Khaled I. Barakat , Ali Abdelazem And Diaa E. Mostafa,

ABSTRACT


Introduction: We Had Hypothesized That The Time Of Surgery Does Not Affect The Amount Of Edema After Genioplasty Orthognathic Surgery Either With Using Piezoelectric Or Conventional Saw In The Osteotomy.Methods: Ten Patients Who Had Genioplasty Orthognathic Surgery Procedures Were Divided Into Two Groups: Group A Fiv Patients: The Piezoelectric Device Was Used For Osteotomy Of Right Sides Of The Patients While The Left Sides By Conventional Reciprocating Saw. While In Group B, Their Use Was Reversed

Results: Although The Operation Time When Using The Piezoelectric Device Was Longer Than Using Conventional Saw, There Was No Markable Difference Between Them Regarding Postoperative EdemaConclusions : There Is No Difference Between Using The Two Devices In Cutting Operations In Terms Of Postoperative Edema, Despite The Length Of The Operation Time When Using The Piezoelectric Device

Asmaa Abubakr Rashed And Ali Ibrahim Abdalla,

ABSTRACT
Aims: The Objective Of This Study Was To Evaluate One-year Clinical Performance Of Composite Veneers Applied With Different Techniques.Methods And Material: This Study Was Conducted As A Modifiedrandomized Split-mouth Design On Site Level, Where The Two Groupes Composite Veneer Techniques Under Investigation Were Randomly Assigned To Either The Right Or Left Upper Anterior Teeth. The (group I) 16 Teeth Were Restored With A Prefabricated Composite Veneer System COMPONEER(COLTEEN), While (group II) 16 Teeth Were Restored With Free Hand Layering Direct Approach With IPS EMPRESS DIRECT (Ivoclar) Assisted With Preformed Template U-VENEER (Ultradent). At Baseline, 6 And 12 Months, The Restorations Were Evaluated Using ModifiedUSBHS Criteria For Marginal Discoloration, Recurrent Caries And Post Operative Hypersenstivity.Statistical Analysis Used: The Recorded Data At The Different Follow Up Periods Were Collected, Tabulated And Statistically Analyzed Using SPSS (Statistical Package For The Social Sciences) Software Version 25.0.

Results: Regarding The All Evaluation Criteria, Were No Statistically Significantlydifferent Between The Two Groups At The End Of Evaluation Period (p?0.05).

Conclusions: The Acceptable Clinical Performance Of Both Composite Veneer Techniques With Only Minor Changes Had Been Recorded Between Baseline And The Follow-up Evaluation At 12 Months.

Omar Khaled Gamil, Weam Elbattawy, Dina Fahim Ahmed And Noha Ayman Ghallab,

ABSTRACT


Aim: The Study Was Aimed At Determining The Prevalence Of Periodontitis Stage III & IV In Adult Egyptian Dental Outpatients Attending The Diagnostic Center At Faculty Of Dentistry, Cairo University Methodology: The Present Study Was Conducted On 750 Subjects. Dental Patients Were Recruited In A Consecutive Manner From The Outpatient Diagnostic Center, Faculty Of Dentistry, Cairo University. A Full Questionnaire Was Filledfor Each Patient Including A Section For Demographic Information Of Age, Sex, Social And Educational Levels Of The Patient. Also, The Oral Health Impact Profile-14(OHIP-14) Questionnaire Was Filled.Conventional Oral Examination Was Held And Clinical Parameters As Plaque Index, Bleeding On Probing, Probing Pocket Depth, Clinical Attachment Level, Gingival Recession Were Measured. Radiographic Examination Was Performed By Digital Periapical Radiographs. All These Parameters Were Subjected To Statistical Analysis.

Results: The Prevalence Of Stage III Was 1.6% While Stage IV Showed The Least Prevalence (0.4%). The Lowest Mean OHIP-14 Scores Were Noticed In Patients With Periodontitis Stages III And IV, With No Statistically Significant Diference Between Them.

Conclusions: The Prevalence Of Stage III And Stage IV Showed The Least Prevalence On A Sample Of Adult Egyptian Dental Patients Compared To Stage I, II And Gingivitis.

Mohamed Galal El Beheiry, Mostafa Ibrahim Shindy And Nesma Mohamed Ibrahim,

ABSTRACT


Aim: The Aim Was To Compare The Value And Efficiencyof Sticky Bone In The Augmentation Of Horizontal Alveolar Ridge Deficienc When Used With Or Without Xenogeneic Bone Graft For Esthetic Implant Placement.

