نظام مواقع التدريسيين

Comparison of Shear Bond Strength of Translucent Zirconia Veneers Bond to Enamel among Different Light Intensity (An in Vitro Study)

الباحث الأول: Sattar Hmedat1

الباحثين الآخرين: Zuha Ayad Jaber1, Salah Mahdi Ibrahim2

المجلة: Indian Journal of Forensic Medicine & Toxicology,

تاريخ النشر: None

مختصر البحث:

Abstract Objectives: the cosmetic dentistry request to increase the duration of veneers and crowns to the tooth structure, which increase the cosmetic translucent zirconia duration. Aims: the research objective is to Contrast of shear bond strength…

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Comparison of Shear Bond Strength of Composite to Composite Bond in Increment Technique (An in vitro study)

الباحث الأول: Sattar J. Abdul-Zahra Al Hmedat*

الباحثين الآخرين: Zuha Ayad Jaber

المجلة: Journal of Dental and Oral Health

تاريخ النشر: None

مختصر البحث:

Abstract Objective: Bonding composite to composite restorations in increment technique. The objective of this in vitro study was to determine the best procedure and bond to inhancing the bond between two incremente composite, by measuring shear b… Abstract Objective: Bonding composite to composite restorations in increment technique. The objective of this in vitro study was to determine the best procedure and bond to inhancing the bond between two incremente composite, by measuring shear bond strength between two new incremente composites, surfaces were treated with a bonding agent (Bond Universal [3M ESPE]), mechanical retention by roughening surface with diamond bur and air isolation of cured composite. Methods: Four groups and each group composed of 20 composite blocks The block prepared at dimension: (3, 3, 2 mm) made from 3M ESPE Nano Hybrid Z 250XT. First group: Oxygen -polymerization inhibited specimens (20 block). Second group: Inhibition formed of Oxygen - polymerization inhibited specimens (20 block) by using celluloid strip. Third group: all in one adhesive system (one bottle\self etching 3M ESPE single bond universal adhesion material which contained silane) specimens (20 block) Four group: grinding specimens (20 block) of composite by diamond bur. Using The VALO Cordless curing light has multi-wavelength (395 - 480nm) Light Emitting Diode (LED). Results: Experimental shear bond strengths Direct group 32.14 ± 1.148 (Mpa), Bond group 30.75 ± 1.854 (Mpa), celluloid Strip group 13.73 ± 1.301 (Mpa) and Grinding group 19.67 ± 1.919 (Mpa). The higher shear bond strength in direct and bond groups and non significant with lowest mean result of strip and grinding groups. was used to analyze data. One way ANOVA (F-test) was used to detect the significant differences between groups. L.S.D was used to compare mean differences between each two groups (multiple comparison). P≤0. 01 was considered to be significant at 1%. Conclusions: Depending on the mechanical property being tested, group treatments with all in one adhesive system (one bottle\self etching 3M ESPE single bond universal adhesion material and direct group produced different results. produced more consistent results than grinding and celluloid groups.

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Comparison of the shear bond strength between composite resin and enamel among different bonding procedure’s applications

الباحث الأول: Sattar Jabbar Abdul-Zahraa Al-Hmedata

الباحثين الآخرين: Wurood Hashim Majeed Al-Ameedeea |Zuha Ayad Jabera Salah M. Ibrahim

المجلة: Journal of Medicinal and Pharmaceutical Chemistry Research

تاريخ النشر: 10 يناير، 2025

مختصر البحث:

In dentistry, establishing a permanent bond between resin and tooth structure is essential for successful tooth restoration. While various factors affect bond strength, adhesive application time is often overlooked. This study investigated how the a…

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The Effect of Enamel Roughness with Different Burs Preparation on The Adhesion of Resin Composite by Eighth-Generation Bonding Agent

الباحث الأول: Sattar Jabbar Abdul-Zahra Al Hmedat

المجلة: Frontline Medical Sciences and Pharmaceutical Journal

تاريخ النشر: 26 مايو، 2025

مختصر البحث:

OBJECTIVE The aim study to evaluates the effect of different diamond bur roughness on the shear bond strength of resin-based composite to the enamel superficial microroughness This may affect adhesion by modifying the substrates' characteristics …

