Abd Elwakeel Mohamed Abd Elrahman, Adel Hamdy Abo ElFetouh And Mohamed Mounir Ahmed Shaker,

ABSTRACT


Aim: Is To Assess The Horizontal Bone Gain Following Utilization Of Patient Specifictitanium Sheet In Patients With Horizontal Deficiency In The Anterior MaxillaPatients And Methods: The Study Represents A Case Series Of Eight Patients Having Horizontally Deficientedentulous Anterior Maxilla. 18 Implants Were Inserted Within The Current Study. The Selected Patients Were Submitted To A Virtual Preplanned Reconstruction Of The Deficientridges By Incorporating An Equivalent Mixture Of Autogenous Cancellous Particulates And Xenogeneic Bone Loaded In A Solid Concealing CAD CAM Fixatingtitanium Device, Prior To The Installment Of Root-form Dental Implants. A Radiographic Comparison Between The Preoperative CBCT And The 6 Months Postoperative CBCT Took Place. The Study Has Been Permitted By The Ethics And Research Committee Of The Faculty Of Dentistry, Cairo University.

Results: There Was A Statistically Significantdifference Among Mean Horizontal Bone Changes At Different Time Intervals. The Mean Ridge Gain Measured Immediately Post-operative Was Significantlyhighest, Followed By That Observed From Baseline To 4 Months Post-operative, Then From Baseline To 6 Months Post-operative. While, The Significantlyhighest Mean Ridge Reduction Was Detected From Immediate Post-operative To 6 Months Post-operative, Followed By That Measured From Immediate Post-operative To 4 Months Post-operative And From 4 Months To 6 Months Post-operative, Which Did Not Differ Significantl. Conclusion: Horizontal Bone Augmentation At The Anterior Maxilla Using Patient Specificsolid-occlusive Non-perforated Titanium Sheets Could Be Considered A Reliable, Effective, Less Time-consuming Technique With Better Ridge Contour., Endosteal Blood Supply Is Considered To Be A Very Important Factor For Graft Consolidation With Complete Blockage Of The Periosteal Blood Supply. Non-perfroated Sheets Allowed For More Graft Protection And Reliable Bone Quality.

Shaimaa Nasr El-Din , Magdy M Ali And Reham Hassan,

ABSTRACT


Aim: This Study Aimed To Evaluate The Effect Of The XP-Endo Finisher (XPF), Passive Ultrasonic Irrigation (PUI) And Conventional Irrigation Using Side-vented Needle (SVN) On Post-operative Pain After The Removal Of Calcium Hydroxide Ca(OH)2 And Double Antibiotic Paste (DAP) From Necrotic Mandibular Single Rooted Teeth. Method And Materials: Seventy-two Patients Were Included. After Confirmingthe Diagnosis Clinically And Radiographically In The Firstvisit, Standard Endodontic Treatment Was Performed Using ProTaper Next NiTi Files(Dentsply Maillefer, Ballaigues, Switzerland) Up To X4. Depending On The Type Of Intracanal Medication Used Ca(OH)2 And DAP, Patients Were Assigned Randomly Into 2 Groups (n=36). After One Week, Patients In Each Group Were Randomly Assigned Into 3 Sub-groups (n=12) According To The Method Used For Medicament Removal: XPF, PUI And SVN. Pain Was Assessed Postoperatively After 4, 12, 24, 48, 72 And 96 Hours After The Second Visit Using Modifiedvisual Analogue Scale (VAS). In The Third Visit, Teeth Were Obturated By Lateral Compaction Technique And Resin Sealer. Data Were Statistically Analyzed Using Kruskal Wallis Test Followed By Multiple Mann Whitney U Test With Bonferroni Correction. Intragroup Comparisons Were Done Using Freidman?s Test Followed By Dunn?s Post Hoc Test.

