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

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 EI Makawi And Nagwa Khattab,

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 (Gl) 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-c 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 Arnira Farid El-Zoghby,

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) (D.) 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 EI-Baz And Mohamed Adel Ezzat,

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 Flow Able Composite; N OVaPro? Flow (Rl) 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 FDIprob.

Results: After One Week, Both Sealants (Rl) 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 (Rl) 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 (Rl) (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>O.05). Conclusion: Although The Clinical Performance Of Hydroxyapatite Nanofiber Reinforced Flow Able Resin Composite Was Better For Marginal Integrity Compared To The Conventional Nanofill Flow Able Resin Composite After One Year Of Follow Up, This Difference Was Not Statistically Significant.

Omar Aboel Abbas; Norhan EI Dokky And Hany Saber ,

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. ?

Dina M. EI Gedawi, Mostafa E. Gheith And Abdelrahman Mh,

Objective: The Aim Of This Study Was To Evaluate Morphology, Surface Roughness And Mechanical Properties Of Glass Fiber Posts (GFPs) After Different Surface Treatment Protocols.

Materials and Methods: A Total Of Forty GFPs With Maximum Diameter Were Be Divided Into Four Groups (n= Lfl): GC- No Surface Treatment (control), GSB- Sandblasted, GHF- Hydrofluoric Acid Etched, GE- Er:YAG Laser Irradiated. The GFPs Surface Morphology Was Evaluated Through Scanning Electron Microscope (SEM), Surface Roughness Was Measured Using Surface Profilometer And The 3-points Bending Flexural Test Measured Flexural Strength And Elastic Modulus.

Results: SEM Showed Alternation Of Post Surfaces After All Surface Treatments. Analysis Of Surface Roughness Demonstrated Significant Difference Between The Tested Groups At P:50 .00 1. GSB (5.5?0.6) Showed The Highest Roughness Followed By GHF (3.9?O.3), GE (3.2?O.2), Then GC (2.1?0.4). The 3 Points Bending Test Results Were Calculated And Recorded Insignificant Difference Between The Tested Groups At P=O.481 For Maximum Flexure Load (N) As For The Flexure Stress At The Maximum Flexure Load (MPa) It Was Shown Significant Difference Between The Tested Groups At P=0.009. GSB (697.1?96.9N) Showed The Highest Flexure Stress (MPa) Compared To GE (548?112.7N) And GHF (572.9?102.6N). Modulus Of Elasticity (GPa) Showed Significant Difference Between The Tested Groups At P=O.003. GSB (28.9?2.9 MPa) Showed The Highest Modulus Of Elasticity (GPa) Compared To GE (23?4.6 MPa) And GHF (23.6?4 MPa). GC Showed Insignificant Difference With All Tested Treatments. Conclusion: The Different Surface Treatments Used In This Study Showed Alternations Of GFPs Surfaces. They Had No Influence On The Mechanical Properties Of GFPs.

Ahmed Mohamed Ali, Siza Yacoub Zakhary And Suzan Abdul Wanis Amin,

Objectives: To Systematically Review And Provide A Pooled Effect Estimate For The Clinical Effects Of Calcium Hydroxide Intracanal Medication In Non-vital Mature Teeth. Data Sources: Electronic? Databases Searching, For Published And Grey Literature, And Manual Searching Were Conducted. Study EUgibility Criteria: Only Randomized Clinical Trials Were Included That Compared Calcium Hydroxide To Other Intracanal Medications In Non-vital Immature Teeth.Study Appraisal & Synthesis Methods: The Risk Of Bias Was Assessed Using The RoB 2.0 Cochrane Tool. The Main Outcomes Were Clinical Healing And Analgesic Intake. Risk Ratio Was Calculated For Dichotomous Data With Their 95% Confidence Intervals.

Results: Five Articles Reported In 4 Studies (N=285) Were Included In This Systematic Review. Calcium Hydroxide Was Compared To 6 Other Intracanal Medications. Calcium Hydroxide Had Similar Clinical Healing Effectiveness As Calcium Hydroxide Mixed With Iodoform And Povidine Iodine Paper Points (p-value >0.05) And Similar Effects On Analgesic Intake As Calcium Hydroxide Mixed With Chlorhexidine (P-value >0.05).Conclusion: Calcium Hydroxide Intracanal Medication Alone May Have Similar Clinical Effectiveness Compared To Calcium Hydroxide Mixed With Iodoform And Similar Effects On Analgesic Intake As Calcium Hydroxide Mixed With Chlorhexidine.

