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  • Pneumatic Dental Descaler Tartar Calculus Remover Pneumatic Oral Teeth Cleansing Machine
    Pneumatic Dental Descaler Tartar Calculus Remover Pneumatic Oral Teeth Cleansing Machine

    Feature: 1. Teeth Cleansing: Pneumatic dental descaler can be used for improve gingival calculus, removing the tar like attachments on teeth, etc. 2. 3 Heads: Pneumatic teeth tartar remover will greatly reduce the teeth soreness, with 3 working tip for you to choose, which bring you much comfort. 3. Safe To Use: Pneumatic tooth cleaner adopted reasonable design, will not harm your oral health when using, suitable for most people to use. 4. Comfortable Grip: Pneumatic teeth cleansing machine is small in size and light in weight for easy to carry, which is comfortable for you to hold. 5. Stainless Steel: Pneumatic dental calculus remover made of stainless steel material, firm and sturdy, which can be used for a long time without broken. Specification: Item Type: Pneumatic Dental Descaler Material: Stainless Steel Frequency: 0-8000HZ Advantage: Small size, good operating field of view, comfortable to grip. Package List: 1 x Dental Descaler3 x Working Tips 1 x Wrench 1 x Manual 1 x Storage Box

    Price: 34.06 € | Shipping*: 0.0 €
  • Dental Calculus Cleaning Spray Long Lasting Refreshing Teeth Whitening Spray 30ml
    Dental Calculus Cleaning Spray Long Lasting Refreshing Teeth Whitening Spray 30ml

    Feature: 1. Breath Refreshing: The tooth cleaning spray can dissolve the calculus in the mouth, freshen the breath and reduce bad breath. 2. Portable: The teeth whitening spray is small and portable, very convenient to carry when going out, and the nozzle design is very convenient. 3. Deep Stain Removal: The calculus cleaning spray can effectively refreshing your mouth, freshen breath, brighten teeth and remove stains deeply. 4. Oral Health Care: The calculus cleaning spray is used in conjunction with tooth cleaner for better results and can promote oral and dental health. 5. Reduces Oral Problems: Teeth whitening spray provides a barrier to cavities, staining, sensitive teeth and unhealthy gums, reducing oral health problems. Specification: Item Type: Dental Calculus Cleaning Spray Material: Organic Function: Dissolve calculus in the mouth, refreshing breath. Package List: 1 x Dental Calculus Cleaning Spray

    Price: 5.17 € | Shipping*: 0.0 €
  • Intelligent Ultrasonic Electric Dental Scaler Dental Calculus Plaque Tartar Remover Cleaner
    Intelligent Ultrasonic Electric Dental Scaler Dental Calculus Plaque Tartar Remover Cleaner

    Feature: 1. Mainly used for erasing stain and plaque on teeth, use it daily to keep your teeth clean and white. 2. Dental scaler tip adopts high quality metal, easy to remove dental calculus, smoke stains and tea stains. 3. Ultrasonic vibration technique, achieves the thorough cleaning of teeth. 4. 3 teeth cleaning modes can be switched freely, meet your different cleaning needs. 5. Rechargeable designs, comes with a USB cable for easy charging, convenient to carry anywhere. 6. IPX6 waterproof grade for safer using, if the instrument is dirty, you can clean it with a wet cloth. Specification: Condition: 100percent Brand New Item Type: Dental Scaler Model: JY-01 Material: Plastic+Metal Frequency: 30-40KHZ Power:

    Price: 63.59 € | Shipping*: 0.0 €
  • Ultrasonic Dental Cleaner Calculus Plaque Tartar Remover Tooth Stains Cleaning Electric Tooth
    Ultrasonic Dental Cleaner Calculus Plaque Tartar Remover Tooth Stains Cleaning Electric Tooth

    Feature: 1. Teeth Cleaning: Ultrasonic vibration technique, achieves the thorough cleaning of teeth, mainly used for erasing stain and plaque on teeth. 2. Calculus Remove: Ultrasonic tooth cleaner can effortless crush stubborn calculus and hard tartar, which is easy to remove smoke stains and tea stains. 3. 4 Modes: Electric teeth cleaner with 4 teeth cleaning modes can be switched freely, meet your different cleaning needs, use it daily to keep your teeth clean and white. 4. Safe Use: Dental calculus remover is activated only when the cleaning head touches teeth or hard objects, and it will stop vibrate automatically when it touches soft gums, which is safe to your gums. 5. Comfortable Hold: Electric dental cleaner tool adopted ergonomic design, with a comfortable grip, which is easy to use and install. Specification: Item Type: Ultrasonic Tooth Cleaner Material: ABS, stainless steel Color: Black Style: Super style Base Battery Model: 14644 Rated Voltage: 5V Capacity: 800mah (Included) . Package List: 1 x Base 2 x Clean Cotton 1 x USB Cable 1 x Oral Mirror 4 x Steel Head 1 x Wrench 2 x Accessories 1 x Manual

    Price: 30.45 € | Shipping*: 0.0 €
  • What is the difference between calculus and advanced calculus?

