Clinical trial NCT03295435: Composition of Functional Tooth Units and Nutrient Intake in Older Men
Official title: Associations Between the Composition of Functional Tooth Units and Nutrient Intake in Older Men: the Concord Health and Ageing in Men Project.
Study type: OBSERVATIONAL
Overall status: COMPLETED
Conditions: Oral Health of Older Men
Dietary Assessment of Older Men
Keywords: Diet
Oral Health
Nutrition
Dentition
Lead sponsor: University of Sydney
Sponsor class: OTHER
First posted: 2017-09-27
Enrollment: 781
Sex: MALE
Minimum age (years): 78
Standard ages: OLDER_ADULT
Accepts healthy volunteers: no
Observational model: COHORT
Time perspective: CROSS_SECTIONAL
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 However those who had moved outside of the Sydney, had died, previously withdrawn or refused to participate, (but remained active), were excluded.

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.

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.

Eligibility criteria: Inclusion Criteria:

-

Exclusion Criteria:

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* previously withdrawn

Primary outcomes:
measure: Dietary intake of nutrients
timeFrame: 45 minute interview on 1 day (cross-sectional).
Secondary outcomes:
Other outcomes:
Locations:
city: Sydney
country: Australia
facility: The Centre for Education and Research on Ageing
state: New South Wales
Study officials:
affiliation: University of Sydney
name: Robert Cumming, PhD
role: PRINCIPAL_INVESTIGATOR
References:
citation: de Andrade FB, de Franca Caldas A Jr, Kitoko PM. Relationship between oral health, nutrient intake and nutritional status in a sample of Brazilian elderly people. Gerodontology. 2009 Mar;26(1):40-5. doi: 10.1111/j.1741-2358.2008.00220.x. Epub 2008 Feb 19.
citation: Hildebrandt GH, Dominguez BL, Schork MA, Loesche WJ. Functional units, chewing, swallowing, and food avoidance among the elderly. J Prosthet Dent. 1997 Jun;77(6):588-95. doi: 10.1016/s0022-3913(97)70100-8.
citation: Ervin RB, Dye BA. The effect of functional dentition on Healthy Eating Index scores and nutrient intakes in a nationally representative sample of older adults. J Public Health Dent. 2009 Fall;69(4):207-16. doi: 10.1111/j.1752-7325.2009.00124.x.
citation: Shinkai RS, Hatch JP, Rugh JD, Sakai S, Mobley CC, Saunders MJ. Dietary intake in edentulous subjects with good and poor quality complete dentures. J Prosthet Dent. 2002 May;87(5):490-8. doi: 10.1067/mpr.2002.124093.
citation: Ueno M, Yanagisawa T, Shinada K, Ohara S, Kawaguchi Y. Masticatory ability and functional tooth units in Japanese adults. J Oral Rehabil. 2008 May;35(5):337-44. doi: 10.1111/j.1365-2842.2008.01847.x.