In Vitro Microbiological Bacterial Seal Analysis of the Implant/Abutment Connection in Morse Taper Implants: A Comparative Study Between 2 Abutments

Deconto, Marco Antonio; Salvoni, Alexander D'Alvia; Wassall, Thomaz

doi:10.1097/id.0b013e3181cc48b1

Cited by 17 publications

(26 citation statements)

References 9 publications

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“…These results showed that for the studied system, the maximum volume is around 0.5 µL. Other studies evaluating Morse tapered systems used 0.1 µL to 0.5 µL of volume inoculation 2,[4][5]7 . However, only two studies reported the evaluation of the best inner volume for the studied system and used the same volume for different conical systems [4][5] .…”

Section: Discussionmentioning

confidence: 57%

“…Escherichia coli strain ATCC 35218 was selected for bacterial microleakage evaluation because it is a facultative anaerobic bacterium, able to survive in adverse situations and has a good motility, and has been used in other in vitro tests 2,5,7,[13][14] . This bacterium was cultivated in brain heart infusion broth -BHI (Biolife, Milano, Italy) for 24 h in an incubator at 37 °C (Biomatic, Porto Alegre, RS, Brazil).…”

Section: Methodsmentioning

confidence: 99%

“…Two-piece implants have a microgap depending on the interface type or system, but presence of fluid flow at this interface and its relationships are very variable [2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18] . This has been correlated to the presence of bacterial infiltration and inflammatory cells that may lead to bone loss around this area 19 .…”

Section: Introductionmentioning

confidence: 99%

“…This has been explained by the stress distribution of the implant's long axis during function. The greater stability of the soft tissues provided by the tapered abutment design and its reduced diameter relative to the platform and absence of abutment micromobility by the self-locking feature reduces bacterial leakage at the interface or even prevents it [3][4][5][6][7] .…”

Section: Introductionmentioning

confidence: 99%

“…In vitro bacterial studies at the I-A interface of Morse taper implants have attempted to assess the actual advantage of mechanical locking of these joints, but variable results were found [2][3][4][5][6][7][8]18 . These variations may be related to methodological bias in the tests such as: holding implants with forceps; hand inoculation of the bacterial suspension into the implants; using one single torquemeter for all samples; failure to measure the inner volume of the implant; using a higher amount of bacterial suspension than should be used; type of bacteria and its viability within the study conditions, and the sterile technique used when studying the inward flow from the outer part of the implant 15 .…”

Section: Introductionmentioning

confidence: 99%

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Bacterial microleakage at the implant-abutment interface in Morse taper implants

Silva-Neto¹,

Majadas²,

Prudente³

et al. 2014

Braz. J. Oral Sci.

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Aim: To evaluate the microleakage at the implant-abutment (I-A) interface of Morse tapered implants inoculated with different volumes of bacterial suspension. Methods: Morse tapered I-A sets were selected and divided in two groups depending on the type of abutment: passing screw (PS) and solid (S), and then subdivided into four subgroups (n=6) according to the suspension volume: PS1: 0.1 µL; PS3: 0.3 µL; PS5: 0.5 µL; PS7: 0.7 µL; S1: 0.1 µL; S3: 0.3 µL; S5: 0.5 µL and S7: 0.7 µL. A control test was performed to verify the presence of external contamination during the inoculation and the implants were incubated for microbiological analysis. The microleakage was evaluated every 24 h for 7 days by the clarity of solution. After this period, the implants were disassembled for confirmation of bacterial viability. Results: All the specimens with 0.7 µL and one sample of S5 presented turbidity in the control test indicating external contamination, and were excluded from the study. After 7 days of observation, none of the specimens presented positive results for microleakage and the bacterial viability was confirmed in all specimens. The 0.1 µL and 0.3 µL volumes did not present bacterial microleakage, meaning that these volumes may be inadequate for analysis. Conclusions: None of the sets evaluated showed bacterial microleakage at the I-A interface and the volume of 0.7 µL exceeded the internal capacity of the implants.

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Section: Discussionmentioning

confidence: 57%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Bacterial microleakage at the implant-abutment interface in Morse taper implants

Silva-Neto¹,

Majadas²,

Prudente³

et al. 2014

Braz. J. Oral Sci.

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Performance of conical abutment (Morse Taper) connection implants: A systematic review

Schmitt

Nogueira-Filho

Tenenbaum

et al. 2013

J Biomedical Materials Res

204

182

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In this systematic review, we aimed to compare conical versus nonconical implant-abutment connection systems in terms of their in vitro and in vivo performances. An electronic search was performed using PubMed, Embase, and Medline databases with the logical operators: "dental implant" AND "dental abutment" AND ("conical" OR "taper" OR "cone"). Names of the most common conical implant-abutment connection systems were used as additional key words to detect further data. The search was limited to articles published up to November 2012. Recent publications were also searched manually in order to find any relevant studies that might have been missed using the search criteria noted above. Fifty-two studies met the inclusion criteria and were included in this systematic review. As the data and methods, as well as types of implants used was so heterogeneous, this mitigated against the performance of meta-analysis. In vitro studies indicated that conical and nonconical abutments showed sufficient resistance to maximal bending forces and fatigue loading. However, conical abutments showed superiority in terms of seal performance, microgap formation, torque maintenance, and abutment stability. In vivo studies (human and animal) indicated that conical and nonconical systems are comparable in terms of implant success and survival rates with less marginal bone loss around conical connection implants in most cases. This review indicates that implant systems using a conical implant-abutment connection, provides better results in terms of abutment fit, stability, and seal performance. These design features could lead to improvements over time versus nonconical connection systems.

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Assessment of lipopolysaccharide microleakage at conical implant-abutment connections

et al. 2011

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In Vitro Microbiological Bacterial Seal Analysis of the Implant/Abutment Connection in Morse Taper Implants: A Comparative Study Between 2 Abutments

Abstract: We concluded that there was no statistically significant difference between the 2 models of abutment in an in vitro bacterial seal analysis.

Cited by 17 publications

References 9 publications

Bacterial microleakage at the implant-abutment interface in Morse taper implants

Bacterial microleakage at the implant-abutment interface in Morse taper implants

Performance of conical abutment (Morse Taper) connection implants: A systematic review

Assessment of lipopolysaccharide microleakage at conical implant-abutment connections

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