Aya Abd El- Rhman Abd El- Atty, Hesham El-Sayed El-Hawary And Khalid Amr,

ABSTRACT
Visible Head And Neck Skin Scars Have A Negative Psychological Impact On Patients, Thus Many Trials Were Achieved To Minimize It. The Aim Of The Present Study Was To Compare Between The Effect Of Botulinum Toxin Type A (BTA) And Silicone Gel Patch On Scar Formation. Twelve Patients With Condylar And/or Angle Fracture Were Treated By Open Reduction And Internal Fixation Through Retro-mandibular Incisions. They Divided Randomly Into Two Groups. Group A Received Botulinum Toxin Type A (BTA) Injection While Group B Were Treated With Silicone Gel Patch. Nine Patients Completed The Trial. According To OPSAS, VSS And VAS, The Difference Between The Two Groups At One Month, And Six Months Was Statistically Insignificant, Meanwhile, There Was A Statistically Significant Difference In The Improvement Of The Scar Appearance That Treated By Either BTA Or Silicone Patch. According To This Study, We Concluded That BTA And Silicone Patch Has The Same Effect On Prevention Of Scar Formation.

Nada Saeed Mustafa , Dina Mohamed El Beshlawy And Sahar Hosny El Dessouky,

ABSTRACT
Objective: This Study Aimed To Assess The Accuracy Of Linear Measurements Achieved Using Planmeca Promax 3D MID? CBCT Scanner In Both Standard And Different Head Positions.

Materials and Methods: Eleven Dry Human Skulls Were Selected Where Gutta Percha Markers Were Located To Define 3 Dimensions (occluso-apical, Bucco-lingual And Mesio-distal Dimensions) In 5 Regions For Each Jaw: Anterior, Bilateral Premolar And Bilateral Molar. Real Measurements Were Taken Using A Digital Caliper. Then, The Skulls Were Imaged In Standard And Four Accurately Adjusted Different Head Positions (forward Tilt, Backward Tilt, Lateral Tilt And Rotation). Linear Measurements Were Performed On CBCT Images By Two Radiologists Separately And Independently.

Results: Statistical Analyses Revealed Excellent Inter And Intra Observer Agreement Between The Linear Measurements Performed By Both Observers On CBCT Images In Each Skull Position And Moreover, An Excellent Agreement Of These Measurements And The Real Measurements. The Absolute Measurement Error Did Not Exceed 0.52 Mm In All The Study Regions Of All The Skull Positions, And No Statistically Significant Difference Was Found Between This Error In All CBCT Linear Measurement Performed In Any Skull Position. Conclusion: Within The Limitations Of The Current Study, Linear Measurements Performed Using Planmeca Promax 3D MID? Are Accurate And Reliable, And Their Accuracy Is Not Influenced By Minor Changes In The Patient?s Head Position.

Sarah Diaa El Din Tawfik, Ghada El-Hilaly Eid And Geraldin Ahmed,

ABSTRACT
Objective: The Purpose Of The Present Study Was To Assess Anesthetic Efficacy Of 4% Articaine Infiltration Versus 2% Lidocaine Nerve Block After Premedication By Ibuprofen In Endodontic Treatment Of Acute Irreversible Pulpitis In A Randomized Clinical Trial (RCT). Participants And Methods: Fifty-two Emergency Patients Diagnosed With Symptomatic Irreversible Pulpitis In Mandibular First Molar, Were Equally And Randomly Divided In Lidocaine And Articaine Groups. Patients Were Given A Tablet Of Ibuprofen 600 Mg Premedication One Hour Before Administration Of Local Anesthesia. Root Canal Treatment Was Performed In A Single Visit Using Revo-S Rotary System And Sodium Hypochlorite Irrigation For Cleaning And Shaping. Obturation Was Carried Out Using Lateral Compaction Technique And Resin Sealer. Patients Were Instructed To Rate Any Discomfort On The Numerical Rating Scale Through Access Preparation, Pulp Extirpation And Postoperatively. Pain Intensity Was Assigned Into 4 Categorical Scores: Score 1: None (0); Score (2): Mild (1-3); Score 3: Moderate (4-6); And Score 4: Severe (7-10). In The Current Study, The Primary Outcome Was The Pain Felt During Access Cavity Preparation And Secondary Outcomes Were Pain Felt In Radicular Pulp Extirpation And Postoperative Pain. Success Was Defined As No/mild Pain During Access Cavity Preparation. Chi Square Test And Mann Whitney U Test Were Used For Statistical Analysis. The Significance Level Was Set At P � 0.05.

Results: There Was No Statistically Significant Difference In The Number Of Cases That Reported Success In Lidocaine (n=10/26, 38.5%, N=16/26, 61.5%) Versus Articaine (n=13/26, 50%, N=19/26, 73.1%) During Access Cavity Preparation And Cleaning And Shaping, Respectively, With P Value �0.05. Postoperatively, There Was No Statistically Significant Difference Between The Two Groups At 6, 12 And 24 Hours; With P Values 0.884, 0.871 And 0.31, Respectively. Conclusion: Articaine Mandibular Buccal Infiltration Can Be An Alternative To Inferior Alveolar Nerve Block During Emergency Access Cavity In Mandibular Molars With Irreversible Pulpitis. None Of These Treatments Provides Satisfactory Profound Pulpal Anesthesia For For Mandibular Molars With Symptomatic Irreversible Pulpitis.

