Leakage of Microbial Endotoxin through the Implant-Abutment Interface in Oral Implants: An In Vitro Study

Garrana, Rhoodie; Mohangi, Govindrau Udaibhan; Maló, Paulo; Nobre, Miguel de Araújo

doi:10.1155/2016/9219071

Cited by 7 publications

(7 citation statements)

References 6 publications

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“…Microbial and molecular leakage tests are frequentlypracticed implant leakage assessment methods 25) . Although these tests demonstrate the leaking nature of implants, there are some limitations of these methods that should be addressed.…”

Section: Discussionmentioning

confidence: 99%

The impact of Morse taper implant design on microleakage at implant-healing abutment interface

et al. 2022

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The microbial leakage at the implant-abutment interface (IAI) is one cause of peri-implant infection that puts long-term implant stability at risk. The present study compared two types of Morse taper implants in terms of sealing performance at the implanthealing abutment interface. Three implant systems, one of which exhibited a partial face-contact design (TSO) and the other two a line-contact design (TSM and BLT), were analyzed in vitro using two quantitative implant leakage measuring techniques: airinjection pressure measurement test and microbial examination. An in-house-developed device was used to determine implant leakage by recording the initial drop in pressure while injecting air through the implant. The microbial examination measured the absorbances of culture mediums in which the inoculated implants were contained. Significant difference was found between the partial face-and line-contact groups (p<0.001). Both tests revealed that partial face-contact implants are more prone to leakage than line-contact implants.

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Section: Discussionmentioning

confidence: 99%

The impact of Morse taper implant design on microleakage at implant-healing abutment interface

et al. 2022

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“…A. actinomycetemcomitans is also considered as being periodontopathogenic, although it is not included in any group [9,[12][13][14][15].…”

Section: Discussionmentioning

confidence: 99%

The Impact of Implant–Abutment Connection on Clinical Outcomes and Microbial Colonization: A Narrative Review

et al. 2020

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Introduction: Osseointegration are often suffering from oral conditions, especially, the micro gap at the implant–abutment connection represents a site for bacterial plaque aggregation, leading to increased inflammatory cells and causing peri-implantitis. Aim: The aim of this narrative review was to describe the different kinds of implant–abutment connections and their ability to reduce bacterial leakage and thus prevent peri-implantitis. Materials and methods: The following databases were consulted: Pubmed, Scopus, Cochrane Library, and Research gate and a total of 528 articles were found. After reading the abstract and titles, 473 items were excluded. The remaining articles (n = 55) were assessed for full-text eligibility. Thirty-three studies were included in the review. Results and Conclusions: We selected 22 clinical trials and 11 reviews, examining a total sample of 2110 implants. From the review, it was clear that there exists a relationship between the implant–abutment interface and bacterial leakage. All the connections presented an amount of micro-gap and bacterial micro-leakage, though conical and mixed connection systems seemed to behave better. Moreover, both connections seemed to have a better load distribution and the mixed system also had anti-rotational properties which are very useful during the positioning of the prosthesis.

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“…Vários autores concluíram que o desenho geométrico de uma conexão cônica não é capaz de vedar a interface entre as partes, mas pode diminuir ou ainda evitar a micromovimentação dos componentes protéticos, pelo travamento por fricção que acontece entre as partes já no interior dos implantes (CEHRELI et al, 2004;MERZ et al, 2000;SQUIER;PSOTER;TAYLOR, 2002) (DIBART et al, 2005;PAPPALARDO et al, 2007;GARRANA et al, 2016;(TESMER et al, 2009;STEINEBRUNNER et al, 2005;SUTTER, 1993;CHAPMAN;GRIPPO, 1996;D'ERCOLE et al, 2015) e que este íntimo contato e atrito entre as partes são provenientes de diferenças entre os ângulos das estruturas, fornecendo um contato íntimo melhor e com mais atrito (DIBART et al, 2005;RANIERI et al, 2015). Muitos outros autores, concluem que mesmo com tal adaptação entre as partes ainda assim haverá contaminação das conexões cônicas (SANTANA, 2007;FARIA, 2008;FREITAS, 2009;HARDER et al, 2010;DO NASCIMENTO et al, 2012;TRIPODI et al, 2012;MARTIN-GILI et al, 2015;DA SILVA-NETO, 2017) (PAPPALARDO et al, 2007;GARRANA et al, 2016).…”

