Results The predilection age of VRFs was over 40 years old, the predilection teeth of VRFs were molars and premolars, and most teeth with VRFs had periodontal lesions.
Correlation of the subgingival infection and co-infection with human cytomegalovirus and Epstein-Barr virus in chronic periodontitis with severity of the periodontal lesions
Objective To detect prtC gene and its expression product (PrtC) of P.gingivalis in subgingival plaques from chronic periodontitis patients and to elucidate the correlation between PrtC levels and periodontal lesions, and to identify the effect of PrtC on inducing host cell to secrete inflammatory cytokines.
In parodontology, guided tissue regeneration (GTR) is a new technique to cure periodontal lesions.
The highest risk of the occurrence of antro-oral fistula appeared to be at the time of extraction of the upper first molar associated with periapical and periodontal lesions.
Treponema denticola is a small anaerobic spirochete often isolated from periodontal lesions and closely associated with periodontal diseases.
The periodontal lesions begin shortly after the start of both the primary and the permanent dentitions.
Isolates of Gram-negative fermentative gliding bacteria which are prominantly cultivated from the subgingival sulcus in association with periodontal lesions have been the subject of a collaborative taxonomic study.
Magneto-orthodontic experiment with rare earth magnets Nd_2Fe_(14),B on twelve mon-keys were made.After 2,3,4 and 8 weeks,the periodontium of monkeys activated by ma-gnetic force were carefully examined under microscope.The result showed that the perio-dontium had taken on an ideal remodeling after the action of magnetic force.Fast speed,less periodontal lesion and abundant circulation were its character.
Clinical treatment for 156 cases of periodontal-endodontic combined in recent 5 years was analysed. The result shows that endodontic lesion caused by peridental disease should be treated by combined therapy. The cure rate was 69.15%. Merely root canal therapy will increase failure rate of the treatment. However, peridental lesion resulting from endodontic disease should be treated by root canal therapy simply.The cure rate was 72.72%. To increase the success rate of root canal therapy is the key of the treatmeat...
Clinical treatment for 156 cases of periodontal-endodontic combined in recent 5 years was analysed. The result shows that endodontic lesion caused by peridental disease should be treated by combined therapy. The cure rate was 69.15%. Merely root canal therapy will increase failure rate of the treatment. However, peridental lesion resulting from endodontic disease should be treated by root canal therapy simply.The cure rate was 72.72%. To increase the success rate of root canal therapy is the key of the treatmeat for peridental lesion caused by endodontic disorder.Combined endodontic and periodontal lesions can be treated by combined therapy, but the cure rare was 40% and was lower than the two formers.The therapeutic method should be improved further.
In order to observe of pulp disease on the periodontal tissues,the experimental pulp disease was induced in 21 teeth from three dogs by mechanical pulp exposure.The results showed that chronic inflammation and necrosis had developed in all pulps of the experimental teeth.In the periodontal membrane of 21 teeth of the experi-mental group,57.1%of them showed inflammation and 19%showed hyperemia. The re-sults indicated that the pulp disease could produced periodontal lesions through the lateral canals and...
In order to observe of pulp disease on the periodontal tissues,the experimental pulp disease was induced in 21 teeth from three dogs by mechanical pulp exposure.The results showed that chronic inflammation and necrosis had developed in all pulps of the experimental teeth.In the periodontal membrane of 21 teeth of the experi-mental group,57.1%of them showed inflammation and 19%showed hyperemia. The re-sults indicated that the pulp disease could produced periodontal lesions through the lateral canals and dentinal tubules, which suggested that pulpally involved periodontal lesions should not be overlooked in the diagnosis and treatment of periodontal disease.
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