Maha M. Azab, Dalia M. Moheb, Osama I. El Shahawy And Mervat A. Rashed,

ABSTRACT
Objective: The Aim Of This, Randomized Control Trial Is To Compare Fracture Potential Of Posterior Zirconia Pediatric Crowns Cemented By Bio-active Cement Or Packable Glass Ionomer. Study Design: This Study Was Carried Out On 50 Mandibular Primary Molars Of Children Less Than 7 Years Old. The Included Teeth Were Restored With Zirconia Pediatric Crowns, And Divided Into 2 Groups According To Luting Cement: 1. Bio-active Cement, 2. Packable Glass Ionomer. Crowns Were Evaluated For Fracture Potential (crack Formation).

Results: After 9 Months Follow Up; There Were No Cracks Formed On Any Crown Surface Along The Whole Period Of The Study For Both Study Groups.

Conclusions: Zirconia Pediatric Crowns Have Superior Fracture Resistance Regardless Of The Type Of Luting Cement Used.

Sherine Fathy Ahmed Osman , Mouchira Salah El Din Mostafa And Wael Selim Amer,

ABSTRACT
Objective: The Aim Of The Current Study Was To Evaluate The Effect Of Antioxidants (Vitamin C, E And Zinc) Clinically And Radiographically On The Investing Tooth Structure Of Patients With Chronic Periodontitis.

Materials and Methods: This Study Was Conducted�on 20 Patients, Suffering From Chronic Periodontitis, Divided Into 2 Groups 10 Patients Receive Vitamin C, E And Zinc (test Group), 10 Patient Didn?t Receive Vitamin C, E And Zinc (control Group). Clinical Recordings (GI And CAL) Were Scored For Each Participant In The Study Before And After Non- Surgical Periodontal Treatment.�GCF Samples Were Obtained From Each Patient Included In The Present Study And The Amount Of MPP-8 In The GCF Samples Was Determined Using PCR. Radiographic Assessment For Bone Height Done By Digital Panoramic Radiographs. All Participant Were Followed Up At 1 Month And 3 Months.

Results: The GCF Concentration Of MPP-8 Was Significant Difference On ?mean % Of Change In MMP-8 Between Control Group And Test Group After 1 Month, 3 Months With P=0.023 And P=0.004 Respectively. Regarding To Radiographic Assessment Of Bone Height, It Showed A Significant Increase In Mean ? Bone Height In Control Group After 1 Month And After 3 Months With P=0.002 And P�0.001 Respectively. And Also There Was A Significant Increase In Mean ? Bone Height In Test Group After 1 Month And After 3 Months At P=0.004 And P�0.001 Respectively.

Conclusions: Radiographs Plays Integral Role In The Assessment Of Periodontal Diseases. They Provide Information About The Status Of Periodontium That Cannot Be Obtained Clinically. They Are Helpful In Evaluation Of Amount Of Bone, Present Condition Of Alveolar Crest, Bone Loss In The Furcation Area, Width Of The PDL, Local Irritating Factors And Poorly Contoured Restorations.

Sherine Fathy Ahmed Osman , Mouchira Salah El Din Mostafa And Wael Selim Amer,

ABSTRACT
Objective: The Aim Of The Present Study Was To Evaluate Clinically And Radiographically The Influence Of Antioxidants (Vitamin C, E And Zinc) On The Investing Tooth Structure Of Patients With Chronic Periodontitis

Materials and Methods: This Study Was Conducted�on 20 Subjects, Suffering From Chronic Periodontitis, Divided Into 2 Groups 10 Patients Receive Vitamin C,E And Zinc (test Group), 10 Patient Didn?t Receive Vitamin C, E And Zinc (control Group). Clinical Recordings (PI And PD) Were Scored For Each Participant In The Study Before And After Non- Surgical Periodontal Treatment.�GCF Samples Were Obtained From Each Patient Included In The Present Study And The Amount Of MPP-8 In The GCF Samples Was Determined Using PCR. Radiographic Assessment For Bone Density Done By Digital Panoramic Radiographs. All Participant Were Followed Up At 1 Month And 3 Months.

Results: The GCF Concentration Of MPP-8 Was Significant Difference On ?mean % Of Change In MMP-8 Between Control Group And Test Group After 1 Month,3 Months With P=0.023 And P=0.004 Respectively. Regarding To Radiographic Assessment Of Bone Density, An Insignificant Difference Between Control Group And Test Group At 1 Month Follow Up Period At P=0.131, But Showed Significant Difference Between Both Groups At 3 Months Follow Up Period At P=0.018.

Conclusions: Vitamin C, E And Zinc Have Potential Role In Bone Formation Due To Its Oxidative Function, It Helps In Decreasing Bone Loss And Increasing Radiographic Bone Density Around Periodontally Affected Teeth.

