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de Wijk, R.A. (author), Prinz, J.F. (author), Engelen, L. (author), Weenen, H. (author), TNO Voeding (author)The role of salivary α-amylase in odour, flavour, and oral texture sensations was investigated in two studies in which the activity of salivary amylase present in the mouth of human subjects was either increased by presenting custards with added α-amylase or decreased by presenting custards with added acarbose, an amylase inhibitor. For starch...article 2004
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Krul, C.A.M. (author), Zeilmaker, M.J. (author), Schothorst, R.C. (author), Havenaar, R. (author), TNO Voeding (author)Human exposure to carcinogenic N-alkylnitrosamines can occur exogenously via food consumption or endogenously by formation of these compounds through nitrosation of amine precursors. Information on the intragastric formation of NDMA from complex mixtures of precursors and inhibitors in humans is not available. In this study the formation of N...article 2004
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Engelen, L. (author), de Wijk, R.A. (author), Prinz, J.F. (author), Janssen, A.M. (author), Weenen, H. (author), Bosman, F. (author)This study examined the effect of oral and product temperature on the perception of texture and flavor attributes. A trained panel assessed 21 texture and flavor attributes in one high-fat and one low-fat product of two semi-solids: custard dessert and mayonnaise. The products were evaluated at 10, 22 or 35°C in combination with oral...article 2003
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A comparison of the effects of added saliva, α-amylase and water on texture perception in semisolidsEngelen, L. (author), de Wijk, R.A. (author), Prinz, J.F. (author), Janssen, A.M. (author), van der Bilt, A. (author), Weenen, H. (author), Bosman, F. (author)The effect of adding saliva or a saliva-related fluid (α-amylase solution and water) to custard prior to ingestion on the sensory ratings of odour, flavour and lip-tooth-, mouth- and after-feel sensations was investigated. Saliva had previously been collected from the subjects and each subject received his/her own saliva. Sixteen subjects from a...article 2003
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Schuller, A.A. (author), Willumsen, T. (author), Holst, D. (author)Epidemiological studies of the relationship between dental fear, use of dental services, and oral health in different age groups in a common population are scarce. Dental fear and its relationships are usually described in individuals with high dental fear only. The purposes of this study were to describe the prevalence of dental fear in the...article 2003
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Kalsbeek, H. (author), Poorterman, J.H. (author), Eijkman, M.A. (author), Verrips, G.H. (author)In 1987, 1993 and 1999 an epidemiological study on oral health was performed in youngsters aged 5, 11, 17 or 23 years, in whom oral health care was covered by a health insurance fund. To obtain data on dental attendance, oral hygiene habits and the use of fluoride tablets questionnaires were used; data on the prevalence of dental plaque and...article 2002
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Kalsbeek, H. (author), Zijlstra-Remon, N. (author), Filedt Kok-Weimar, T.L. (author)An epidemiological study was performed on caries, fluorosis and plaque in children of refugees 8, 9 and 10 years of age. Tooth brushing habits and dental attendance were evaluated with a questionnaire. Of the 87 children participating (response rate 89%), 85% showed caries experience, 17% fluorosis and 46% clearly visible plaque. Only 14% of the...article 2001
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Kalsbeek, H. (author), Truin, G.J. (author), Poorterman, J.H.G. (author), van Rossum, G.M.J.M. (author), van Rijkom, H.M. (author), Verrips, G.H.W. (author)In 1995, a dental survey, similar to one carried out in 1983, was performed among persons aged 25-54 in the city of 's-Hertogenbosch, the Netherlands. Objective: To describe trends in adults periodontal health between 1983 and 1995. Methods: The participants were interviewed at home and clinically examined in a dental van. Results: Average...article 2000
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Kalsbeek, H. (author), Truin, G.J. (author), van Rossum, G.M.J.M. (author), van Rijkom, H.M. (author), Poorterman, J.H.G. (author), Verrips, G.H. (author), TNO Preventie en Gezondheid (author)In 1995, a dental survey was performed among adults aged 25-54 in the Dutch city of 's-Hertogenbosch. A similar study was performed in the same city in 1983 and the aim of the present study was to describe trends in oral health from 1983 to 1995. National data show that the percentage of edentulous persons aged 30-39 and 40-49 decreased from 11...article 1998
