Microbiological Sealing Analysis of a Tapered Connection and External Hexagon System

Costa, Gardel Nepomuceno; Martinez, Elizabeth Ferreira; Ruellas, Aluísio Martins de Oliveira; Peruzzo, Daiane Cristina; Joly, Júlio César; Napimoga, Marcelo Henrique

doi:10.1155/2017/3849085

Cited by 6 publications

(5 citation statements)

References 12 publications

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“…In this in vitro study, the effect of cycling loading on the microbial sealing potential and the presence of microgaps in the implant-abutment interface of tapered connection implant systems with an angulation of 11.5 were evaluated. A previous report (Costa et al, 2017) demonstrated an effective seal of such connection without mechanical cycling. The results of the present study showed that after mechanical cycling, the implant/abutment ensemble showed significantly fewer microgaps than the non-cycled samples, though no significant difference was observed between the cycled and non-cycled groups in terms of microbial sealing.…”

Section: Discussionmentioning

confidence: 93%

“…In a previous study conducted by Costa et al (2017), Titaoss® tapered implants (Intraoss), without the effect of mechanical cycling, were able to avoid bacterial leakage in vitro and showed superior results when compared to external hexagonal abutments. Therefore, in this study, mechanical force was applied simulating masticatory forces, in order to evaluate the bacterial sealing ability and maladjustment between the prosthetic abutment and the internal tapered connection implant.…”

Section: Introductionmentioning

confidence: 96%

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Influence of mechanical cycling in the microbiological seal and microgaps in tapered connection implants

2019

Aust. J. Basic & Appl. Sci

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Background: This study evaluated the bacterial seal and adaptation of the abutments in a tapered connection implant system (Titaoss, Intraoss, Brazil) by means of microbiological and morphological analysis after cyclic loading. Objectives: The hypothesis of the study was to evaluate if after cycling the adaptation between abutment and implant creates gap allowing the passage of microorganisms. Methods: Twelve implants and their respective prosthetic abutments/crowns were fixed with a screw under torque of 20N.cm. The gap between the abutment and the implant was measured after the initial torque with the aid of a stereomicroscope and then subjected to compressive loads of 120 N and 2 Hz. After cycling, a new microgap measurement was performed and the samples were immersed in Escherichia coli suspension and incubated at 37°C. After 14 days, the prosthetic abutments were separated from the respective implants, and the presence of bacterial infiltration was evaluated. For the statistical calculations, the Student t test, binomial and G tests were used at a significance level of 5%. Results: The results showed that the specimens submitted to compressive load showed significantly smaller microgaps between the abutment and implant significantly than the non-cycled samples (p = 0.032). There was no significant difference in bacterial leakage in the implant models studied, regardless of mechanical cycling (p = 0.296). Conclusion: The tapered connection implant system used showed an effective bacterial seal, regardless of mechanical cycling.

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Section: Discussionmentioning

confidence: 93%

Section: Introductionmentioning

confidence: 96%

Influence of mechanical cycling in the microbiological seal and microgaps in tapered connection implants

2019

Aust. J. Basic & Appl. Sci

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“…Higher stability under loading conditions has been reported for different internal connections compared to external connections, which, under functional loading, promotes micro-movements of the abutment and thus bacterial leakage. The performance of bridge rehabilitation was observed to be worse than that in single crown rehabilitations [7,[18][19][20][21].…”

Section: Internal Hexagonal Connectionmentioning

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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“…The Brazilian implant industry (Intraoss, Itaquaquecetuba, Brazil) has different implant abutment connections such as external connection, internal connection and tapered connection, all of them fabricated from grade 5 medical titanium. Previous reports that have evaluated implants of this company demonstrated an effective bacterial seal at the implant/abutment interface between an external hexagon and a tapered connection system [10]. Besides, the dental implant surface treatment positively affected the early events of the interaction between titanium and osteoblastic cells [11].…”

Section: Introductionmentioning

confidence: 99%

Survival rate of dental implants installed by residents attending an implantology Program in Brazil: a 52-month retrospective analysis

Kang

Smanio

Pelegrine

et al. 2022

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The aim of this study was to identify any associations between predictor variables, mainly risk factors and dental implant outcome performed by residents in Implantology. Dental records were reviewed from January 1, 2018, to December 31, 2020. The inclusion criteria was all implant surgery made using Intraoss brand. Data collected from the patients’ medical charts included: implant loss, gender, diabetes, smoking, continuous use of medication, type of implant connection system, implant position (maxilla or mandible), previous bone grafting and type of prosthetic provisioning (temporary prosthesis, immediate prosthesis or permanent prosthesis). It was evaluated the cumulative survival rate of 1,164 dental implants made by residents attending an implantology residency in a university setting. One thousand forty-eight dental implants were placed on 471 patients seen by residents. The cumulative survival rate was 2.5%. Furthemore, the association of implant losses to the variables tested using the chi-square and G tests showed no statistically significant association. Based on Kaplan-Meier curve analysis, with a 95% confidence interval up to 52 months of implant placement, it revealed that the overall survival rate was 90.5%. Therefore, this study showed high survival rates of implants installed by residents of implantology at Faculdade São Leopoldo Mandic using Intraoss implants. The implant failure was not correlated with any of the variables tested.

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Microbiological Sealing Analysis of a Tapered Connection and External Hexagon System

Cited by 6 publications

References 12 publications

Influence of mechanical cycling in the microbiological seal and microgaps in tapered connection implants

Influence of mechanical cycling in the microbiological seal and microgaps in tapered connection implants

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

Survival rate of dental implants installed by residents attending an implantology Program in Brazil: a 52-month retrospective analysis

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