Omar A. Esmat, Amr Emad El Dakroury, Amany Hassan And Mai Hamdy Aboelfetouh,

ABSTRACT


Introduction: The Aim Of This Study Was To Investigate The Effect Of Intrusive Forces Generated During The Treatment Of Deep Over-bite In Class II Division 2 Cases On Root Resorption, By Using Two Different Mechanics, Mini-screw Implants And Intrusive Archwire. Cone Beam Computed Tomography (CBCT), Was Used In This Study To Determine The Degree Of Root Resorption. Design: This Study Was Done According To The CONSORT Statement Adaptations For Orthodontic Trials , The Study Design Is A Single Center Randomized Clinical Trial, Parallel Design Where Participants Were Randomly Assigned To Either Interventional Or Comparison Group With A 1:1 Allocation Ratio. Participants: Fourteen Class II Division 2, Deep Bite Cases, Age Range From 15-25 Years, And Having Deep-bite Of More Than 5 Mm, Were Recruited From The Outpatient Clinic At The Department Of Orthodontics, Faculty Of Dentistry, Cairo University From March 2015 To March 2017. This Study Was Approved By The Research Ethics Committee, Faculty Of Dentistry, Cairo University Approved This Study. All Patients Were Informed About The Study Procedures, Participants Were Further Divided Into 2 Groups According To The Intervention Applied. Intervention: For Each Patient Two CBCT Scans Were Obtained; One Pre-operative And Another After Completion Of Intrusion. A Full Strap Up Was Done At The Beginning, Then Allocation Of The Subjects Was Done At The Day Of Placing The Screws Or The Intrusive Arch By Using Opaque Sealed Envelops, To Randomly Allocate The Subjects, To Avoid Selection Bias.

Results: Mini-screw Group Showed Statistically Significantly Higher Mean Root Length Than Archwire Group. As Regards Root Resorption, There Was No Statistically Significant Difference Between Mean Root Resorption Values In The Two Groups. Conclusion: Mini-screws Showed Higher Mean Root Length Decrease Than Archwire Group. As Regards Root Resorption, There Was No Statistically Significant Difference Between Mean Root Resorption Values In The Two Groups.

Asma?a A. Faden , Noura Mohammad Alyabis, Sumayyah Hasil Alahmari, Sarah Saad AlaathyAmjad Abdullah AlMawash Nouf Adel Alzaaqisand Daniah Mohammed AlMunie,

ABSTRACT
Objective:�To Assess General Population Knowledge And Attitude Regarding Personalized Dentistry In Riyadh City, Saudi Arabia.� Materials And Methods:�This Study Was A Cross-sectional Online Survey Targeting General Population At Riyadh City, Saudi Arabia. A Questionnaire Composed Of 3 Parts, Total Of 8 Questions, And It Takes About 2-3 Minutes To Complete It, It Was Randomly Distributed To A Total Of (1043) Participants. Comparative And Diagrammatic Analysis Was Conducted Using Microsoft Office EXCEL Software 2010 And SPSS 2.1.

Results:� When Introduced To Personalized Dentistry; Only 239 (28.1%) Of Riyadh Population Participants Knew About It,�804 (71.9%) Of The Participants Were Not Aware About Personalized Dentistry, Yet Only 239 (28.1%) Acknowledged To Having Heard Of Personalized Dentistry. Conclusion: The Participant Showed An Interest In Knowing More About Personalized Dentistry, But Still Need More Public Education Regarding The Advancement Of The Health Topics. Recommendations: General Schools Should Incorporate Genomics In The Curricula To Refine Our Ability To Predict And Prevent Future Disease, Better Diagnostic And Prognostic Precision.

Sovana Tarek Mohamed, Abeer Marzouk And Shaimaa Ismail Gawdat,

ABSTRACT


Aim: The Study Was Designed To Compare The Anesthetic Efficacy Of 2% Mepivacaine With 1:100000 Epinephrine To That Of 4% Articaine With 1:100000 Epinephrine In Inferior Alveolar Nerve Block Injection For Mandibular Molars With Symptomatic Irreversible Pulpitis During Access Cavity Preparation And Root Canal Instrumentation. Methods: Sixty-six Patients With Symptomatic Irreversible Pulpitis In Their Mandibular Molars Were Randomly Allocated To Two Groups Receiving IANB Injection Of Either 2% Mepivacaine With 1:100 000 Epinephrine Or 4% Articaine With 1:100 000 Epinephrine. Root Canal Treatment Was Started At 15-minutes Post Injection In Presence Of Profound Lip Numbness And Completed In A Single Visit. Patients Were Asked To Rate Their Preoperative Pain, Pain During Access Cavity Preparation And Root Canal Instrumentation On A Numerical Rating Scale (NRS).