Results: Regarding The Technique Used For Removal Of Intracanal Medication, In Both Groups SVN Showed The Highest Significantpain Score Followed By PUI While XPF Showed The Lowest Mean Value At 4,12,24 And 48 Hours. While, No Significantdifference Obtained Between Them At 72 And 96 Hours. In All Groups, Pain Intensity Was Significantlyhigh At 12 Hours Then Reduced Gradually As The Time Increased.

Conclusions: The Use Of XPF And PUI During The Removal Of Intracanal Medication Results In Less Postoperative Pain.

Omar Mahmoud Youssef Abdel Gawad, Nouran Abd Al Naby And Mahmoud EL Far,

ABSTRACT


Aim: The Current Study Aimed To Compare Patient Satisfaction And Retention Of Upper Complete Denture With Denture Base Fabricated Using Rapid Prototyping Method Versus The Conventional Method.

Materials and Methods: Sixteen Completely Edentulous Patients Were Randomly Allocated In One Of Two Groups; The Conventionally Fabricated Complete Denture Bases And The Rapid Prototyping Denture Bases? Group. Patient Satisfaction Was Assessed By Using A Validated Patient Questionnaire One Month After Delivery Of Prosthesis And Three Months Later. The Retention Was Measured By Retention Force Gauge Device At Baseline (immediately At The Day Of Delivery Of Prosthesis) And Then Three Months Later.

Results: The Rapid Prototyping Group Has Shown A Statistically Significantdifference In The Mean Score -lower- Of The Overall Patient Satisfaction One Month After Delivery And Three Months Later Than The Conventional Group. The Lower Mean Score Indicated More Patient Satisfaction. There Was No Statistically Significantdifference In Denture Retention Score Between The Rapid Prototyped Than The Conventional Group. Conclusion: The Overall Patient Satisfaction Has Improved With Rapid Prototyping Denture Bases Than The Conventional Ones. Whereas, Complete Denture Retention Was Not Significantlyaffected By The Method Of Denture Base Construction.

Ahmed Nabil Abdel Sadek El Sebai, Alaa Diab And Geraldine M Ahmed,

ABSTRACT


Introduction: This Study Aimed To Evaluate The Effect Of 2 Different Continuous Rotation Nickel-titanium (NiTi) Rotary Systems On Apical Transportation (AT), Transportation Direction (TD), And Volumetric Change (VC) Of Severely Curved Mesio-buccal (MB) Root Canals Of Mandibular Molars Via Cone-beam Computed Tomographic (CBCT) Imaging. Methods: 60 MB Root Canals Of Mandibular Molars With A Curvature Of 25??35? Schneider?s Angle Were Assigned Randomly To 2 Groups Of 30 Canals Each According To The Instrument Used: Group A [ProTaper Next (PTN)] And Group B [ProTaper Universal (PTU)]. All Root Canals Were Shaped To An Apical Size Of 30 Using PTN Or PTU Systems: PTN X3 (#30/.07) Or PTU F3 (#30/.09?.05), Respectively. Canals Were Scanned After Instrumentation Using CBCT Scanner To Evaluate AT And TD At Cervical, Middle, And Apical Third Cross Sectional Levels, And VC For The Whole Canal.

Results: Regarding AT, There Was No Significan Difference Among The Groups (P > 0.05) In Cervical And Apical Thirds Of The MB Canal; However, In The Middle Third Of The MB Canal, PTN Showed A Significantl Lower Transportation Mean Value Than PTU (P < 0.05). PTN Showed A Significantl Lower Mean Volume Of Removed Dentin Than PTU (P < 0.05) And There Was No Statistically Significan Difference Between PTN And PTU At The Three Studied Levels (P > 0.05) Regarding TD.

Conclusions: PTN System Caused Less Canal Transportation And Preserved More Radicular Dentin Than The PTU System When Used In The Preparation Of A Severely Curved Root Canals.

