Laila Akmal, Mai Yousry, Essam Abd Elhafez And Mai Mamdouh,

ABSTRACT


Aim: The Aim Of The Study Was To Assess The Efficacy Of Caries Excavation Using The Papain-based Chemo-mechanical Method (Brix 3000) In The Reduction Of Streptococcus Mutans Count In Occlusal Carious Cavities

Materials and Methods: Twenty-three Patients Having Decayed Molars Were Selected Randomly And Divided Into Two Groups: Group A Before Being Treated By Brix 3000, Group B After Being Treated By Brix 3000. Two Dentin Samples Were Collected Before And After Caries Removal And Were Immediately Transferred To Sterile Disposable Test Tube Containing 1.5 Ml Thioglycollate Medium. Statistical Analysis Was Done Using Wilcoxon Signed Rank Test For Paired (matched) Samples.

Results: The Results Revealed A Statistically Significant Difference In The Mean Values Between Dentin Samples At The Baseline 230.2 � 76.1and After The Application Of The Brix 104.1 � 43.0 In CFU/ml Where (p<0.001). Conclusion: Brix 3000 Is A Viable Option For The Minimally Invasive Removal Of Dental Carious Tissue, Obtaining Significant Reductions In Total Bacterial Count.

Hoda O. Fouda, Mohamed F. Haridy And Mohamed R. Farid,

ABSTRACT


Aim: To Evaluate The Efficacy Of Immediate Dentin Sealing Using Universal Adhesive In Comparison To Delayed Dentin Sealing In The Reduction Of The Hypersensitivity In Teeth Prepared For Indirect Tooth Composite Restorations Using Visual Analog Scale (VAS).

Materials and Methods: Fifty-four Patients Between 18 And 30 Years Of Age Were Recruited And Randomized To The Treatment Protocols. After Baseline Preoperative Data Collection, Diagnosis Of Caries Was Done Depending On The Basis Of Clinical Examination That Was Done Tentatively And Radiographic Examination Was Done As Well. After Cavity Preparation Was Done, For The Cavities To Be Managed With Immediate Dentine Sealing, The Single Bond Universal Adhesive Was Applied Over All The Dentinal Surfaces According To The Manufacturer�s Instructions. For The Cavities To Be Managed With Delayed Dentine Sealing, No Adhesive Was Applied On The Dentinal Surfaces And The Impression Was Taken Directly After Cavity Preparation Using Two-step Technique. Hyper-Sensitivity Was Evaluated Both Intra-operatively (at Baseline One Day After The Cavity Preparation: By Applying Air From The Triple Way Syringe Directly Over The Prepared Cavity And One Week During Temporization) And Post Operatively Using (VAS). After Try In And Cementation Of The Indirect Composite Restoration Post-cementation Evaluation Was Done. (VAS) Results Were Tabulated And Statistically Analyzed.

Results: Delayed Dentin Sealing Group (4.75) Had A Significantly Higher Median Value Of (VAS) Than Immediate Dentin Sealing Group (0.32) (P<0.001). There Was A Significant Difference Between The Scores At Different Follow-up Intervals (P<0.001). The Highest Median Value Of (VAS) Was Found At Baseline (3.37) Followed By That Found One Week During Temporization (2.91) While The Lowest Median Value Was Found One Week After Cementation (0.16). Pairwise Comparisons Showed Median Value Found One Week After Cementation (0.16) To Be Significantly Lower Than Those Found At Baseline (3.37) And One Week During Temporization (2.91) (P<0.001).

Conclusions: Inter-operative And Post-cementation Hypersensitivity Problem After Indirect Resin Composite Restorations Could Be Solved By Using The Immediate Dentin Sealing Protocol Using A Self-etch Adhesive.

Haneen A ELmoselhy, Mohamed F. Haridy And Olfat E. Hassanein,

ABSTRACT

Objectives: To Assess The Reliability And Reproducibility Of Secondary Caries Diagnosis Using Light Induced Fluorescence Device �Soprolife� In Comparison To Conventional Visual-tactile Method According To Modified USPHS Restoration Assessment.

