Mirhan Mohamed Khader, Hala Kamal Abdel Gaber And Ahmed Elsayed Hamed Amr,

ABSTRACT


Aim: The Assessment Of Relationship Between Peri-implant Sulcular Fluid (PISF) Cytokines Level (IL-1? &TNF-?) And The Condition Of Peri-implant Tissue In Obese Patients (primary Objective). The Clinical And Radiographic Evaluation Of The Impact Of Obesity On Peri-implant Tissues (secondary Objective).. Subjects And Methods: Twenty Patients Were Included In The Study For Placement Of A Delayed Implant In Lower Molar Area. They Were Divided Into Two Groups, Ten Obese Patients And Ten Normal Weight Patients. TNF-? And IL-1? Were Measured Using ELISA Kits, While Bone Level Measurement Using Cone Beam CT And Clinical Parameters Were Also Assessed.

Results: Regarding Clinical Findings (bleeding Index, Plaque Index, Probing Depth) In Both Groups, In Case Of Intragroup Comparison Wilcoxon Signed Rank Test Was Used And It Revealed No Significance Difference And, In Case Of Intergroup Comparison A Mann Whitney U Test Was Used And It Also Revealed No Significant Difference. Regarding Peri-implant Crestal Bone Changes, The Percent Of Change Throughout The Study In The Obese Group Recorded A Median Of 0.4, While Non-obese Group Recorded A Median Of -0.52. Mann Whitney U Test Revealed That The Difference Between The 2 Groups Was Not Statistically Significant. Regarding Tumor Necrosis Factor, In The First And Second Assessment Independent T Test Revealed That The Difference Between Obese And Non-obese Was Not Statistically Significant. The Percent Change Of TNF-? Values Throughout The Study In The Obese Group Recorded A Median Of -22.61%, While Non-obese Group Recorded A Median Of -32.43%. Mann Whitney U Test Revealed That The Difference Between The 2 Groups Was Not Statistically Significant. Regarding Interleukin 1-?, In The First And Second Assessment Independent T Test Revealed That The Difference Between Obese And Non-obese Was Not Statistically Significant. Conclusion Within The Limitations Of Our Study We Can Conclude That: 1. Obesity Can Exert No Effect On Peri-implant Tissue Status In The Absence Of Dental Plaque. 2. Obesity Can Lead To Slight Elevation In Inflammatory Markers (TNF-? And IL-1?) In Peri-implant Sulcular Fluid Which May Be To A Subclinical Level That Have No Effect On Clinical Parameters Of Gingival Inflammation As Long As Plaque Control Is Applied.

Fawzy M, Deraz S, Farag A And Alhadainy H,

ABSTRACT
Aim. The Aim Of Present Study Was To Investigate Pulp-dentin Complex Reactions Following Direct Pulp Capping (DPC) With Mineral Trioxide Aggregate (MTA), Silver Diamine Fluoride (SDF) And Simvastatin. Materials And Methods. Thirty-two Goat Incisors Were Randomly Allocated Into Four Groups. Group ? Was Directly Capped With MTA, The Dental Pulp In Group ?? Was Directly Capped With SDF, While The Group III Capped With Simvastatin And Group IV Was Control Group Of Unprepared Teeth. All Teeth Were Restored With Glass Ionomer Filling. After 3 Months, Goats Were Sacrificed And Teeth Were Extracted Then Processed For Histological Examination And Categorized In Terms Of Hard Tissue Formation And Pulp Inflammation. Results. Teeth In Group I And III Had Statistically Favorable Outcomes In Hard Tissue Formation And Pulp Inflammation (P?0.001). Teeth In Group II Showed Significantly Lower Rates Of Hard Tissue Formation And Higher Rates Of Pulp Inflammation And Necrosis Compared To Other Groups Conclusion. For Capping Pulp Exposure, Healing With Hard Tissue Formation And No Inflammation Occurs Following MTA And Simvastatin Treatment In A Higher Rate Than SDF.

Ahmed A. Elsayyad, Nadia Abbas And Nouran AbdelNabi,

ABSTRACT
This Review Was Conducted To Evaluate 2 Prosthetic Designs: �All On Three� And �All On Four� For The Restoration Of Edentulous Mandibles. �All On Three� Simplifies The Treatment Plan, Reduces Surgical Procedures And Cost When Compared To The �All On Four�. Further Clinical Trials Are Required To Investigate Whether The �All On Three� Is Comparable To The �All On Four�.

