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Article
Fluoride ions release study of different GIF materials

Author: Raid F. Salman
Journal: Journal of baghdad college of dentistry مجلة كلية طب الاسنان بغداد ISSN: 16800087 Year: 2006 Volume: 18 Issue: 3 Pages: 26-29
Publisher: Baghdad University جامعة بغداد

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Abstract

ABSTRACT
Background: The purpose of this in vitro study was to compare & measure the release of fluoride ions from set tested materials, CGI (Pro-med), MGI (Ketac molar), and LCGI (Vitremer).
Materials & Methods: The tested materials were made as molds with certain dimensions and each mold was placed in vial containing 100 ml. of DDW. Every 24 hrs, 5 ml. of the solution was transferred into smaller tubes to measure the fluoride release using spectrophotometer. This procedure was repeated every 24 hrs. for 14 days.
Results: The results revealed that the CGI (conventional glass ionomer) had higher release over other materials, then the MGI (modified glass ionomer) material, and finally the LCGI (light cure glass ionomer) with significant differences between them at P< 0.05.
Conclusions: The MGI material had higher fluoride ions release concentrations over the LCGI. However, the CGI had higher fluoride ions release concentrations over other materials.
Keywords: Glass ionomer, fluoride release, filling materials. (J Bagh Coll Dentistry 2006; 18(3)26-29)

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Article
Obturation of internally prepared cavities (simulating internal resorption) with three different techniques
امتلاء التجاويف المعدة داخليًا (محاكاة الارتشاف الداخلي) بثلاث تقنيات مختلفة

Authors: Raid F. Salman --- Media A. Saeed
Journal: Zanco Journal of Medical Sciences مجلة زانكو للعلوم الطبية ISSN: 19955588/19955596 Year: 2011 Volume: 15 Issue: 2 Pages: 21-28
Publisher: Hawler Medical Univeristy جامعة هولير الطبية

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Abstract

Background and objectives:There is controversy as to which instrumentation and/or obturation techniques to choose for the treatment of the internal resorption defects. This in vitro study compared the instrumentation and obturation quality of simulated internal resorption cavities (IRC) with 3 different techniques.Methods:Ninety extracted human roots were used and sectioned transversely 5 mm from the apex and hemi-circular cavities were prepared in both sections. The sections were glued back together using superglue and embedded in plaster mold, thus obtaining root canals with cavities simulating internal resorption. The samples were randomly divided into 3 groups of 30 roots and instrumented by pro-taper rotary files, hybrid technique, or step-back technique, then each group subdivided into three subgroups of 10 roots and obturated with cold lateral condensation, warm vertical compaction, or injectable thermo-plasticized technique. After obturation, the samples were radio-graphed in Bucco-lingual and Mesio-distal view. After that, the plaster molds were removed, and the samples were then sectioned at the previous level and the quality of the obturation of the IRC were viewed under stereomicroscope.Results: There was highly significant difference between pro-taper rotary files compared with hybrid and step-back techniques. The results of obturation techniques radiographically and by stereomicroscope showed that there was highly significant difference in between injectable thermo-plasticized compared with other two techniques.Conclusion:The pro-taper rotary files and injectable thermo-plasticized technique gave the best results for treatment of simulated internal resorption cavities (IRC).


Article
Stereomicroscopic evaluation of the adaptability of different retro filling materials (in vitro study)

Authors: Raid F. Salman --- Abdul Munaim S. AL-Khafaji
Journal: Journal of baghdad college of dentistry مجلة كلية طب الاسنان بغداد ISSN: 16800087 Year: 2008 Volume: 20 Issue: 2 Pages: 45-49
Publisher: Baghdad University جامعة بغداد

