BACKGROUND The Rustogi et al. Modified Navy (RMNPI) and Turesky et al Modification of the Quigley Hein (TQHPI) plaque indices are commonly used to measure plaque removal. This study evaluated the possible correlations of both indices using data relative to a single use assessment of plaque removal using commercially available toothbrushes. METHODS Single use crossover study designs have been ...

The aim of this study was to investigate, in vitro, the morphological characteristics of demineralized primary enamel subjected to brushing with a dentifrice with or without fluoride. In order to do so, 32 enamel blocks were divided in 4 different groups containing 8 blocks each. They were separately immersed in artificial saliva for 15 days. The experimental groups were: C - control; E - submi...

BACKGROUND Chewing-gum may serve as an effective oral hygiene device when brushing may not be possible. The aim of the present study was to evaluate the effect of chewing sugar-free gum twice a day after meals in addition to tooth brushing on dental plaque and interdental debris. METHODS Twenty four (12 males and 12 females aged 20-21 years) healthy third-year dental students participated in ...

BACKGROUND The authors compared the in vivo antimicrobial effects on microorganisms from dental plaque, saliva and the tongue in subjects who used a triclosan/copolymer dentifrice and a fluoride dentifrice (control). METHODS The authors assigned 15 subjects randomly to the control dentifrice or the triclosan/copolymer dentifrice for twice-daily use for one week. They collected samples of plaq...

Canal wall brushing, accomplished by a tractor-mounted custom-designed rotating metal brush, was an effective means of removing nuisance periphytic cyanobacterial growth and consequently reducing MIB and geosmin production in the Arizona Canal, a major water conveying open channel in the metropolitan Phoenix (Arizona) water supply system. On average, c. 80% of the periphyton biomass was removed...

INTRODUCTION Many epidemiological studies have suggested that human papillomavirus (HPV), especially type 16, is involved in the genesis of squamous cell carcinoma of the oral cavity and oropharynx, especially in young, non-smoking patients; thus, its detection in lesions in this region is important. OBJECTIVE To clarify the capacity of the brushing sampling method to detect the presence of H...

A common high level task for the user of complex modelling software is making comparisons between models. The differences between the current and previous models guide future modelling efforts and model acceptance. This paper explores an interactive graphical paradigm to support this task. The computer displays the state history—the series of states the system takes one—corresponds closely to a...

OBJECTIVE An earlier clinical study demonstrated that brushing with a commercial Arm & Hammer dentifrice containing baking soda physically removed significantly more plaque than brushing with either of two commercial dentifrices which did not contain baking soda. However, little has been done to confirm these results and to compare baking soda-containing dentifrices with more recently commercia...