    Calculus is a branch of mathematics that deals with the study of rates of change and accumulation of quantities. It includes topics such as limits, derivatives, and integrals. Advanced calculus, on the other hand, delves deeper into these concepts and explores more advanced topics such as multivariable calculus, vector calculus, and differential equations. Advanced calculus typically requires a stronger mathematical background and is more theoretical and abstract compared to basic calculus.

  • Struggling with calculus?

    If you are struggling with calculus, don't worry, you are not alone. Many students find calculus to be a challenging subject due to its complex concepts and problem-solving techniques. It's important to seek help from your teacher, classmates, or a tutor to clarify any doubts and practice regularly to improve your understanding and skills in calculus. Remember, with dedication and perseverance, you can overcome the challenges and succeed in mastering calculus.

  • What is calculus?

    Calculus is a branch of mathematics that deals with the study of rates of change and accumulation. It is divided into two main branches: differential calculus, which focuses on the concept of the derivative and rates of change, and integral calculus, which deals with the concept of the integral and accumulation of quantities. Calculus is widely used in various fields such as physics, engineering, economics, and computer science to solve problems involving continuous change and motion.

  • Is calculus difficult?

    Calculus can be difficult for some people, as it involves complex concepts and requires a strong understanding of algebra and trigonometry. However, with dedication and practice, many students are able to grasp the concepts and excel in calculus. It is important to seek help from teachers, tutors, or online resources if you are struggling with calculus, as it is a foundational subject for many fields of study, including engineering, physics, and economics.

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  • Dental Plaque Detector Tooth Calculus Plaque Finding Discloser Radiation Free Detecting Cleanness
    Dental Plaque Detector Tooth Calculus Plaque Finding Discloser Radiation Free Detecting Cleanness

    Feature: 1. High Technology: Porphyrin, a metabolite of dental plaque, emits orange and red fluorescence under the irradiation of specific wavelengths violet light, and the dental plaque on the tooth can be seen by using the polymer filter in this plaque detector. 2. Good Habits: Regularly check children teeth, and help avoid blind brushing, let children develop good habits of brushing, and promote oral health. 3. Simple Operation: Press one key to switch, this dental plaque detector can be used without extra buttons, which means both adults and children can use easily. 4. Safety: This plaque detector has no radiation, so the detector can be used with confidence for children, and can be used frequently to promote the health of children teeth. 5. Battery Slot: There is a battery card slot design, so you can use the detector with battery powered, so the detector can be used at home or outdoors. Specification: Item Type: Dental Plaque DetectorMaterial: ABS .Battery: 3 AAA batteries (shipped without batteries)Display mode: Assist eyes to identify plaque (red is the plaque area) Function: Identify dental plaque to distinguish the degree of tooth cleanliness. Package List: 1 x Dental Plaque Detector

    Price: 30.25 € | Shipping*: 0.0 €
  • Denture Brush Plaque Bacteria Removal Effective Cleaning Prevent Dental Calculus Safe Nontoxic
    Denture Brush Plaque Bacteria Removal Effective Cleaning Prevent Dental Calculus Safe Nontoxic

    Feature: 1. Plaque Removal: This denture cleaning brush can remove 99percent of plaque, making your mouth cavity more healthy. 2. Effective Cleaning: This denture cleaning brush helps effectively remove the stains on the surface of denture and bacteria. 3. Prevent Calculus: This denture cleaning brush prevents dental calculus and other dirt deposition. 4. Safe Material: This denture cleaning brush is made from premium plastic cement material, which is safe and nontoxic. 5. Long Service Life: This denture cleaning brush made by safe material can extend the service life of your denture. Specification: Item Type: Denture Brush Material: Plastic Cement Use: To Clean the Surface of Denture and Extend the Service Life of Denture Scope of Application: It Can Clean Partial Denture, Half Denture and Whole Denture. Package List: 1 x Denture Brush

    Price: 4.1 € | Shipping*: 0.0 €
  • Portable Ultrasonic Calculus Remover Dental Scaling Tooth Stains Cleaning Whitening Oral blue
    Portable Ultrasonic Calculus Remover Dental Scaling Tooth Stains Cleaning Whitening Oral blue

    Feature: 1. Intelligent design, it will work normally when it touches the hard part of the tooth, but it will stop when it touches the soft part of the skin and gums. 2. Dual LED lights can help illuminate the entire mouth so that you can clean your teeth accurately without leaving dead ends. 3. It can effectively scan the deep blind area of the tooth, will not cause damage to the tooth, and is reliable in use. 4. A total of 5 gears: gentle mode, comfortable mode, strong mode, super mode and standard mode to meet your different needs. 5. Compact size, lightweight and portable, it is easy to carry and store, which can bring much convenience for you. Specification: Item Type: Tooth Cleaner Material: ABS + Stainless Steel Rated Voltage: 3.7V Battery Capacity: 600mAh (built-in) Instructions: 1. Make sure that the scalers is full charged before use. 2. Long press the on button to turn on, the light will enter the soft mode, and the negative ion and ultrasonic modes will be turned on at the same time, short press the on button again, the negative ion will not change, and the ultrasonic will enter the comfort mode. And so on, a total of five gears. It is recommended to start from the low gear and gradually increase the gear after adapting : OSoft mode, comfort mode, strong mode, superstrong mode, standard mode 3. Choose a suitable working tip and install it on the host clockwise with a small wrench. Do not use vigorous rotation to avoid damage to the interface. First open the appropriate gear and use the metal head to press the tooth to shake the calculus, and then use a little bit of force when operating on the calculus, try a few more times, because the calculus is more stubborn, be patient, and master the method It will be easier later. 4. Low voltage detection, when the battery voltage is lower than 3.2V, the flashing light will alarm. 5. After use, press and hold the power button to turn off the power. The device is preset with a 10-minute automatic shutdown function to prevent overheating. . Package List: 1 Set of Host3 x Teeth Cleaning Head1 x Wrench20 x Dental Floss1 x Mouth Mirror1 x USB Line1 x Manual

