Low level laser is also known as cold laser and red/blue light laser - depending on the wavelength.  It reduces infammation and and stimulates repair of tissues at the cellular level by stimulating ATP. 

It can help sensitive, sore teeth. Move the lip aside and use the curved tip aimed at the tooth itself and the gum/bone above/below the tooth for 2 minutes, 2 times a day.

It is also helpful for sure jaw muscles and sore jaw joints - from clenching/grinding. Aim it at the affected area with the straight, wide beam for 5 minutes 2x day.

• 💡【Who Needs Red Light Therapy】Anyone who suffers from oral nose ear, various body pain, and inflammation. Anyone who needs to relieve muscle stiffness and faster healing after being injured. Red and infrared light is highly effective in healing the skin, it can help you recover faster by reducing inflammation and easing pain while promoting faster healing.
• 💡【2-In-1 Facial & Body】Our red light therapy device comes with a detachable tip. It is a facial therapy device targeted at the mouth, nose, and ear with a tip on it. Great for cold sore, canker sore, and fever blister treatment for lips. Remove the tip, it can be a pain relief device and healing device for the neck, shoulder, wrist, finger, waist, knee, ankle, joints, etc.
• 💡【Enhanced Wavelengths】It is proven that wavelengths of red and infrared light are beneficial for the body. upgraded red light therapy device with its 5 LED lights and 5 wavelengths 940nm-660nm-850nm-810nm-660nm. It's absorbed by the body and helps to healing, pain relief, blood circulation, muscle recovery Please be aware that 850nm and 900nm are not visible to bare eyes and when they are turned on. If you look it closely from the side, you will see the light is slightly red
• 💡【Exclusive Pulse Mode】Special design for thin skin to give skin a transitory buffer. It works by pulsed irradiation way to reduce tissue heating to avoid overheating. If you feel the energy is too hot, the pulsed mode would be a considerate choice. Simply hold the light over the painful area for up to 3 mins daily, 1-3 times a day. Safe easy to use.
• 💡【 User-Friendly Design】handheld infrared light therapy device upgraded with 5 mins timer. One-button operation is friendly for people of all ages. The wireless design provides portable and lightweight features. It comes with two rechargeable batteries and a charger which are ideal for traveling.

• Tested by Dr. T - it is a quality, effective product. There are several other models on Amazon for less cost but this Snow device has over 6500 reviews of 4.3/5
• Uses red and blue light - red to decrease sensitivity (inflammation) and blue to activate the whitening gel
  • Brush/floss with remineralizing toothpaste​​​​
  • Start using just the blue light for maximum whitening activation
  • If sensitive while whitening, use the red/blue light combination
  • If still sensitive after whitening, use just the red light
• They have a corded version for less cost but it does not have the red light-just blue
• EFFORTLESS WAY TO WHITEN TEETH: Our ultra-portable teeth whitening kit lets you whiten teeth on the go. Our proprietary advanced teeth whitening system uses award-winning wireless LED activating technology to offer professional results. Without cables to deal with, our wireless LED mouthpiece makes it even easier to use on the go & travel with.
• EASY TO USE: You only need nine (9) minutes a day to get closer to your perfect smile. First, brush your teeth, apply the proprietary teeth whitening gel, and then let the USB-powered mouthpiece work its magic. Make sure to rinse!
• SAFE TO USE: Can whiten teeth up to one shade in just one session and is designed with sensitive teeth (and gums) in mind. It also helps remove stains from things like coffee and wine.
• COMPLETE BUNDLE:  We've thought of everything from the mouthpiece with patented LED light to a progress tracker. Get 75 sessions for a kit that's worth every penny.

• MAINTAIN WHITER TEETH: One whitening gel refill gives you up to 30 whitening sessions to keep your teeth whiter and brighter

• Dr. T is a firm believer in low level laser light. He uses it personally, in the practice and recommends it frequently for home use. 
• It decreases inflammation and therefore pain
• It stimulates reparative cells and therefore healing
• This unit goes beyond dental use - it can be used on skin, muscles and joints.