Fatma Abd Elrazik Ahmed Elhdad, Attiah Aly El-Gendy, Nahed Ahmed Kashef And Ebtessam Abd El Khalek El Zefzaf ,

ABSTRACT


Purpose: To Evaluate Short Implants With Different Attachments For Assisting Partial Overdenture For Mandibular Kennedy Class I Cases.

Materials and Methods: 14 Partially Edentulous Patients Were Selected With Mandibular Bilateral Free End Saddle Having The Firs Premolars As The Main Abutments. Two Short Dental Implants Were Inserted At The Firs Molar Areas And Mandibular Implant Assisted Partial Overdenture Was Fabricated. Patients Divided In Two Groups 7 In Each. Group A: Partial Overdenture Was Retained By Ball And Socket Attachment To The Implants. Group B: Overdenture Retained By Locator. Clinical Evaluations Included: Gingival Index, Probing Depth And Implant/tooth Stability By Periotest, Radiographic Evaluation Was Done For Alveolar Bone Loss Around Implants And Abutments At Time Of Denture Insertion, 6 Months, 12 Months And 18 Months. At The End Of The Study The Data Were Collected, Tabulated And Statistically Analyzed.

Results: There Was No Statistically Significanc Difference Between The Groups As Regards To Clinical Evaluations Of Gingival Index, Probing Depth And Implant/tooth Stability. However, Radiographic Evaluation By Digital Periapical And Panoramic Radiograph Showed Statistically Significan Difference Between Two Groups Regarding The Marginal Bone Loss Around Implant, Abutment Teeth.Conclusion. The Group Of The Implant Assisted Partial Overdenture Restored With The Locator Attachment Showed Better Effect On Bone Health Around The Placed Dental Implant And The Main Natural Abutment When Compared With The Other Group Of The Implant Assisted Partial Overdenture With Ball & Socket Attachment.

Halla Gamal Esmail, Azza Ezz Elarab And Weam Ahmed Elbattawy,

ABSTRACT


Aim: The Aim Of The Study Is To Evaluate Post-operative Morbidity And Root Coverage Outcomes In Patients Subjected To Abrasive DFGG For The Treatment Of Gingival Recession.Methodology: Ten Sites In 7 Patients Showing Miller I / II Gingival Recession Were Selected And Treated By Coronally Advanced Flap(CAF) Combined With Abrasive DFGG. All The Selected Patients Were Assessed For Postoperative Morbidity And Root Coverage Outcomes.

Results: Statistical Analysis Demonstrated That There Was A Statistically Significantdecrease In Recession Depth (RD) And Recession Width (RW) After 3 And 6 Months. An Increase In Keratinized Tissue Width (KTW) And Gingival Thickness Were Detected After 3 And 6 Months Compared To Baseline. Pain Scores Were Statistically Significantlydecrease From Day 0 To Day 7. Complete Root Coverage (CRC) Was Obtained In 10% Of The Sites.

Conclusions: CAF Combined With Abrasive DFGG Was Effective In Treating Miller Class I And II Gingival Recession Where Most Of The Assessed Clinical Parameters Demonstrated A Statistically Significantimprovement After 6 Months. The Abrasive DFGG Technique Is An Easy And Simple Technique That Requires Less Effort And Training, And Is More Flexible As A Procedure.