Section: Ensaiounclassified

“…Muitas técnicas e materiais têm sido utilizados no intuito de avaliar o comportamento mecânico e biológico do microgap, tentando reduzí-lo. Vários estudos in vitro, avaliaram a relação entre o desenho do conjunto implante/componente protético com a quantidade de microorganismos que está presente na porção interna dos implantes (GUINDY et al, 1998); (AMARAL, 2003) (CRAVINHOS, 2003; (STEINEBRUNNER et al, 2005); (PROFF P, 2006) (PAPPALARDO et al, 2007) (DA SILVA-NETO et al, 2012; (MARTIN-GILI et al, 2015) SCARANO et al, 2015GARRANA et al, 2016;JORN et al, 2016;GADALLA;LUNDGREN, 2016).…”

Section: Introdução Introduçãounclassified

“…Há uma obsessão em vedar os microgaps existentes nas conexões, já que estes são impossíveis de serem fechados de forma mecânica (TSUGE et al, 2008), com a utilização de vários tipos de materiais (DUARTE et al, 2006), como o verniz de clorexidina e timol, anéis de silicone, solução de clorexidina a 2%, guta-percha e silicones de vedamento (BESIMO et al, 1999;DUARTE et al, 2006;GROENENDIJK et al, 2004;PROFF et al, 2006;RIMONDINI et al, 2001) e técnicas microbiológicas (FARIA, 2008); (GARRANA et al, 2016); (KOUTOUZIS et al, 2016), com ou sem a aplicação de cargas mecânicas ou térmicas (ASSENZA et al, 2003) (NASCIMENTO , 2012.…”

Section: Introdução Introduçãounclassified

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Análise microbiológica da vedação com selante industrial de <i>microgaps</i> nas diferentes conexões implantares: estudo <i>in vitro</i>

Tunes¹

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Tunes FSM. " Microbiological analysis of the seal with industrial sealant on the microgaps in the different implant connections: in vitro study" [Thesis]. São Paulo: Universidade de São Paulo, Faculdade de Odontologia; 2018. Original version. The use of dental implants and prosthetic components have become very feasible resources to solve simple and complex cases in rehabilitation dentistry. However, the implant component junction may present problems, such as the presence of a microgap between these components parts.Therefore, several materials have been tested in an attempt to obstruct this space, with controversial results. The objective of this study was to evaluate in vitro the behavior of an anaerobic monocomponent adhesive (Loctite® 510, Henkel Ltda), high resistance and inert characteristics, in the microgap seal preventing bacterial passage from the external side to the inner side of the assembly. A total of 90 implants were used, with hexagonal external connection (n = 30), internal hexagonal connection (n = 30) and internal conical connection (n = 30) divided into Control Group (n = 45). Implants were opened in laminar flow cabinet and each unit received 3µl of sterile BHI internally. On each unit a specific prosthetic component was screwed in for each brand and with torques recommended by the manufacturers with digital torque wrench. The sets of Test also received a thin layer of adhesive that was applied with microbrush between the parts; and all units of the Control and Test groups were sealed with provisional obturator material in their most coronal portion. Each set was immersed in 75 µl of Enterococcus faecalis (ATCC-29212) in mini-tubes to the limit between the implant / prosthetic component junction. All samples were incubated in a bacteriological incubator for 7, 14 and 28 days at 37 o C before being reopened. After the proposed period, the internal contents of the implants were collected with sterile paper cones, diluted and seeded in Petri dishes, incubated for 48 hours. There was a significant difference between the test and control groups in the hexagonal external connection group at all times (Fischer and Chi-square test, p ≤ 0.05). The anaerobic adhesive tested works as a barrier, not allowing the migration of bacteria into the internal environment of the implant / prosthetic component assembly.

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Leakage of Microbial Endotoxin through the Implant-Abutment Interface in Oral Implants: An In Vitro Study

Cited by 7 publications

References 6 publications

The impact of Morse taper implant design on microleakage at implant-healing abutment interface

The impact of Morse taper implant design on microleakage at implant-healing abutment interface

The Impact of Implant–Abutment Connection on Clinical Outcomes and Microbial Colonization: A Narrative Review

Análise microbiológica da vedação com selante industrial de <i>microgaps</i> nas diferentes conexões implantares: estudo <i>in vitro</i>

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