow-up Period.

Conclusions: Both Treatments Showed Comparable High ISQ Values. Limited By An Only 10-month Follow-up Period, These Results May Favor The Use Of The Less Invasive, Time Saving, Cost-effective Short Implant Treatment Option.

Reem Mohammad Al Arawi Mas, Hamdy Abou El-Fotouh And Nora Mohamed Cheta .,

ABSTRACT
AIM : Is To Compare The Liner And Angular Deviation Between The Virtual And The Actual Implant Position Using Surgical Guide Versus Free Handed.

Materials & Methods: Ready-made Epoxy Resin Of Completely Edentulous Mandibular Jaw Models. CBCT Scanning With Virtual Implant Planning Were Used To Develop A Computer Based Surgical Guide Which Was Used To Place The Implants. Models Were Scanned By CBCT After Insertion To Compare The Accuracy Of Planned Position And Actual Position Of Implants Placement By Guided Surgery Versus Free Handed Technique. Linear And Angular Deviations Were Measured Between Planned And Actual Position At The Neck And The Apical Part In Both Groups. Result: The Mean Linear Deviation At The Neck For Free Handed Was 1.01�0.42 Mm; While It Was 1.20�0.29mm For Surgical Guided, The Mean Linear Deviation At The Apical Region For Free Handed Was 1.55�0.62mm; While It Was1.00�0.44mm For Surgical Guided And The Mean Angular Deviation For Free Handed Was 4.3�1.70 ? While It Was 3.0�0.86 ? For Surgical Guided. Conclusion: There Was No Statistically Difference In Linear Lateral And Global Deviation And Angular Deviation In Buccolingual Direction And Mesiodistal Direction Between Both Groups.

Riham Mohammad Al Arawi, Hamdy Abou El-Fotouh And Nora Mohamed Sheta,

ABSTRACT
AIM: The Aim Of This In Vitro Study Was To Compare And Evaluate The Amount Of Force Needed To Fracture The Over Denture Supported By Implant With Ball And Bar Attachments.

Materials & Methods: Two Identical Mandibular Overdentures Were Constructed Over The Stone Cast Which Is Duplicated From Epoxy Resin Model In A Conventional Way. Two Identical Implants (4 X 11mm) Were Placed At The Canine Region On Both Sides Following The Surgical Protocol Of The Implant Placement. The Study Was Divided Into Two Group: Group I: Where The Two Implant Were Attached Together With A Bar. Group II: Where The Two Implants Were Connected To Ball/socket Attachment. Pick Up Technique Of Overdenture With Bar And Ball/socket Attachment Was Done. All Samples Were Individually Mounted On A Computer Controlled Materials Testing Machine With A Load Cell Of 5KN And Data Were Recorded Using Computer Software. The Fracture Test Was Done By Compressive Mode Of Load Applied Occlusally Using The T-shaped Load Applicator. The Software Was Adjusted To Register The Load And The Number Of Cycles Corresponded To The Fracture Of The Specimen. Result: Fracture Resistance Test Results Revealed That The Highest Mean Values Of The Fracture Resistance Loads Were Found In The Over Denture With Bar Group But There Was No Statistical Significant Difference Between The Two Groups Conclusion: Within The Limitations Of This Study It Could Be Concluded That: Using A Bar And Ball As An Attachment System In Implant Retained Over Denture As A Treatment Plan Is A Simple, Affordable With Minimum Surgical Intervention. The Fracture Pattern Of The Over Denture Retained Over The Bar Attachment Was More Favorable And Less Extensive Compared To The Over Denture Retained With Ball/socket Attachment.

Mayada Adel Abo Elela Abo Taleb, Samia Nabawy Serag, Shereen Abdel Moula Ali And Malak Yousef Shoukeba,

ABSTRACT
Conventional Non-surgical Periodontal Therapy Has Been Proven To Be An Effective Treatment For Patients With Chronic Periodontitis. Local Administration Of Antimicrobials Provides A High Concentration Of The Drug In The Pocket And Enhances The Clinical Results Without Any Systemic Side Effects And Bacterial Resistance. Fourteen Patients Were Divided Into Two Groups. Seven Patients In Each Group And Two Sites Were Selected In Each Patient One Of Them Considered As Control Site (SRP). Group?: Received: (chitosan Gel + SRP) And Group??: (triclosan Loaded Chitosan Gel + SRP). Clinical Parameters And PGE2 Measurement Using ELISA Test Were Recorded At Baseline, 1, 3 And 6 Months. The Intergroup Comparison Showed More Favorable Results In Favor To Group ??. Hence, Adjunctive Application Of Triclosan Loaded Chitosan Gel Produces Improvements In The Clinical And Immunological Parameters Over The Traditional Treatment Alone.