Implant overdentures may not improve the nutritional state of elderly edentate individuals

shutterstock_70163050 dental implants

The aim of this study was to see whether the provision of simple mandibular implant overdentures (IODs) to elderly individuals would give them a significantly better nutritional profile than those who receive complete dentures (CDs).

The authors randomised two hundred fifty-five edentate patients over 65 yrs were to receive maxillary CDs and mandibular IODs (n = 128) or CDs (n = 127).

The outcome measure were blood plasma levels of homocysteine (tHcy), vitamin B12, vitamin B6, albumin, serum folate, and C-reactive protein concentrations and  dietary intake were recorded at six-month and one-year post-treatment ,

They found

  • The association  between treatment and tHcy levels was not statistically significant.
  •  A decline of folate from baseline values as well as those of vitamins B6 and B12 and albumin was observed  in both study groups.
  • Significant between-group differences were detected in food preparation and in the individuals’ ability to chew a variety of foods.

The authors concluded that

This study suggests that implant overdentures do not have a more positive effect on the nutritional state of elderly edentate individuals at 6 and 12 months post-treatment than new complete dentures. However, those wearing IODs are significantly more likely to take in their nutrients through fresh, whole fruits and vegetables.

Awad, M. A., Morais, J. A., Wollin, S., Khalil, A., Gray-Donald, K., Feine,  Implant Overdentures and Nutrition: A Randomized Controlled Trial.  Published online before print September 27, 2011, doi: 10.1177/0022034511423396 JDR September 27, 2011 0022034511423396


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Derek Richards

Derek Richards is the Director of the Centre for Evidence-based Dentistry, Editor of the Evidence-based Dentistry Journal, Consultant in Dental Public Health with Forth Valley Health Board and Honorary Senior Lecturer at Dundee & Glasgow Dental Schools. He helped to establish both the Centre for Evidence-based Dentistry and the Evidence-based Dentistry Journal. He has been involved with teaching EBD and a wide range of evidence-based initiatives both nationally and internationally since 1994.

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