Materials and Methods: Twelve Sites That Require Bone Grafting For Implants Placement For Class IV Ridge Classification(2-4 Mm Residual Alveolar Width) Were Included In The Study. 4 Patients Received Horizontal Augmentation Using Sticky Bone Prepared From 1:1 Mixture Of Autogenous And Xenograft Bone Covered By PRF Membrane. The Other 4 Patients Received Horizontal Augmentation Using Sticky Bone Preparation Of Autogenous Particulate Bone Covered By PRF Membrane. A Modificationof Miniscrews For Stabilization Of The Bone Graft Was Introduced During The Research. CBCT Were Taken Preoperative, Immediate Postoperative And 6 Months To Measure The Horizontal Bone Changes.

Results: There Was No Statistically Significantdifference In Width Mean Changes Between Treatment Groups Immediately Post-operative And After 5 Months.Conclusion: Within Limitations Of The Study, Horizontal Ridge Augmentation Using Sticky Bone Covered By The PRF Membrane Yields Better Results When Particulate Bones Are Used With Fixationscrews. There Is No Statistically Significantdifference In Width Mean Values Between Treatment Groups Before And Immediately After Surgery. While After 5 Months, The Control Group Yielded Higher Width Mean Value Compared To The Intervention Group. Sticky Bone Gain Is Unpredictable With PRF Alone And In Long-span Defects.

Mohamed Ghorab, Mohamed Ahmed Farid Shehab, Mohamed Atef AbdelRasoul And Hossam Abdel Kader El Fol,

ABSTRACT
Aim Out Of The Proposed Prognostic Factors In The Literature To Predict Nodal Metastases In N0 Patients In Head, Tumor Thickness Or Depth Of Invasion Is Highly Regarded As Reliable. In Addition, The American Joint Committee On Cancer Has Issued Its Latest Staging System In January 2017 With The Incorporation Of Depth Of Invasion Into The TNM Staging System. Although The Most Accurate Tumor Thickness Measurement Is Taken Directly From The Specimen After Pathological Examination. Preoperative Estimation Of The Tumor Thickness Is An Important Step In The Decision Making. Our Aim Is To Compare The Tumor Thickness Values Obtained Preoperatively By Ultrasonography And Tumor Thickness Obtained Post Operatively By Pathological Examination And Corelate Both In Predicating Nodal Disease.Methodology The Study Was Conducted On 30 Patients Divided Into Two Groups Based On The 4mm Cutoff Value. Preoperative Assessment With Ultrasound For Tumor Thickness Was Done And Followed By Correlation With Pathological Specimen. The Correlation Between Tumor Thickness (TT) As Measured By Ultrasound (rTT) And Histopathology (pTT) Was Evaluated Using Pearson?s Correlation Test. The Association Of Tumor Thickness, Gender, T-category And Histological Grade With The Presence Of Lymph Node Metastasis Was Analyzed Using Chi-square Test. Results There Was No Statistically Significantdifference In Age And Gender Distribution Between Both Groups (P=0.983 And P=1.000, Respectively). There Was No Statistically Significantdifference In The Frequency Of T Stage Between Both Groups (P=0.135). In The Entire Study, 10 Patients (33.3%) Showed Nodal Metastasis And 20 Patients (66.6%) Had Negative Nodes. Tumor Thickness Was The Only Significantpredictor Of Cervical Lymph Node Metastasis At P=0.020 Among Studied Variables. Pearson?s Correlation Between RTT And PTT Was Determined To Be R= 0.937, P<0.001 (95% CI 0.808-1.275) In TT < 4mm Group And R= 0.975, P<0.001 (95% CI 0.879-1.154) In TT?4mm Group.Conclusion: This Study Concludes That The Tumor Thickness Obtained From Ultrasonography, Which Is A Cheap And Readily Available Method Of Preoperative Examination, Is Significantlysimilar To The Tumor Thickness Of The Lesion Obtain After Pathological Examination, And Both Can Significantlypredict If There Is Cervical Nodal Metastasis When An Appropriate Cut Off Value Is Selected. These Findingsrecommend The Usage Of Preoperative Ultrasonography In The Preoperative Assessment Of Oral Squamous Cell Carcinoma Cases And In The Planning Algorithm And Decision To Include Prophylactic Neck Dissection Or Not.KEYWORDS: BSCC, Buccal Squamou

Ahmed Tarek Taher, Sameh Mekhemer And Mohamed Farid Shehab,

ABSTRACT
Objective: The Aim Of The Present Study Was To Evaluate The Primary Stability Of Immediate, Custom Made Titanium Root Analogue Implant. Our Secondary Outcome Was To Evaluate Marginal Bone Changes At The Day Of The Implantation, And After 6 Months.