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An Evaluation of Bacterial Inhibition on E-max and Zirconia Disks after Different Surface Treatments: A Comparative In vitro Study

الباحث الأول: Zahraa Abdulaali Al-Ibraheemi

الباحثين الآخرين: Zanbaq Azeez Hanoon1 , Amal Qasim Ahmed3 , Sattar Jabbar Abdul-Zahra Al-Hmedat Salah M. Ibrahim2, *and Abtesam Imhemed Aljdaimi4

المجلة: The Open Microbiology Journal

تاريخ النشر: 25 إبريل، 2025

مختصر البحث:

Abstract: Background: Comprehending how bacteria adhere to different materials is essential for ensuring the long-term success of dental restorations. Various types of ceramic dental materials with distinct chemical and mechanical properties have…

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Histological Study to Evaluate the Effect of Local Application of Myrtus Communis Oil on Alveolar Bone Healing in Rats

الباحث الأول: Salah M. Ibrahim1

الباحثين الآخرين: Sattar Jabbar Abdul-Zahra Al-Hmedat2

المجلة: The Open Dentistry Journal

تاريخ النشر: 18 يونيو، 2024

مختصر البحث:

Abstract: Background: Reproving dental defects is still a significant problem in dentistry. Bone is a highly vascularized tissue that is reliant on maintaining skeletal structure. The medicinal properties of healthy and preventative herbs were re… Abstract: Background: Reproving dental defects is still a significant problem in dentistry. Bone is a highly vascularized tissue that is reliant on maintaining skeletal structure. The medicinal properties of healthy and preventative herbs were recognized by both the ancient and modern pharmacists and doctors in medicine. The effects of Myrtus communis oil (M) are employed as a healing agent for bone loss with anti-inflammatory and antioxidant properties. The advantage of Myrtus communis oil (M) is that it is a form of osteoconduction in the process of bone healing, decreases pain, and decreases the length of time needed for bone healing. Aim: to identify the effectiveness of Myrtus communis oil's local application in healing bone defects; the author performed a histological analysis. Materials and Methods: This study involved 12 albino male rats weighing (300-400) grams, aged (6-8) months. The animals were subject to a surgical operation on the alveolar bone. The group of animals was divided into two distinct categories based on the applicable materials. Control group: 6 rats; bone defect was only washed by normal saline, and bone defect was left to heal normally. Myrtus communis group: 6 rats; bone defect treated by local application of 1 μl of Myrtus communis oil (M). The rats were sacrificed 7 and 14 days after surgery (six rats for each period). All bone sections stained with hematoxylin and eosin underwent a light microscope histological inspection, which included counting the number of bone cells (osteoblasts, osteocytes, and osteoclasts) and evaluating the results of histomorphometric analysis. Results: Histological and histomorphometric findings of the present study show the acceleration of bone defect healing process in the Myrtus communis group as the increase in mean count difference measured of osteoblast, osteocyte, and osteoclast with statistically significant in 7 days duration. The result shows the positive expression of osteoblast, osteocyte, and osteoclast in all groups, with the highest statistical difference in osteocyte mean number in the Myrtus communis group. Conclusion: Myrtus communis oil (M) has the potential to promote and be an effective therapeutic for the bone injury healing process. Keywords: Myrtus communis oil, Hematoxylin and eosin stain, Histomorphometrical analysis, Osteocyte, Osteoblast, LSD test.

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Effect of autoclave sterilisation and heat activated sodium hypochlorite irrigation on the performance of nickel-titanium rotary files against cyclic fatigue

الباحث الأول: Zuha Ayad Jaber

الباحثين الآخرين: Sattar Jabbar Abdul-Zahra Al-Hmedat , Sarmad Adel Hameed , Suhad Jabbar Hamed Al-Nasrawi , Abtesam Imhemed Aljdaimi & Julfikar Haider

المجلة: Advances in Materials and Processing Technologies

تاريخ النشر: 25 نوفمبر، 2020

مختصر البحث:

ABSTRACTThe present study aims to assess the impact of heat- activated sodium hypochlorite (NaOCl) and/or autoclave sterilisation on the cyclic fatigue resistance (CFR) of heat-treated nickel- titanium rotary files used in root canal treatment. T…