Poosy Hany Zaki Mohamed, Mohammed Khashaba And Mohamed Atef,

ABSTRACT
The Loss Of A Tooth Triggers A Remodeling Reaction As Part Of The Healing Process, Involving Various Degrees Of Alveolar Bone Resorption, Especially Affecting The Buccal Lamella. The Bundle Bone Is Primarily Vascularized By The Periodontal Membrane Of The Tooth. Therefore, This Part Of The Alveolar Bone Is Compromised By The Extraction, To Such An Extent That The Buccal Lamella Is Insufficientlynourished, Leading To Its Total Or Partial Resorption.,A Substantial 0.5% To 1% Of The Alveolar Ridge Volume Is Lost As The Result Of It. The Socket-shield (SS) Technique Provides A Promising Treatment Adjunct To Better Manage These Risks And Preserve The Post-extraction Tissues In Aesthetically Challenging Cases. This Technique Was Firstdescribed In 2010 Which Aims At Leaving The Buccal Fragment Of Root Intact And Placing Implant On The Lingual Aspect Of That Fragment So That The Tissues Which Remain In Contact With The Buccal Fragment Retain Their Vitality And Prevent The Ridge From Collapsing Thus Improving The Aesthetics Especially During Implant In The Anterior Maxillary Region. The Tooth Root Fragment?s Periodontal Attachment Apparatus (periodontal Ligament, Attachment Fibers,vascularization, Root Cementum, Bundle Bone, Alveolar Bone) Is Intended To Remain Vital And Undamaged So As To Prevent The Expected Post-extraction Socket Remodeling And To Support The Buccal Tissuesand Esthetics Especialy The Pink One Which Supports The White Esthetics.

Aim: The Aim Of The Study Was To Compare Clinical And Radiographic Assessment Of Grafted Esthetic Zone Socket Shield Technique Vs. Graftless Esthetic Zone Socket Shield, With Immediate Implant Placement & Immediate Temporization.Methodology: A Total Of 30 Patients Who Were Randomly Selected From The Outpatient Clinic Of The Oral And Maxillofacial Department. The Patients Were Randomly Divided Into Two Groups Each Group Contains Fifteenpatients Using Sealed Envelopes That Was Drawn On The Day Of Surgrey, The Study Group Recieved Socket Sheild Technique With Grafting The Jumping Gap With Xeno Graft Particulate With Immediate Temporization And The Control Group Recieved Socket Sheild Technique Without Grafting The Jumping Gap With Immediate Temporization. The Outcome Measure Was :PES, After 6 Months.

Results:.The Median And Range Of The Pink Esthetic Score Of The Control Group Was 10 (8-12) Immediately And Increased To 12 (9-13) After 6 Months, While The Median And Range Of The Pink Esthetic Score For The Study Group Was 10 (8-12) Immediately And Increased 13 (11-14) After 6 MonthsConclusion Grafting The Jumping Gap While Using The Socket Shield Technique Have Quite The Same Result In Relation To Pink Esthetic Score Due To The Presence Of The Shield Itself Which Clarifiesthe Result In Both Groups Regarding The Soft Tissue Reaction.

Ahmed Mohamed Hamed Khalaf*, Ahmed Emad Fayyad** And Maha Wagdy Elkerdawy***,

ABSTRACT


Aim: The Aim Of This In-vitro Study Was To Evaluate The Fracture Pattern And Strength Of Temporary Fixed Dentures Made FromAcetal On Four Mandibular Implants Compared To PMMA.Methodology: The Present Study Was Conducted On 6 Temporary Fixeddentures Made From Same Design On CAD Software By Milling From Acetal And PMMA Blocks; 3 From Each Group. These Fixeddentures Were Cemented On The Same Mandibular Model Containing 4 Implants Alternatively. Each Fixedrestoration Was Tested By Applying Load From A Universal Testing Machine Using A T Shaped Load Applicator At Cross-head Speed Of 5mm/min. The Load At Failure Manifested By An Audible Crack And Confirmedby Sharp Drop At Load-deflectioncurve Recorded Using The Computer Software. The Load Required To Fracture Was Recorded In Newton. All These Parameters Were Subjected To Statistical Analysis.

Results: The Highest Mean Value Was Found In (Acetal) (5366.67 ? 10.69)N, The Lowest Mean Value Was Found In (PMMA) (1128.00?13.89)N With A Statistical Significantdifference Between The 2 Groups. Also The Fracture Pattern In The PMMA Group Was More Extensive.

Conclusions: Acetal Showed To Be Stronger And Withstood Higher Stress Than The PMMA When Used At The Cantilevered Part Of The Prosthesis With More Favorable Pattern Of Failure.

