[Analysis of pathogenic relations between dental caries and periodontitis].
OBJECTIVE
In order to search the cause of dental caries and periodontitis.


METHODS
Selected 70 patients with severe chronic periodontitis (CP group) and 50 patients with caries sensitivity (CS group) in clinical adults of oral medicine (18 to 50-year-old) during 1 year. Parameters of oral hygiene, caries and periodontitis were recorded in the typical groups of CP and CS.


RESULTS
The patients of CP group had rare caries, DFS in the groups of CP and CS was 1.46+/-2.60 and 17.32+/-7.55 respectively(p<0.001),while the patients of CS group had relative periodontal health indeed, CPTNI in CS and CP groups were 0.98+/-0.63 and 3.24+/-0.62 respectively (p<0.001), and the number of missing teeth was 1.90+/-3.34 and 1.10+/-1.85 respectively(p>0.05). 3 patients(only 2.4%)confirmed the parameters of caries sensitive as well as severe periodontitis.


CONCLUSIONS
The correlating pathogenesis of caries and periodontitis seems to have antiagonism tendency. The ecological connection and bacterial interaction are worthy of further study.
Li
De-yi
DY
Department of Oral Medicine, Ninth People's Hospital, Shanghai Second Medical University, Shanghai, 200011, China.
Guo
Jing-jing
JJ
Zhao
Jun-jun
JJ
Ge
Shu-yun
SY
Wang
Zhan-hong
ZH
Ye
Jun
J