Amr Magdy Ibrahim, Maha Wagdy El-Kerdawy And Ahmed Emad Fayyad,

ABSTRACT


Aim: This Study Was Conducted To Compare Between Conventional Heat-cured Poly-methyl Methacrylate (PMMA) Denture And Metal Re-enforced Polyamide Denture In Terms Of Oral Health Related Quality Of Life Using Oral Health Impact Profile For Edentulous Questionnaire, Readings Were Taken At One And Six Months.

Materials and Methods: Fourteen Patients Fulfilling The Eligibility Criteria Were Recruited From The Out-patient Clinic In The Prosthodontic Department, Faculty Of Dentistry, Cairo University. Conventional Steps For Complete Denture Construction Were Done And After Jaw Registration Phase The Patients Were Distributed Randomly Into Two Groups (seven Per Group) Where; The Control Group Received Heat-cured Polymethyl Methacrylate Maxillary And Mandibular Dentures, While The Intervention Group Received Heat Cured Polymethyl Methacrylate Maxillary Denture And Metal Reinforced Polyamide Mandibular Denture.

Results: All Patients Are Satisfied In The Control Group At One And Six Months With Mean Scores (17.71 And 17) Respectively And In The Intervention Group With Mean Scores (23 And 13.28) Respectively. Between The Two Groups There Was A Statistically Significant Difference At One Month Favoring Control Group, While There Was No Statistically Significant Difference At Six Months. Within The Control Group, There Was No Statistically Significant Difference Between One And Six Months. While Within The Intervention Group, There Was A Statistically Significant Difference Favoring Six Months. Conclusion: There Was No Effect Of Time On Oral Health Related Quality Of Life With The PMMA Dentures, While By Time There Was A Better Oral Health Related Quality Of Life With The Metal Re-enforced Polyamide Dentures Between One And Six Months.

Sally M. El Shennawy, Tamer A. Hamza And Ahmed Hassanien Khalil,

ABSTRACT
Statement Of Problem: Recently, Hybrid Ceramics Introduced Having Advantages Of Being Easily Processed And Time Saving. However, There Are Still Concerns About Marginal Accuracy With Different Finish Line Curvatures.

Purpose: The Purpose Of This In Vitro Study Was To Evaluate The Effect Of Two Finish Line Curvatures And Types Of Ceramic On Margin Fit Of Monolithic Restorations. Methodology: A Total Of 20 Monolithic Crowns Was Fabricated For This Thesis And Was Divided Into Two Groups According To Ceramics (Polymer Infiltrated Ceramics, Lithium Disilicate), And Each Group Will Be Further Subdivided Into Two Groups According To Finish Line Curvature (0mm And 3mm).The Crowns Was Placed On The Stainless Steel Dies And The Vertical Marginal Fit Was Evaluated With Sterio Digital Microscope At An Original Magnification Of X 30. The Results Were Tabulated And Statistically Analyzed With Using Kolmogorov-Smirnov And Shapiro-Wilk Tests. Kruskal-Wallis Test Was Used To Compare Between The Two Ceramic Types. Dunn?s Test Was Used For Pair-wise Comparisons When Kruskal-Wallis Test Is Significant. Mann-Whitney U Test Was Used To Compare Between The Two Finish Line Types.

Results: With Straight Finish Line; Lithium Disilicate Showed Statistically Significantly Higher Mean Marginal Gap Distance Than Polymer Infiltrated Ceramics. With Curved Finish Line; There Was No Statistically Significant Difference Between The Two Ceramic Types. In Addition, With Both Ceramic Types; There Was No Statistically Significant Difference Between The Two Finish Line Types.

Conclusions: Under The Circumstances Of This In Vitro Study, It Can Be Concluded That; The Polymer Infiltrated Ceramics Hybrid Restorations Had Superior Marginal Fit Than Lithium Disilicate And The Finish Line Curvatures Did Not Affect The Marginal Fit Of Tested Restorations. Clinical Implications: In The Light Of The Present Study; All Tested Samples Produced Marginal Fit Within Acceptable Range, So Can Be Used Clinically Providing Satisfactory Results.

Marianne Azer Fouad , Essam Adel Aziz And Ahmed Emad Fayyad ,

ABSTRACT
A Total Of 20 Single Mandibular Dentures Were Constructed, The Study Compared The Mandibular Single Denture Made Of Polymethyl Methacrylate Lined With Soft Liner Versus Mandibular Single Denture Made Of Flexible Material Regarding Patient Satisfaction.