Omayma Safwat, Eman Abou Ouf And Amgad EL-Sheikh,

ABSTRACT

Objectives: This Study Was Carried Out To Evaluate The Color Change, Surface Roughness, And Stain Resistance Of Artificialdemineralized Subsurface Enamel Lesion Treated By Infiltrativeresin For Three Different Time Intervals (immediate, Two Weeks And One Month). Methods: Thirty Freshly Extracted Human Anterior Teeth Were Selected To Be The Study Specimens. They Were Divided Into Three Groups, Each Of Ten Teeth. Group A1 Referred To Immediate Application Of Infiltrativeresin, Group A2 Referred To Delayed Two Weeks Application Of And Finallygroup A3 Referred To Delayed One Month Application. Assessment Of All Teeth For Enamel Color And Surface Roughness Were Done Using A Stereomicroscope For Image Analysis, Before Lesion Induction (base Line), After Lesion Induction And After Infiltrationprocedures, And Finallyafter Staining Solution Immersion For Three Different Time Durations. Prepared Demineralizing Solution Was Used To Induce Artificialdeminerialized Enamel Sub Surface Lesions. Coffee Was Selected To Be Used As A Staining Solution.

Results: A1 And A2 Showed A Significantcolor Change Compared To A3 In Color Change Measurement And Stain Resistance Evaluation While The Surface Roughness For All Groups Showed A Significant Improvement For All Interval Of TimeConclusion: Immediate Application Of Infiltrativ Resin Could Provide Better Esthetic Masking Effect Than Delayed Application While Provide A Promising Approach To Decrease The Surface Roughness Of The White Spot Lesions, Regardless Of The Timing Of Application; Whether Immediate Or Delayed Application And Showed Acceptable Stain Resistance When Exposed To An Extrinsic Staining Agent.

Maha Maged Abo Shady, Faten Ahmed Aboutaleb And Eman Abd El-Salam Shakal,

ABSTRACT


Purpose: To Evaluate Short And Long Span Polyether-ether-ketone Removable Partial Denture (PEEK RPD) Fabricated By Computer-aided Design/computer-aided Manufacturing (CAD/CAM) Technique.

Materials and Methods: Twenty Maxillary Unilateral Distal Extension Partially Edentulous Patients (class II Kennedy Classification)opposing Almost Natural Dentition Were Selected And Divided According To Length Of The Edentulous Span Into Two Groups (A, B), Ten Patients Each. Group A, Patients With Canine As The Last Abutment Tooth. Group B, Patients With Second Premolar As The Last Abutment Tooth. All Patients Received Maxillary PEEK RPD Fabricated By CAD/CAM Milling Technique And The Abutment Tooth Near The Edentulous Area Was Then Evaluated Clinically Using Periodontal Pocket Depth Score (PPD) And Radiographically Using Digital Cone Beam Computed Tomography (CBCT) Radiograph To Evaluate Alveolar Bone Loss Of The Abutment Tooth At Time Of Denture Insertion, 6, 12 And 18 Follow Up Periods.

Results: In This Study, The PPD Score For Group A And B Showed No Increase From Initial Assessment To The 18 Follow Up Period With No Significantdifference (P-value> 0.05) And With No Significantdifference When Group A Was Compared With Group B At Different Follow Up Periods. The Mean Of The Abutment Alveolar Bone Loss For Each Group Was Increased From Time Of Denture Insertion To The 18 Months Follow Up Period With A Highly Significantdifference (P=0.000, P-value< 0.001) But With No Significantdifference When Comparing Group A And B At The Different Follow Up Period (P-value> 0.05). Conclusion: Wearing Of PEEK RPD, Digitally Designed And Fabricated By Milling Technique, Creates A Favourable Oral Environment With No Periodontal Tissue Damage And The Marginal Bone Loss Around Abutment Teeth Of Both Groups Were Within The Clinically Acceptable Limit.