Clinical and laboratory evaluation of powered electric toothbrushes: laboratory determination of relative abrasion of three powered toothbrushes.
Previously established data on average forces applied to various brushing instruments during in vivo toothbrushing were incorporated into a laboratory abrasion model. The apparatus included a specially constructed and standardized brushing machine and utilized an acrylic resin substrate. Three powered brushing instruments (Rota-dent, Interplak and Braun Oral-B Plaque Remover) and a manual toothbrush (Oral-B P40), were compared in this model. The system demonstrated excellent precision and could distinguish between brushing instruments with as little as 10% difference in abrasivity. It was found that brushing abrasivity increased in the order of Rota-dent < Braun < Interplak.
McLey
L
L
Creighton University School of Dentistry, Omaha, Nebraska, USA.
Boyd
R L
RL
Sarker
S
S
D000180:Acrylic Resins; D000704:Analysis of Variance; D003799:Dental Stress Analysis; D003802:Dentifrices / Q000009:adverse effects; D004560:Electricity; D004867:Equipment Design; D013499:Surface Properties; D014072:Tooth Abrasion / Q000209:etiology*; D014099:Toothbrushing / Q000009:adverse effects* / Q000295:instrumentation*
D000180:Acrylic Resins; D003802:Dentifrices