Micro-computerized tomographic analysis of premolars restored with oval and circular posts

Rengo, Carlo; Spagnuolo, Gianrico; Ametrano, Gianluca; Juloski, Jelena; Rengo, Sandro; Ferrari, Marco

doi:10.1007/s00784-013-0982-7

Cited by 42 publications

(46 citation statements)

References 32 publications

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“…This then increases the shrinkage stress induced by polymerization of the resin cement [15,16]. Although many in-vitro studies have investigated the influence of cement thickness [16][17][18][19][20][21][22] and voids [16,[23][24][25] on the bond strength of fiber posts, there is no consensus in the literature.…”

Section: Introductionmentioning

confidence: 99%

“…Another disadvantage of sectioning is that only a limited number of sections per specimen can be evaluated, and only the area of cement and voids can be analyzed [18,19]. Micro-CTs have recently been used to differentiate between canal walls, cement, and fiber post, and show that 3D quantitative assessment of post space volume is possible [17]. Moreover, through this technique any potential operator bias during interpretation of the results could be avoided [28].…”

Section: Introductionmentioning

confidence: 99%

“…Limited number of studies carried out a 3D volumetric evaluation of different post systems [17,29,30].…”

Section: Introductionmentioning

confidence: 99%

“…It has promising applications in different fields of dentistry [17,26,27]. The influence of the cement thickness on bond strength of fiber posts has been evaluated using longitudinal sectioning prior to photographic and microscopic analysis but this technique can also lead to loss of cement material during sectioning [x].…”

Section: Introductionmentioning

confidence: 99%

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Micro-computerized tomography analysis of cement voids and pull-out strength of glass fiber posts luted with self-adhesive and glass-ionomer cements in the root canal

Sarıdağ

Helvacıoğlu-Yiğit

Özcan

et al. 2016

Journal of Adhesion Science and Technology

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Originally published at: Sarıdağ, Serkan; Helvacıoğlu-Yiğit, Dilek; Özcan, Mutlu; Avcu, Egemen; Kızıltaş, Güllü (2016). Microcomputerized tomography analysis of cement voids and pull-out strength of glass fiber posts luted with self-adhesive and glass-ionomer cements in the root canal. Kocaeli, Turkey. Tel:+90 262 344 22 22, ssaridag@hotmail.com 2 Abstract: This study evaluated the pull-out strength of different glass fiber posts and measured volume of cement and voids in the cement in the root canal utilizing micro-computerized tomography (micro-CT) analysis after they were cemented with two different luting cements. Canine teeth (N=40) were endodontically treated and randomly divided into four groups depending on the fiber post and the cement type (n=10 per group) as follows: Group RU: (RelyX + RelyX U200), Group PU: (PINpost + RelyX U200), Group RF: (RelyX + FujiCEM 2), Group PF: (PINpost + FujiCEM 2). Each tooth was scanned using micro-CT and the percentage of cement and void volume at the coronal, middle, and apical levels was calculated. Pull-out tests were performed by applying tensile load parallel to the long axis of the posts (0.5 mm/min). Data were analyzed using, ANOVA, Kruskal-Wallis and Mann-Whitney U tests (alpha=0.05).

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…Limited number of studies carried out a 3D volumetric evaluation of different post systems [17,29,30].…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Micro-computerized tomography analysis of cement voids and pull-out strength of glass fiber posts luted with self-adhesive and glass-ionomer cements in the root canal

Sarıdağ

Helvacıoğlu-Yiğit

Özcan

et al. 2016

Journal of Adhesion Science and Technology

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“…No que diz respeito à influência da espessura da linha de cimento resinoso sobre a resistência de união de pinos de fibra, não há consenso na literatura sobre a espessura ideal da interface de cimento resinoso para otimizar a retenção de um pino (95). Alguns estudos de resistência de união sugerem que a espessura de cimento não afeta significativamente a resistência de união dos pinos de fibra à dentina radicular (101,102).…”

Section: Experimento 2 -Resistência De Uniãounclassified

Avaliação microtomográfica e da resistência de união de cimentos resinosos auto-adesivos à dentina intra-radicular

Pedreira¹

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RESUMOIntrodução: Atualmente, o conhecimento acerca da interação dos cimentos auto-adesivos com a dentina intra-radicular é escasso. Informações detalhadas sobre a linha de cimentação e a interação com o substrato podem trazer dados preciosos na busca de uma união mais efetiva. Objetivo: Analisar a linha de cimentação de três cimentos resinosos autoadesivos e um resinoso dual convencional em dentina intra-radicular, por meio de microtomografia e do teste de push-out. Método: Três cimentos auto-adesivos (U100/3M ESPE, Maxcem/Kerr, Clearfil SA Bond/Kuraray) e um cimento resinoso dual convencional (Rely X ARC/3M ESPE) foram testados usando 2 técnicas de cimentação. O percentual de bolhas e a resistência de união foram quantificados de acordo com a técnica e os terços. 40 raízes de pré-molares humanos foram desobturadas na profundidade de 10mm. O cimento resinoso foi manipulado de acordo com a recomendação do fabricante. A inserção do cimento seguiu as orientações dos fabricantes para os grupos A e, para os grupos B, 40 pinos de fibra foram cimentados com o auxílio da ponta agulha de uma seringa centrix. As raízes foram escaneadas em um microtomógrafo e a linha de cimento foi analisada pelos softwares DataViewer, CTan, CTvol e CTvox. Após 07 dias, as raízes foram seccionadas perpendicularmente ao longo eixo e submetidas ao teste de extrusão. Os dados foram submetidos a ANOVA 3 critérios e Teste de Tukey. Resultados e Conclusão: A análise microtomográfica mostrou menor número de bolhas para os grupos B. A resistência de união foi significativamente maior para os auto-adesivos quando a seringa centrix foi utilizada (p<0,0001). A resistência de união decresceu em direção apical, independentemente da técnica e da distribuição das bolhas. Não houve relação entre os valores de resistência de união e a localização e volume de bolhas. A microtomografia mostrou-se um método eficaz na visualização e quantificação de bolhas na linha de cimentação. Palavras-chave: cimentos auto-adesivos, resistência de união, pinos de fibra, Microtomografia. ABSTRACTIntroduction: Currently, the knowledge about self-adhesive resin cements interaction with

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Restoration of Root Canal-Treated Teeth

Perdigão

2016

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Micro-computerized tomographic analysis of premolars restored with oval and circular posts

Abstract: The microCT analysis provided interesting information on voids distribution and on the ratio between post shape and cement thickness. These results might address the clinician in the reconstruction of teeth with fiber posts.

Cited by 42 publications

References 32 publications

Micro-computerized tomography analysis of cement voids and pull-out strength of glass fiber posts luted with self-adhesive and glass-ionomer cements in the root canal

Micro-computerized tomography analysis of cement voids and pull-out strength of glass fiber posts luted with self-adhesive and glass-ionomer cements in the root canal

Avaliação microtomográfica e da resistência de união de cimentos resinosos auto-adesivos à dentina intra-radicular

Restoration of Root Canal-Treated Teeth

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