Azza Mahmoud Sami El-sherif, Shereen Adel Amin And Carl Hany Halim,

ABSTRACT
The Aim Of This Study Was To Evaluate The Effect Of Fiber Post-head Surface Treatment On Its Retention To Two Composite Core Materials Cured With Two Curing Modes (light And Dual Polymerization).

Materials and Methods: A Total Number Of 30 Fiber Posts Were Used In This Study. Their Parallel Coronal Part Was The Part Mainly Used As We Test The Push Out Bond Strength Between Post Surface And Core Material. Posts Were Divided Into 3 Groups According To The Surface Treatment Each Containing 10 Posts: Group1: No Treatment (control), Group2: Air Abrasion (sandblasting) And Group3: Tribochemical Silica Coating (cojet). Silane Was Applied On All Posts Surface Following Surface Treatment As Indicated By The Post Manufacturer. The Groups Were Further Subdivided According To The Curing Mode Of The Composite Used To Build Up The Core Either Dual-cured Subgroup Or Light-cured Subgroup. Each Subgroup Contained 5 Posts.

Results: The Results Show That Curing Mode And Crown Region Have A Statistically Significant Effect On Mean Push-out Bond Strength. Surface Treatment Protocols As Well As The Interaction Between The Three Variables Have No Statistically Significant Effect On Mean Push-out Bond Strength. Since The Interaction Between The Variables Is Non-significant, So The Variables Are Independent From Each Other.

Yasmein Maher El-beblawy And Maha Eshaq Amer Mohamed,

ABSTRACT
Objective The Aim Of This Study Was To Assess Chronic Inflammatory Conditions Of Major Salivary Glands By Shearwave Elastography. Patients And Methods 21 Patients With Chronic Inflammatory Conditions Of Major Salivary Glands And 21 Healthy Adult Volunteers Were Included In This Study. All Participants Underwent B-mode Sonography And Shearwave Elastography. The Diagnostic Performance Of Shearwave Velocity Was Evaluated By Sensitivity And Specificity At The Optimum Cutoff Point And The Area Under The Receiver Operating Characteristic Curve. Results Cases Showed Statistically Significantly Higher Median Shearwave Velocity Of Parotid Gland Than Control Group (P-value = 0.022, Effect Size = 1.119). There Was No Statistically Significant Difference Between Median SW Velocity Of Submandibular Gland In The Two Groups (P-value = 0.216, Effect Size = 0.576). As Regards The Total Scores; Cases Showed Statistically Significantly Higher Median Scores Than Control Group (P-value <0.001, Effect Size = 1.301). At Cut-off Value Of (23.5), Shearwave Velocity Showed 78.6% Diagnostic Accuracy With A Sensitivity Of 81% And Specificity Of 76.2% With 0.819 Area Under The Curve Of Receiver Operator Characteristics And Confidence Interval Was 0.669-0.920. Conclusion Shearwave Elastography Technique Might Be A Useful Noninvasive Strategy For Assessment Of Salivary Glands In Chronic Inflammatory Conditions.

Khaled I Barakat And Diaa El Saied,

ABSTRACT
Temporomandibular Joint Diseases Are Common And One Of The Most Important Methods Of Modern Treatment Are Arthroscopy, Which Many Scientists Since The Use And Until Now Go To Develop In The Techniques Used For It. The Aim Of This Study Is To Confuse The Results Of The Use Of Coblation Devices In The Operations Of TMJ Disc Release. The Study Was Conducted On The Number Of 12 Patients Who Were Diagnosed By Research Diagnostic Criteria For TMJ And Arthroscopic Surgery To Release Disc And Place In Proper Anatomic Position Then Follow Up For 2 Months. Our Results Show That Highly Success Rate 91.6% With Increase In Jaw Function. We Conclude That Coblation Give An Effective Results For Arthroscopic Joint Surgery.

Marco Malak Fayek, Maha Eshak Amer And Ahmed Mohamed Bakry,

ABSTRACT


Purpose: Evaluate The Prevalence Of Posterior Superior Alveolar Canal By Cone Beam Computed Tomography In A Sample Of Egyptian Population

Materials and Methods: CBCT Radiographs Of 600 Maxillary Sinuses Of 304 Males And 296 Females Patient With Mean Age Of 34.5 Years Were Examined For Presence Or Absence Of The Posterior Superior Alveolar Canal Along The Lateral Wall Of The Maxillary Sinus Among The Sample.

Results: The Posterior Superior Alveolar Canal Could Be Detected In 92% Of The Cases .

