Long-Term Clinical Repair of Endodontic Perforations with Calcium Silicate-Based Cements

Kouzmanova, Yaneta; Dimitrova, Ivanka; Tsanova-Tosheva, Desislava

doi:10.1145/3502060.3502319

Cited by 2 publications

(4 citation statements)

References 11 publications

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“…Inadequate sealing of the retrograde cavity is considered the main reason for the failure of endodontic surgery [17][18][19]. Good marginal adaptation to dentin and internal porosity of calcium silicate cements are related to their sealing capacity and ability to resist bacteria penetration and prevent the percolation of tissue fluids [20,21]. Therefore, the porosity characteristics of bioceramic materials are important determinants of healing outcomes of endodontic surgery [2,22,23].…”

Section: Discussionmentioning

confidence: 99%

Marginal Adaptation and Porosity of a Novel MTA Brand Applied as Root-End Filling Material: A Micro-CT Study

Kouzmanova,

Dimitrova

2024

Applied Sciences

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Marginal adaptation and internal porosity characteristics of root-end filling materials are important factors determining their clinical performance. The aim of this study was to quantitatively evaluate the marginal adaptation to radicular dentin (interfacial void volume) and internal porosity volume of a novel mineral trioxide aggregate brand using micro-CT analysis. Ten extracted upper central incisors were selected, instrumented, and obturated. Roots were resected at the apical 3 mm, and root-end cavities were prepared ultrasonically and filled with Harvard MTA. SkyScan 1272 micro-CT equipment was used to scan the specimens at a resolution of 6 μm, and three-dimensional images were reconstructed. All volumetric porosity parameters of the tested material were calculated in absolute (mm3) and relative values (%), as follows: open porosity volume (OPV), closed porosity volume (CPV), and total porosity volume (TPV). The mean OPV and OPV% found for Harvard MTA were 0.0268 mm3 and 0.91%, respectively. The mean CPV and CPV% were 0.0283 mm3 and 0.94%, respectively. The TPV and TPV% were 0.0569 mm3 and 1.85%. There was no significant difference between the OPV% and CPV% (p < 0.05). In conclusion, when applied as a retrofilling material, Harvard MTA exhibited excellent marginal adaptation to the dentin with minimal interfacial voids and internal microporosity. Therefore, this new calcium silicate brand may be considered an efficient alternative to conventional products.

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Section: Discussionmentioning

confidence: 99%

Marginal Adaptation and Porosity of a Novel MTA Brand Applied as Root-End Filling Material: A Micro-CT Study

Kouzmanova,

Dimitrova

2024

Applied Sciences

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“…With this, the mechanical resistance of the calcium hydroxide cement is disturbed. As a result, the cement disintegrates over time (5).…”

Section: Discussionmentioning

confidence: 99%

“…Gaps are formed at the place of their placement, which is unfavourable in the treatment of dental caries (5).…”

Section: Discussionmentioning

confidence: 99%

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A study of the cytotoxicity of resin-modified glass-ionomer cement

Kirilova

2024

MedInform

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Background. It is crucial to maintain the vitality of the dental pulp by using biologically tolerable materials when placed on dentin near the dental pulp. Calcium-hydroxide cement has been established as such a material.Resin-modified Glass-ionomer cement (RMGIC) is another group of materials. The results on the biological tolerance of different types are contradictory.Aim. Therefore, we conducted a study to compare the cytotoxicity of glass-ionomer cement available in powder and liquid packages with individual capsule doses on cell cultures. Material and methods.The materials used in this study are zink phosphate cement AdhesorTM Fine (GR.1), resinmodified glass-ionomer cement Fiji LC II (Gr.2) powder-liquid package; Fiji LC II (Gr3) individual capsules package, calcium-hydroxide cement Basic L (Gr.4). The study was conducted on human skin-muscle embryonic fibroblasts (diploid cells) cell cultures.Results. The study's results indicate that RMGIC Fuji LC II and calcium-hydroxide cement studies have approximately the same degree of relative growth on cell cultures. However, in powder-liquid packaging, the results deteriorate over time, while individual ones retain their qualities.Conclusions. The present study's limitation is that RMGIC packages influenced the materials' cytotoxicity degree.Individual capsules of RMGIC had a better degree of cytotoxicity close to the calcium-hydroxide cement. Further research is needed along these lines.

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Long-Term Clinical Repair of Endodontic Perforations with Calcium Silicate-Based Cements

Cited by 2 publications

References 11 publications

Marginal Adaptation and Porosity of a Novel MTA Brand Applied as Root-End Filling Material: A Micro-CT Study

Marginal Adaptation and Porosity of a Novel MTA Brand Applied as Root-End Filling Material: A Micro-CT Study

A study of the cytotoxicity of resin-modified glass-ionomer cement

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