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COMPARISON OF CYCLIC FATIGUE AMONG PROTAPERGOLD, ONE CURVE, WAVE ONE® GOLD AND VDW BLUE FILES

الباحث الأول: Sattar J. Abdul-Zahra Al Hmedat*

الباحثين الآخرين: Zuha Ayad Jaber and Suhad Jabbar Al-Nasrawi

المجلة: Biochem. Cell. Arch. Vol. 19, No. 1, pp. 1309-1312, 2019

تاريخ النشر: None

مختصر البحث:

AbstractABSTRACT : The reciprocating file program was claimed the resistance be increased to fatigue in evaluation with the rotation file program.Newly 2 new kinds of NiTi files have been marketed one curve file and VDW blue. The purpose of this s…

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A Comparison of Vertical Marginal Fit of different Brands of Translucent Zirconia Crown Restorations

الباحث الأول: Sattar J. Abdul-Zahra Al Hmedat, B.D.S., M.Sc. (1)

الباحثين الآخرين: لايوجد

المجلة: J Bagh College Dentistry

تاريخ النشر: None

مختصر البحث:

ABSTRACT Background: As the development of zirconia crown using CAD/CAM technology, the usage of full zirconia crown is gradually increased. The aim of this in-vitro study was to evaluate and contrast the vertical marginal fit of single allceramic…

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A comparison of fracture strength among different brands of translucent zirconia crown restorations

الباحث الأول: Dr. Sattar J. Abdul-Zahra Al Hmedat* B.D.S, M.Sc. Department of conservative Dentistry, College of Dentistry, University of Kufa, Najaf, Iraq.

الباحثين الآخرين: Dr. Zuha Ayad Jaber B.D.S., M.Sc. Department of conservative Dentistry, College of Dentistry, University of Kufa, Najaf, Iraq. DR. Adel F. Ibraheem B.D.S, M.Sc. Department of Conservative Dentistry, College of Dentistry, University of Baghdad, Baghdad, Iraq.

المجلة: Journal of Biology, Agriculture and Healthcare

تاريخ النشر: None

مختصر البحث:

Abstract: Objectives: As the development of translucent zirconia crown using CAD/CAM technology, the usage of full zirconia crown is gradually increased. The purpose of this study was to investigate the highest fracture strength of translucent zi…

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A comparison of vertical marginal fit of three different types of all ceramic crown restorations (An In vitro study)

الباحث الأول: Adel F. Ibraheem

الباحثين الآخرين: Sattar J.A. Hmedat

المجلة: Journal of Gene c and Environmental Resources Conserva on, 2015, 3(1):84-92.

تاريخ النشر: None

مختصر البحث:

The objective of this in vitro study was to evaluate and compare the vertical marginal fit of crowns fabricated with three different techniques: ZrO2 CAD/CAM,ZO2; copy-milling machine and Lithium disilicate pressable ceramic, before and after porc…

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البحوث المنشورة

Comparison of Shear Bond Strength of Translucent Zirconia Veneers Bond to Enamel among Different Light Intensity (An in Vitro Study)

Comparison of Shear Bond Strength of Composite to Composite Bond in Increment Technique (An in vitro study)

Comparison of the shear bond strength between composite resin and enamel among different bonding procedure’s applications

The Effect of Enamel Roughness with Different Burs Preparation on The Adhesion of Resin Composite by Eighth-Generation Bonding Agent

An Evaluation of Bacterial Inhibition on E-max and Zirconia Disks after Different Surface Treatments: A Comparative In vitro Study

Histological Study to Evaluate the Effect of Local Application of Myrtus Communis Oil on Alveolar Bone Healing in Rats

Effect of autoclave sterilisation and heat activated sodium hypochlorite irrigation on the performance of nickel-titanium rotary files against cyclic fatigue

COMPARISON OF CYCLIC FATIGUE AMONG PROTAPERGOLD, ONE CURVE, WAVE ONE® GOLD AND VDW BLUE FILES

A Comparison of Vertical Marginal Fit of different Brands of Translucent Zirconia Crown Restorations

A comparison of fracture strength among different brands of translucent zirconia crown restorations

A comparison of vertical marginal fit of three different types of all ceramic crown restorations (An In vitro study)