T. HE's research while affiliated with Procter & Gamble and other places

Publications (58)

Article
Full-text available
Objectives: The aim of these investigations was to assess the ability of two fluoride dentifrices to protect against the initiation and progression of dental erosion using a predictive in vitro erosion cycling model and a human in situ erosion prevention clinical trial for verification of effectiveness. Materials and methods: A stabilized stanno...
Article
This study investigated whether there was a difference in amounts of dentifrice ingested by children based on age using pea-sized instructions. The study had a randomized, single-blinded, 3-period, crossover design modelled after Barnhart et al. (1974) with one regular-flavored and two specially-flavored dentifrices used ad libitum. Subjects were e...
Article
Full-text available
To compare the enamel protection efficacy of a stabilized stannous fluoride (SnF2 ) dentifrice to a sodium fluoride (NaF)/triclosan dentifrice following acidic erosive challenge. In this in situ, randomized, controlled, double-blind, two-treatment, four-period crossover clinical trial, subjects wore an appliance fitted with human enamel samples 6 h...
Article
Bacteremia and systemic inflammatory markers are associated with periodontal and systemic diseases and may be linking mechanisms between these conditions. We hypothesized that in the development of gingival inflammation, systemic markers of inflammation and bacteremia would increase. To study the effect of bacteremia on systemic inflammatory marker...
Article
Background This in vitro study aimed to assess the ability and efficacy of HX-BGC, a novel bioactive glass-ceramic (SiO2-P2O5-CaO-Na2O-SrO), to reduce dentine tubule permeability.Methods Dentine discs from human third molars were etched and randomly allocated into five groups: Group 1 - distilled water; Group 2 - Sensodyne Repair toothpaste (contai...
Conference Paper
The assessment of the dentinal hypersensitivity usually depends on subjective responses to clinically applied stimuli and lack of standardized and quantified testing methods. Objective: This study is to apply standardized mechanical, thermal, and electrical stimuli on the teeth with dentinal hypersensitivity providing an objective evaluation meth...
Conference Paper
Objective: To compare the dentinal hypersensitivity relief benefits of two marketed desensitizing dentifrices over an 8-week period. Method: This study was a randomized, parallel group, controlled, 8-week clinical trial. Subjects reporting moderate dentinal hypersensitivity on 2 teeth (Schiff Index of 2 or 3 and Yeaple Probe 10g) were enrolled an...
Conference Paper
Objective: This meta-analysis was conducted to assess whether demographic parameters, behavioral factors or baseline stain levels impacted whitening dentifrice effectiveness in clinical trials with common study designs. Method: The pooled analysis was inclusive of all subjects in six clinical trials who were assigned a whitening dentifrice and ha...
Conference Paper
Objective: This meta-analysis was conducted to evaluate the safety of a 0.454% stannous fluoride dentifrice with sodium hexametaphosphate (SnF2 SHMP) under conditions of routine use from a diverse collection of clinical studies. Method: The meta-analysis consisted of data from 2664 healthy adult subjects who participated in 41 clinical studies. I...
Conference Paper
Objective: To evaluate the extrinsic stain prevention efficacy of a pyrophosphate containing whitening dentifrice relative to a negative control. Method: This was a 5-week treatment, parallel groups, double-blind, randomized and controlled clinical trial in which the whitening dentifrice (Crest 3DWhite Luxe®) was compared with a negative control...
Conference Paper
Objective: To compare the anti-erosion benefits of two marketed dentifrices in a 15 day in situ model. Method: The present study utilized a single centre, double blind, randomised, two-treatment, and four period crossover design. Thirty-seven subjects were enrolled and 33 completed the study. Each study period took place over a span of 15 days. S...
Conference Paper
Objective: A clinical study to evaluate a 5 week usage of stannous-based sodium fluoride toothpastes relative to a marketed positive control toothpaste on established gingivitis. Method: This was a randomized, double-blind, parallel-group, single-center five-week clinical study. A total of 94 healthy subjects with more than 25 gingival bleeding s...
