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Effects Of Different Tooth-Conditioning Agents On Bond Strength Of A Resin-Modified Glass-Ionomer Cement To Enamel, Ahmed Alammary
Effects Of Different Tooth-Conditioning Agents On Bond Strength Of A Resin-Modified Glass-Ionomer Cement To Enamel, Ahmed Alammary
Al-Azhar Journal of Dentistry
The purpose of this study was directed to evaluate the effects of different toothconditioning agents on shear bond strength of resin-modified glass– ionomer cement(Fuji III LC) to enamel as well as on dissolution of calcium ions from the enamel surfaces.Methods. The enamel surfaces of lower incisors were treated with 10 and 20%polyacrylic acid, 12% citric acid and 35% phosphoric acid for 20s. Fuji III LC wasapplied to the etched enamel surfaces, and the shear bond strength of each specimenwas measured using an Instron Universal Testing Instrument. The amounts of calciumions dissolved from the treated enamel surfaces were also measured using …
Comparison Between Two Types Of Feeding Obturators In Cleft Palate Babies, Ehab Atito
Comparison Between Two Types Of Feeding Obturators In Cleft Palate Babies, Ehab Atito
Al-Azhar Journal of Dentistry
Abstract: This article compares clinical function rehabilitation of two different types of feeding device 1. Ready made obturator & 2. Custom obturator. Material and methods: 10 neonates baby reported to the Department of Pediatricsdepartment alhammadi hospital KSA with congenital cleft palate will be selected for study. Feeding device will be constructed for each baby & readymade feeding bottle will be getting. Comparison between both is done by fixing volume & measuringfeeding time
Relationship Of Facial Measurement For Determining The Vertical Dimension In Young Adult Saudi Students, Nehad Harby
Relationship Of Facial Measurement For Determining The Vertical Dimension In Young Adult Saudi Students, Nehad Harby
Al-Azhar Journal of Dentistry
There is no specific scientific method for determining the correct edentulous occlusal vertical dimension. In this study, the establishment of the proportion between the ear-eye to chin-nose distance to determine occlusal vertical dimension.200 dentulous Saudi students participated in this study. The chin-nose and eareye (right & left) distances were measured; the results showed that there is a correlation between these measurements; also this study showed that this facialmeasurement may be used to predict chin-nose distance and determining occlusal vertical dimension in edentulous patients of the Saudi population in combination with some other methods, which have proved to be helpful
The Diagnosis Of Neuromuscular In Orthodontics Effects Of Tens On The Antero-Posterior Maxilla-Mandibular Relationship, Yasser Thabet, Abumadyan Aqrabe, Redwan Alaslmy, Mohamed Mohamed
The Diagnosis Of Neuromuscular In Orthodontics Effects Of Tens On The Antero-Posterior Maxilla-Mandibular Relationship, Yasser Thabet, Abumadyan Aqrabe, Redwan Alaslmy, Mohamed Mohamed
Al-Azhar Journal of Dentistry
Objective:This study was conducted in order to assess the changes in the occlusal position of the mandible after ULF (Ultra Low Frequency)- TENS relaxing procedure in subjects in pubertal growth phase with diagnosed Angle Class II division I and mandibular dentoalveolar retrusion. Materials and methods: This study was performed on 70 patients (48 females,22 males) with an Angle Class II division I, aged between 10 and 15 years old (mean age 12.26, SD 1.32) characterized by mandible dentoalveolar retrusion and optimal vertical facial dimension, diagnosed by clinicaland cephalometric evaluation. Diagnostic neuromuscular registrations were made for all subjects. The casts were …
The Effect Of Using Ultra Suction System On Mandibular Complete Denture Retention, Fatma Sayed, Mohamed Sanad, Ola Omar, Hanaa Youssef
The Effect Of Using Ultra Suction System On Mandibular Complete Denture Retention, Fatma Sayed, Mohamed Sanad, Ola Omar, Hanaa Youssef
Al-Azhar Journal of Dentistry
Aim of the study: This study was carried out to evaluate the effect of using ultra suction system on mandibular complete denture retention and on the rate of growth of candida albicans. Material and methods: Ten completely edentulous patients participated in this study. Each patient recived two dentures a conventional mandibular denture(D1 denture) constructed using heat cured acrylic resin and an ultra suction retained denture (D2 denture) which was constructed using heat cured acrylic resin with ultra suction system added to it. Patients were left to function with each denture set for a period one week, one month, three months …
The Effect Of Siwak And Brushing On Cariogenic Bacteria And Surface Characteristics Of Enamel And Two Brands Of Resin Composite (An In Vitro Study)*, Shahenda Abdullah, Maha Niazy, Inas Motawea
The Effect Of Siwak And Brushing On Cariogenic Bacteria And Surface Characteristics Of Enamel And Two Brands Of Resin Composite (An In Vitro Study)*, Shahenda Abdullah, Maha Niazy, Inas Motawea
Al-Azhar Journal of Dentistry