Hossam Atef Abd El-Samad And Cherif A. Mohsen,

ABSTRACT

Objectives: This Study Was Carried Out To Evaluate The Dimensional Accuracy Of Conventional Bite Registration Material And CAD/CAM Bite Registration Material In Patients With A Single Missing Tooth. Methods: Twenty Patients With One Missing Tooth (who Needed A Fixed Partial Denture) Were Selected And Included In The Present Study. A Full Veneered Preparation Was Done. The Patient Bit On Bite Registration Material In Centric And Eccentric Movement. A Wire �3 Cm In Length �was Bonded With Composite On Opposing Tooth To The Preparation. The Length Of Wire Impression On Bite Registration Material Was Measured And After 24 Hours To Evaluate The Possible Effect With Time Factor.

Results: The Effect Of Duration On The Dimensional Accuracy Of Bite Registration Materials At Vertical Centric And Eccentric Occlusion Was Statistical Significant Between Immediate And Later Who Recorded Higher Values With Both Types Of Bite Registration Materials Tested. Also A Statistical Significant Differences Between The Two Types Of Occlusion Irrespective To The Duration, Type Of Restorations And Types Bite Registration Materials, As Eccentric Occlusion Recorded Higher Values.

Conclusions: Futar D And Futar Scan Bite Registration Materials Provided Accurate Records With No Differences Between Them. Dimensional Accuracy Was Influenced By Time Factor Of The Recording Materials.

Noran Mohammad Mostafa Elsharkawi, Hisham Katamish And Tarek Salah Morsi,

ABSTRACT


Purpose: To Evaluate The Micro-tensile Bond Strength Of The New Activa Bioactive Cement With E-max And Cerasmart In Comparison To The Conventional Resin Cement Before And After Thermocycling. Methodology: Two Plates Were Cut From Each Ceramic Block Material (3 Mm Thickness) Using Isomet Saw: (LDS E.max), And (hybrid Cerasmart). Surface Treatment Of The Ceramic Specimens Was Done According To The Manufacturer�s Instructions. Application Of Resin And Bioactive Cements To Each Ceramic Block Was Done And Then Cured. Bonded Specimens Were Sectioned Into Micro-bars To Obtain 80 Samples, 40 Samples For Each Ceramic Block (group I & Group II). Each Group Was Subdivided Into Two Subgroups According To Cement Type (subgroup1 & Subgroup 2). Each Subgroup Was Further Subdivided Into Two Divisions 10 Samples Each For The Thermocycling (division A & Division B). Thermocycling Was Done In Water For 5000 Cycles Between 5 And 55 �C. All Samples Were Subjected To Micro-Tensile Bond Strength (�TBS) Test Using Universal Testing Machine. Data Were Analyzed Using Three-way ANOVA To Study The Effect Of Ceramic, Cement, Thermocycling And Their Interaction On Mean Micro �TBS (P ? 0.05).

Results: Regarding The Effect Of Ceramic Type, Either With Activa Or Resin Cements, Before Or After Thermocycling; Cerasmart Had Statistically Significantly Higher Values Of Mean ?TBS Than E.max. Regarding The Effect Of Cement Type; After Thermocycling, Either With Cerasmart Or E.max; There Was No Statistically Significant Difference Between The ?TBS Values Of The Two Cements. Regarding The Effect Of Thermocycling, Results Showed That Thermocycling Significantly Decreased The Mean ?TBS Of Both Ceramic Materials When Using Either Activa Or RelyX Ultimate Resin Cements.

Conclusions: Within The Limitations Of This Study, It Was Concluded That For Both Tested Cements, Thermocycling Affected Negatively The Micro-tensile Bond Strength (?TBS).

Osama S. Gad El-Hak And Nagwa M. Khattab,

ABSTRACT
Objective: The Current Study Evaluates The Reciprocal WaveOne Gold Single-file System Regarding Clinical And Radiographic Success Rates In Pulpectomy Of Primary Molars. Methods. This Double Blind Randomized Clinical Trial Was Carried Out On 70 Primary Molars On 60 Children In The Age Group From 4 To 7 Years. The Teeth Selected For This Study Were Randomly Assigned Into 2 Groups According To The Used Endodontic Preparation System. Group I: 35 Primary Molars Were Instrumented With WaveOne Gold Reciprocating Single-file System. Group II: 35 Primary Molars Were Instrumented With Stainless Steel K-files. All Teeth Were Evaluated Clinically And Radigraphically For 12 Months With Periodic Recall At 3, 6, 12 Months. Results. WaveOne Gold Single-file System Exhibited Higher Overall Success Rate Over Manual Instrumentation, However, The Difference Between Groups Was Not Statistically Significant (P >0.05). Conclusion. Single-file Systems Are Promising Instruments That Have The Power To Be An Alternative For Manual Instrumentation In Primary Molar Pulpectomies.