Materials and Methods: A Total Of 29 Volunteer Patients Were Assigned In This Study. Each Patient Had At Least One Defective Posterior Occlusal Resin Composite Restoration. The Restoration Was Evaluated By Two Diagnostic Methods (D), Where D1 Represents Visual-tactile Assessment Method (according To Modified USPHS1) And D2 Represents Light Induced Fluorescence Intraoral Camera(SoproLife Camera) Intra And Inter-rater Reliability Were Analyzed Using Cohen�s And Fleiss� Kappa Respectively. McNemar�s Test Was Used To Study Inter And Intro Group Comparisons

Results: McNemar�s Test Showed That For All Raters And In Different Follow-up Intervals There Was No Significant Difference In Caries Detection With Both Methods (P>0.005). Conclusion: The Conventional Visual-tactile Method As Well As The Light Fluorescence Device SOPROLIFE Were Found To Be Valuable Complementary Diagnostic Methods For Diagnosis Of Secondary Caries Around Existing Restorations.

Mohamed T. Heiba, Mohamed F. Haridy And Olfat E. Hassanein,

ABSTRACT

Objectives: To Investigate The Incidence Of Caries In Pits And Fissures Sealed With A Bioactive Sealant Compared To A Fluoride Releasing Resin Based Pits And Fissures Sealant In Preventive Treatment Procedures In Adult Population Over A Six-month Period.

Materials and Methods: A Total Of 40 Volunteer Patients Who Fulfilled The Inclusion Criteria Were Selected For This Randomized Split-mouth Clinical Trial. In Each Patient, The Two Types Of Pit And Fissure Sealant Were Used. A Fluoride-releasing Pit & Fissure Sealant (Seal-Rite�, S1) Was Placed In One Side, While A Bioactive Pit & Fissure Sealant (Embrace� WetBond�, S2) On The Contralateral Side; Such That The Total Number Of Sealants Placed In All Patients Were (N=80). All Sealants Were Evaluated Using Soprolife� Intra-oral Camera By Two Investigators Who Were Blind To The Material And Not Involved With The Treatment Procedures Used For The Restorations. Data Was Statistically Analyzed Using Cohen�s Kappa And Chi-square Tests.

Results: Immediate And 3-month Readings Revealed 100% Absence Of Caries In Both Groups. At 6 Months, Caries Developed In 8.8% Of Patients In S1, In Comparison To No Cases (0%) In S2. Chi Square Test Revealed No Statistically Significant Difference In Carried Incidence Between Groups. Conclusion: Bioactive Pit And Fissure Sealant As Well As Fluoride Releasing Sealant Could Be Considered A Valuable Preventive Method To Control Caries In Permanent Molars Over Six-month Period.

Doaa Mohamed Sayed, Nadia A Abbas And Nora Cheta,

ABSTRACT
This Study Aimed To : Compare The Retention Of PEEK And BRE.FLEX (second Edition) Materials In Maxillary Class III Modification 1 Removable Partial Dentures Using Digital Gauge Force Device.

Materials and Methods: Thirty Four Patients Having Kennedy Class III Modification 1 Maxillary Partially Edentulous Ridges With Fully Dentate Mandibular Arch Were Divided Into Two Equal Groups To Fabricate The Thermoplastic Materials. The First Group Received PEEK Material. The Second Group Received Bre.Flex Material. The Retention Was Measured Using Digital Force Gauge Which Is An Advanced Type Of Force Meter Device : At The Time Of Denture Insertion, After Two Weeks And After Four Weeks Of Denture Insertion. The Collected Data Were Tabulated And Statistically Analyzed.

Results: Showed That The Difference Between The Two Groups Was Statistically Significant Was Reported Between Two Groups Regarding Retention. Conclusion : The Mean Retentive Force Required To Remove The Bre-flex Removable Partial Denture Was Found To Be Statistically Significant Lower Than This Required To Remove PEEK Removable Partial Denture .

Nada M. Reda, Ahmed M. Halawa, Nehad S. Taha And Dina M. Abdel-Khalek,

ABSTRACT
Osteoporosis Is A Medical Condition Characterized By Low Bone Density And Micro-architectural Deterioration Of Bone. Antiresorptive Drugs And Estrogens Are Considered The Common Traditional Therapy For Post-menopausal Osteoporosis.