Results: Anesthetic Success Of The Mepivacaine Group Was (42.4%) While That Of Articaine Was (39.4%). The Difference Between The Two Groups Was Not Statistically Significant (p= 0.802). Conclusion: Anesthetic Efficacy Of 2% Mepivacaine Was Similar To That Of 4% Articaine In Inferior Alveolar Nerve Blocks For Anesthetizing Mandibular Molars With Symptomatic Irreversible Pulpitis.

Ehab Abd El Hamid Ahmed , Saied Mohamed Abdel Aziz And Hany Samy Sadek,

ABSTRACT
A Parallel Randomized Clinical Trial To Answer Clinical Question In Patients Having Non-vital Teeth With Apical Periodontitis Would Triple Antibiotic Paste Root Canal Disinfectant In Comparison To Calcium Hydroxide Root Canal Disinfectant Differ In Postoperative Pain. Thirty-eight Medically Free Participants Who Had Non-vital Single Rooted Teeth With Apical Periodontitis Were Randomly Assigned Into Two Equal Groups According To The Root Canal Disinfectant To Be Used, Either Calcium Hydroxide (group A), Or Triple Antibiotic Paste (group B). Root Canal Treatment Was Completed In Two Visits; In The First Visit Root Canal Shaping And Cleaning Was Performed, Root Canal Disinfectant Placed, And Each Participant Was Scheduled For A Second Appointment To Complete Root Canal Therapy After 2 Weeks. Postoperative Pain Was Measured Using A Numerical Rating Scale (NRS) At 4, 24, 48, 72 And 96 Hours After Initial Visit. Results Showed That Through The Whole Study Period; There Was No Statistically Significant Difference Between Mean Pain Scores In The Two Groups. It Could Be Concluded That The Use Of Root Canal Disinfectant Either Calcium Hydroxide Or Triple Antibiotic Paste In Non-vital Teeth With Apical Periodontitis Reduced Postoperative Pain.

Rami Mahmoud Abdel Moneim Elmougi, Mahmoud Ibrahim El Shennawy Olfat Mohamed Gab Allah And Atia Abd Elwareth Yousif,

ABSTRACT


Introduction: Demineralization Is Considered One Of The Major Side-effect Associated With Fixed Orthodontic Treatment Which Usually Associated With Poor Oral Hygiene. Aim Of The Work: The Purpose Of This Study Was To Compare In Vitro The Enamel Integrity After Orthodontic Banding With Zinc Phosphate Cement, Conventional Glass Ionomer Cement, Resin Modified Glass Ionomer Cement And Polyacid-modified Composite Resin Cement Using Atomic Force Microscope. Method: The Study Was Conducted On 50 Extracted Premolar Teeth. Teeth Were Cleaned, Dried And Divided Into Five Groups Of 10 Each With Their Respective Cement. The Teeth Were Then Placed In Artificial Saliva For 30 Days. Then Deboning, Cleaning And Placed In Artificial Demineralizing Solution For 4 Weeks. Later Cleaned And Prepared For Examination Using Atomic Force Microscope. The Average Roughness (Ra) And The Surface Area (SA) Were Measured For Each Scanned Area, And Numerical Data Were Presented As Means And Standard Deviations. Result: The Results Obtained From The Present Study Revealed That (GIC, RMGIC, Compomer) Demonstrated Significantly Less Enamel Demineralization As Measured By AFM Than Did The ZPC And The Control Group. The GIC And RMGIC Cements Showed Significantly Lesser Amount Of Demineralization Than The Compomer Cement Group. Conclusion: GIC And RMGIC Are Both Effective In Reducing Enamel Demineralization After Orthodontic Banding As Measured By Atomic Force Microscope

