The purpose of present study was to evaluate the gingival sulcus temperature as a diagnostic parameter in accessing severity, activity and prognosis of periodontal disease by measuring the change of gingival sulcus temperature during experimental
gingivitis.
Ten men (23-25 years old) whose gingivae were clinically healthy were selected. The participants have ceased to perform all forms of oral hygiene during 14 days and then did thorough plaque control for 7 days. For each subjects, gingival sulcus
temperature, plaque index (Silness and Loe) score, gingival sulcus depth and sulcus bleeding index(M hlemann and Son) score were recorded at the subgingival plaque was sampled and analysed using benzoyl-arginine naphthylamide test(Oral-B
Laboratories,
U.S.A.). Above all procedures were done on day 0, 4, 7, 14, 18 and 21 during experimental period.
@ES The results were as follows:
@EN Gingival sulcus temperature showed no significant increase by the day 7. But the temperature on the day 14 was 0.97℃ higher than on the day 1, and this was significant (P<0.001). Although the tempera-ture decreased gradually after
reinstitution of
oral hygiene, the temperature on the day 21 was 0.19℃ higher than on the day 0, and this was still significant (P<0.01).
2. Plaque index score increased to 1.95 on the day 14 and returned to the baseline level from the day 18. Sulcus bleeding index score tended to increase on the day 4, markedly increased to 1.32 on the day 14 and returned to baseline level on the
day
21. The proportion of BANA-reactive sites was 10% on the day 0, increased to 62.5% by the day 14 and decreased to 7.5% on the day 21.
3. Plaque index score increased at first, being followed by sulcus bleeding index score and gingival sulcus temperature during experimental gingivitis period. These parameters decreased in the reverse order during healing period.
The results suggest that gingival sulcus temperature might reveal the disease severity and don't predict the disease activity prior to clinical gingival inflammation.
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