Aim: The Aim Of This Study Was To Evaluate The Action Of Red Clover And Chickpea On The Alterations Of The Mandibular Alveolar Bone And Periodontal Ligaments Induced By Ovariectomy In Albino Rats. Methods: 35 Adult Female Albino Rats Were Divided Into 5 Groups Each Of 7 Rats: The Negative Control Group (group I) That Were Only Subjected To Sham Operation And Did Not Receive Any Intervention, The Positive Control Group (group II) That Were Subjected To Ovariectomy Without Any Treatment, The Alendronate Sodium (bisphosphonate) Experimental Group (group III) That Were Subjected To Ovariectomy And Received Fosamax Daily For 3 Months One Month Postoperative, The Chickpea Experimental Group (group IV) That Were Subjected To Ovariectomy And Received Chickpea Extract Daily For 3 Months One Month Postoperative. And The Red Clover Experimental Group (group V) That Were Subjected To Ovariectomy And Received Red Clover Extract Daily For 3 Months One Month Postoperative. After Rats Were Terminated, Mandibular Molar Regions Were Excised And Stained For H&E Stain And Anti-fibronectin (FN) Immunohistochemical Stain. Specimens Were Also Examined For Bone Mineral Density (BMD).

Results: Histological And Immunohistochemical Examination Showed Inflammatory Reaction In Alveolar Bone And Oblique Fibers That Decreased Over The Course Of Treatment With Phytoestrogens. Statistical Results Showed That There Was No Significant Difference Between Phytoestrogens And Alendronate Sodium Drug (bisphosphonate) And There Was A Significant Difference Between Group II And All Experimental Treated Groups As Well As Between Group I And Experimental Treated Groups. Conclusion: Alternative Hormone Replacement Therapy Using Phytoestrogens Was Associated With Variable Grades Of Statistically Significant Reduction Of Osteoporosis And Periodontitis.

Shymaa H. Elsharkawy, Maha Wagdy And Ahmed E. Fayyad,

ABSTRACT
This Study Was Conducted To Evaluate The Effect Of Fiber Meshwork Reinforcement On The Fracture Of Maxillary Complete Dentures. Two Groups Of Dentures Were Fabricated. Five Dentures In Each Group. The First Group Had Conventional Non-reinforced Maxillary Complete Dentures. The Second Group Had Fiber-meshwork Reinforced Maxillary Complete Dentures. All Samples Were Individually Mounted On A Computer Controlled Materials Universal Testing Machine, Where Load Was Applied Bilaterally Using T-shaped Load Applicator. Initial Crack Load, Fracture Load And Fracture Pattern Were Recorded For Each Tested Denture. There Was No Statistical Significant Difference In Both Initial Crack And Fracture Loads Of Both Groups, On The Other Hand The Fracture Pattern Of The Fiber-meshwork Reinforced Group Was More Favorable And Less Extensive Compared To The Fracture Pattern Of The Non-reinforced Group. In The Clinical Situation, Both Conventional And Fiber-meshwork Reinforced Maxillary Complete Dentures Are Expected To Be Strong Enough To Resist Fracture Under Maximum Biting Forces, With The Fiber-meshwork Reinforced Dentures Having A More Favorable And Less Extensive Fracture Pattern Compared To The Conventional Non-reinforced Dentures.

Mohammed Mostafa Rehab, Reem Ahmed Lutfy And Shaimaa Gawdat,

ABSTRACT
The Aim Of This Study Was To Evaluate The Time Consumed And Total Removal Of Smart Paste Bio System Compared To AH-plus Sealer And Gutta-percha In Obturated Single Rooted Teeth By Using Hedstrom Files With Gates-Glidden Burs Compared To D-race Retreatment System.

Materials and Methods: Fifty Two Single-rooted Teeth Were Used In This Study. The Teeth Were Decoronated, Prepared Using The Protaper Rotary System And Obturated Using The Modified Single Cone Technique. The Samples Were Then Divided Into Two Main Groups (n=26) According To The Sealer Used In Obturation: Group I: AH-plus Sealer. Group II: Smart Paste Bio Sealer. Each Group Was Further Subdivided Into Two Subgroups (n=13) According To The Method Used In Removal Of Obturation Material: Subgroup 1: H-files And Gates-Glidden Drills. Subgroup 2: D-race Retreatment System.