Yasmine El Makawi And Nagwa Khattab,

ABSTRACT


Purpose: The Aim Of This Study Was To Evaluate The Effect Of Lithium Disilicate Endocrowns Compared To Prefabricated Zirconia Crown Used For Restoring Pulpotomized Primary Molars, On Their Fracture Resistance And To Compare The Loads To Failure These Different Ceramic Restorations With Previously Reported Posterior Occlusal Forces.

Materials and Methods: Twenty Mandibular Left Second Primary Molars Were Randomly Distributed Into Two Groups (n = 10 In Each Group) The Zirconia Crown (Nusmile Zr.) Group (G1) And The Lithium Disilicate (IPS E.max Press) Endocrown Group (G2). In All Groups Pulpotomy Procedure Was Done Before Preparation Then Each Sample Were Prepared Based On Their Allocated Restoration, Both Zirconia Crown (Nusmile Zr.) And Endocrown (IPS E.max Press) Were Cemented By Dual-cure Resin Cement. All Samples Were Loaded To Failure By Means Of A Universal Testing Machine (Instron, USA), And Compressive Force Was Applied. The Data Were Analyzed Using One-way (ANOVA) And Tukey�s Post Hoc Significance Difference Tests. Differences Were Considered Significant At (p< 0.05).

Results: Group Zirconia Crown (G1) Showed Significantly Higher Fracture Strength Than Group (G2) Lithium Disilicate Endocrown (p < 0.05). Conclusion: The Zirconia Crown Showed Higher Fracture Resistance Than Lithium Disilicate Endocrown. However, Both Tested Zirconia Crown And Lithium Disilicate Endocrown Withstood The Application Of Axial Occlusal Forces Greater Than The Reference Values For Posterior Occlusal Loads.

Aya Mohamed Adly , Shereen Hafez Ibrahim And Amira Farid El-Zoghby,

ABSTRACT

Objectives: To Compare The Reliability Of A Light Induced Fluorescence Intraoral Camera Versus Those Of The Visual-tactile Assessment Method According To FDI Criteria In Clinical Evaluation Of The Margins Of Resin Composite Restorations.

Materials and Methods: A Total Of 29 Volunteer Patients Having At Least One Or Two (anterior/posterior) Resin Composite Restorations Were Assigned In The Study With Total 40 Restorations Where Each Restoration�s Margins Was Examined By Three Calibrated Examiners With Different Levels Of Experience Using Two Diagnostic Methods, Visual-tactile Assessment Method (FDI Criteria) (D1) And Light Induced Fluorescence Intraoral Camera (D2). The Assessed Restorations Were Categorized According To Its Location As Anterior Or Posterior Restorations And Each Of Which Were Categorized As Recently Placed (less Than 1 Month) Or Old (more Than 1 Year). Each Diagnostic Method Was Repeated Three Times, Immediate, After 20 Minutes And After One Week Interval To Calculate Intra-examiner Repeatability And Inter-examiner Reproducibility Using Fleiss� Kappa Statistics.

Results: Regarding Intra-examiner Repeatability, Fleiss� Kappa Results Between Different Readings Of Each Examiner In Visual-tactile Method Using FDI Criteria Ranged Between (0.8968 � 0.9886), While For Light Induced Fluorescence Intraoral Camera, It Ranged Between (0.9344 � 1.000). Regarding Inter-examiner Reproducibility, Fleiss� Kappa Results Between The Three Examiners In Visual-tactile Method Using FDI Criteria Ranged Between (0.8032 � 0.9253), While For Light Induced Fluorescence Camera, It Was (1.000). Conclusion: Both Light-induced Fluorescence Camera And Visual-tactile Assessment Method According To FDI Criteria Are Reliable Methods Having Comparable Perfect Agreement Regarding Intra-examiner Repeatability And Inter-examiner Reproducibility In Clinical Evaluation Of Margins Of Resin Composite Restorations.

