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Composition of Functional Tooth Units and Nutrient Intake in Older Men (CHAMP)

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT03295435
Recruitment Status : Completed
First Posted : September 27, 2017
Last Update Posted : September 27, 2017
Information provided by (Responsible Party):
University of Sydney

Brief Summary:
Various definitions of poor dentition in older adults has been linked with inadequate intake of nutrients and poor diet quality. This study aims to look at the associations between poor dentition as defined by the composition of functional tooth units, and dietary intake of nutrients in community dwelling older men.

Condition or disease Intervention/treatment
Oral Health of Older Men Dietary Assessment of Older Men Other: Composition of functional tooth units

Detailed Description:

Poor dentition, defined by numbers of teeth, functional tooth units or edentulism has been previously shown to be associated with poor intakes of nutrients in older adults, including but not limited to vitamin C, calcium, fibre, protein, zinc and folate. Similar findings have been found when poor dentition is defined by the presence of a prosthesis. Reasons for this inverse relationship include poor denture quality, reduced chewing capacity, or the inadequacy of prosthesis to replace natural teeth.

However limited studies have looked at how the composition (natural verses prosthetic) of functional tooth units is associated with nutrient intake. A cross sectional analysis of a cohort of male older adults, participating in an ongoing longitudinal study, was conducted to investigate nutrition and oral health associations, including the relationship between the composition of functional tooth units and nutrient intake.

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Study Type : Observational
Actual Enrollment : 781 participants
Observational Model: Cohort
Time Perspective: Cross-Sectional
Official Title: Associations Between the Composition of Functional Tooth Units and Nutrient Intake in Older Men: the Concord Health and Ageing in Men Project.
Actual Study Start Date : August 5, 2014
Actual Primary Completion Date : July 13, 2016
Actual Study Completion Date : July 13, 2016

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Dental Health

Intervention Details:
  • Other: Composition of functional tooth units

    Composition of functional tooth units measured by trained oral health therapists and was categorised into 3 groups:

    Group A: Natural units only Group B: Natural & Prosthetic units present Group C: No natural units present

Primary Outcome Measures :
  1. Dietary intake of nutrients [ Time Frame: 45 minute interview on 1 day (cross-sectional). ]
    A diet history was performed, and data entered into a database which provided daily average nutrient intakes.

Information from the National Library of Medicine

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Ages Eligible for Study:   78 Years and older   (Older Adult)
Sexes Eligible for Study:   Male
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population

The study population is a subset of a ongoing longitudinal study, that start in 2005. Men over the age of 70 years on the electoral roll for geographical locations within the Canada Bay area of Sydney, NSW were invited to participate. The only exclusion criteria was living in an aged care facility at time of recruitment.

The follow up this study is based on, invited participants to be involved in a fourth wave of assessments. Anyone who had moved into an aged care facility was included. However those who had moved outside of the Sydney, had died, previously withdrawn or refused to participate, (but remained active), were excluded.


Inclusion Criteria:


Exclusion Criteria:

  • Moved inter or intrastate (moved out of study area)
  • Death
  • Refused to participate
  • previously withdrawn

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT03295435

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Australia, New South Wales
The Centre for Education and Research on Ageing
Sydney, New South Wales, Australia, 2234
Sponsors and Collaborators
University of Sydney
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Principal Investigator: Robert Cumming, PhD University of Sydney
Additional Information:
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Responsible Party: University of Sydney Identifier: NCT03295435    
Other Study ID Numbers: 301916
First Posted: September 27, 2017    Key Record Dates
Last Update Posted: September 27, 2017
Last Verified: September 2017
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: Yes
Plan Description: De-identified data is be available for researchers.
Time Frame: Data is currently available
Access Criteria: Data access request will be reviewed by Chief Investigators. All requester's will be required to sign a data access agreement.

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Studies a U.S. FDA-regulated Drug Product: No
Studies a U.S. FDA-regulated Device Product: No
Keywords provided by University of Sydney:
Oral Health