相关概念视频
01:17Other Pulmonary Disorders
Respiratory disorders encompass a range of conditions with varying levels of severity. Asthma, marked by chronic airway inflammation and hypersensitivity, is one such condition. It can lead to airway obstruction due to factors like bronchial spasms, mucosal edema, increased mucus secretion, or epithelial damage. Asthma triggers are diverse, ranging from allergens to emotional upset, and treatment focuses on both immediate relief through bronchodilators and long-term inflammation suppression.
01:15Teeth
The formation of teeth, also known as odontogenesis, is a complex process that begins in utero, around the sixth week of embryonic development. There are three stages to this process: the bud stage, the cap stage, and the bell stage.
In the bud stage, the tooth germ (an aggregation of cells) starts to form in the developing jawbone. During the cap stage, the tooth germ differentiates into enamel organ, dental papilla, and dental sac, which will later develop into the tooth's enamel, dentin and...
In the bud stage, the tooth germ (an aggregation of cells) starts to form in the developing jawbone. During the cap stage, the tooth germ differentiates into enamel organ, dental papilla, and dental sac, which will later develop into the tooth's enamel, dentin and...
01:21Tooth Anatomy
The human tooth enables us to eat a variety of foods, speak clearly, and even aid in shaping our faces. Teeth are composed of various elements that work together. Here's a detailed look at the anatomy of a human tooth.
The Crown, Neck, and Root
The visible part of the tooth is referred to as the crown. It's covered by enamel, the hardest substance in the human body. The crown is uniquely shaped for each type of tooth, allowing for different functions such as cutting, tearing, or grinding food.
The Crown, Neck, and Root
The visible part of the tooth is referred to as the crown. It's covered by enamel, the hardest substance in the human body. The crown is uniquely shaped for each type of tooth, allowing for different functions such as cutting, tearing, or grinding food.
01:25Chronic Obstructive Pulmonary Disease-III: Symptoms and Complications.
Understanding the variety of primary symptoms and systemic complications that characterize chronic obstructive pulmonary disease (COPD) is crucial for healthcare professionals.
Symptoms of COPD can be classified as primary or systemic. Primary symptoms relate to reduced airflow, while systemic or extrapulmonary symptoms relate to COPD's broader impact on the body.
Primary Symptoms of COPD:
Symptoms of COPD can be classified as primary or systemic. Primary symptoms relate to reduced airflow, while systemic or extrapulmonary symptoms relate to COPD's broader impact on the body.
Primary Symptoms of COPD:
01:27The Oral Microbiota
The oral microbiome includes a complex ecosystem comprising over 700 microbial species, identified through genomic sequencing and culture-based analyses to date. This community includes a core microbiome, found universally among individuals, and a variable component influenced by environmental factors such as diet, lifestyle, and host genetics. Site-specific conditions, including oxygen gradients, pH levels, and nutrient availability, determine the spatial distribution of these microorganisms...
01:24Chronic Obstructive Pulmonary Disease III: Chronic Bronchitis Features
Chronic bronchitis is a key phenotype of chronic obstructive pulmonary disease (COPD), characterized by airway-centered inflammation and mucus overproduction. It develops from long-term exposure to harmful particles or gases, most commonly cigarette smoke, which triggers a persistent inflammatory response.Cellular and Structural ChangesInflammation initially affects the large bronchi and later the smaller airways, with infiltration by immune cells, including neutrophils, macrophages, and...
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牙周病是牙周病的一种疾病.
Bruce L Pihlstrom1, Bryan S Michalowicz, Newell W Johnson
1Center for Clinical Research, National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, MD 20892-6401, USA. bruce.pihlstrom@nih.gov
Lancet (London, England)
|November 22, 2005
概括
牙周病,包括牙周炎和牙周炎,影响全球多达90%的人口. 管理重点是控制细菌生物膜和风险因素,以防止牙脱落和相关健康问题.
科学领域:
- 牙科 牙科是指牙科的专业.
- 牙周病学 牙周病学
- 公共卫生 公共卫生
背景情况:
- 牙周病非常普遍,影响全球人口的高达90%.
- 牙炎是一种可逆形式,由牙上的细菌生物膜 (斑块) 引起.
- 牙周炎导致牙支组织的不可逆转损失,是成人牙损失的主要原因.
研究的目的:
- 提供有关牙周病的全面概述.
- 讨论牙周病的病因,风险因素和全身关联.
- 概述目前对牙周病的预防和治疗策略.
主要方法:
- 关于牙周病的文献综述.牙周病.
- 分析病因因素,包括细菌生物膜,遗传学和环境影响.
- 检查牙周疾病的全身关联和表现.
主要成果:
- 牙周病是多因素的,受细菌斑块,宿主遗传和烟草使用等环境因素的影响.
- 包括心血管疾病和糖尿病在内的各种系统性疾病与牙周病有关,尽管并非总是确立因果关系.
- 牙周表现可能发生在患有遗传性,皮肤学,血液学和其他系统性疾病的患者中.
结论:
- 牙周病的有效预防和治疗依赖于控制细菌生物膜和可修改的风险因素.
- 早期干预对于阻止疾病进展和防止不可逆转的损害至关重要.
- 需要进一步的研究来确定牙周病与全身疾病之间的因果关系.