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Abstract
This study was undertaken to determine what effect age and tooth size might have on
the pulpal response of teeth subjected to the trauma of cavity preparation.
Age, in itself, provided no obvious protection except by the presence of irregular
dentine in the pulpal horns or occlusal portions of the pulp chambers. Pulpal lesions
did not occur where irregular dentine lined the cut tubules prior to cavity preparation.
When irregular dentine was not found in the older teeth, however, the intensity of
the lesions was not modified.
Tooth size did not appear to play an important part in determining the pulpal response.
However, since a slight increase in the number of more severe lesions did occur in
the larger teeth, despite similar thicknesses of remaining dentine, it is recommended
that in future studies a comparable average tooth size for each group of teeth being
studied be maintained in order to minimize the bias of the results. An adequate explanation
for the slightly higher incidence of more severe lesions in the larger teeth is still
needed.
Closeness of cavity preparation to the pulp (remaining dentine thickness) when teeth
with R.D.'s differing by more than 0.2 mm. are being compared remains the most useful
factor in the understanding and interpretation of the responses of the human dental
pulp to known traumatic stimuli.
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References
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Article info
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© 1961 Published by Elsevier Inc.
