Bacterial leakage in coronally unsealed root canals obturated with 3 different techniques

Siqueira, José F.; Rôças, Isabela N.; Favieri, Amauri; Abad, Ernani da Costa; Castro, A.J. Ramiro de; Gahyva, Sérgio M.

doi:10.1067/moe.2000.110412

Cited by 94 publications

(97 citation statements)

References 19 publications

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“…Several methods are used to evaluate root canal quality, and dyes or alternative tracers are generally used for this purpose (18). However, reports suggest that these conventional methods have disadvantages, the most common of which are the considerable time required and lack of standardization (19)(20)(21). In addition, dye penetration cannot adequately simulate true clinical conditions, which are characterized by hindrance of fluid movement due to air entrapment in voids along the root canal filling (21).…”

Section: Discussionmentioning

confidence: 99%

Micro-CT assessment of the sealing ability of three root canal filling techniques

et al. 2015

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This study used micro-CT to compare three obturation techniques with respect to void occurrence in canals filled with bioceramic sealer. Thirty extracted first mandibular premolars were prepared with a ProTaper Universal system and randomly allocated to three groups. Canals were obturated with gutta-percha and bioceramic root canal sealer, using either single-cone, lateral compaction, or Thermafil filling technique. Each tooth was then scanned with micro-CT. Voids in 2D cross-sectional images and void volumes in 3D images of all root thirds were assessed in relation to obturation technique. There was no significant difference between obturation techniques in the proportion of sections with voids (P > 0.05). However, the results of the obturation techniques significantly differed in relation to root region (P < 0.05). In conclusion, no root filling technique resulted in void-free specimens. Void volumes were highest for the single-cone technique and lowest for Thermafil, in all regions (P < 0.05). (J Oral Sci 57, 361-366, 2015)

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Section: Discussionmentioning

confidence: 99%

Micro-CT assessment of the sealing ability of three root canal filling techniques

et al. 2015

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“…No entanto, este fato não diminui a importância de uma boa obturação que visa o selamento de vestígios de irritantes no sistema canalar e a minimização dos efeitos nocivos de eventuais derrames apicais e coronais. Porque atualmente não existem cimentos nem técnicas que garantam o selamento adequado de todo o sistema canalar, o cimento deve, pelo menos, reduzir o esvazamento e aprisionar os microrganismos remanescentes, de forma a evitar o seu acesso aos tecidos periradiculares (Siqueira et al, 2000). Por isso é recomendado o uso de medicação intracanalar como derivados fenólicos, depósitos de clorohexidina, soluções de iodo/iodeto de potássio e hidróxido de cálcio (Morrier et al, 2003).…”

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A quitosana como biomaterial odontológico: estado da arte

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Pina‐Vaz

et al. 2013

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Resumo A impossibilidade de erradicar completamente os microrganismos da cavidade oral ou dos canais radiculares estimula a procura de novos materiais que permitam cada vez mais eficazmente, controlar ou prevenir o aparecimento de infeções. A quitosana é um biopolímero com uma estrutura química e características únicas que permitem que apresente excelente biocompatibilidade e que seja facilmente processado. A panóplia de aplicações é tão fascinante como ainda mal conhecida. A constatação do potencial e do valor industrial deste biopolímero conduziu à sua utilização em muitas aplicações de interesse tecnológico e, de uma forma acentuada, na área biomédica. As suas propriedades anti-oxidantes, anti-microbianas, anti-inflamatórias, cicatrizante e de inibição da formação de biofilmes tornam a sua aplicação na odontologia particularmente interessante. Com este trabalho pretendeu-se rever a literatura existente sobre aplicações da quitosana na área odontológica. Palavras-chave

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“…Secondary infection of the root canal system can occur by organisms that were not initially present during the primary infection. Introduction of new organisms into the root canal can occur by contamination of irrigants, endodontic instruments [13]. Microorganisms can also enter through temporary restorative materials and obturated root canals when there is inadequate seal, fracture of tooth structure or a delay in placing a permanent restoration [14].…”

Section: Sudden Change In Environment -Change In Virulencementioning

confidence: 99%

Flare-Ups in Endodontics – A Review

S.R¹

2013

IOSR-JDMS

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Bacterial leakage in coronally unsealed root canals obturated with 3 different techniques

Cited by 94 publications

References 19 publications

Micro-CT assessment of the sealing ability of three root canal filling techniques

Micro-CT assessment of the sealing ability of three root canal filling techniques

A quitosana como biomaterial odontológico: estado da arte

Flare-Ups in Endodontics – A Review

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