Ahmed Ahmed Rashed Alfar, Mohammed Abd Alaleem Bushnaq, Somia Abd Allateef Eissa And Eman Mohie Eldin Elsayed ,

ABSTRACT
The Aim Of The Study: The Aim Of This Observational Study Was To Compare The Severity And Type Of Malocclusion In Caries-positive Versus Caries-free Adolescents.

Materials and Methods: Ninety Six Subjects In The Age Range Of 12-19 Years Old Were Recruited And Classified Into Two Groups; Caries-positive And Caries-free Groups. Age, Sex And Socioeconomic Status Were Matched In The Two Groups To Control These Confounding Factors. Caries-positive And Caries-free Groups Were Compared As Regard To Severity And Type Of Malocclusion. Dental Aesthetic Index (DAI) Was Used To Assess The Severity And Type Of Malocclusion. Decayed Missing And Filled Teeth (DMFT) Was Used For Assessment Of Dental Caries.

Results: There Was No Significant Difference Between Caries-positive And Caries-free Groups As Regards To The Percentage Of Minor, Definite, Severe And Very Severe Malocclusion. There Was No Significant Difference Between Caries-positive And Caries-free Groups In DAI Score Or In Any Component Of DAI. Conclusion: Severity And Type Of Malocclusion Had No Correlation With Dental Caries

Yasmine Y. Gaweesh, Maha A. Abu Khadr Mahmoud M. Fata,Islam M. Abdel Raheem And Nourhan M. Aly,

ABSTRACT

Objectives: Evaluation Of A Newly Performed Modification In Digital Volumetric Analysis Used To Assess Volume Changes After Soft Tissue Volume Augmentation Using Subepithelial Connective Tissue Graft In Localized Horizontal Ridge Defects Methodology: The Study Was Designed As A Single Armed Clinical Trial Including 13 Localized Horizontal Ridge Defects. Soft Tissue Volume Augmentation Using Subepithelial Connective Tissue Graft Was Performed In The Ridge Defects. Impressions Were Taken At Baseline, 10 Days, 1 Month, 2 Months And 3 Months Follow Up. The Casts Were Optically Scanned, Digitized And Transferred To Stereolithography (STL) Files. Casts Of Each Defect Were Superimposed, Trimmed Together, And The Volume Of The Defect Area Was Measured By The Software. Afterwards, Volume Gain Was Calculated At Each Follow Up Time Point. Descriptive Analysis Was Computed And Paired T Test For Normally Distributed Variables Was Used To Compare The Baseline And Last Follow Up.

Results: The Mean Volume Of The Defect Site Was 727.38 ? 290.72 Mm?, And 783.46 ? 298.48 Mm? At Baseline, And 3 Months Follow Up, Respectively With A Statistically Significant Volume Increase. The Final Volume Gain Between Baseline And 3 Months Follow Up Was 57.46 ? 18.22 Mm? With A Statistically Significant Difference From The Initial Volume Gain.

Conclusions: The Modified Method Of Volumetric Analysis Is An Accurate Method For Assessing Soft Tissue Volume Augmentation That Is Easy To Standardize.

Manal Sayed Abdel Latief , Sara Ahmed Mahmoud And Sherif Bahagt Eltawil,

ABSTRACT
The Aim Of The Present Study Was To Assess The Effect Of Garlic With Lime Extract Mouthwash On Gingival Bleeding, Dental Plaque Formation And Salivary Streptococcus Mutans Counts In A Group Of Egyptian Children, And Compare Its Effect With 0.2 % Chlorhexidine Mouthwash. The Study Includes A Total Of 36 Children Aged From 9 To 12 Years, Divided Randomly Into Two Groups: Group A (garlic With Lime Extract) And Group B (chlorhexidine). The Plaque And Saliva Samples Were Taken, Then They Were Instructed To Rinse For 14 Days, Twice Daily With 10 Ml Of The Assigned Mouthwash For 30 Second. Again After 14 Days, The Saliva And Plaque Samples Were Taken And Inoculated On Blood Agar Plates To Determine The Streptococcus Mutans Count. We Found That There Was A Statistical Significant Difference Between Streptococcus Mutans Counts In Dental Plaque And Saliva Before And After Using Garlic With Lime Extract Mouthwash (P<0. 001 And P<0. 0001; Respectively). Similarly There Was A Statistically Significant Decrease In Bleeding After The Study (P<0.0001). There Was A Statistical Significant Difference Between The Two Mouthwashes Regarding Their Effects On Streptococcus Mutans Counts In Dental Plaque (p= 0.0001). However, There Was No A Statistical Significant Difference Between The Two Mouthwashes Regarding Their Effects On Streptococcus Mutans Counts In Saliva And Bleeding (p= 0.428 And 1.00; Respectively). The Conclusion Is That The Efficacy Of Garlic With Lime Exctract Was Higher Than Chlorhexidine In Decreasing Gingival Bleeding. It Is An Effective Antibacterial Mouthwash On Streptococcus Mutans Counts In Dental Plaque And Saliva.

