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International Journal of Implant Dentistry
Fig. 2 | International Journal of Implant Dentistry

Fig. 2

From: Efficacy of electric-powered cleaning instruments in edentulous patients with implant-supported full-arch fixed prostheses: a crossover design

Fig. 2

Plaque areas before and after brushing and plaque removal rates. a All brushing instruments except for the manual toothbrush showed significant reduction of accumulated plaque in the fitting surfaces of implant-supported fixed dental prostheses. Note that the plaque areas before brushing did not differ significantly among the four instruments based on multiple comparison statistics. b No significant differences in plaque reduction were observed among the four instruments. *p <  0 .05; **p <  0.005

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