In Vitro Evaluation of Bacterial Leakage at Implant-Abutment Connection: An 11-Degree Morse Taper Compared to a Butt Joint Connection
Background and Aim. The geometry of implant-abutment interface (IAI) affects the risk of bacterial leakage and invasion into the internal parts of the implant. The aim of this study was to compare the bacterial leakage of an 11-degree Morse taper IAI with that of a butt joint connection. Materials a...
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| Format: | Article |
| Language: | English |
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Wiley
2016-01-01
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| Series: | International Journal of Biomaterials |
| Online Access: | http://dx.doi.org/10.1155/2016/8527849 |
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| author | Hooman Khorshidi Saeed Raoofi Afagh Moattari Atoosa Bagheri Mohammad Hassan Kalantari |
| author_facet | Hooman Khorshidi Saeed Raoofi Afagh Moattari Atoosa Bagheri Mohammad Hassan Kalantari |
| author_sort | Hooman Khorshidi |
| collection | DOAJ |
| description | Background and Aim. The geometry of implant-abutment interface (IAI) affects the risk of bacterial leakage and invasion into the internal parts of the implant. The aim of this study was to compare the bacterial leakage of an 11-degree Morse taper IAI with that of a butt joint connection. Materials and Methods. Two implants systems were tested (n=10 per group): CSM (submerged) and TBR (connect). The deepest inner parts of the implants were inoculated with 2 μL of Streptococcus mutans suspension with a concentration of 108 CFU/mL. The abutments were tightened on the implants. The specimens were stored in the incubator at a temperature of 37°C for 14 days and the penetration of the bacterium in the surrounding area was determined by the observation of the solution turbidity and comparison with control specimens. Kaplan-Meier survival curve was traced for the estimation of bacterial leakage and the results between two groups of implants were statistically analyzed by chi-square test. Results. No case of the implant system with the internal conical connection design revealed bacterial leakage in 14 days and no turbidity of the solution was reported for it. In the system with butt joint implant-abutment connection, 1 case showed leakage on the third day, 1 case on the eighth day, and 5 cases on the 13th day. In total, 7 (70%) cases showed bacterial leakage in this system. Significant differences were found between the two groups of implants based on the incidence of bacterial leakage (p<0.05). Conclusion. The 11-degree Morse taper demonstrated better resistance to microbial leakage than butt joint connection. |
| format | Article |
| id | doaj-art-79988b7de8964540ab09a98a784247c2 |
| institution | Kabale University |
| issn | 1687-8787 1687-8795 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Biomaterials |
| spelling | doaj-art-79988b7de8964540ab09a98a784247c22025-02-03T07:26:08ZengWileyInternational Journal of Biomaterials1687-87871687-87952016-01-01201610.1155/2016/85278498527849In Vitro Evaluation of Bacterial Leakage at Implant-Abutment Connection: An 11-Degree Morse Taper Compared to a Butt Joint ConnectionHooman Khorshidi0Saeed Raoofi1Afagh Moattari2Atoosa Bagheri3Mohammad Hassan Kalantari4School of Dentistry, Shiraz University of Medical Sciences, Shiraz, IranSchool of Dentistry, Shiraz University of Medical Sciences, Shiraz, IranSchool of Medicine, Shiraz University of Medical Sciences, Shiraz, IranSchool of Dentistry, Shiraz University of Medical Sciences, Shiraz, IranSchool of Dentistry, Shiraz University of Medical Sciences, Shiraz, IranBackground and Aim. The geometry of implant-abutment interface (IAI) affects the risk of bacterial leakage and invasion into the internal parts of the implant. The aim of this study was to compare the bacterial leakage of an 11-degree Morse taper IAI with that of a butt joint connection. Materials and Methods. Two implants systems were tested (n=10 per group): CSM (submerged) and TBR (connect). The deepest inner parts of the implants were inoculated with 2 μL of Streptococcus mutans suspension with a concentration of 108 CFU/mL. The abutments were tightened on the implants. The specimens were stored in the incubator at a temperature of 37°C for 14 days and the penetration of the bacterium in the surrounding area was determined by the observation of the solution turbidity and comparison with control specimens. Kaplan-Meier survival curve was traced for the estimation of bacterial leakage and the results between two groups of implants were statistically analyzed by chi-square test. Results. No case of the implant system with the internal conical connection design revealed bacterial leakage in 14 days and no turbidity of the solution was reported for it. In the system with butt joint implant-abutment connection, 1 case showed leakage on the third day, 1 case on the eighth day, and 5 cases on the 13th day. In total, 7 (70%) cases showed bacterial leakage in this system. Significant differences were found between the two groups of implants based on the incidence of bacterial leakage (p<0.05). Conclusion. The 11-degree Morse taper demonstrated better resistance to microbial leakage than butt joint connection.http://dx.doi.org/10.1155/2016/8527849 |
| spellingShingle | Hooman Khorshidi Saeed Raoofi Afagh Moattari Atoosa Bagheri Mohammad Hassan Kalantari In Vitro Evaluation of Bacterial Leakage at Implant-Abutment Connection: An 11-Degree Morse Taper Compared to a Butt Joint Connection International Journal of Biomaterials |
| title | In Vitro Evaluation of Bacterial Leakage at Implant-Abutment Connection: An 11-Degree Morse Taper Compared to a Butt Joint Connection |
| title_full | In Vitro Evaluation of Bacterial Leakage at Implant-Abutment Connection: An 11-Degree Morse Taper Compared to a Butt Joint Connection |
| title_fullStr | In Vitro Evaluation of Bacterial Leakage at Implant-Abutment Connection: An 11-Degree Morse Taper Compared to a Butt Joint Connection |
| title_full_unstemmed | In Vitro Evaluation of Bacterial Leakage at Implant-Abutment Connection: An 11-Degree Morse Taper Compared to a Butt Joint Connection |
| title_short | In Vitro Evaluation of Bacterial Leakage at Implant-Abutment Connection: An 11-Degree Morse Taper Compared to a Butt Joint Connection |
| title_sort | in vitro evaluation of bacterial leakage at implant abutment connection an 11 degree morse taper compared to a butt joint connection |
| url | http://dx.doi.org/10.1155/2016/8527849 |
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