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KMID : 0363020050350020311
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Journal of Korean Academy of Periodontology
2005 Volume.35 No. 2 p.311 ~ p.319
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The effect of advanced periodontitis on the dental pulp tissue
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김병옥
박영란/윤정훈/장현선
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Abstract
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In order to examine the effects of advanced periodontitis on the dental pulps, 38 extracted
human teeth were examined histologically. The 38 teeth had a positive or negative state in
the electric pulp test(EPT). In addition, almost of the 38 teeth had a deep pocket and severe
mobility, and floating state. A medical and dental history was elicited. The extracted teeth
fixed in 10% neutral formalin solution. The general tissue processing method was followed.
The tissue block including the teeth was prepared for optical microscopy using hematoxillin-eosin staining.
Among the 38 periodontally involved teeth, the dental pulps were respectively intact in
12(31%), and a pulp stone(or linear calcifications) was found in 18 teeeth(47%). In addition,
17 teeth(44%) had pulps exhibiting inflammatory reactions with varying intensities, such as
hyperemia, pulp abscess, pulp necrosis. Among the 38 periodontally involved teeth, 37 teeth
tested a positive to the EPT, and 7 teeth tested negative. The EPT positive 37 teeth had
various histological features such as 7 normal pulp(18%), 17 pulp stone(44%), 1 hyperemia
(2%), 9 pulpitis(23%), 5 root resorption(13%), 3 pulp abscess(7%), and 3 pulp necrosis(7%).
In conclusion, it is suggested that in the EPT positive teeth, advanced periodontally involved
teeth can cause inflammation of the dental pulp.
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KEYWORD
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advanced periodontitis, dental pulp
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