Radiopacity of Methacrylate and Silorane Composite Resins Using a Digital Radiographic System

Firoozmand, Leily Macedo; Cordeiro, Mariana Gonçalves; Silva, Marcos André dos Santos da; Tavarez, Rudys Rodolfo de Jesus; Filho, Etevaldo Matos Maia

doi:10.1155/2016/6389347

Cited by 7 publications

(8 citation statements)

References 17 publications

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“…This may be explained by the lower concentration and not the type of the radiopacifying agent, which has similar atomic number with the other radiopacifying agents used. This is in agreement with Firoozmand et al who also reported low radiopacity values for Filtek P90 (silorane‐based composite) but slight higher from enamel's radiopacity.…”

Section: Discussionsupporting

confidence: 92%

“…In the present study, the highest radiopacity values presented Te‐Econom Plus, Tetric Ceram, and Tetric EvoCeram, which contain ytterbium (Yb) as a radiopacifying agent. This evidence coincides with the results of previous studies . Ytterbium has the highest atomic number (Z = 70) of the radiopacifying agents used in the tested composite materials providing higher radiopacity in lower concentrations compared to the other radiopacifying agents.…”

Section: Discussionsupporting

confidence: 91%

“…This evidence may be explained by the thickness of the specimens, which were 2 mm instead of 1 mm of the current study. Moreover, Firoozmand et al found that the specimens of the same thickness (1 mm) of Teric Ceram, TPH, Filtek Z350 and Filtek P90 (Filtek Silorane) presented lower radiopacity compared to the present study. In contrast, the results of the present investigation were similar to those obtained from Hitij and Filder who also evaluated radiopacity of Filtek Supreme XT, Grandio, Beautifil II, Filtek Silorane, Clearfil Majesty Posterior, Clearfil Majesty AP‐X, Tetric EvoCeram, and Te‐Econom Plus but in different shade (A2).…”

Section: Discussioncontrasting

confidence: 54%

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Effect of filler composition of dental composite restorative materials on radiopacity in digital radiographic images

et al. 2017

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The purpose of this study was to evaluate the effect of filler composition on the radiopacity of 16 dental composite restorative materials using digital radiography. Five disc‐shaped specimens of each composite material were prepared using Teflon molds and five enamel and dentin specimens were prepared from human teeth. The composite specimens were placed on a digital sensor together with a tooth fragment and an aluminum stepwedge and a digital dental X‐ray unit was used at the same exposure conditions. The mean gray values of each composite specimen, tooth fragment, and stepwedge were measured on the digital images using a software program. Statistical analysis of the data was implemented with one‐way ANOVA and post hoc Tukey's HSD test (a = 0.05). The composites presented higher radiopacity than dental tissues (p < 0.05), except Filtek Silorane which exhibited lower radiopacity than enamel (p < 0.05). Linear regressions revealed a very low correlation between radiopacity and filler content of the composites. The composite restoratives presented great variations in radiopacity. Concentration and type of the radiopacifying agents included in the composites crucially affected radiopacity. The choice of the composite restorative materials is of great importance due to large variations in their radiopacity, which depends on their filler composition. POLYM. COMPOS., 39:E351–E357, 2018. © 2017 Society of Plastics Engineers

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Section: Discussionsupporting

confidence: 92%

Section: Discussionsupporting

confidence: 91%

Section: Discussioncontrasting

confidence: 54%

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Effect of filler composition of dental composite restorative materials on radiopacity in digital radiographic images

et al. 2017

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“…found that enamel and dentin has radiopacity of 0.91 mm and 0.63 equivalent of Al, respectively. [ 42 ] Hrab et al . compared radiopacity of TotalFill BC sealer with hydroxyapatite with zinc (5%–10%), hydroxyapatite with silver (10%–15%), aluminosilicate glasses (45%–50%), zirconium oxide (10%–15%), and calcium hydroxide (5%–10%) and found that TotalFill had Radiopaque of average 4 ± 0.15 (unit) which was greater radiopacity than experimental materials.…”