Jasmine M Aly, Reham M Hamdy, Mahmoud Shalash And Hossam Kandiel,

ABSTRACT
The First Implementation Of Dental CBCT Stitch Module Carried Out In 2010 Paved The Way Towards Wider Range Of Clinical Applications For Small Field Of View (SFOV) And Increased The Affordability Of CBCT Systems. Limited Diagnostic Studies Were Carried Out To Assess The Accuracy Of The Stitch Module. This Study Aimed To Assess The Diagnostic Accuracy Of Stitched Small Field Of View (SSFOV) CBCT In Mandibular Linear Measurements Of Dry Human Mandibles.

Materials and Methods: Fifteen Mandibles Included In The Study Were Marked At 18 Anatomic Sites And Were Identified By Gutta Percha Rodes. Twenty Six Linear Measurements Were Performed Directly Using Digital Caliper For Each Mandible (gold Stander). The Mandibles Were Immersed Under Tap Water For Soft Tissue Simulation. Planmeca Promax 3D MID CBCT Machine Was Used To Scan The Mandibles Using 50 X 80 Mm FOV And 200 ?m Voxel Resolution. Each Mandible Was Scanned 4 Times Sequentially To Cover The Entire Mandible. Stitching Was Conducted To Combine The Scanned Volumes Sequentially To Generate A Full Composite Image Of The Entire Mandible. Planmeca Romexis Viewer 3.5.1R, 3D Software Was Used To Record The Same 26 Linear Measurements. Statistical Analysis: Quantitative Variables Were Described. Normality Hypothesis Of All Quantitative Variables Were Checked For Further Choice Of Appropriate Parametric And Non-parametric Tests. For Inter- And Intra-observer Reliability, Interclass Correlation Coefficients (ICC) Including 95% Confidence Limits Was Used. The Significance Level Was Set At P ? 0.05.

Results: As The Data Showed Normal Distribution, Independent Sample T Test Was Used For Comparing The Direct And The CBCT Linear Measurements. In All Of The Measurements, No Statistically Significance Difference Was Found Between The Direct Linear Measurements And CBCT Linear Measurements. Excellent Inter-observer And Intra-observer Reliability Was Found. Conclusion: Within The Limitations Of This Study, It Can Be Concluded That CBCT Stitch Module Using SSFOV Is An Accurate Tool To Generate A Larger Composite Image Of The Entire Mandible.

Rehab Abdelrahman Elshenawy , Soad Abdelmoniem Abdelmoniem And Fatma Ahmed Hamdy Elshehaby,

ABSTRACT
Objective: This Study Was Conducted To Assess Effectiveness Of Ibuprofen And Paracetamol Versus Placebo On Pain Perceptions During Local Anesthetic Injection And Following Dental Extraction Of Lower Primary Molars In Children. Subjects And Methods: A Randomized Controlled Clinical Trial Was Performed On 156 Apparently Healthy Egyptian Children Who Were Enrolled From The Outpatient Clinic In Pediatric Dentistry And Dental Public Health Department- Faculty Of Dentistry, Cairo University- Egypt. The Participants Were Divided Into Three Groups (52 Patients In Each Group). Each Group Received Specific Type Of Drug 30 Minutes Before Local Anesthetic Administration. The First Group Received Ibuprofen, The Second One Received Paracetamol And The Third Group Received Placebo. Pain Scores During The Injection Of Local Anesthesia And Following Dental Extraction Were Recorded Using The Facial Image Scale (Five-Face Scale). Pain Scores Were Recorded At The 1st, 2nd, 3rd, 4th, 5th, 6th And 24th Hours Following Dental Extraction From Parents By Telephone.

Results: The Use Of Pre-emptive Analgesia As Ibuprofen And Paracetamol Decreased The Pain Scores Significantly Compared To Placebo During Local Anesthetic Administration. Additionally, At The Third, Fourth , Fifth, Sixth And 24th Hours Following The Dental Extractions, The Results Showed Statistically Significant Differences Between The Three Groups With (p?0.001). Conclusion: The Use Of Pre-emptive Analgesia As Ibuprofen And Paracetamol Was Effective In Reducing Pain During Local Anesthetic Administration. Also, Both Ibuprofen And Paracetamol Were Potent And Effective In Reducing Pain Following Dental Extractions After Third, Fourth, Fifth, Sixth And 24th Hours, And There Was No Difference Between Them.

