Regular toothbrushes
Based on the shape of the brush head, they can be divided into square and diamond-shaped heads.
Square-shaped brush heads: Effectively clean every surface of the teeth.
Diamond-shaped brush heads: Compared to square heads, diamond-shaped brush heads have a more pointed tip, allowing for deeper cleaning.
Based on the arrangement of the bristles, they can be categorized as flat, wavy, or V-shaped. The wavy/V-shaped bristles are more easily accessible to adjacent teeth, and the bristles in these types have longer ends, effectively reaching hard-to-reach areas.
Based on the handle, they can be categorized as straight, curved, flexible, and non-slip.
Straight handles: Easier to use.
Curved handles: Resembling dentist's tools, they are said to reach hard-to-reach areas.
Flexible handles: Claimed to prevent gum damage from excessive pressure.
Non-slip handles: These designs offer a non-slip feature, preventing the brush from falling while brushing.
Based on the bristle material, brushes are often made of nylon filament. They come in two types: regular nylon and DuPont nylon. Dupont wire is highly elastic and doesn't easily fall over.
Electric toothbrushes
The rapid rotation or vibration of the electric motor creates high-frequency vibrations in the brush head, instantly breaking down toothpaste into fine foam for deep cleaning between teeth. Simultaneously, the vibrations of the bristles promote blood circulation in the mouth and massage the gum tissue.
A few tips for choosing a toothbrush
1. Brush head: For Asians, a small-headed toothbrush is most suitable. Compared to Europeans, Asians have smaller mouths. Too large brush heads can't reach many areas and may also damage the oral mucosa. There's no strict standard for a small head; generally, the effective length of the bristles should be approximately 1-1.2 times the distance between the front teeth, with the bristle height roughly the same as the height of the front teeth. Everyone's mouth and teeth are different, so the size of the brush head naturally varies. Therefore, when purchasing a toothbrush, consider your own oral and dental conditions.
2. Bristles: First, hold the toothbrush upright and inspect your teeth from the side. If they are neatly aligned and free of tangled bristles, the toothbrush is excellent. If they are not neatly aligned or have tangled bristles, avoid purchasing one. Next, check the bristle tips. Avoid overly pointed bristles, especially on fine-bristled toothbrushes. Overly pointed bristles act like blades and can damage gums.
3. Bristle Softness: Use your hand to determine the bristle softness. Gently press the brush head against the back of your hand until a slight white spot appears. Rub it back and forth. If you feel a slight sting, the bristles are too hard and can damage your gums. If you feel only a slight sting, the bristles are too soft and difficult to clean. Note: If your teeth are healthy, choose a toothbrush of normal hardness. If your teeth are sensitive, such as those that experience pain when exposed to cold, hot, sour, or sweet foods, choose a softer toothbrush.