Conference Paper
Objective: The present study evaluated the anti-plaque efficacy of stannous-based sodium fluoride toothpaste relative to negative control toothpaste, both products marketed in India, using a 4-day plaque model. Method: This was a controlled, double-blind, randomized, 2-treatment, 3-period, crossover 4-day partial brushing plaque study. Thirty-thr...
Article
In this study, the reflection properties of transparent conductive oxide (TCO) films i.e. aluminum doped zinc oxide (ZnO:Al) and boron doped zinc oxide (ZnO:B) films plus aluminum (Al) films or white polyvinyl butyral (PVB) foils, which are usually used as the combined back reflectors of thin film silicon solar cells, are investigated. Sputtered Zn...
Article
Full-text available
In this study, hydrogenated amorphous silicon (a-Si:H) single junction and amorphous/microcrystalline silicon tandem (a-Si:H/µc-Si:H) solar cells with different back-reflectors (BRs) are systematically investigated. A novel white polyvinyl butyral (PVB) foil was used as BR. In addition, the specular aluminum (Al) films and rough Al films were depos...
Article
To compare the anti-plaque efficacy of a stabilized 0.454% stannous fluoride (referred to as SnF2) dentifrice versus a 0.3% triclosan dentifrice formulated with a copolymer and sodium fluoride (referred to as triclosan). The study had a randomized, double-blind, two-treatment, parallel-group design, and compared plaque reduction from baseline after...
Conference Paper
Objective: A clinical study evaluated three months use of 0.1% cetylpyridinium chloride rinse on established gingivitis. Method: Healthy adult subjects with mild-to-moderate gingivitis were enrolled in a randomized controlled trial comparing an experimental rinse with 0.1% cetylpyridinium chloride (CPC) and 1.5% hydrogen peroxide to a negative co...
Conference Paper
Objectives: To compare the oral malodor reduction efficacy of a stannous containing sodium fluoride dentifrice versus a marketed dentifrice (YunNanBaiYao) using Halimeter as the measurement. Methods: 36 subjects who met study entrance criteria were enrolled into a controlled, randomized, double-blind, 2-treatment, 4-period, and cross-over stu...
Conference Paper
Objective: The present study evaluated the anti-plaque efficacy of an experimental 0.454% stannous fluoride dentifrice relative to marketed positive and negative controls using a 4-day plaque model. Method: This was a controlled, double-blind, randomized, 3-treatment, 3-period, cross-over 4-day partial brushing plaque study. A total of 32 subject...
Conference Paper
Objective: To evaluate the anti-plaque efficacy of a 0.454% stannous fluoride dentifrice relative to a 0.3% triclosan dentifrice in a 6-week clinical study. Method: This study utilized a randomized, two-treatment, double-blinded, parallel group design. Subjects who met the entrance criteria were randomly assigned to either the 0.454% highly b...
Article
Polycrystalline silicon (Poly-Si) thin films were successfully fabricated on soda-lime glass substrate by aluminum induced crystallization (AIC) process. In order to analyze non-uniform film by AIC, a new method to evaluate the poly-Si thin film average crystalline volume fraction is proposed, based on the optical microscope and Raman spectroscopy...
Article
The stability of transparent conductive oxide (TCO) films of silicon thin-film solar cells is important to the device performance. As an important TCO material, the boron-doped zinc oxide (ZnO:B) films are grown by a low-pressure chemical vapor deposition (LPCVD) technique. The stability of ZnO:B films with different doping levels is systematically...
Conference Paper
Objective: The aim of the present clinical trial is to assess the anti-gingivitis effects of a 0.454% stannous fluoride dentifrice relative to a positive control dentifrice in a 2-month gingivitis treatment study. Method: This randomized, positive-controlled, double-blind, parallel-group study enrolled 150 healthy adult volunteers assigned equall...
Article
Zinc oxide thin films with different boron doping levels (ZnO:B) are prepared by low pressure chemical vapor deposition (LPCVD) technique. All films here exhibit a pyramid-like surface texture. Stability of the ZnO:B films is systematically investigated through a post heat treatment at ambient temperatures of 300 °C and 250 °C for different duratio...