Results: The Results Revealed That There Is No Significant Difference Between Smart Paste Bio Sealer And AH-plus Sealer Regarding Residual Debris. Regarding The Method Of Root Canal Filling Removal, D-race Retreatment System Showed Significantly Faster And Efficient In (GP/AH-plus) Obturation System Removal Than H-files And Gates Glidden And Slower But Efficient In (SPBio) Obturation System Removal Than H-files And Gates-Glidden.

Ghada Adel Tahoun, Sara Ahmed Mahmoud, Amr Ezzat Abdul Latif And Lobna Mohamed Shalaby,

ABSTRACT
AIM: To Provide Information On The Frequency Of Hypodontia In Children Cancer Survivors Who Received Chemotherapy Before 4 Years Of Age. METHOD: A Total Of 144 Cancer Survivor Who Received Anti Neoplastic Chemotherapy At Children Cancer Hospital Egypt 57357 Before They Were 4 Years Old Were Selected Using Stratified Random Sampling. Those Who Met The Eligibility Criteria Were Asked To Attend For A Panoramic Radiographic Examination. Dental Panoramic Radiographs Were Examined To Assess Hypodontia, Excluding Third Molars. RESULTS: The Frequency Of Hypodontia In Childhood Cancer Survivors Who Received Antineoplastic Chemotherapy Before The Age Of 4 Is 9.72% (14 Of 144). There Was No Statistical Significant Difference Between Tumor Types And Hypodontia (P>0.05). CONCLUSION: This Study Confirms That Children Who Receive Antineoplastic Chemotherapy Before The Age Of 4 Are At A Higher Risk Of Developing Hypodontia.

Christine Atef Banoub, Mushira Mohamed Abdelatif Dahaba And Enas Anter Abd El Ghafar,

ABSTRACT
Background: Forensic Odontology Is Described By The Federation Dentaire Internationale As �that Branch Of Dentistry Which, In The Interest Of Justice, Deals With The Proper Handling And Examination Of Dental Evidence And The Proper Evaluation And Presentation Of Dental Findings�. This Study Aimed To Investigate And Analyze The Difference Between Egyptian Males And Females In Mandibular Indices� Measurements And Mental Foramen Position Using Cone Beam Computed Tomographic Images.

Materials and Methods: Thirty Six Patients Were Included In This Study. They Were Divided Equally Into Two Groups. The First Group Included Eighteen Females And The Second Group Included Eighteen Males. All Of The 36 Participants Were Scanned Using CBCT Scanner Then Six Indices Were Obtained From The Reformatted Panoramic Images Of Each Mandible (superior Index Of Mental Foramen Position, Inferior Index Of Mental Foramen Position, Mental Index, Gonial Angle, Antegonial Index And Ramus Height).

Results: It Was Found That There Was Statistical Significant Difference Between Males And Females Regarding Three Parameters Namely Superior Index Of Mental Foramen Position, Inferior Index Of Mental Foramen Position And Ramus Height However, There Was No Statistical Significant Difference Between Males And Females Regarding Three Parameters Namely Gonial Angle, Mental Index And Antegonial Index. Assessment Of Intra-observer And Inter-observer Reliability Regarding All Linear And Angular Measurements Showed Highly Significant Agreement Between Observers. Conclusion: Certain Mandibular Indices As: Superior Index Of Mental Foramen Position, Inferior Index Of Mental Foramen Position And Ramus Height Of Mandible Are Rendered As Reliable Gender Discriminators In Forensic Odontology. The Mean Values Of Males Are Higher Than Females Regarding The Superior Index Of Mental Foramen Position, Inferior Index Of Mental Foramen Position And Ramus Height. Certain Mandibular Indices As: Mental Index, Gonial Angle And Antegonial Index Are Rendered As Non-reliable Gender Discriminators In Forensic Odontology. Cone Beam Computed Tomography Is Considered As The Imaging Modality Of Choice To Assess The Role Of Mental Foramen Position And Mandibular Parameters In Gender Determination.