Asaad Ragab Mohamed Kandel, Nesreen Elmekawy And Ahmed Khalifa Khalifa,

ABSTRACT


Purpose: Assessment Of The Influence Of Attachment Types And Standard Inter-implant Distance On Retention Of Mandibular Implant Overdentures

Materials and Methods: Twelve Fully Edentulous Patients Were Enrolled For This Study. Conventional Complete Dentures Were Made And Duplicated Into Stereolithographic Surgical Guide Using CBCT. According To Implant Planning, Each Patient Received Two Anterior Mandibular Implants Placed At The Anterior Region Bilaterally With Inter Implant-distance 19 Mm . After 3-4 Months Osseointegration Period, OTEquator Attachments Were Screwed To The Implants For Group A And Locator Attachment Were Screwed To Implants For Group B, And Matrices Were Picked-up Into The Mandibular Overdenture. The Retention Of The Mandibular Overdenture Was Evaluated Before Insertion (T0),at Time Of Insertion Of Mandibular Over-denture (T1), Three Months After Insertion (T3

Results: Comparing The Retentive Forces Of The Prosthesis At Different Periods Of Study, There Was Statistically Significant Decrease In Retention Measurements Before Over Denture Insertion, Significant Increase In Retention At Time Of Insertion Of Overdenture Also A Significant Increase Of Retention After 3 Months From Denture Insertion Was Observed Conclusion: Two Implant Overdenture With OTEquator And Locator Attachments Could Be A Reliable Treatment Option For Edentulous Mandible In This Short Term Study .

Ragi A. Alemam, Mohamed M. Elsheikh, Nahed A. Kashef And Azza M. Hassan,

ABSTRACT
Objective: The Objective Of This Study Was To Evaluate The Effect Of Two Different Flexible Denture Base Materials (Flexiplast And Versacryl) On Retention And Microbial Changes In Completely Edentulous Patients With A Bilateral Maxillary Buccal Undercut.

Materials and Methods: Twenty Completely Edentulous Patients With Bilateral Maxillary Buccal Undercut Were Selected For This Study. Patients Were Divided Into Two Groups: Group I Received Their Dentures Constructed From Flexiplast, While Group II Received Their Dentures Constructed From Versacryl. Patients Were Recalled For Follow Up At Delivery, 1 Week, 3 Months And 6 Months To Measure Denture Retention Using A Digital Force Gauge In Newton. Microbiological Changes Were Evaluated Using Standard Isolation And Identification Techniques At Different Time Intervals. The Data Of This Study Were Collected, Tabulated And Statistically Analyzed Using SPSS 20 And Student?s T-test To Compare Between The Two Groups.

Results: Flexiplast Has A Higher Retention Value Than Versacryl During The Six Month Periods. Flexiplast Showed A Slightly Higher Number Of Microorganisms Than The Versacryl In The First Week. However, Both Groups Reported The Same Number Of Microorganisms After Three And Six Month Periods. Conclusion: Flexiplast Denture Retention Was Higher Than Versacryl Denture. Retention Of Versacryl Denture Was Increasing With Time. Both Groups Showed Microorganisms Growth With Time.

Ahmed G. Ahmed , Dalia M. Fayyad And Nihal E. Sabet,

ABSTRACT
This Study Aimed To Evaluate The Antimicrobial Effect Of Salvadora Persica (Miswak), Sterilox (super-oxidized Water) And Peractic Acid In Comparison With Sodium Hypochlorite When Used As An Irrigant In Infected Root Canals On 3 Types Of Bacteria Staphylococcus Aureus, Escherichia Coli And Enterococcus Faecalis.

Materials and Methods: One Hundred Recently Extracted Human First Maxillary Molars Were Collected With Their Palatal Roots Cut From The Coronal Portion To A Standardized Length Of 12mm. Then Root Canals Were Infected With Bacteria And Incubated For One Week. Root Canals Were Classified Into Four Groups (n=20) According To The Type Of Final Irrigant Used As Follow: Group I Was Treated With Salvadora Persica 50% ,Group II Was Treated With Sterilox, Group III Was Treated With Peractic Acid 2.5%, Group IV: Was Treated With Sodium Hypochlorite 2.5%. Two Other Groups (n=10) Were Positive And Negative Control. A Classical Bacterial Count Technique With The Aid Of Colony Counter Machine Was Used On The Agar Plates, So The Mean Value Of Colony Forming Units For The Plates Of Each Group Was Calculated By The Quantitative Method As A Measure Of The Number Of Viable Bacteria Existed. To Determine The Penetration Of Viable Bacteria Into The Dentinal Tubules, Dentin Shavings Was Obtained From The Samples By Using #3 And #5 Gates Glidden Drill. Debris Collected On The Flutes Of Each Drill Was Placed In Eppendorf Tube Containing Saline And Vortexed For 30 Seconds. Then The Infected Saline Was Placed On Nutrient Agar Plates And Incubated For 48 Hours.