Conference Paper
Objectives: to evaluate the instant and rapid sensitivity relief effect of a stannous containing sodium fluoride dentifrice relative to a negative control. Methods: A total of eighty (80) qualified subjects were enrolled on baseline visit, they were randomized into one of 2 treatments, all eighty subjects completed the research and were evaluable...
Conference Paper
Objective: Dental plaque is the primary cause of gingivitis. Plaque control and prevention of gingivitis is the main goal of the prevention of periodontal diseases. The present study evaluated the anti-plaque efficacy of a 0.454% stannous fluoride dentifrice using a 4-day plaque model. Method: This was a controlled, double-blind, randomized, 2-tr...
Conference Paper
Objective: To compare the efficacy of a 0.454% stannous fluoride dentifrice and a 0.3% triclosan dentifrice in the reduction of dental plaque over a 6-week period. Method: This study utilized a randomized, two-treatment, double-blinded, parallel group design. Subjects who met the entrance criteria were randomly assigned to 6 weeks’ unsupervis...
Conference Paper
Objectives: To evaluate the anti-plaque efficacy of two marketed dentifrice products. Methods: This was a controlled, randomized, double-blind, two-treatment, cross-over, 4 day partial brushing plaque study comprised of four study periods. Test dentifrice products included Crest® Pro-Health® containing 0.454% stannous fluoride and Colgate Total® co...
Conference Paper
Objectives: The present clinical trial compared the treatment of gingivitis for a 0.454% stannous fluoride dentifrice relative to a positive control dentifrice after 2 months use. Methods: This randomized, positive-controlled, double-blind, parallel-group study enrolled 200 healthy adult volunteers assigned equally to either a highly bioavailable 0...
Conference Paper
Objectives: To evaluate the impact of an oral health education program on study participants and their family members during a dentifrice study. Methods: The program was part of a longitudinal study combining oral health data collection and oral health promotion in an elementary school system in Guatemala. A modified Behavior Risk Factor Surveillan...
Conference Paper
Objective: Dental plaque is the primary cause of gingivitis. This study was to assess the anti-plaque efficacy of two therapeutic dentifrices using Digital Plaque Image Analysis (DPIA) Measures. Method: This study employed a 2-treatment, parallel group, double blind, and randomized clinical study design. Ninety-six healthy adult subjects were e...
Conference Paper
Objectives: A multi-study surface-specific analysis was performed to compare plaque efficacy of two power brushes with different brush heads. Methods: Two single-brushing studies and a 12-week multiple-use study were re-analyzed separately on lingual and buccal surfaces based on statistically significant brush effects for whole mouth plaque. All...
Conference Paper
Objectives: To evaluate the onset of sensitivity relief for an experimental 0.454% stannous fluoride dentifrice relative to a regular sodium fluoride negative control over a 2-week period. Methods: This study was a randomized, parallel group, negative-controlled, 2-week clinical trial. After institutional review and consent, subjects reporting dent...
Conference Paper
Objective: to evaluate the de-sensitizing effect of a stannous containing sodium fluoride toothpaste relative to a negative control. Methods: Eighty subjects who met inclusion criteria were enrolled into a controlled and randomized, double-blind parallel 8-week study. Test products included a stannous-containing sodium fluoride (1450ppm) dentifrice...
Conference Paper
Objective: This study was to evaluate the efficacy of a stannous containing fluoride toothpaste in the control of plaque and gingivitis as compared to a commercially available MFP dentifrice. Methods: One hundred subjects who met inclusion criteria were enrolled into the controlled, randomized, double-blind and parallel 12-week study. Subjects were...
Conference Paper
Objective: to evaluate the de-sensitizing effect of a stannous containing sodium fluoride toothpaste relative to a negative control. Methods: Eighty subjects who met inclusion criteria were enrolled into a controlled and randomized, double-blind parallel 8-week study. Test products included a stannous-containing sodium fluoride (1450ppm) dentifrice...