    Price: 35.05 € | Shipping*: 0.0 €
  • Ultrasonic Dental Calculus Remover Electric Cleaning Teeth Stain Plaque Tartar Removal Scraper
    Ultrasonic Dental Calculus Remover Electric Cleaning Teeth Stain Plaque Tartar Removal Scraper

    Feature: 1. It is waterproof, and only the working head will vibrate when the ultrasonic mode is turned on, so it is easy to grip the handle. 2. The working tip is made of stainless steel, and its arc is more suitable for removing tartar and calculus. 3. There are different LED lights, 2 LED signal indicators, 3 LED gear indicators, and 1 searchlight to use. 4. The high‑frequency ultrasonic will not hurt your teeth when cleaning teeth, and is care for oral health. 5. The electric tooth scraper can produce the same frequency vibration to crush the calculus. Specification: Item Type: Dental Calculus Remover Material: ABSCharge Voltage: 5VLithium Battery: 750mAh (Included)Charging Port: 5V magnetic USB charging port.LED Light Power: 0.03W Waterproof Rating: IPX7. LED lights: 2 LED signal indicators, 3 LED gear indicators, and 1 searchlight. How to Use: 1. Choose a suitable working tip and install it on the host with a small wrench clockwise. Make sure the scaler is fully charged before use.2. Press the power button to turn on, and when the light is on, it will enter the low gear, and the negative ion and ultrasonic modes will be turned on at the same time. Press the power button again, the negative ion will not change and the ultrasonic will enter the mid gear. And so on, there are a total of three gears. It is recommended to start with a low gear and gradually increase the gear after adapting.3. First, use a suitable gear to stick the metal head against the teeth to shake the tartar, and then use a little bit of force when operating on the tartar.4. Press the power button, the mode light is on, and the LED light on the front of the handle is on, indicating that the machine is running.5. When the machine is working normally, the vibration frequency is high. When cleaning the teeth, you only need to touch it lightly and repeat the movement at a certain speed to remove the calculus. It is normal that no vibration is felt when the machine is running. Note: 1. Do not apply too much force locally or stay for too long when cleaning your teeth. 2. The machine is a precision device. Please avoid damage to internal and external components caused by falling, bumping, falling, etc. 3. The working tip must be tightened when using it. Package List: 1 x USB Charging Base4 x Working Tip1 x Small Wrench1 x Host 1 x Mirror Note: 1. Do not apply too much force locally or stay for too long when cleaning teeth.2. The machine is a precision device. Please avoid damage to internal and external components caused by falling, bumping, falling, etc. 3. The working tip must be tightened when using it.

    Price: 54.24 € | Shipping*: 0.0 €
  • What is vector calculus?

    Vector calculus is a branch of mathematics that deals with vector fields and their derivatives. It involves studying functions that have both a magnitude and a direction, such as velocity and force. Vector calculus is used in various fields such as physics, engineering, and computer science to analyze and solve problems involving quantities that have both magnitude and direction. It includes operations like gradient, divergence, curl, and line integrals, which help in understanding the behavior of vector fields in three-dimensional space.

  • What is differential calculus?

    Differential calculus is a branch of mathematics that deals with the study of rates at which quantities change. It involves the concept of derivatives, which represent the rate of change of a function at a given point. Differential calculus is used to solve problems involving motion, optimization, and many other real-world applications where understanding how quantities change over time is important. It is a fundamental tool in mathematics and is essential in fields such as physics, engineering, economics, and biology.

  • What is integral calculus?

    Integral calculus is a branch of calculus that deals with the concept of integration, which is essentially the reverse process of differentiation. It involves finding the integral of a function, which represents the area under the curve of the function. This area can be used to calculate quantities such as displacement, velocity, and acceleration. Integral calculus is widely used in various fields such as physics, engineering, economics, and statistics to solve problems involving continuous quantities.

  • What is limit calculus?

    Limit calculus is a branch of calculus that focuses on the concept of limits, which are used to describe the behavior of a function as the input approaches a certain value. In limit calculus, we use limits to analyze the behavior of functions at specific points, to determine the continuity of a function, and to evaluate derivatives and integrals. Limits are essential in understanding the fundamental concepts of calculus and are used to define the derivative and integral of a function. Overall, limit calculus provides the foundation for understanding the behavior of functions and their rates of change.

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