Section: Premixed Bioceramics As a Pulp Capping Agentsmentioning

confidence: 99%

Premixed bioceramics: A novel pulp capping agent

et al. 2021

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The main aim of restorative dentistry is to protect the vitality of the Pulp tissue. The pin point carious expoure and iatrogenic errors warrant the need for various pulp capping procedures like Indirect Pulp Capping and Direct Pulp Capping. Pulp Capping is dressing of the dental pulp exposed due to mechanical procedure, carious lesion or traumatic injury to preserve its vitality and function. There has been constant evolution and research on materials used to cap the Pulp tissue. The different kind of chemical and biological materials has been used with varying degree of success. The prognosis based on the pulp capping material has dramatically improved with the introduction of bioactive cement. Though MTA and biodentine have shown a high success rate, their properties can be adversely affected with error in powder/liquid ratio and may present with difficulty in the handling characteristic. Premixed bioceramics have been introduced in the market and present with desirable properties as a pulp capping agent. Owing to good handling characteristics, biocompatibility, odontogenic property, and antibacterial action it is a potent pulp capping agent for clinical application. This review is aimed to discuss the introduction of premixed bioceramics, forms of premixed bioceramics available, and its physical, chemical, and biocompatible properties.

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“…The diversity of chemical composition and proportions, which typically are not detailed by manufacturers, has been mainly associated with a wide-ranging scale of radiopacity values observed in the scientific literature [ 14 ]. However, the choice of imaging system and exposure parameters was also reported to exert an influence on the radiopacity level [ 15 ], leading to intra-material variations up to 25% [ 16 ] and thus raising difficulties in making a conclusive evaluation and comparison of the published data. Moreover, the radiopacity of HCSCs is routinely assessed after the complete setting of the material in time periods of 24 h to 28 days, whereas the clinically radiographic images are obtained immediately after the endodontic treatment is finished.…”

Section: Introductionmentioning

confidence: 99%

Immediate and Long-Term Radiopacity and Surface Morphology of Hydraulic Calcium Silicate-Based Materials

et al. 2022

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The present study aimed to evaluate and compare the radiopacity and surface morphology of AH Plus Bioceramic Sealer (AHPB), Bio-C Sealer (BIOC), Biodentine (BD), BioRoot RCS (BR), Grey-MTAFlow (GMF), White-MTAFlow (WMF), TotalFill BC Sealer (TF), and TotalFill BC Sealer HiFlow (TFHF) at different time moments—30 min, 24 h, and 28 days. Ten specimens of each material were prepared according to the ISO-6876:2012 standard and radiographed next to an aluminum step wedge using a digital sensor. The specimens were stored in a gelatinized Hank’s balanced salt solution at 37 °C between assessments. The mean grayscale values of each specimen were converted into equivalent aluminum thickness by a linear regression model. Characterization of the surface morphology was performed by using a scanning electron microscope at ×4.0k and ×10.0k magnifications. The radiographic analysis revealed that all the tested materials exceeded the ISO-specified limit of 3 mm Al, with the highest radiopacity presented by AHPB and the lowest by BD. None of the tested materials demonstrated considerable variances between the 30 min and the 24 h radiopacity level (p < 0.05), and statistically significant long-term radiopacity changes were exhibited by BR, TFHF, and TF (p > 0.05). All the specimens demonstrated a common feature of limited precipitate formation, with numerous unreacted particles still presented on the surface after 24 h, whereas the particle rearrangement and the deposition of precipitates were clearly observed after 28 days.

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Radiopacity of Methacrylate and Silorane Composite Resins Using a Digital Radiographic System

Cited by 7 publications

References 17 publications

Effect of filler composition of dental composite restorative materials on radiopacity in digital radiographic images

Effect of filler composition of dental composite restorative materials on radiopacity in digital radiographic images

Premixed bioceramics: A novel pulp capping agent

Immediate and Long-Term Radiopacity and Surface Morphology of Hydraulic Calcium Silicate-Based Materials

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