중증치주염이 치수조직에 미치는 영향
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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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