alleen gezonde deelnemers Oral cavity oral physiology
Conditions
Interventions
None listed
Sponsors
Wageningen Universiteit
Eligibility
Age
18 Years to 99 Years
Inclusion criteria
Inclusion criteria: The study consists of two participant groups, group A participating in the oral physiology measurements and the online questionnaires. Group B will only participate in the online questionnaires.;Inclusioncriteria group A: Have good general health. Have a healthy weight (BMI 18.5-25 kg/m2). Do not have food allergies or intolerances for any of the food products used in the study: carrots, cheese and sausage. No beard or willing to shave (due to facial markers that need to be attached to the skin for the video recordings). Do not have braces or non-removable piercing in or around the mouth (with the exception of a metal wire behind the teeth). Do not use medication that affects your chewing behaviour or saliva production. This will be checked by the researchers in the first questionnaire during the information meeting. ;Fit in one of the following three groups: -Men and women with Chinese nationality and Asian ethnicity, born in China, aged 18 to 30 years, living outside China for less than one year and no missing teeth (wisdom teeth and non-removable implants, crowns and bridges are allowed). -Men and women with Dutch nationality and Caucasian ethnicity, born in The Netherlands, aged 18 to 30 years and no missing teeth (wisdom teeth and non-removable implants, corwns and bridges are allowed). -Men and women with Dutch nationality and Caucasian ethnicity, born in The Netherlands, aged 65 to 85 years and a maximum of 2 missing teeth (wisdom teeth and non-removable implants, corwns and bridges are allowed).;Inclusioncriteria group B: Have good general health. Have a healthy self-reported weight (BMI 18.5-25 kg/m2). Do not have braces or non-removable piercing in or around the mouth (with the exception of a metal wire behind the teeth). Do not use medication that affects your chewing behaviour or saliva production. This will be checked by the researchers in the first questionnaire during the information meeting. ;Fit in one of the following three groups: -Men and women with Chinese nationality and Asian ethnicity, born in China, aged 18 to 30 years, living outside China for less than one year and no missing teeth (wisdom teeth and non-removable implants, crowns and bridges are allowed). -Men and women with Dutch nationality and Caucasian ethnicity, born in The Netherlands, aged 18 to 30 years and no missing teeth (wisdom teeth and non-removable implants, crowns and bridges are allowed). -Men and women with Dutch nationality and Caucasian ethnicity, born in The Netherlands, aged 65 to 85 years and a maximum of 2 missing teeth (wisdom teeth and non-removable implants, corwns and bridges are allowed).
Exclusion criteria
Exclusion criteria: Exclusioncriteria group A: Mastication and/or swallowing problems caused by neurological problems, i.e. stroke, Parkinson, Alzheimer, Huntington. Have followed an energy restricted diet during the last 2 months. Is pregnant, has the intention of becoming pregnant or is currently breastfeeding Employee of the Division of Human Nutrition. Thesis student or intern at the chair group of Sensory Science and Eating Behaviour. Participate in another intervention study, with the exception of the EetMeetWeet study. Have a non-removable denture;Exclusioncriteria group B: Mastication and/or swallowing problems caused by neurological problems, i.e. stroke, Parkinson, Alzheimer, Huntington. Have followed an energy restricted diet during the last 2 months. Is pregnant, has the intention of becoming pregnant or is currently breastfeeding Have a denture. Employee of the Division of Human Nutrition. Thesis student or intern at the chair group of Sensory Science and Eating Behaviour.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| 6 study parameters will be assessed with measurements of the oral cavity: o Mastication efficiency: The mastication efficiency will be determined by masticating an artificial model food (Optosil) for 20 times. Particle size and particle number will be calculated from the spit out samples. Mastication efficiency will be determined for 1 extra commercially food product. o Dental status: The dental status will be determined by the number of teeth, number of molars and number of wisdom teeth. o Salivation: The flow rate (mL/min) will be assessed by weighing the amount of saliva every 30 seconds for 5 minutes, both unstimulated and stimulated. For the stimulated measurements, participants will masticate a 5x5cm piece of Parafilm to simulate mechanical stimulation. o Volume of oral cavity: The volume of the oral cavity (mL) will be determined using the water-retaining method. Participants receive a cup of water and will keep as much water in their mouth as possible. When the maximum is reached, participants spit out the water in another empty cup. o Swallowing threshold: The swallowing threshold will be determined by the particle size immediately before swallowing. Participants will masticate an artificial model food (Optosil) as long as they want. Immediately before swallowing participants have to spit out the sample and particle size & number of particles before the threshold will be calculated. Swallowing threshold will be determined for 1 extra commercially food product. o EAT-10 score: A questionnaire on self-reported swallowing problems consisting of 10 statements. 5 online questionnaires will be filled in to understand the food intake aspects between different consumers: o Food diary: to quantify the foods which are consumed during 2 days. o Food Choice Questionnaire: to quantify the importance of nine factors underlying food choice. o Health and Taste attitude scale: to measure the importance of health and taste aspects of foods in the | — |
Secondary
| Measure | Time frame |
|---|---|
| The secundary study parameter will be: o BMI | — |
Countries
Netherlands
Outcome results
None listed