Conference Paper
Objectives: The 4-day plaque model has been well established in the literature to assess the anti-plaque efficacy of oral hygiene products, and this research was conducted to systematically evaluate the anti-plaque efficacy of 0.454% stannous fluoride dentifrices. Methods: A meta-analysis was conducted using an inclusive dataset from 3 clinical tri...
Conference Paper
Objectives: To assess the anti-erosion properties of an experimental stannous containing sodium fluoride dentifrice relative to a conventional dentifrice in a 15 day in situ model. Methods: The present study utilized a single centre, double blind, randomised, supervised, two-treatment, and four period crossover design. Thirty-five healthy adults we...
Conference Paper
Objectives: To evaluate the effect of an experimental 0.454% stannous fluoride dentifrice in the reduction of dentinal hypersensitivity relative to a positive control. Methods: This was a two-week, parallel-group, examiner-blind, randomized and controlled clinical trial. A total of 80 healthy adults with at least two teeth demonstrating moderate hy...
Conference Paper
Objectives: To evaluate the extrinsic stain removal benefit of a novel 0.454% Stannous Fluoride (SnF2)/sodium hexametaphosphate dentifrice. Methods: This was a 6-week, parallel groups, double-blind, randomized and controlled clinical trial in which the SnF2 dentifrice (Crest Pro-health Clinical Gum Protection) was compared with a marketed positive...
Conference Paper
Objectives: Supra-gingival dental calculus formation is a common problem for consumers. The present study was undertaken to evaluate the anti-calculus efficacy of a 0.454% Stannous Fluoride (SnF2)/sodium hexametaphosphate dentifrice relative to a marketed positive control dentifrice. Methods: This was a 3-month, parallel-group, double-blind, rand...
Conference Paper
Objectives: To evaluate the effect of a Stannous-containing sodium fluoride dentifrice in the reduction of dentinal hypersensitivity relative to a negative control. Methods: This was a 3-day, parallel-group, examiner-blind, randomized and controlled clinical trial. A total of 88 healthy adults with at least two teeth demonstrating moderate hypersen...
Conference Paper
Objectives: The present study evaluated the anti-plaque efficacy of various dentifrices using a 4-day plaque model. Methods: This was a controlled, double-blind, randomized, 4-treatment, 4-period, cross-over 4-day partial brushing plaque study. Thirty-one subjects were enrolled into the study. Test products included a novel 0.454% stannous fluoride...
Article
To evaluate the efficacy ofa stannous fluoride dentifrice as compared to a negative control dentifrice in the reduction of dentinal hypersensitivity after immediate use, and after three days and two weeks of use. This was a controlled, randomized, examiner-blind, two-treatment, parallel group study conducted among healthy adult male and female subj...
Conference Paper
Objectives: Dental plaque is the primary cause of gingivitis. This study was to apply Digital Plague Image Analysis Repeat Measures (DPIARM) toward the assessment of anti-plaque efficacy of two oral hygiene regimens. Methods: This study employed a 2-treatment, 3-period crossover design. Sixteen healthy adult subjects were enrolled into the study. T...
Conference Paper
Objectives: Control of dental plaque is an important aspect of oral health maintenance. Patients undergoing orthodontic treatment with fixed appliances are at increased risk for plaque accumulation and for developing caries and gingivitis. This study was to evaluate the anti-plaque properties of a rotation/oscillation power toothbrush relative to a...
Conference Paper
Objectives: To determine if an experimental stannous containing sodium fluoride dentifrice provides greater enamel protection to erosion than a conventional dentifrice in a 15 day in situ model. Methods: A single, centre, double blind, randomised, supervised, two-treatment crossover study was undertaken. 35 subjects were recruited to a 4 period in...
Conference Paper
Objectives: Two clinical trials were independently conducted to compare the extrinsic stain removal efficacy of a stannous-containing sodium fluoride dentifrice in a formulation with high cleaning silica, relative to a positive control whitening dentifrice over a 2-week period. Methods: The studies utilized a randomized, two-week, double-blind, par...