Donia M. El-Shafey, Mona Fadel Mohamed, Maha El-Baz And Mohamed Adel Ezzat,

ABSTRACT

Objectives: The Aim Of This Clinical Study Was To Evaluate The Marginal Integrity Of Hydroxyapatite Nanofiber Reinforced Flowable Composite (NovaPro� Flow) Compared To A Conventional Resin-based Flowable Composite (Filtek� Z350 XT) During Management Of Initial Carious Lesion In Adult Population Over A One Year Period.

Materials and Methods: A Total Of 26 Volunteer Patients Who Fulfilled The Inclusion Criteria Were Selected To Participate In The Study, With Non-cavitated Initial Occlusal Carious Lesion Were Selected For This Randomized Split-mouth Clinical Trial. A Total Of 52 Sealants Were Placed, In Which Each Patient Had The Two Types Of Flowable Composite; NovaPro� Flow (R1) Was Placed In One Side While Filtek� Z350 XT (R2) Was Placed On The Contralateral Side. Each Sealant Was Independently Evaluated In Terms Of Marginal Integrity After One Week, And Twelve Months Using FDI Criteria With FDI Prob.

Results: After One Week, Both Sealants (R1) And (R2) Had A Score Of (1) (100%). Any Other Score (2, 3, 4, Or 5) Wasn`t Detected At The First Follow Up Interval (0%). After One Year, Score (1) Decreased To (73.1%) In (R1) While (R2) Decreased To (57.7%), Both Sealants Showed Equal Percentage Of Score (2) (19.2%) While Score (3) Was Higher In (R2) (11.5%) Than (R1) (7.7%), And Score (5) Was Only Detected In (R2) (11.5%), But There Was No Significant Difference In The FDI Grading In Both Sealants During Both Follow-up Intervals (P>0.05). Conclusion: Although The Clinical Performance Of Hydroxyapatite Nanofiber Reinforced Flowable Resin Composite Was Better For Marginal Integrity Compared To The Conventional Nanofill Flowable Resin Composite After One Year Of Follow Up, This Difference Was Not Statistically Significant.

Omar Aboel Abbas; Norhan El Dokky And Hany Saber,

ABSTRACT


Aim: To Evaluate Intraoperative Pain Experienced During Pulpal Treatment Of Mandibular Primary Second Molars After Buccal Infiltration With Articaine 4% In Comparison With Inferior Alveolar Nerve Block Using The Same Anesthetic Solution. Subjects And Methods: The Study Consisted Of 22 Patients In The Age Group Of 6-7 Years Old Suffering From Bilaterally Deep Carious Mandibular Primary Second Molars Who Attended The Diagnostic Center Of The Pediatric Dentistry And Dental Public Health Department Faculty Of Dentistry, Cairo University. Medical, Clinical And Radiographic Assessment Were Performed To Confirm The Restorability Of The Mandibular Primary Second Molars. In This Split Mouth Randomized Control Trial Each Participant Was Asked To Pick An Opaque And Sealed Envelope From Two Separate Black And Opaque Boxes To Randomly Choose The Operated Technique And Side On The First Operating Vist. The Other Technique Will Be Implemented On The Other Side On The Upcoming Visit. Caries Removal And Pulpal Treatment Were Videotaped With Both Local Anesthetic Techniques. Videos Were Then Assessed By An Assessor Who Was Completely Blinded From The Technique Of Injection To Fill In A Printed (SEM) Pain Scale Sheet For Each Technique With Each Participant.

Results: 10 Male And 12 Female Subjects Representing 45.5% And 54.5% Respectively Were Included In The Study. 90%, 76% And 52% Of The Participants Were Comfortable With The Inferior Alveolar Nerve Block Technique During Treating The Carious Teeth Regarding The Sound, Eye And Motor Parameters Respectively. While 67%, 48% And 38% Of The Participants Were Comfortable With The Buccal Infiltration Technique During Treating The Carious Teeth Regarding The Sound, Eye And Motor Parameters Respectively. Upon Comparing The Results Of Both Techniques It Was Evident That The Difference Between Both Techniques Were Statistically Insignificant. Conclusion: Buccal Infiltration Technique In 6-7 Years Old Participants Can Be Nearly Effective As The Inferior Alveolar Nerve Block Technique For Anesthetizing Lower Second Primary Molars Undergoing Pulpotomies.