Mechanisms and Treatment Response of Aggressive Periodontitis in Children: Aberrant Immunological Phenotypes/Functions in the Progression of AgP
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 514
- 试验地点
- 20
- 主要终点
- SNPs and DNA methylation
研究概览
简要总结
Although of low prevalence, aggressive periodontitis is a rapid destructive form of periodontal disease that initiates at a young age, leading to premature loss of first molars and incisors. Little is known on the mechanisms of this disease. It is imperative to understand mechanisms of disease to establish proper treatment. We have established a controlled study in a comparable population presenting similar aggressive disease characteristics to evaluate the mechanisms of this disease. It is the goal of this study to determine immunological and microbiological mechanisms responsible for the rapid tissue destruction in children with localized aggressive periodontitis and how traditional periodontal intervention affects these mechanisms. Important knowledge gained with this proposal will aid in defining specific treatment approaches to better control disease progression and prevent disease initiation in susceptible individuals.
详细描述
There a multiple appointments throughout the study which can vary depending upon if a patient has the disease present or not.
If the patient has gum disease: At the initial examination, some samples will be collected: the natural fluid that comes from the gums and the bacteria that are present there will be collected by inserting a piece of paper and a filter strip in the spaces between teeth and gums; blood samples may also be taken by a phlebotomist to evaluate some inflammatory signs of disease and possible genetic markers (about 5 teaspoons at each visit); and a cheek swab may be taken by gently rubbing a little brush into the inside of the cheeks. Patients also may be asked to spit into a container we provide. Tissues from gums that are usually discarded may also be collected during treatment. When patients return for re-evaluation of their gums, all these samples may be collected again at 3, 6, 12, 18 and 24 months after the initial therapy. After 24 months, only clinical examinations may be performed, up to 3 more visits within the following 3 years.
If the patient does not have gum disease: If gums are healthy and the patient does not need treatment, they will be seen every 6 months for examination and cleanings, then sample collections may also be taken at these visits up to 24 months. These sample collections are done to be studied by genetic tests, which will tell us if there are specific genetic markers (inherited markers) associated with this disease, and also other laboratory testing, which will help the researchers identify how the body responds to bacteria. These markers will also be evaluated in family members (parents, grandparents or siblings), when possible, to check for the likelihood of these members developing this disease.
Regardless of the patient's gum condition, investigators will also evaluate current and past dental x-rays to determine if there were signs of this disease in the past.
Investigators may also take photos of the teeth and gums.
研究设计
- 研究类型
- Interventional
- 分配方式
- Non Randomized
- 干预模型
- Parallel
- 主要目的
- Prevention
- 盲法
- None
入排标准
- 年龄范围
- 5 Years 至 90 Years（Child, Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- 未提供
排除标准
- 未提供
结局指标
主要结局
SNPs and DNA methylation
时间窗: 24 months
The investigators are doing analysis of single nucleotide polymorphisms (DNA sequence variation) and methylation (addition of a methyl group) of DNA of specific genes related to inflammation.
次要结局
- Systemic inflammatory levels(24 months)