Yamashita et al reported an equation for estimating age of a Japanese adult based on dental status. The authors are from Nagasaki University.
Patient selection: Japanese adults, with majority >= 60 years of age
Number of teeth: 32
Parameters:
(1) tooth stump
(2) attrition (text in section 2.3 suggests carious as extends to dentin)
(3) dental prosthesis (to include filled teeth)
(4) normal tooth
(5) untreated missing tooth
Parameter
Finding
Points
tooth stump
-0.237 * (number)
attrition
yes
-5.23
no
0
dental prostheses
-5.35
normal tooth
-0.849 * (number)
untreated missing
0.174 * (number
Y = estimated age in years =
= SUM(points for all of the parameters) + 88.926
Performance:
• The equation may be overfitting the data.
• The dental findings are affected by the quality of dental care received as well as diet.
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Specialty: Clinical Laboratory
