THE ASSOCIATION OF SELECTED BACTERIA WITH THE LESIONS OF ROOT SURFACE CARIES

被引：61

作者：

BOWDEN, GH

EKSTRAND, J

MCNAUGHTON, B

CHALLACOMBE, SJ

机构：

[1] Department of Oral Biology, Faculty of Dentistry, University of Manitoba, Winnipeg

[2] Specialized Caries Centre, Dows Institute for Dental Research, University of Iowa, Iowa City, Iowa

[3] Department of Oral Medicine and Pathology, United Medical and Dental Schools of Guy's and St. Thomas' Hospital, London

来源：

ORAL MICROBIOLOGY AND IMMUNOLOGY | 1990年 / 5卷 / 06期

关键词：

Actinomyces naeslundii; Actinomyces viscosus; bacterial community; Lactobacillus; root caries; Streptococcus mitis; Streptococcus mutans;

D O I：

10.1111/j.1399-302X.1990.tb00439.x

中图分类号：

R78 [口腔科学];

学科分类号：

1003 ;

摘要：

Plaque from the root surfaces of 165 subjects (mean age 65.5 years, 22–26 teeth/subject) was analysed for specific bacteria. Five subject groups were defined: A (DMFS 16.4), B (DMFS 55.9), C1 (DMFS 55.6), C2 (DMFS 57.0) and C3 (DMFS 48.1). Groups C1 and C2 had unrestored root surface lesions: Groups A, B and C3 were free of unrestored root caries and differed in their coronal caries experience. Streptococcus mutans was isolated more frequently from the root lesions in Groups C1 and C2 than from intact root surfaces in Group A, Streptococcus oralis, Streptococcus mitis 1 and Streptococcus sanguis were isolated more frequently from Group A. The percentage contribution that S. mutans made to plaque from lesions in Groups C1 and C2 was higher than that from plaque in Group A and Actinomyces viscosus serovar 2 contributed more to plaque in Group C1 than in samples from Group A. The percentage counts of Lactobacillus in plaque from lesions in Groups C1 and C2 were higher than those from intact roots in Groups A, B, and C3. Subjects were also grouped on the presence of Lactobacillus and S. mutans in plaque samples. Samples with both organisms (n= 17) showed significantly higher isolation frequencies of specific strains of S. mitis 1 and also A. viscosus serovar 2 compared with samples of plaque containing S. mutans or Lactobacillus. Actinomvces naeslundii serovar 1 was not isolated from samples containing both S. mutans and Lactobacillus. The results confirm an association of S. mutans and Lactobacillus with root surface lesions and suggest a relationship between lesions and A. viscosus serovar 2. Selection of samples based on the presence of S. mutans and Lactobacillus showed that specific and different communities may be associated with root surface lesions. These communities reflect the local environment and as such could be valuable indicators of the state of the disease or risk of progression of lesions. Copyright © 1990, Wiley Blackwell. All rights reserved

引用

页码：346 / 351

页数：6

共 28 条

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