Radiopacity quantification and spectroscopic characterization of <scp>OrthoMTA</scp> and <scp>RetroMTA</scp>

Orhan, Ekim Onur; Irmak, Özgür; Bal, Emine Zeynep; Danacı, Zeliha; Babayeva, Fidan; Orhan, Eren; Yücel, Berk Can

doi:10.1002/jemt.23682

Cited by 3 publications

(7 citation statements)

References 30 publications

(34 reference statements)

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“…However, zirconia has a lower radiopacity is lower due to its lower atomic number [ 38 ]. Biodentine was found to be the least radiopaque material when compared to OrthoMTA, RetroMTA, and ProCal in a previous study [ 20 ]. OrthoMTA was found less radiopaque than RetroMTA.…”

Section: Discussionmentioning

confidence: 97%

“…They converted the light transmission into an equivalent aluminum thickness by comparing it with an aluminum step-wedge radiographed on the same film. An aluminum step-wedge is now the standard for radiopacity comparisons [ 20 , 21 ].…”

Section: Discussionmentioning

confidence: 99%

“…OrthoMTA was found less radiopaque than RetroMTA. This finding was attributed to higher amounts of Zirconium content of RetroMTA [ 20 ]. As reported by Orhan et al [ 20 ], Biodentine showed less radiopacity value compared to OrthoMTA.…”

Section: Discussionmentioning

confidence: 99%

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Radiopacity evaluation of calcium silicate cements

2023

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Background The aim of this study was to compare the radiopacity of calcium silicate cements using a digital imaging method. Methods Four calcium silicate cements, NeoMTA 2, OrthoMTA, ProRoot MTA, and Biodentine, were used in this study. Disk-shaped samples were prepared from each material and placed on a plexiglass plate. An aluminum step-wedge was placed alongside the samples on a digital sensor and exposed to 70 kVp and 8 mA from 30 cm away for 0.32 s. The greyness values of the tested materials were measured digitally with the system software and compared with those of the step-wedge to determine the equivalent aluminum thickness. Results The radiopacity values, expressed in equivalent millimetres of aluminum, of the studied materials ProRoot MTA, OrthoMTA, NeoMTA 2, and Biodentine were 4.32 ± 0.17 mm Al, 3.92 ± 0.09 mm Al, 3.83 ± 0.07 mm Al, and 2.29 ± 0.21 mm Al, respectively. Statistically significant differences were found between the mean radiographic density values of the tested materials (p < 0.05). Conclusion ProRoot MTA was the most radiopaque root canal filling material among the tested materials. All materials, except Biodentine, were found to be compliant with the minimum radiopacity requirements of ISO 6876 and ADA 57 standards.

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Section: Discussionmentioning

confidence: 97%

Section: Discussionmentioning

confidence: 99%

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Radiopacity evaluation of calcium silicate cements

2023

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“…BioMTA was the material with the lowest dislocation resistance when in contact with PBS. It was reported as a suitable CSC for pulp repair containing hydraulic zirconia complex as a filler [ 44 ] with a more extended setting reaction time [ 45 ], which may impact the material's solubility, resulting in lower MPa values.…”

Section: Discussionmentioning

confidence: 99%

Influence of Acidic Environmental Conditions on Push-Out Bonding Strength of Four Calcium Silicate-Based Materials to Root Dentin