Mohamed A. Elattar, Ahmed H. Khalil And Jihan F. Younis ,

ABSTRACT
Statement Of Problem: Cementation Is A Critical Step That Determines The Success And Longevity Of Indirect Restorations. Cement Dissolution At The Marginal Interface Is One Of The Causes That Leads To Micro Leakage And Diminishes Bond Strength Of The Indirect Restoration Which Leads Eventually To Its Failure. New Bio-active Cement Was Introduced To Overcome That Disadvantage By Re-mineralizing Of The Disintegrated Joint. Due To The Lack Of Data About The Bioactive Cement, It Required Investigation To Assess Its Shear Bond Strength. Aim Of The Study: Is To Evaluate Shear Bond Strength Of Activa Bio-active And Self-adhesive Resin Cement When Bonded To Enamel And Zirconia. Methodology: 20 Extracted Human Mandibular Molars Were Prepared To Produce Flat Enamel Surface. Enamel Samples Were Divided Randomly Into Two Groups, Wet And Dry Where (n=10). Each Subgroup Was Bonded Using Either Self-adhesive Resin Cement As Control Group Or Bioactive Cement (n=5) To Zirconia. Shear Bond Strength Was Examined After Thermo-cycling Using Universal Testing Machine. Mann-Whitney U Test Was Used To Compare Between Wet And Dry Conditions And The Effect Of Different Cement Types. The Significance Level Was Set At P ? 0.05.

Results: Either With Wet Or Dry Enamel There Was No Statistically Significant Difference. Both Cements Showed No Significant Difference When Bonded To Wet Or Dry Enamel. Conclusion: Neither The Different Humid Conditions Nor The Different Cement Types Demonstrated Significant Impact On The Shear Bond Strength Values.

Ahmed Gamal Nassar, Nadia Galal And Ahmed Tarek Elsharkawy,

ABSTRACT


Aim: The Aim Of This Study Was To Assess The Short-term Efficacy Of The Lingual Ring Splint In The Management Of Anterior Disc Displacement With Reduction For The Relief Of Pain And Improving Mandibular Movements. Patients And Methods: Ten Female Patients Diagnosed With DDWR Were Included In This Study. All Patients Received The Lingual Ring Device With Specific Instructions Regarding The Time Of Using It And Exercises. Follow Up Was Made After 1 Week, 1, 2, And 3 Months To Test Pain Score And Mandibular Range Of Motion.

Results: Patients Age Ranged From 19 To 32 Years Old. Pain Score Decreased Significantly After 1 Week, And Again After 1-3 Months. All Mandibular Movements Showed A Statistically Significant Increase In Range After 1 Week, And Again After 1-3 Months. Conclusion: The Lingual Ring Splint Is An Effective Therapy For The Management Of Patients With DDWR. Significant Improvement In Pain Score And Mouth Movements Should Be Noted Within 3 Months Follow Up If The Device Was Used With A Regimen Of This Study.

Engy Saeed El-Khawaga, Dina Soliman Khater And Nermeen Raouf Ameen,

ABSTRACT
Adenoid Cystic Carcinoma (ACC) Is The Third Most Common Malignant Salivary Gland Tumor, Cancer Stem Cells (CSCs) Are Defined Cells Within A Tumor That Possess The Capacity To Self-renew, CD133 (prominin-1) Is An Important Marker To Identify And Isolate CSCs. A Total Of 50 Archival Paraffin-embedded Specimens (10 Normal Salivary Gland Tissues, 10 Tubular, 10 Trabecular, 10 Cribriform And 10 Solid Cases) Were Collected. Sections Were Stained Immunohistochemically By CD133 Antibody And The Area Percent For Its Expression Was Evaluated By The Image Analyzer Computer System, It Was Found ThatCD133 Immunoexpressionhad High Significant Difference In Area Percent Values Between The Control Group And The Different Patterns Of ACC. CD133 Expression Significantly Increased In The Solid Pattern Compared To The Other Patterns. No Significant Difference Was Observed Between The Tubular And The Trabecular Patterns. In Conclusion, CD133 Was Detected In ACC And Its Expression Was Related To Poor Biological Behavior. It Could Be A Promising Target As Regards Anti-CSC Therapy.

Mahmoud M. Fata Maha A. Abu Khadr And Gehan S. Kotry,

ABSTRACT

Objectives: Evaluation Of The Accuracy Of Dental Implant Placement Using Keyless Sleeveless Stererlithographic Surgical Stent. Methodology: The Study Was Designed As A Single Armed Clinical Trial. Ten Endosseous Tapered Implants Were Placed Using Keyless, Sleeveless Stereolithographic Surgical Stents. Postoperative Cone Beam Computed Tomography Was Taken And Superimposed On The Preoperative Virtual Plan To Assess Angular, Horizontal And Vertical Deviations.

Results: Results Showed That Implants Placed With Keyless Sleeveless Surgical Guide Had A Range Of Horizontal Deviation At The Coronal Side (C) Of The Implant Of 0.7-1.9 Mm With An Average Of 1.16 ? 0.4 Mm. Horizontal Deviations At The Apex Of The Implants (Ap) Had A Range Of 0.2-1.46 With An Average Of 0.82 ? 0.43 Mm. Vertical Deviations Of The Implants (V) Had A Range Of 0.1- 1.1mm With An Average Of 0.562? 0.34 Mm. Angular Deviations Between The Long Axis Of The Actual Implants To The Virtual Implants (A) Had A Range Of 0.51- 6.52 Degrees With An Average Of 2.7? 1.95 Degrees.

Conclusions: The Use Of Keyless Sleeveless Stereolithographic Surgical Stents Is A Reliable Method For Transferring Virtual Implant Placement To The Operating Field.

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