The Application Method of Nanobubble Conveyor on the Effect of Preventive Oral Hygiene

There are various methods to generate nanobubbles, and in this study, we experimented using a nanobubble generator with a high-density of stainless steel mesh nozzle to deliver nanobubble water (normal water and two kinds of mouthwash) stream through a tooth tray to clean bacteria coated on the denture. It showed that with various combinations of motor speed settings and pore diameters, a clearing rate of 95% or more could be achieved, while in some combinations, a clearing rate of 100% was possible. This confirmed the plaque removing the function of the nanobubble water streams. The motor speed setting of the nanobubble generator directly influenced the flow velocity and nanobubble diameter of the water stream. However, the nanobubble dimensions were found to have a significant impact on plaque removal. The bubble diameters and plaque removal efficacy were as follows: the smaller the diameter, the slower the flow velocity and the better the plaque removal. The nanobubble formation of mouthwash was better on plaque removal, compared with the soaking method. From these results, we theorized that plaque removal is influenced by the dimension of nanobubbles; smaller bubble diameter led to improved plaque removal efficacy.

Download Full-text

Study on oral hygiene by nanobubbles from high-density nozzle

Journal of Applied Biomaterials & Functional Materials ◽

10.1177/2280800020919881 ◽

2020 ◽

Vol 18 ◽

pp. 228080002091988

Author(s):

Pei-Ju Lin

Keyword(s):

Stainless Steel ◽

Oral Hygiene ◽

Periodontal Diseases ◽

Oral Bacteria ◽

High Density ◽

Stainless Steel Mesh ◽

Medical Visits ◽

Design Variables ◽

Severe Periodontal Disease ◽

Bacteria Removal

An experiment was performed on oral bacteria removal using the design variables, which included the three-segment rotor speed of the testing device and three types of stainless steel meshes (with different layers). The overall hygienic results showed an effect of up to 95% bacteria removal, and some combinations had 100% hygienic effect. The study proposed that the use of nanobubble generated by a high-density stainless-steel mesh-manufactured nozzle removes dental bacteria. In addition, the device could also be used for auxiliary oral hygiene to decrease the frequency of future medical visits due to periodontal diseases or to enable the device to assist patients with severe periodontal disease more conveniently for oral hygiene.

Download Full-text

The effectiveness of waist-shaped and straight-shaped interdental brushes in cleaning implant overdenture attachments: a self-controlled clinical trial

Journal of Oral Implantology ◽

10.1563/aaid-joi-d-19-00149 ◽

2020 ◽

Author(s):

Qiuwen Chen ◽

Yanjun Ge ◽

Jinyou Chai ◽

Hailan Feng ◽

Jianzhang Liu ◽

...

Keyword(s):

Clinical Trial ◽

Oral Hygiene ◽

Respiratory Diseases ◽

The Other ◽

Controlled Clinical Trial ◽

Cleaning Procedure ◽

Plaque Removal ◽

Line Angle ◽

Implant Overdenture ◽

Interdental Brush

Elderly patients often find it challenging to remove plaque accumulated on the attachments of implant overdentures (IOD) using conventional cleaning instruments. Further, excessive plaque accumulation can lead to peri-implant diseases and occasionally to respiratory diseases. Therefore, here, we aimed to compare the effectiveness of waist-shaped interdental brushes (WIB) with that of straight-shaped ones (SIB) in plaque removal from the locator attachments of IOD. Twenty participants with two locator attachments retaining mandibular IOD participated in this study. After the baseline cleaning, the participants refrained from oral hygiene maintenance for 3 days. A dentist cleaned one of the attachments using the WIB and the other attachment using the SIB. The pre- and post-cleaning modified plaque index (mPLI) scores were recorded. Following another 3 days free from oral hygiene maintenance, the trained participants repeated the same cleaning procedure using the WIB and SIB. Pre- and post-cleaning mPLI scores were recorded. Regardless of the type of brush used, the post-cleaning mPLI scores were lower than the pre-cleaning ones. After the cleaning procedure, the overall mean mPLI score was lower in the WIB group than in the SIB group. The post-cleaning mPLI scores at the line-angles and on the axial surfaces of the attachments were also lower in the WIB group than in the SIB group. There was no difference in the cleaning effectiveness between the dentist and participants when they used the same type of interdental brush. The WIB was significantly more efficient in plaque removal than the SIB, especially at the line-angle sites.

Download Full-text