Materials and Methods: This Randomized Clinical Trial Was Conducted On 20 Patients To Evaluate The Primary Stability And The Marginal Bone Loss Of 10 Root-analogue DLMS Titanium Implants And 10 Immediate Conventional Titanium Implants At The Time Of Implant Insertion And After 6 Months Follow?up.

Results: This Approach Could Have Some Advantages, Such As Uncomplicated Immediate Implant Placement, And Decrease In Treatment Time With Fewer Surgical Interventions, With Increased Patient Comfort. Moreover, DLMS Produce Implants With Superior Mechanical Properties By Varying The Porosity Of The Bulk And Surface Material Thus Enhancing Osseointegration.

Conclusions: The Introduction Of DLMS May Signal The Start Of A New Revolutionary Era For Implant Dentistry. This Approach Of Custom-made RAI Immediately Following Extraction Is Minimally Invasive, Respects The Underlying Anatomy, And Is Efficientwith Increased Patient Acceptance. Within The Limits Of This Study, The Fabrication Of DLMS RAI Could Form An Alternative Method For Replacing Teeth Immediately After Extraction Further Long-term Studies With A Larger Sample Of Patients To Evaluate The Benefits Of This Technique

Dina AbdelWahab, Hani ElNahass And Azza Ezz AlArab,

ABSTRACT
Background: Stability Of Soft Tissue Around Implants Is A Significantfactor In Achieving A Satisfactory Esthetic Outcome. Several Surgical And Prosthetic Approaches Have Been Suggested To Improve The Esthetics Of Implant-supported Restorations In The Esthetic Zone.

Materials and Methods: 22 Patients Requiring Single Delayed Implant Placement In The Esthetic Zone Were Randomly Assigned To Either The Placement Of A Connective Tissue Graft And Immediate Provisionalization In The Test Group Or Immediate Provisionalization Alone In The Control Group. Peri-implant Soft Tissue Esthetics Through Pink Esthetic Score (PES) Was Evaluated 6 Months After The Final Crown Deliver.

Results: Twenty-two Implants (11 Test, 11 Control) Were Placed In 22 Patients With Mean Ages Of All Subjects 44.5 ? 5.8. At The 6-month Follow-up Visit Following Finalcrown Delivery, The Control Group Yielded A Total Mean PES Score Of 12.62 ? 0.91; While The Test Group Had A Total Mean PES Score Of 12.14 ? 0.83.Conclusion: Immediate Provisionalization May Represent A Viable Option For The Replacement Of Single Missing Teeth, With Comparable Peri-implant Soft Tissue Esthetics To Those Of Soft Tissue Grafting. In Addition To Being A Less Invasive Procedure Sparing Patient Morbidity By Avoiding A Second Surgical Site.

Shereen Mohammed Ismail, Amal Rekaby Taha And Ahmed Emad Fayyad,

ABSTRACT


Aim: The Aim Of The Study Was To Evaluate The Wear Of Reinforced Acrylic Denture Teeth And Nano-filled Composite Denture Teeth.

Materials and Methods: A Split Mouth Randomized Clinical Trial Where 48 Teeth Of Each Group Were Inserted In Complete Dentures For 6 Patients. The Control Group Was Reinforced Acrylic Denture Teeth And The Intervention Group Was Nano-filledcomposite Denture Teeth. Surface Wear Was Measured Using An Optical Scanner. Surface Topographies For Each Tooth Were Analyzed Using WSxM Software At Baseline, 0, 3 And 9 Months Follow Up.

Results: For The Effect Of Time, The Highest Mean Value Was Found In Baseline Group Followed By 9 Months And 3 Months Groups, While The Least Mean Value Was Found In 6 Months Group. For The Effect Of Groups: The Highest Mean Value Was Found In The Nano-filledcomposite Denture Teeth, While The Least Mean Value Was Found In Reinforced Acrylic Denture Teeth. Conclusion: Nano-filleddenture Teeth Have Better Wear Resistance Than The Reinforced Acrylic Denture Teeth. Nano- Filled Denture Teeth Are Expected To Show Long Term Functional Efficien.

