Enhancing Effect of the Application of 1% Chlorhexidine Varnish With Silane Fluoride and Oral Health Promotion on the Streptococcus Mutans Counts Reduction in Pregnant Women and on Early Mother-infant Transmission
试验速览
- 阶段
- 4 期
- 状态
- 已完成
- 发起方
- 入组人数
- 58
- 主要终点
- Caries prevalence assessment in pregnant womens
研究概览
简要总结
Evidence exists on the vertical transmission of Streptococcus mutans from the mother to her children. This transmission can be prevented by maintaining maternal oral health during pregnancy.
详细描述
The aim of this study was to evaluate the enhancing effect of 1% chlorhexidine varnish together with silane fluoride re-mineralizing varnish and oral health promotion strategy on the reduction of S. mutans counts in saliva of pregnant women and the early mother-infant transmission until the first six months of age of the newborn. Methods: An open, random clinical trial of parallel groups was performed. 56 pregnant women free of caries were studied prospectively and longitudinally since the third trimester of gestation until 6 months after giving birth, the newborns were also assessed until reaching 6 months of age. Two groups were formed assigning 28 women to each intervention group. G-I received 0.1% silane fluoride applied as varnish in each visit. G-II women's teeth were coated with 0.1% silane fluoride and 1% chlorhexidine. For the primary culture, CRT Bacteria® system (Ivoclar-Vivadent™) was used for the growth and identification of cariogenic Streptococci. Identification of S. mutans was performed through PCR. The DNA of the isolates identified molecularly as S. mutans was used for a second PCR reaction using the arbitrary primer OPA-O2 to determine the homology among the samples of isolated bacteria from the mother-child pair.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Prevention
- 盲法
- Single (Investigator)
盲法说明
Two groups were formed assigning 28 women to each intervention group. G-I received 0.1% silane fluoride applied as varnish in each visit. G-II women's teeth were coated with 0.1% silane fluoride and 1% chlorhexidine. For the primary culture, CRT Bacteria® system (Ivoclar-Vivadent™) was used for the growth and identification of cariogenic Streptococci.
入排标准
- 年龄范围
- 18 Years 至 45 Years（Adult）
- 性别
- Female
- 接受健康志愿者
- 是
入选标准
- •Pregnant women in the third trimester with a normal and healthy pregnancy.
- •Ages ranged from 18 to 45 years
- •Free of caries (if caries were present, they were treated before enrolling them in the study).
排除标准
- •Non-pregnant women
研究组 & 干预措施
Pregnant women to whom applied silane fluoride
We applied 0.1% silane fluoride (Fluor Protector, Ivoclar Vivadent AG™) as varnish in all teeth on all faces as a promotion strategy on the reduction of S. mutans.
干预措施: Pregnant women to whom applied silane fluoride (Drug)
Pregnant women to whom applied silane fluoride + 1% chlorhexidine
We applied 0.1% silane fluoride (Fluor Protector, Ivoclar Vivadent AG™) and 1% chlorhexidine (Cervitec, Ivoclar Vivadent AG™), both applied as varnish, with a 1 min interval between applications, in all teeth on all faces, using the standardized technique indicated by the manufacturer as a promotion strategy on the reduction of S. mutans.
干预措施: Pregnant women to whom applied silane fluoride + 1% chlorhexidine (Drug)
结局指标
主要结局
Caries prevalence assessment in pregnant womens
时间窗: Basal measurement, at the beginning of the third trimester of gestation.
For this purpose, the Decayed, Missing, and Filled Teeth Index was used to measure the prevalence of caries. This index is based on in-field clinical examination of individuals by using a probe, mirror and cotton rolls, and simply counts the number of decayed, missing (due to caries only) and restored teeth the number of participants with prevalence of caries will be reported.
Streptococcus mutans levels identified in pregnant womens
时间窗: Six months after the birth of the child
In this measurement was identify the S. mutans counts in the saliva of pregnant women after the applications of 1% chlorhexidine varnish together with the application of silane fluoride re-mineralizing varnish or only with the application of silane fluoride. Will be reported the distribution of cariogenic Streptococcus levels in mothers.
Genotypes of the isolates of S. mutans in pregnant womens.
时间窗: Three months after the birth of the child.
The genotypes describes an organism's complete set of genes, in this study, was determined the homology among the samples of isolated bacteria from the mother-child pair. The molecular PCR test was implemented for the identification. Will be reported the % of S. mutans genotypes isolated from the mothers of both groups to the strains isolated from the newborns.
Streptococcus mutans levels identified in childrens
时间窗: Three months after the birth of the child.
In this measurement was identified the S. mutans counts in the saliva of the children. Will be reported the distribution of cariogenic Streptococcus levels in the children.
Streptococcus mutans levels identified in children
时间窗: Six months after the birth of the child.
In this measurement was identified the S. mutans counts in the saliva of the children. Will be reported the distribution of cariogenic Streptococcus levels in the children.
Genotypes of the isolates of S. mutans in children.
时间窗: Three months after the birth of the child.
The genotypes describes an organism's complete set of genes, in this study was determined the homology among the samples of isolated bacteria from the mother-child pair, was reported the % of S. mutans genotypes isolated from the children.
次要结局
未报告次要终点
研究者
Marine Ortiz Magdaleno
Research professor
Biochemical and Microbiology Laboratory, Faculty of Dentistry, Autonomous University of San Luis Pot