Özel

Erişen

2022

International Journal of Dentistry

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Introduction. Calcium silicate-based cements (CSCs) are frequently used in various endodontic procedures such as perforation repair, vital pulp therapy, regenerative treatments, or apexification. One of their areas of use, treatment of perforations, can be challenging in clinical practice. Selection of stable, durable, and compatible material with structural and biological alterations is a must in such situations. Aim. This study aimed to compare the dislocation resistance of various calcium-silicate-containing materials used in endodontic treatment exposed to various environmental conditions in a push-out study model. Methods. Selected ninety-six human mandibular premolars with single root canals were cut from the middle portion to obtain dentin slices of 2 mm thickness (n = 192). Then, the canal lumen was enlarged by using #4Gates-Glidden drills. Specimens for each repair material (MTA, Angelus, Endosequence RRM (ERRM), Biodentine, BioMTA) were placed in shaped lumens, wrapped in pieces of gauze, and randomly divided into four groups (n = 48) according to the storage time and media: group A: 4 days in phosphate-buffered saline (PBS), group B: 4 days in acetic acid (pH = 4.4), group C: 34 days in PBS, and group D: 4 days in acetic acid (pH = 4.4) followed by exposure to PBS for 30 days. A universal testing machine measured the dislodgement resistance followed by scanning electron microscopy imaging to evaluate the material-dentin interface. Results. ERRM showed the highest dislocation resistance in all test groups ( p < 0.05 ). The greatest bonding strength was observed (13,54 ± 5,56 MPa) after exposure to 34 days in PBS (pH = 7.2). The values for ERRM decreased in contact with acetic acid (pH = 4.4) and increased when placed in PBS ( p > 0.05 ). Conclusion. All repair materials showed a higher dislocation resistance when stored in PBS regardless of storage time. However, the improved pH of the surrounding media was not successful in reversing the deteriorating effect caused by lower pH in relation to dislocation resistance in all tested materials except for ERRM.

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“…Diagnosing various types of AP and further analyzing the potential pathophysiological approach of each category is essential for optimized treatment techniques and better care of patients. A gas chromatography–mass spectrometry (GC–MS)‐based metabolomics approach and random forests algorithm are introduced to distinguish hyper‐lipidemia acute pancreatitis (HLAP), alcoholic acute pancreatitis (AAP), and biliary acute pancreatitis (BAP) from healthy controls (Gnerucci et al, 2014; Koç, Aslan, Kao, & Barber, 2019; Orhan et al, 2020; Párniczky et al, 2019; Sundararaj, 2016; Sundararaj, 2019; Sundararaj, 2021; Sundararaj, Muthukumar, & Kumar, 2018; Vinu, 2019; Xue, Chan, & Gujral, 2020). Acute severe pancreatitis (AP) is related to high mortality and morbidity mainly in elderly patients.…”

Section: Introductionmentioning

confidence: 99%

Near‐infrared optical spectroscopy for pancreas shrinkage estimation with multi synchrosqueezing transform and multivariate regression model

Priyadharshini¹,

Prem²,

Suresh³

2021

Microscopy Res & Technique

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In this article, we proposed a method to estimate pancreas shrinkage with pancreas β cell insulin secretion. The β cells in the pancreas secrete insulin and digestive enzymes after food consumption. Conventionally, the pancreas structure estimation is done with magnetic resonance imaging (MRI) and ultrasound imaging techniques. However, the structure of the pancreas changes due to islet cell death. The presence of islet cells is detected through near infrared (NIR) spectroscopy signal acquired from the epigastric region (pancreas) of the abdomen. Subsequently, the NIR spectroscopy signal from the pancreas is analyzed with multi synchrosqueezing transform (MSST); whereas, the β cell insulin secretion varies for diabetic and nondiabetic persons. The existence of β cell and insulin secretion correlates with Root Mean Square (RMS) and kurtosis via a multivariate regression model to evaluate pancreas shrinkage. In terms of numerical results, NIR spectroscopy signal from the pancreas was obtained for about 20 nondiabetic and 20 diabetic persons. The pancreas shrinkage was estimated with 88% accuracy. The results are validated with MRI pancreas images for earlier detection of the apoptotic pancreas. The pancreas shrinkage causes lower insulin emission and unpredictable blood glucose in diabetic patients. Analysis of NIR spectroscopy signals of the pancreas with MSST was done to obtain higher‐order and lower‐order frequency components.

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Radiopacity quantification and spectroscopic characterization of OrthoMTA and RetroMTA

Cited by 3 publications

References 30 publications

Radiopacity evaluation of calcium silicate cements

Radiopacity evaluation of calcium silicate cements

Influence of Acidic Environmental Conditions on Push-Out Bonding Strength of Four Calcium Silicate-Based Materials to Root Dentin

Near‐infrared optical spectroscopy for pancreas shrinkage estimation with multi synchrosqueezing transform and multivariate regression model

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