An in vitro assessment of the residual dentin after using three minimally invasive caries removal techniques

Rand Mohammed Al-Sagheer; Ali J. Addie; Lamis A. Al-Taee

doi:10.1038/s41598-024-57745-0

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Publication Date

Tue Mar 26 2024

Journal Name

Scientific Reports

Volume

14

Issue Number

1

DOI

10.1038/s41598-024-57745-0

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An in vitro assessment of the residual dentin after using three minimally invasive caries removal techniques

Chemomechanical caries removal

Rotary excavation

Er

Cr: YSGG laser ablation

Sonic abrasion

Raman spectroscope

Rand Mohammed Al-Sagheer

Ali J. Addie

Lamis A. Al-Taee

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Abstract<p>To evaluate the efficiency and effectiveness of three minimally invasive (MI) techniques in removing deep dentin carious lesions. Forty extracted carious molars were treated by conventional rotary excavation (control), chemomechanical caries removal agent (Brix 3000), ultrasonic abrasion (WOODPECKER, GUILIN, China); and Er, Cr: YSGG laser ablation (BIOLASE San Clemente, CA, USA). The assessments include; the excavation time, DIAGNOdent pen, Raman spectroscopy, Vickers microhardness, and scanning electron microscope combined with energy dispersive X-ray spectroscopy (SEM–EDX). The rotary method recorded the shortest excavation time (p < 0.001), Brix 3000 gel was the slowest. DIAGNOdent pen values ranged between 14 and 18 in the remaining dentin and laser-ablated surfaces recorded the lowest reading (p < 0.001). The Ca:P ratios of the remaining dentin were close to sound dentin after all excavation methods; however, it was higher in the ultrasonic technique (p < 0.05). The bur-excavated dentin showed higher phosphate and lower matrix contents with higher tissue hardness that was comparable to sound dentin indicating the non-selectiveness of this technique in removing the potentially repairable dentin tissue. In contrast, the MI techniques exhibited lower phosphate and higher organic contents associated with lower microhardness in the deeper dentin layers. This was associated with smooth residual dentin without smearing and patent dentinal tubules. This study supports the efficiency of using MI methods in caries removal as conservative alternatives to rotary excavation, providing a promising strategy for the clinical dental practice.</p>

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Publication Date

Tue Oct 01 2019

Journal Name

Journal Of Economics And Administrative Sciences

Achieving Educational Service Quality by applying international standard (ISO21001:2018) case study / university of technology – electromechanical engineering department – energy branch

جـودة الخدمات التعليميـة

ISO 21001:2018

Educational Service Quality

ISO 21001:2018

عبد الناصر علك

حنان مازن

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The research examines the mechanism of application of )ISO 21001: 2018( in the Energy Branch- Electromechanical Engineering at the University of Technology to achieve the quality of the educational service to prepare the branch to obtain the certificate of conformity with the requirements of) ISO 21001: 2018(, the necessary data were collected Depending on the (CHEKLIST) of (ISO 21001: 2018), field interviews and records of the concerned department, The researchers reached a number of results, the most prominent of which was the adoption of high quality leadership leaders and their willingness to implement the standard requirements, The university has a basic structure that qualifies it to implement the international standard, as

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(2)

Publication Date

Fri Feb 01 2019

Journal Name

International Journal Of Biology, Pharmacy And Allied Sciences

PREVALENCE OF HEPATITIS B AND C VIRUS INFECTION AMONG PATIENTS WITH VON- WILL BRAND DISEASE AT MEDICAL CITY / BAGHDAD 2018

PREVALENCE

HEPATITIS B AND C VIRUS

PATIENTS

VON- WILL BRAND DISEASE

MEDICAL CITY

BAGHDAD

Huda Adnan Habib

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ABSTRACT Background: Viral hepatitis places a heavy burden on the health care. Large number of patient with bleeding disorders has chronic hepatitis C infection, while few are chronic carriers of hepatitis B virus. Aims of study: evaluate the prevalence of HBV, HCV infection among patient with Von Willebrand disease and to find factors that associated with the chance of getting the infection.

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Mon Jun 01 2026

Journal Name

Journal Of Trace Elements In Medicine And Biology

Synthesis, structural characterization, biological activity of trace metal complexes with a 2-aminobenzothiazole-derived schiff base: Experimental and docking studies

Doaa Neamah

K.M.

Ismaeel Y.

Hany M.

Mayada

Rasha Ahmed

Amer J.

Abaas Obaid

Antar A.

Manal M.

Mohamed

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Sun Mar 01 2026

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Journal Of Molecular Structure

Synthesis, characterization, DFT calculations, molecular docking, ADMET analysis and biological activity of Schiff base metal complexes against colon cancer cells

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Sun Jan 01 2023

Journal Name

Phyton

Toxic and Antifeedant Effects of Different Pesticidal Plant Extracts against Beet Armyworm (<i>Spodoptera exigua</i>)

Bioassay methods

feeding deterrence

botanical pesticide

pest management

sustainable agriculture

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The beet armyworm (BAW), Spodoptera exigua (Lepidoptera: Noctuidae) is a highly destructive pest of vegetables and field crops. Management of beet armyworm primarily relies on synthetic pesticides, which is threatening the beneficial community and environment. Most importantly, the BAW developed resistance to synthetic pesticides with making it difficult to manage. Therefore, alternative and environment-friendly pest management tactics are urgently required. The use of pesticidal plant extracts provides an effective way for a sustainable pest management program. To evaluate the use of pesticidal plant extracts against BAW, we selected six plant species (Lantana camara, Aloe vera, Azadirachta indica, Cymbopogon citratus, Nicotiana tabacum ,

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Journal Name

International Communications In Heat And Mass Transfer

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Sat Jan 03 2026

Journal Name

Journal Of Molecular Structure

Synthesis, characterization, DFT calculations, molecular docking, ADMET analysis and biological activity of Schiff base metal complexes against colon cancer cells

Metal-thiocyanate complexes DFT analysis Caco-2 colon carcinoma ADMET pharmacokinetic prediction Cytotoxicity assay and molecular docking

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Ali J. A.

Hanan Adnan Shaker

Shatha M. H.

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