手动牙刷中的横角与平面边缘毛发头配置:系统性审查
Tim M J A Thomassen1, Fridus A Van der Weijden1, Sonja Sälzer2
1Department of Periodontology Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, The Netherlands.
International journal of dental hygiene
|April 9, 2024
概括
在短期研究中,带有横角毛发的手动牙刷 (CA-TB) 在除斑方面比平面修饰牙刷 (FT-TB) 具有微弱的优势. 长期评估没有提供足够的证据来支持这种对斑块控制的益处.
科学领域:
- 牙卫生 牙卫生
- 牙周病学 牙周病学
- 生物材料科学是生物材料的科学.
背景情况:
- 手动牙刷 (MTB) 广泛用于口腔卫生.
- 毛发的设计,特别是横角 (CA-TB) 与平面剪裁 (FT-TB) 的设计,可能会影响清洗效率.
- 证据比较这些MTB设计的斑块清除和牙健康需要合成.
研究的目的:
- 系统地审查和评估比较CA-TB和FT-TB的文献.
- 评估这些牙刷设计对成年人的斑块评分和牙健康参数的影响.
- 综合现有临床试验的发现.
主要方法:
- 在PubMed-MEDLINE和Cochrane-CENTRAL数据库中进行系统搜索,直到2023年8月1日.
- 包括在没有牙周炎的成年患者进行自我刷牙的随机对照试验.
- 主要结局:斑块,出血和牙分数;次要结局:软和硬组织异常. 进行了描述性分析和元分析.
主要成果:
- 分析了9篇符合条件的论文,并进行了20次比较,显示出相当多的异质性.
- 描述性分析在8/12个比较中偏好CA-TB去除斑块.
- 短期的元分析显示了统计学上显著的中等效应,有利于CA-TB减少斑块 (SMD = 0.75),但长期研究缺乏证据 (SMD = -0.06). 牙健康数据是不确定的.
结论:
- 短期研究表明,对于消除斑块的CA-TB而不是FT-TB的确定性较弱.
- 由于结果不一致,长期评估没有提供足够的支持.
- 需要进一步的研究来澄清CA-TB设计对口腔卫生参数的长期疗效.
相关概念视频
Generation of Straight or Branched Actin Filaments
2.9K
The straight or branched structure formation of actin filaments is controlled by nucleating proteins such as the formins and Arp2/3 complex. Formin-mediated assembly results in straight filaments, whereas Arp2/3 protein complex-mediated assembly results in branched actin filaments.
Arp2/3 Complex
Arp2/3 complex is a seven-subunit complex consisting of two proteins similar to actin- Arp2 and Arp3, and five other subunits that help keep Arp2 and Arp3 inactive. When required, the complex is...
Arp2/3 Complex
Arp2/3 complex is a seven-subunit complex consisting of two proteins similar to actin- Arp2 and Arp3, and five other subunits that help keep Arp2 and Arp3 inactive. When required, the complex is...
2.9K
Accessory Structures of the Skin: Hair and Hair Follicles
5.1K
Hair and hair follicles are integral components of the integumentary system. Hair is a filamentous structure composed mainly of a protein called keratin. It is found on the surface of the skin throughout the body, except for areas such as the palms of the hands and soles of the feet.
Hair is a keratinous filament growing out of the epidermis. It is primarily made of dead, keratinized cells. Hair strands originate at the epidermal penetration called the hair follicle. The hair shaft is the part...
Hair is a keratinous filament growing out of the epidermis. It is primarily made of dead, keratinized cells. Hair strands originate at the epidermal penetration called the hair follicle. The hair shaft is the part...
5.1K
Frictional Forces on Flat Belts
1.8K
Flat belts are commonly used in various industrial applications for transmitting power from one pulley to another. When a flat belt is wrapped around a set of pulleys, it experiences different tensions at the driving pulley ends due to the friction between the belt and pulley surface. When the pulley moves in a counterclockwise direction, the tension T2 on the opposite side of the pulley where the belt is moving away from is higher than the tension T1 on the side where the belt is moving...
1.8K
Teeth
2.2K
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...
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...
2.2K
Wood Surfacing
493
Wood surfacing is a critical finishing process designed to smoothen the wood surface, enhance its dimensional accuracy, and make handling safer. This process compensates for potential shrinkage during the seasoning phase by marginally increasing the wood dimensions before surfacing. It also helps correct some distortions that may occur as the wood dries.
The equipment used in the surfacing process is a plane equipped with rotating blades. This tool efficiently smoothens the wood surface and can...
The equipment used in the surfacing process is a plane equipped with rotating blades. This tool efficiently smoothens the wood surface and can...
493
Brick Cutting Techniques
1.1K
Brick-cutting techniques involve various tools and methods to shape bricks for construction. A mason's hammer with a chisel-pointed end is used for basic shaping through sharp, precise strikes. For more complex shapes requiring higher precision, a power saw with a water-cooled diamond blade is used.
Cut bricks are categorized by size. Bricks cut to half their original length are called half-bats, while those cut to three-fourths their length are known as three-fourth bats.
Special types of...
Cut bricks are categorized by size. Bricks cut to half their original length are called half-bats, while those cut to three-fourths their length are known as three-fourth bats.
Special types of...
1.1K