Results: Regarding The Antibacterial Effect In The Three Time Intervals (immediate, 48 Hours And 3 Weeks) Showed That NaOCl Was The Most Effective Irrigant Among All Irrigants Used, Followed By Peracetic Acid, Sterilox And Then Followed By Salvadora Persica. Regarding The Penetration Showed That Peracetic Acid Was The Most Effective Followed By NaOCl, Sterilox And Then Followed By Salvadora Persica. Conclusion: Sodium Hypochlorite Was The Best Antibacterial Irrigant Used, Yet Peracetic Acid Was Very Promising As It Had Antibacterial Effect Close To Sodium Hypochlorite But It Acts Also As A Chelating Agent.

Mennatallah S. Ahmed Farouk, Norhan A. El Dokky And Dalia M. Moheb,

ABSTRACT
Objective: To Test The Effectiveness Of Neem Leaf Extract In Resolving Pain, Swelling And Other Signs Of Periapical Infection Compared To Chlorhexidine Gluconate Used As Root Canal Irrigant In Pulpectomy Treatment For Primary Molars. Subjects And Methods: The Study Was Carried Out In The Pediatric Dentistry And Dental Public Health Department, Faculty Of Dentistry, Cairo University. Patients Attending The Outpatient Clinic Of The Department Presenting With One Or More Teeth Showing Signs Of Necrosis And Non-vitality Were Diagnosed And Examined For Their Eligibility. This Study Included 40 Non-vital Upper And Lower, First And Second Primary Molars. 20 Molars In Group I Were Irrigated With Natural Herbal Irrigant Of Neem Leaf Extract And 20 In Group II Were Irrigated With Chlorhexidine Gluconate Root Canal Irrigant. Intracanal Bacterial Counts Were Compared Before And After Irrigation Using Paper Points Then The Patients Were Followed Up For Resolution Of Pain And Swelling For 3 Months.

Results: There Was No Significant Difference Between The 2 Groups Considering The Bacterial Counts And Clinical Outcomes. Conclusion: Neem Leaf Extract Is Comparable To Chlorhexidine When Used As An Intracanal Irrigant.

Hiba Obad Saleh, Kadry Mohammed Nasr, Ayman Hussien Abdull Sattar And Khaled Amr,

ABSTRACT
Objective: To Examine Whether There Is A Relation Between The Palatal Index And The Incidence Of Postoperative Fistula In Patients With Complete Unilateral Cleft Palate.

Materials & Methods: Thirty Patients With Complete Unilateral Cleft Palate Were Included In This Study. Preoperative Predicator Variables Were Categorized As Demographic, Anatomic And Operative Variables. Evaluation Of These Variables Was Done Through A Personal Data, Medical And Surgical History, Family History And Type Of Cleft. After Detailed Clinical Evaluation, Every Patient Underwent Routine Preoperative Laboratory Tests. The Palatal Index Was Obtained Preoperatively With The Patient Under General Anesthesia Using A Caliper And Registered In A Format. Postoperatively Each Patient Was Followed Up At 3 Weeks, 3months, 6 Months And 9 Months For Fistula Development.

Results: Results Showed That There Was Association Between Palatal Index And Presence Of Fistula In Patients With Complete Unilateral Cleft Palate In Which Cases Recorded Mild Index Didn?t Develop Fistula While Cases Recorded Moderate And Sever Index Developed Fistula. Conclusion: Palatal Index Was A Good Predicator Of Fistula Formation. It Was A System Designed To Estimate The Secondary Palatal Deformity By Considering The Cleft Width And The Tissue Deficiency (width Of The Palatal Segments), So This Gave The Surgeon Information About The Amount Of Soft Tissue Available For Palatal Flaps And Its Relation To The Width Of The Cleft To Be Repaired.