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Abstract

ABSTRACT
Background: The purpose of this in vitro study was to evaluate the marginal interfaces between tooth structure and the retrofilling materials.
Materials & Methods: Thirty teeth were divided into six groups of five for each. The teeth were instrumented to a minimum of size no. 45 k-file, obturated with gutta percha, resected perpendicular to their long axes and prepared to receive a retrofilling. The teeth were filled with amalgam, glass ionomer cement or chemical-cured composite resin. Each filling material was either applied with dentin adhesive or without dentin adhesive. Photomicrographs were made & examined by four evaluators.
Results: Composite resin had better marginal adaptation than the amalgam & the glass ionomer cement, but the difference was non significant (p>0.05). In addition, the adhesive groups together had less marginal adaptation than the other groups and the difference was significant (p<0.05).
Conclusion: Composite resin retrofilling material had better marginal adaptation than other materials used and the dentin adhesive may have no effect on the quality of the adaptation.
Key words: Adaptation, retrofilling, amalgam. (J Bagh Coll Dentistry 2008; 20(2):45-49)

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Article
Evaluation the Effect of Different Instrumentation& Obturation Techniques on the Apical Sealing Using Two Types of Sealers

Authors: Dr. Raid F. Salman. د.رعد سلمان --- Dr. Hala P. Hanna. د.هالة حنا
Journal: MUSTANSIRIA DENTAL JOURNAL مجلة المستنصرية لطب الاسنان ISSN: 18138500 Year: 2010 Volume: 7 Issue: 1 Pages: 1-8
Publisher: Al-Mustansyriah University الجامعة المستنصرية

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Abstract

AbstractThere is controversy as to which instrumentation &/or obturation techniques tochoose with which type of sealer give better apical sealing. This in vitro study aimedto evaluate the apical sealing ability of three obturation techniques and two types ofsealer.A total of 120 teeth were randomly divided into two groups; roots prepared usingstep-back and hybrid techniques. Each group of instrumented roots were subdividedrandomly into three obturation groups of 20 roots for each; each one of theseobturation techniques were used twice; once with ZOE sealer and other with AH26sealer. Then dye penetration study conducted & samples were examined under thestereomicroscope. Data had been collected from two independent examiners andstatistically analyzed using student t-test.Concerning the obturation techniques, warm vertical compaction showed bestapical sealing. Regarding sealers, AH 26 sealer had better sealing ability than ZOEsealer with highly significant difference.Warm vertical compaction obturation technique in combination with the AH 26resin sealer obturates the canals with lesser apical leakage.

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Article
Micro CT analysis of amount of dentin removal created by SAF vs. ProTaper systems

Authors: Diyar K. Bakir --- Hussain F. Al-Huwaizi حسين فيصل الحويزي --- Raid F. Salman
Journal: Journal of baghdad college of dentistry مجلة كلية طب الاسنان بغداد ISSN: 16800087 Year: 2014 Volume: 26 Issue: 3 Pages: 9-12
Publisher: Baghdad University جامعة بغداد

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Abstract

Background: Dentin removed during root canal system instrumentation for creating adequate geometry for thecanal and cleaning the canal. A new instrument had been marketed with the aim of optimum shaping of all parts ofthe canal system, however, no information present about the amount of dentin removal compared to conventionalrotary system. This study investigated the amount of dentin removal when the canal instrumented by SAF comparedwith ProTaper by using high resolution computed tomography (micro CT).Materials and Methods: Twenty extracted single canalled teeth were utilized for this study; and randomly divided into2 groups. In the first group, the root canals were prepared by using protaper rotary system till F2 and the root canalirrigated with 1ml of normal saline after each instrument. The root canals in the second group were prepared usingSAF for 2min, with continuous irrigation (normal saline). After rescanning, the amount of dentin removal wascalculated.Result: It was clear that the use of SAF system had increase the amount of dentin removal and in quantity larger thanthat did by ProTaper system & the mean of net difference was (0.288mm ± 0.051). By using t-independent test, therewas highly significant difference between the two groups at (p=0.001), with in favor of the SAF system over ProTapersystem at p< 0.01; in dentin removal quantityConclusion: Root canal preparation with SAF-system resulted in more and effectively removed dentin whencompared with protaper rotary files

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