Purpose: The aim of this study was to evaluate the effect of siwak extract and toothbrush using two brands of toothpaste one containing siwak extract and one without on the cariogenic bacteria and surface characteristic of enamel and two types of composite resin. Materials and Methods: A total of 90 specimens were used in the present study. The specimens were divided into three groups according to the type of material used (n=30); Enamel specimens, Feltk Z350 specimens, and Tetric-N-Ceram Specimens. Each group was further subdivided into 3 subgroups according to the methodof treatment (n=10); specimens treated with Siwak sticks, specimens …
Effect Of Food Simulating Liquids And Thermo-Cycling On Flexural Strength And Surface Hardness Of A Resin Nano-Ceramic Cad/Cam Material, Ahmed Sayed, Maha Niazy, Inas Motawee
Effect Of Food Simulating Liquids And Thermo-Cycling On Flexural Strength And Surface Hardness Of A Resin Nano-Ceramic Cad/Cam Material, Ahmed Sayed, Maha Niazy, Inas Motawee
Al-Azhar Journal of Dentistry
Purpose: Evaluate the effect of food simulating liquids and thermocycling on miniflexural strength and surface micro-hardness of a resin nano-ceramic material (Lava Ultimate) compared to indirect laboratory composite resin material (Nexco Paste) and direct composite resin material (Filtek Z350 XT).Material and Methods: A total number of 180 samples were fabricated. The samples were divided equally into 3 groups (n=60). Group 1 (M1) samples were fabricated from the resin nano ceramic CAD/CAM blocks (Lava Ultimate), group 2 (M2) samples were farbricated form indirect micro-hybrid resin composite (Nexco Paste), while group 3 (M3) samples were fabricated from direct resin composite (Filtek Z350 …
Evaluation Of The Antimicrobial Effect Of Propolis Extract On Oral Microflora, Safaa El-Sayed, Samy El-Bayoumy, Mohamed Mostafa, Magda El-Malt
Evaluation Of The Antimicrobial Effect Of Propolis Extract On Oral Microflora, Safaa El-Sayed, Samy El-Bayoumy, Mohamed Mostafa, Magda El-Malt
Al-Azhar Journal of Dentistry
Aim: This study was conducted to evaluate the antimicrobial effect of propolis extract with different dilutions when applied as mouth wash in vivo against a known antiseptic agent (0.2%Chlorhexidine) . Material and Methods: Ninety children were selected for this study. All children were examined clinically for dental caries and used to evaluate the antimicrobial effect of studied materials. The childern were divided equally into two groups (fourty five in every group). In the first group childern were instructed to rinse with 3 ml of propolis extract for specific time and divided into three sub groubs while in the other group …
The Effect Of Some Common Children’S Drinks On Color Stability Of Nanocomposite And Nanoglass Ionomer, Arwa Ali, Maha Niazy, Magda El Malt
The Effect Of Some Common Children’S Drinks On Color Stability Of Nanocomposite And Nanoglass Ionomer, Arwa Ali, Maha Niazy, Magda El Malt
Al-Azhar Journal of Dentistry
The purpose of this study was to evaluate the effect of some common children’s drinks on color stability of nanocomposite and nanoglass ionomer. A hundred test specimens of two restorative materials (Filtek Z350; 3M and Ketac N100; 3M wereprepared using a Teflon mold (8x2 mm). Baseline measurements of color and surface roughness of each specimen were made and specimens (n=10) were immersed in 5 groups: G1: orange juice, G2: guava juice, G3: Strawberry milk; G4: Chocolate milk, and G5: Distilled water (control. Final measurements of color and surface roughness were performed and the results submitted to statistical analysis (2-way ANOVA, …
Effect Of Laser Treatment, Self-Adhesive Resin Cement Brand And Thermocycling On Push Out Bond Strength Of Fiber Reinforced Post, Mariem Abu El-Nour, Eman Essam, Mohsen Nour Eldeen, Ahmed Abbas
Effect Of Laser Treatment, Self-Adhesive Resin Cement Brand And Thermocycling On Push Out Bond Strength Of Fiber Reinforced Post, Mariem Abu El-Nour, Eman Essam, Mohsen Nour Eldeen, Ahmed Abbas
Al-Azhar Journal of Dentistry
The interface between the adhesive resin and fiber posts has an important role in their performance. However, It was found that the most frequent cause of their failure is debonding at the adhesive resin-dentin interface. The aim of the present study was to evaluate the effect of laser treatment: Erbium, Diode or no treatment; and two brandsof self-adhesive resin cement: hydrophobic (Smartcem2) and conventional (Breeze); in addition to the effect of thermocycling on push out bond strength of Glassix fiber- reinforced composite post. A total of ninety- six freshly extracted natural human teeth were equally divided into three main groups …
Effect Of Different Doses Of Power Horse Energy Drink On Submandibular Salivary Glands Of Albino Rats, Abeer Mohamed, Mona Farid, Heba Adawy, Marwa El-Shiekh
Effect Of Different Doses Of Power Horse Energy Drink On Submandibular Salivary Glands Of Albino Rats, Abeer Mohamed, Mona Farid, Heba Adawy, Marwa El-Shiekh
Al-Azhar Journal of Dentistry
Objective: The aim of this study is to investigate histological the effect of power horse energy drink intake with different doses on the submandibular salivary glands of albino rats. The possible modulated recovery of expected adverse effects from the different doses of the taken power horse energy drink. Materials and Methods: Sixty five adult male albino rats (weighing 180-200 grams) were divided equally into seven groups. Group I (control), group (IIA,IIIA&IVA) which received a daily different dose power horse energy drink using an oro-pharyngeal metallic curved tube for 8 weeks then sacrified and group(IIB,IIIB&IVB)which left alive with stoppage of beverage …