Conclusions: Cone-beam Computed Tomography Is Valuable Tool In Evaluation And Localization Of The Posterior Superior Alveolar Canal Before Maxillary Sinus Lift Surgery To Avoid Bleeding During Surgery.

Ibrahim Mohamed Abd Elwahab, Samia Mustafa El Azab, Amr Helmy Moustafa El Bolok And Hanan Eid Gamal,

ABSTRACT
Background: Curcumin And Nanocurcumin Have Effective Cytotoxic Anticancer Properties And Have Been Used For Treatment Of Variety Of Malignancies. The Aim Of The Current Study Is To Investigate The Effect Of Curcumin And Nanocurcumin On Squamous Cell Carcinoma Cell Line (HEP-2) After 24 Hours. Material& Method: Treatment Of Cell Line (HEp-2) By Different Concentrations Of Curcumin And Nanocurcumin Was Done To Assess The Viability Of The Treated Cells To Determine The Percentages Of Viable Cells That Was Monitored Using MTT Assay.

Results: The Mean Viability Percentage Of Curcumin Treated Cells (in Relation To Control Cells) Increased From 8.57% To 98.57% As Curcumin Concentration Decreased From 10000mM To 5mM With An IC50 Of 40.However, The Cytotoxic Effect Of Nanocurcumin Treated Cells Increased From 17.08% To 97.84% As Nanocurcumin Concentration Decreased From 10000mM To 5mM With An IC50 Of 77. Morphometric Analysis Showed A Decrease In Nuclear Area Factor (NAF) Which Is An Indicator Of Apoptosis As Concentrations Increased. The Results Were Statistically Significant. Conclusion: Curcumin And Nanocurcumin Have A Significant Anticancer Effect On Hep-2 Cell Line.

Alghamdi F*, Alhazzazi T , Al-Hazmi N, Naguib G, Sindi A And Bukhary S,

ABSTRACT


Introduction: This Study Was Carried Out To Investigate The Impressions And Perceptions Of Non-smoking Students Toward The Habit, How They Feel Toward Attempts To Reduce The Effect Of The Habit In School, And How Loved Ones Who Smoke Affect Their Decision To Start The Habit. Methods: At The King Abdulaziz University Faculty Of Dentistry, Questionnaires Were Distributed For Self-administration To 500 Students (250 Male) Who Were In Their 2nd To 7th Year. Response Rate Was 77.2%. Data Analysis Included Simple Descriptive Statistics In The Form Of Percentages, Frequency Distributions, And Bar Graphs; Statistical Significance Was Determined Using Cross Tabulation.

Results: The Prevalence Of Students Who Never Smoked Was 80.8% (31.1% Of Which Were Male). Of Them, 79.2% Stated They Did Not Feel Pressured To Start The Habit. The Primary Reason For Refusing To Smoke Was Health Reasons (46.8%), And 82.1% Were Very Confident In Stating They Will Never Start Smoking. Of These, Many (75%) Were Aware Of The Effects Of Second-hand Smoke, And Of Those, 88.5% Agreed To A Decisive Reduction In Second-hand Smoke Exposure In The School.

Conclusions: Our Findings Suggest That The Perceptions Of Nonsmokers About Abstaining From The Habit Are More Positive Than Those Of Smokers. Nonsmokers Were More Likely Than Smokers To Be Viewed As Having Good Judgment And Were Affected By The Smoking Habits Of Loved Ones.

Mostafa Ali, Salma El-Ashry And Amira Galal,

ABSTRACT


Aim: The Purpose Of This Study Is To Compare The Apical Extrusion Of Debris Between Reciprocating Single File System WaveOne Gold And Rotational Multi File System Protaper Gold

Materials and Methods: Forty Eight Lower Central Incisors With Single Straight Canal Were Selected To Assess The Apical Extrusion Of Debris After Instrumentation Using Manual File, WaveOne Gold And Protaper Gold. Samples Were Divided Into Three Groups (n=16) According To The Instrument Used For Preparation. The Extruded Debris Was Collected In Preweighted Eppendorf Tube. Data Were Statistically Analyzed Using One-way ANOVA And Tukey?s Post-hoc Test.

Results: The Least Amount Of Debris Were Obtained With WaveOne Gold Instrument. However There Was No Statistically Significant Difference Between WaveOne Gold And Protaper Gold In Apical Extrusion Of Debris. Manual Files Extruded Significantly The Greatest Amount Of Debris. Conclusion: Regardless The Limitations Of This Study, Results Indicate Slight Advantages For WaveOne Gold Reciprocating Single File System Over Protaper Gold Rotational Multi File System In The Amount Of Apically Extruded Debris.