Conference Paper
Objectives: To conduct a meta-analysis of four independent studies comparing the breath protection efficacy of a stannous-containing sodium fluoride dentifrice versus a negative control using a halimeter. Methods: In this meta-analysis, four single-center, randomized, crossover clinical trials were conducted independently in Beijing (1), Shanghai (...
Conference Paper
Objectives: To evaluate the anti-plaque efficacy of a sodium fluoride/stannous dentifrice using a 4-day partial brushing plaque model. Methods: This was a controlled, double-blind, randomized, 2-treatment, 4-period, cross-over 4-day lingual brushing plaque study. Test products included a sodium fluoride/stannous dentifrice (Blend-A-Med Complete) an...
Conference Paper
Objectives: To compare the anti-plaque efficacy of a stannous-containing sodium fluoride dentifrice in a 4-day plaque study relative to a positive control dentifrice. Methods: Thirty subjects were enrolled into a controlled, double-blind, randomized, 2-treatment, 4-period, cross-over 4-day partial brushing plaque study. Test products included a sta...
Conference Paper
Objectives: Four-day partial brushing plaque model has been used successfully to demonstrate the anti-plaque efficacy of various oral hygiene products, including mouth rinses and dentifrices. The present study was conducted to evaluate the anti-plaque effect of a stannous-containing sodium fluoride dentifrice relative to a marketed anti-gingivitis...
Conference Paper
Objective: The objective of the study was to evaluate the anti-gingivitis and anti-plaque effects of a sonic rechargeable toothbrush relative to a manual toothbrush using a gingivitis treatment model. Methods: This was a randomized, examiner blind, two-treatment, four-week, parallel group, controlled clinical study. A total of 132 healthy adult sub...
Conference Paper
Objectives: To evaluate the extrinsic stain profiles of Stannous containing dentifrice prototypes when compared to controls. Methods: This was a 5-week, parallel groups, double-blind, randomized and controlled clinical trial in which two stannous containing dentifrice prototypes were compared to two controls: a marketed triclosan dentifrice (Colgat...
Conference Paper
Objectives: The four-day plaque model has been well established in the literature to assess the anti-plaque efficacy of oral hygiene products, including mouth rinses and dentifrices. The present study was conducted to evaluate the anti-plaque effect of 0.454% stannous fluoride dentifrices using a lingual brushing 4-day plaque model. Methods: This r...
Conference Paper
Objectives: The present study evaluated the anti-plaque efficacy of various dentifrices using a 4-day plaque model. Methods: This was a controlled, double-blind, randomized, 4-treatment, 4-period, cross-over 4-day partial brushing plaque study. Test products included two stannous containing dentifrice prototypes, a triclosan containing marketed den...

Citations

... Arginine is a positively charged amino acid that has a strong affinity to the dentine surface [56,114]. It improves the attachment of calcium to the tooth surface and promotes calcium carbonate precipitation [49,115,116]. This precipitation layer enhances the resistance of dental hard tissue to acids [115,116]. ...
... Im Falle der Verwendung einer Zahnpasta mit Fluoridzusatz ist die genaue Dosierung der empfohlenen Zahnpasta- [11]). Bei jüngeren Kindern werden verschluckte Anteile der verwendeten Zahnpastamenge von 64-84 % mit eineinhalb bis zweieinhalb Jahren [6] und 65 % bei Zweijährigen berichtet [12]. ...
... The mean MeHg% in muscle of all fish species was 37%, with a range of 3.0%-97%, in which most of fish species were less than 50%. This result was significantly lower than that reported 90% in America or Europe aquatic systems (Khaniki et al. 2005;Perrot et al. 2010), and comparable with other Chinese lakes/reservoirs, such as the Hongfeng Reservoir, Baihua Resevoir, Hongjiadu Reservoirs, Dongfeng Reservoirs, and Wujiangdu Reservoirs along Wujiang River basin, Southwest of China (He et al. 2010;Jiang et al. 2010;Liu et al. 2012;Yan et al. 2008;Yao et al. 2010). In addition, the trophic magnification factor of Hg (0.08 for THg and 0.10 for MeHg) was also relatively low in comparison with other aquatic systems from America and Canada (0.13-0.29) (Clayden et al. 2013;Kidd et al. 2012). ...