Neven Ahmed, Amira Farid Elzoghbi And Rasha Raafat Hassan,

Aim: This Study Was Conducted To Evaluate The Role Of Aloe Vera Toothpaste Compared To Fluoride Toothpaste In Changing High To Low Salivary Bacterial Count.

Materials and Methods: Participants Were Divided Into Two Main Groups, ,Group AI: With Fluoride Toothpaste (Signal Cavity Fighter) And Group A2: With Aloe Vera Herbal Toothpaste (AloeDent Triple Action). The Study Took Place Over A Period Of 30 Days .Saliva Collection (to Assess The Bacterial Count) Was Performed At Baseline, After15 Days, And After 30 Days. The Saliva Samples Were Cultured In Plates Contained Mitis Salivarius Bacitracin Agar Selective For Streptococcus Mutans For Determining Streptococcus Mutans Count And Kept At 3rC For 48 Hours In An Incubator. The Bacterial Colonies On The Plates Were Expressed As Number Of Colony Forming Units Per Milliliter (CFU/ml) Of Saliva.

Results: The Results Revealed That, In Aloe Vera Group, The Mean Bacterial Count Was The Highest At Baseline, Significantly Decreased After15 Days, Then Becomes Nearly Constant, With No Significant Difference Between The Mean Values After 15 Days And After 30 Days. In Fluoride Group, The Mean Bacterial Count Was Highest At Baseline, And Then Significantly Decreased Gradually After15 Days And After 30 Days.Conclusion: Both Fluoride And Aloe Vera Are Efficient In Decreasing The Streptococcus Mutans Count In Saliva. Aloe Vera Can Be Used As An Alternative For Fluoride Toothpaste

Samar Seif EI Nasr Mohamed, Enas Anter Abd EI Ghafar And Nashwa Salah Mohamed,

Background: This Study Aimed To Evaluate The Frequency Of Root Fenestration And Dehiscence In A Sample Of Adult Egyptian Population Using CBCT.

Materials and Methods: 100 CBCT Scans Showing Both Maxillary And Mandibular Dentation "with Total Number Of 2576 Teeth" Were Selected From The Database Of OMFR Department, Faculty Of Dentistry, Cairo University, Based On Certain Eligibility Criteria. Identification Of Fenestration And Dehiscence On CBCT Scans Was Done Using The Identification Criteria First Mentioned By Davies Et A11974.

Results: Fenestration Was Found In 17 % Of The Population With A Total Of 26 Affected Teeth (representing 1 % Of The Involved Teeth) While Dehiscence Was Found In 50% Of The Population With A Total Of 194 Affected Teeth (representing 7.5% Of The Involved Teeth). Upper 2nd Molars Showed The Highest Prevalence Of Fenestration While Lower Central Incisors Showed The Highest Prevalence Of Dehiscence. Gender Was Found Not Significantly Affecting The Incidence Of Both Defects, While Age Was Significantly Affecting The Incidence Of Dehiscence, Where Older Subjects Were Found To Be 11.5 Times More Prone To Develop Dehiscence Than Younger Subjects.

Conclusions: The Relative Common Finding (50%) Of Dehiscence And To Lesser Extent (17%) Fenestrations Supports The Need For CBCT Examination Before Any Surgical &/or Implant Treatment Procedures Even In Areas Believed Previously To Be Safe Zones "lower Anterior Region" To Avoid Complications Related To The Initial Presence Of Fenestrations And Dehiscence.

Nada Ashraf Kamal, Farid Medhat Farid And Yara Rabia Helaly,

Objectives: The Study Aimed To Assess The Prevalence Of C-shaped Root Morphology In The Mandibular First And Second Molars Of Egyptian Sub Population Using CBCT.

Materials and Methods: 169 CBCT Scans Including 384 Mandibular First And Second Molars Were Examined Using Planmeca Romexis" Viewer Software. Scans Were Analyzed In The Three Planes Axial, Coronal And Sagittal_by Two Oral Radiologists Detecting The Presence Of C-shaped Root Morphology. Qualitative Data Were Presented As Frequencies And Percentages. Inter- And Intra? Observer Agreement Was Assessed Using Kappa Statistic For Qualitative Data.

Results: C-shaped Root Was Found In 36 Second Molars Comprising 17.1 % Of Second Molars, And No C-root Was Found In First Molars.Conclusion: C-shaped Root Is Not Rare In The Mandibular Second Molars Of The Egyptians Needing The Clinicians To Learn How To Manage Such Cases.