Sandy Samir Alphonse Sawares, Hossam Mohamed Essam Eldin Tewfik And Mohamed Mokhtar Nagy,

ABSTRACT
The Aim Of The Present Study Was To Evaluate The Antimicrobial Action Of Green Tea Extract When Used As Root Canal Irrigant. Forty Five Extracted Human Teeth Were Divided Into 3 Experimental Groups According To Type Of Irrigant Used (Green Tea, NaOCl And Saline). Teeth Were Decoronated, Instrumented, Sterilized And Then Teeth Were Incubated With Culture Suspension Of Enterococcus Faecalis. After Application Of Irrigant The Colonies Of E. Faecalis Of Each Group Were Counted To Evaluate Antimicrobial Efficacy. The Results Showed That The Samples Irrigated With NaOCl Showed Lowest Mean Value Of Bacterial Population Followed By Green Tea And Then Saline With A Statistically Significant Difference Between Groups.

Hatem Amer, Layla Hafed, Yasmine Alaa Eldin, Sally Ibrahim, Nada Nour Eldin And Hind Salem,

ABSTRACT
Warthin?s Tumor (papillary Cystadenoma Lymphomatosum) Is A Benign Tumor Of The Parotid Gland. Extraparotid Tumors Are Occasionally Detected. The Following Is A Case Report Of An Extra-parotid Warthin?s Tumor (submandibular Salivary Gland) With A Review Of The Important Clinical And Histopathologic Features Of This Tumor.

Mennat Allah Aboulnaga, Olfat Alsayed Hassanien And Asmaa Ali Yassen,

ABSTRACT

Objectives: To Evaluate The Change In Mineral Content And Ultra-morphological Picture Of Demineralized Enamel After Being Treated With NovaMin Application With And Without Poly-acrylic Acid- Bioactive Glass Powder Air Abrasion After 24 Hours And 3 Month From The Remineralization Period.

Materials and Methods: Eleven Sound Extracted Premolar Human Teeth Were Used. Each Tooth Was Divided Into 2 Halves (22 Specimens) The Buccal For Group P1 (preconditioned Group) And The Lingual For Group P2 (no Preconditioning). Specimens Were Assessed Before (T0), After (T1) Demineralization, After 24 Hours (T2) And Three Months (T3) From The Remineralization Period And Storage In Artificial Saliva. Pre-conditioning Was Induced By Air-abrasion Using Bioactive Glass 45S5 And Polyacrylic Acid Powder Mixture. Subsequently, Specimens Were Treated By NovaMin (Restore-DR Collins-USA). Quantitative Energy Dispersive X-ray Spectroscopy Elemental Analysis Was Performed On Enamel To Determine Ca/P Ratio Levels. The Ultra-morphological Analysis Was Done Using The Environmental Scanning Electron Microscope To Determine The Interprismatic Distance.

Results: 24 Hours After Remineralization Period Group Revealed The Highest Ca/P Ratio For Both Preconditioned And Without Preconditioning Protocols. Three Months After Remineralization And Intact Enamel Showed Similar Ca/P Ratio Mean Values. The Highest Inter-prismatic Space And The Lowest Ca/P Ratio Were Recorded In The Demineralized Groups. The Lowest Interprismatic Space Was Shown In The Intact Enamel Conclusion: Enamel Preconditioning With Bioactive Glass Did Not Play A Role In Its Remineralization. Novamin Is A Successful Remineralizing Agent. Time Had No Effect On The Enhancement Of The Already Remineralized Enamel.

Mostafa Mahmoud El Ghazali ; Amira Farid El Zoghbyand Mona Fadel Mohamed,

ABSTRACT
Objective: This Study Was Conducted To Evaluate And Compare The Internal Adaptation Of Two Bulk Fill Resin Composites; Admira Fusion X-tra And X-tra Fil In Class II Using 3 Different Techniques.

Materials and Methods: 48 Extracted Human Molars Were Selected And Divided Into 2 Groups; Admira Fusion X-tra And X-tra Fil. Each Group Was Sub-divided Into 3 Sub-groups According To The Application Technique; Bulk Fill, Split-bulk And Centripetal. Occluso-mesial And Occluso-distal Cavities Were Prepared And Restored Using Etch And Rinse Adhesive System (Solobond M). The Bulk Fill Resin Composites Were Applied Using One Of Three Techniques; Bulk, Split-bulk Or Centripetal Techniques. The Specimens Were Sectioned Followed By Caries Detecting Dye Application And Were Examined Using Stereomicroscope. Images Were Analysed To Detect The Internal Gaps.

Results: Both Types Of Bulk Fill Resin Composites Showed Insignificant Differences When Applied In Bulk Or Split-bulk Techniques. However, X-tra Fil Resin Composite Showed Statistically Significant Higher % Of Gap Formation When Applied In Centripetal Technique.

Conclusions: When Using Bulk Or Split-bulk Techniques, Either Of The Bulk Fill Resin Composites Can Be Applied To Get Equivalent Effect On Internal Adaptation. Combination Between Ormocer-based Resin Composite And Centripetal Technique Provides Proper Internal Adaptation With Less Gaps.