... Stannous ions in these products have a higher affinity for mineral contents than organic contents [15]. These stannous ions interact with hydroxyapatite and fluoride and form a layer of Sn 2 OHPO 4 , Sn 3 F 3 PO 4 , Ca (SnF 3 ) 2 and CaF 2 on the tooth surface [36,[46][47][48][49]. This layer is more stable and acidresistant than the layer formed after NaF application alone [15,36,46]. ...
... This chronic, multifactorial disease is characterized by gingival inflammation and alveolar bone loss (3). Periodontitis can trigger an immune-inflammatory response that ultimately leads to a non-reversible change of bone supporting tissues, resulting in progressive destruction of alveolar bone and finally tooth loss (4). Periodontitis has also been reported to be associated with the development of several systemic diseases, such as rheumatoid arthritis, psoriasis, systemic sclerosis, Alzheimer's disease and cardiovascular diseases (CVD) (5). ...
... A new type of bioactive glass-ceramic, named Huaxi bioactive glass-ceramic (HX-BGC, consists of SiO 2 , P 2 O 5 , Na 2 O and SrO) which contains strontium has recently been invented by Sichuan University and used in treating dental hypersensitivity [7]. With the addition of strontium, HX-BGC can suppress acid production and has potential inhibitory effect on the growth of cariogenic bacteria [8]. ...
... Wszystkie badania włączone w metaanalizy zebrane w tabeli 2 i dotyczące hamującego rozwój płytki działania SnF 2 [15][16][17][18][22][23][24][25] były prowadzone w równoległym schemacie randomizacji. Metaanaliza Barkera et al. [26] trzech badań w naprzemianległym (cross-over) schemacie randomizacji pokazuje znaczącą o 27% większą redukcję płytki poprzez ocenę TMQHPI w całej jamie ustnej i o 31% na powierzchniach językowych po zastosowaniu pasty ze stabilizowanym SnF 2 w porównaniu z pastą stanowiącą kontrolę negatywną. Brakuje badań mogących być podstawą metaanalizy hamowania przez omawiany antyseptyk rozwoju płytki nazębnej poprzez najdokładniejszy wskaźnik RMNPI, pozwalający dodatkowo na ocenę efektu inhibitora płytki na międzystycznych powierzchniach zębów, także po zastosowaniu szczoteczek elektrycznych. ...
... However white paint is normally used for a large scale production, but silver as a back reflector is widely studied. The enhancement efficiency when studied with the different type of antireflection coating PVB has to be 8.3 % for a-Si:H solar cell whilst 10.1 % enhancement is seen with an a-Si:H/mc-Si:H tandem solar cell (Moulin et al. 2013;Zhu et al. 2013). ...
... In general, high refl ective metals like Al, Ag fi lms, or distributed Bragg refl ectors are applied as back refl ectors in fl at thin-fi lm a -Si:H solar cells so as to increase the optical path length in the absorbing layer. [ 25 ] However, in this tubular cell scheme, despite the absence of back refl ector, the unabsorbed light would pass through and arrive into the inside of the tube. The entered light (I, II, and III in Figure 1 c) will be trapped in the tube and eventually absorbed by the solar cell directly or after multiple refl ections. ...
... For transparent conducting oxides based on ZnO, n-type doping is easier in contrast to p-type doping, which is technologically more challenging [22]. For transparent conducting oxides (TCO) application, group 13 elements such as boron (B) [23], aluminum (Al) [24], gallium (Ga) [25] and indium (In) [26] were used for ZnO doping in order to improve its electrical conductivity. Among these elements, aluminum (Al) represents distinct advantages over the other doping materials due to its low cost, non-toxicity, and most importantly its high transparency in the visible and near-infrared spectral region as well as its low electrical resistivity [27]. ...