Mohannad Alaa El Din Samy, Amal Rekaby Taha And Ahmed Emad Fayyad,

ABSTRACT


Aim: The Aim Of This Study Was To Compare Between The Stresses Induced Around The Abutments Of Removable Partial Denture Retained By Conventional Extra Coronal Attachments And That Retained By Resin Bonded Zirconia Attachments In Kennedy Class I Cases. Methodology: Two Acrylic Models Representing Kennedy Class I Cases Were Fabricated With Natural Abutments Teeth (firstand Second Premolars) Bilaterally. The Control Model Abutments Were Prepared For Full Coverage Crowns. Conventional Extra Coronal Attachments Were Fabricated By Conventional Casting Of CAD/CAM Designed Wax Pattern. The Intervention Model Abutments Were Roughened Lingually And Distally And A Rest Seat Was Prepared On The Distal Side Of Each Second Premolar, The Zirconia Attachments Were Then Milled From Zirconia Blocks Using CAD/CAM Technology. Metal Framework Partial Dentures Were Then Constructed For Both Models With Nylon Caps Picked Up. A Metal Rod Was Soldered To Each Framework In The Position Of The Firstmolars, Where Universal Testing Machine Was Used To Apply Vertical Load On The Firstmolar Unilaterally And Bilaterally Meanwhile Strain Gauges Were Attached Buccally And Distally Around The Abutments On Both Sides Of The Arch And Connected To A Strain Meter To Measure The Micro Strains Exerted Around The Abutments. The Right Side Of Each Model Was Employed As The Working Side, While The Left Side Was The Non-working Side.

Results: As For The Working Side, The Results Revealed Statistically Significantdifference Between Both Groups, Where The Zirconia Attachment Exerted Almost Half The Strain Exerted By The Conventional Metal Attachment. In Addition, There Was Also Statistically Significantdifference Between Both Groups At The Non-working Side, Where The Zirconia Attachment Exerted Almost One Third That Exerted By The Conventional Metal Attachment. Moreover, As For The Central-bilateral Loading The Results Also Revealed Statistically Significantdifference Between Both Groups. The Zirconia Attachment Showed Less Strain Than That Exerted By The Conventional Metal Attachment.

Conclusions: The Zirconia Attachments Showed More Favourable Stress Distribution Around The Retaining Abutments Under All Loading Conditions Which Encourages Their Use As A Reliable Substitute To Conventional Metal Attachments.

Ahmed Hytham Abd El-Salam, Ahmed Emad Fayyad And Maha Wagdy El-Kerdawy,

ABSTRACT


Aim: The Objective Of This Study Was To Compare Between The Retention Of The Partial Denture Retained By Conventional Extra Coronal Attachments And That Retained By Resin Bonded Zirconia Attachments. Methodology: Two Acrylic Models Representing Kennedy Class I Cases Were Fabricated With Natural Abutments Teeth (firstand Second Premolars) Bilaterally. The Control Model Abutments Were Prepared For Full Coverage Crowns And Conventional Extra Coronal Attachments Were Fabricated By Conventional Casting Of CAD/CAM Designed Wax Pattern. The Intervention Model Abutments Were Roughened Lingually And Distally And A Rest Seat Was Prepared On The Distal Side Of Each Second Premolar, The Zirconia Attachments Were Then Milled From Zirconia Blocks Using CAD/CAM Technology. Metal Framework Partial Dentures Were Then Constructed For Both Models With Nylon Caps Picked Up. Universal Testing Machine Was Used To Measure The Force Needed To Separate The Partial Denture From The Patrix Of The Attachment On Each Model.

Results: In The Control Model, There Was Statistically Significantdecrease In Retention From 0 Month To 3 Months Simulation Period, And There Was Increase In Retention From 3 Months To 6 Months Simulation Period That Was Not Statistically Significant.For The Intervention Model, There Was Statistically Significantdecrease In Retention From 0 Month To 3 Months Simulation Period, And From 3 Months To 6 Months Simulation Period. Comparing The Two Groups Together, There Was Statistically Significantdifference Between Them Where The Zirconia Attachment Offered Higher Degree Of Retention In All Simulation Time Periods.

Conclusions: There Was Decrease In Retention For Both Groups From Zero To Six Months But Finallyboth Attachments Offered Acceptable Degree Of Retention. The Zirconia Attachments Provided Higher Degree Of Retention But With More Accelerated Rate Of Retention Loss.