Pre- and post-treatment levels of salivary mutans streptococci and lactobacilli in pre-school children.
Pre- and post-treatment levels of salivary mutans streptococci and lactobacilli in pre-school children.
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DOI：
10.1046/j.1365-263x.1999.00108.x
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发表时间：
1999-06-01
影响因子：
3.8
通讯作者：
Stahl, B
中科院分区：
文献类型：
--
作者：
Twetman, S;Fritzon, B;Stahl, B
目的：检查龋齿的手术和修复治疗的影响，在唾液中的龋齿相关微生物的水平，并涉及到改变的类型和程度的treatment.Design：Longitudinal.SETTING：儿科牙科部在瑞典的一家中央医院.SUBJECTS和METHODS：108名学龄前儿童严重龋齿计划在全身麻醉下进行治疗。在手术前和治疗后1个月和6个月的回忆预约中，使用椅旁试验来估计唾液变形链球菌、乳酸杆菌和缓冲能力的水平。根据WHO指南对龋病进行评估，并记录手术过程中拔除牙齿和填充表面的数量。结果：结果表明，治疗后的变形链球菌和乳酸杆菌的水平显着降低（P < 0.001），与治疗前的水平相比。乳酸杆菌的水平比变形链球菌更显着减少。变形链球菌的减少与拔牙数量呈正相关（P < 0.01），而与修复或磨削表面的数量无关。乳杆菌减少与治疗类型无显着相关性。结论：研究结果表明，广泛的手术和修复性牙科护理可有效降低至少6个月内与微生物相关的龋齿水平。
OBJECTIVES: To examine the effect of operative and restorative treatment of dental caries on the levels of caries associated microorganisms in saliva and to relate alterations to the type and extent of treatment.DESIGN: Longitudinal.SETTING: Paediatric Dentistry Department at a central hospital in Sweden.SUBJECTS AND METHODS: One hundred and eight pre-school children with severe dental caries scheduled for treatment under general anaesthesia. Chair-side tests were used to estimate the levels of salivary mutans streptococci, lactobacilli and buffer capacity before the surgery and at recall appointments 1 and 6 months after treatment. Caries were assessed according to WHO guidelines and the number of extracted teeth and filled surfaces during surgery were recorded.RESULTS: The results demonstrate that the post-treatment levels of mutans streptococci and lactobacilli were significantly reduced (P < 0.001) compared to pretreatment levels. Lactobacilli levels were more dramatically reduced than mutans streptococci. The reduction of mutans streptococci was positively correlated to the number of extracted teeth (P < 0.01), but not to the number of restored or ground surfaces. Lactobacilli reduction was not significantly related to the type of treatment.CONCLUSION: The findings suggest that extensive operative and restorative dental care effectively reduces the levels of caries associated with microorganisms during a period of at least 6 months.