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Knippels, L.M.J. (author), Penninks, A.H. (author), Houben, G.F. (author), Centraal Instituut voor Voedingsonderzoek TNO (author)Background: One of the major factors that may have negatively affected the results of many oral sensitization studies in animals has been unscheduled dietary preexposure of the test animals or their parental generations to the antigen under investigation. Objective: The influence of dietary preexposure to soy protein on oral sensitization...article 1998
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Brugman, E. (author), Verrips, G.H. (author), Danz, M.J. (author), Kalsbeek, H. (author), TNO Preventie en Gezondheid (author)Objective: The aim of this study was to determine the extent to which dental prevention among Turkish parents differs from that among Moroccan parents in one of the large cities in the Netherlands. Design: Turkish and Moroccan mothers with a child of approximately six months old, who visited the well baby clinics in the Schilderswijk area of The...article 1998
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- Kalsbeek, H. (author), van Loveren, C. (author) article 1998
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- Frenken, L.G.J. (author), Hessing, J.G.M. (author), van den Hondel, C.A.M.J.J. (author), Verrips, C.T. (author), Centraal Instituut voor Voedingsonderzoek TNO (author) article 1998
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- Kalsbeek, H. (author), Truin, G.J. (author), Poorterman, J.H.C. (author) article 1998
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Centraal Instituut voor Voedingsonderzoek TNO TNO Voeding (author), Woutersen, R.A. (author)Acrylonitrile is a monomer used extensively as a raw material in the manufacturing of acrylic fibers, plastics, synthetic rubbers, and acrylamide. It has been classified as a probable human carcinogen according to the results of numerous chronic rat bioassays. The present report summarizes the toxicity data on acrylonitrile and reviews available...article 1998
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Kalsbeek, H. (author), Truin, G.J. (author), van Rossum, C.M. (author), van Rijkom, H.M. (author), Poorterman, J.H. (author), Verrips, G.H. (author)In 1995 a dental survey among adults aged 25-54 years was performed in 's-Hertogenbosch (The Netherlands). Aim was to study trends in oral health after 1983, a year in which a similar study was performed in the same city. Caries data were obtained by clinical examination only. The percentage of edentulous persons in the sample decreased with...article 1997
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Kalsbeek, H. (author), van Tiel, J.P. (author), Verrips, G.H. (author), Poorterman, J.H. (author)In order to evaluate the results of Regional Institutions (RI's) for Youth Dentistry, an epidemiological study was performed on caries experience and oral hygiene habits of 5-, 8- and 11-year-olds, getting dental treatment in these institutions. In the big cities participants of the RI's appeared to be mostly from the lower social levels of...article 1994
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Nederlands Instituut voor Praeventieve Gezondheidszorg TNO TNO Preventie en Gezondheid (author), Verrips, G.H. (author), Filedt Kok-Weimar, T.L. (author), Frencken, J.E. (author), Kalsbeek, H. (author)Een onderzoek naar de mondgezondheid en het tandheelkundig preventief gedrag van 5- en 11-jarige Amsterdamse kinderen van ouders, die respectievelijk in Turkije, Marokko, Nederland, Suriname/Antillen of in overige landen zijn geborenreport 1990
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- TNO Preventie en Gezondheid Nederlands Instituut voor Praeventieve Gezondheidszorg TNO (author), Kalsbeek, H. (author), Eijkman, M.A.J. (author), Verrips, G.H. (author) report 1989
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Steeneken, H.J.M. (author), Houtgast, T. (author), Instituut voor Zintuigfysiologie TNO (author)A physical method for measuring the quality of speech‐transmission channels has been developed. Essentially, the method represents an extension of the Articulation Index (AI) concept, which was developed mainly to account for distortions in the frequency domain (noise, bandpass‐limiting). The underlying concept of the present approach, based on...article 1980