Reducing bacterial counts around the abutment following professional mechanical plaque removal at the implant bridge: A randomized crossover comparison of removing or not removing the superstructure

The purpose of this study was to determine whether removing the superstructure of the implant bridge in cases of full-arch implant restorations for edentulous atrophic arches at the abutment level during professional mechanical plaque removal (PMPR) affects bacterial counts. This crossover clinical...

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Veröffentlicht in:Journal of prosthodontic research 2021-01, Vol.65 (1), p.91-96
Hauptverfasser: Arai, Yoshiaki, Inanobe-Takatsuka, Mutsumi, Takashima, Makiko, Ogawa, Shin, Kawamura, Atsushi, Nohno, Kaname, Uoshima, Katsumi
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Sprache:eng
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Zusammenfassung:The purpose of this study was to determine whether removing the superstructure of the implant bridge in cases of full-arch implant restorations for edentulous atrophic arches at the abutment level during professional mechanical plaque removal (PMPR) affects bacterial counts. This crossover clinical trial included 20 patients who received screw-retained prostheses at the abutment level. Patients were randomly assigned to two groups and received PMPR with or without removal of the superstructure. After a three-month washout period, the type of treatment was reversed between the groups. Bacterial counts around the cylinder and abutment were measured and compared before and after PMPR. Bacterial numbers around the cylinder and abutment were significantly reduced after PMPR as compared with before PMPR regardless of whether the superstructure was removed (p 10 × 105 cfu/ml, bacterial numbers were not reduced to
ISSN:1883-1958
2212-4632
1883-9207
DOI:10.2186/jpr.jpor_2019_431