Evaluation of mechanical properties of five cements for orthodontic band cementation

Aguiar, Diego Andrei; Rocha, Roberto; Locks, Arno; Borgatto, Adriano Ferreti

doi:10.1590/s1806-83242013005000002

Cited by 3 publications

(1 citation statement)

References 20 publications

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“…Regarding CS, previous studies found similar values to those observed in conventional and RMGI cements analyzed in our study [ 41 , 42 , 43 , 44 ]. On the other hand, in this study the experimental groups with 5% and 10% of Halloysite nanotubes preloaded with chlorhexidine showed an increase in CS, which can be considered a positive modification.…”

Section: Discussionsupporting

confidence: 89%

Mechanical Properties and Antibacterial Effect on Mono-Strain of Streptococcus mutans of Orthodontic Cements Reinforced with Chlorhexidine-Modified Nanotubes

et al. 2022

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Recently, several studies have introduced nanotechnology into the area of dental materials with the aim of improving their properties. The objective of this study is to determine the antibacterial and mechanical properties of type I glass ionomers reinforced with halloysite nanotubes modified with 2% chlorhexidine at concentrations of 5% and 10% relative to the total weight of the powder used to construct each sample. Regarding antibacterial effect, 200 samples were established and distributed into four experimental groups and six control groups (4 +ve and 2 −ve), with 20 samples each. The mechanical properties were evaluated in 270 samples, assessing microhardness (30 samples), compressive strength (120 samples), and setting time (120 samples). The groups were characterized by scanning electron microscopy and Fourier transform infrared spectroscopy, and the antibacterial activity of the ionomers was evaluated on Streptococcus mutans for 24 h. The control and positive control groups showed no antibacterial effect, while the experimental group with 5% concentration showed a zone of growth inhibition between 11.35 mm and 11.45 mm, and the group with 10% concentration showed a zone of growth inhibition between 12.50 mm and 13.20 mm. Statistical differences were observed between the experimental groups with 5% and 10% nanotubes. Regarding the mechanical properties, microhardness, and setting time, no statistical difference was found when compared with control groups, while compressive strength showed higher significant values, with ionomers modified with 10% concentration of nanotubes resulting in better compressive strength values. The incorporation of nanotubes at concentrations of 5% and 10% effectively inhibited the presence of S. mutans, particularly when the dose–response relationship was taken into account, with the advantage of maintaining and improving their mechanical properties.

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Section: Discussionsupporting

confidence: 89%

Mechanical Properties and Antibacterial Effect on Mono-Strain of Streptococcus mutans of Orthodontic Cements Reinforced with Chlorhexidine-Modified Nanotubes

et al. 2022

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Anin vitrostudy on the retentive strength of orthodontic bands cemented with CPP-ACP-containing GIC

Heravi¹,

Bagheri²,

Rangrazi³

et al. 2016

Mater. Res. Express

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Comparación de la resistencia a la descementación y el tipo de falla de tres cementantes de bandas en ortodoncia

Piedra-Sarmiento

Ariza-Salas

Guzmán-Báez

et al. 2016

Rev Fac Odontol Univ Antioq

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ABSTRACT. Introduction: the objective of this study was to compare the debonding resistance and failure type observed in three materials used for band cementation by means of the universal testing machine and a stereomicroscope. Methods: 72 third lower molars were collected from patients who needed extractions; metal bands were cemented on them with a pre-soldered tube and internal etching (Bracket USED,). Finally, to determine failure type, a visual inspection was conducted using a stereomicroscope (Stemi 2000C, Carl Zeiss, Göttingen, Germany AXIOCAM Carl Zeiss Microimaging, Göttingen, Germany). Results: no statistically significant differences were found among the three study groups in terms of debonding resistance (p value = 0.119 (Stemi 2000C, Carl Zeiss, Göttingen, Germany AXIOCAM Carl Zeiss Microimaging, Góttingen, Germany). Resultados: en cuanto a la resistencia a la descementación, no se observaron diferencias estadísticamente significativas entre los tres grupos estudiados (valor p = 0,119 Piedra-Sarmiento LA, Ariza-Salas MC, Guzmán-Báez HJ, Zárate-Cadena F. Comparación de la resistencia a la descementación y el tipo de falla de tres cementantes de bandas en ortodoncia. Rev Fac Odontol Univ Antioq 2016; 28(1): 95-111. DOI: http: //dx.doi.

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Evaluation of mechanical properties of five cements for orthodontic band cementation

Cited by 3 publications

References 20 publications

Mechanical Properties and Antibacterial Effect on Mono-Strain of Streptococcus mutans of Orthodontic Cements Reinforced with Chlorhexidine-Modified Nanotubes

Mechanical Properties and Antibacterial Effect on Mono-Strain of Streptococcus mutans of Orthodontic Cements Reinforced with Chlorhexidine-Modified Nanotubes

Anin vitrostudy on the retentive strength of orthodontic bands cemented with CPP-ACP-containing GIC

Comparación de la resistencia a la descementación y el tipo de falla de tres cementantes de bandas en ortodoncia

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