There are not always obvious external signs that someone has a cavity. Because of this, a dentist may be the first person to notice. Because cavities can lead to further damage, it is important to see a dentist regularly to prevent cavities from going unnoticed. Go for a dental check up every six months and allow your dentist to see any changes. Some patients may have a mineralization defect of the enamel which allows cavities to form faster. This could be a sign you have a cavity. Toothaches; tooth sensitivity; mild to sharp pain when eating or drinking something sweet, hot, or cold; pain when you bite down — all these may be a the sign of a cavity. If you are experiencing these things consistently, you should seek an oral health care professional. Visible holes or pits in your teeth, brown, black or white staining on any surface of a tooth can all be indications of a cavity; however, because everyone's mouth is different, it can be difficult to know. A dentist and other oral doctors are the people who are properly qualified to diagnose the problem and identify the stage of cavity development. If you think you see a cavity, you should get it checked out.
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One-sentence summary -- Know that cavities may or may not have clear symptoms. Note pain. Look at your teeth.

Q: Disconnect the stapler by switching the power button on the back of the compressor tank to the “off” position. Use your hand to loosen the nut on the bottom of the gun to disconnect it from the hose that attaches it to the compressor. If your trigger has a lock, be sure to activate it to prevent an accidental misfire. If the nut is stuck in place or won’t move when you try to turn it, use the appropriate-sized wrench to loosen it. Squeeze the lever at the front of the gun, and pull the rod away from the stapler to remove the magazine. Make sure you pull the follower rod all the way out to lock it into position. The follower is a rod that holds the magazine in place and makes sure it doesn’t move. Most pneumatic staple guns have a large one at the front of the gun, protruding from underneath the area where the staples fire out of the gun. Position the staples so that the legs are on either side of the rail. Use your hand to slide them up and down on the rail to ensure that they can move freely without getting caught on the rail. It’s safe to load multiple smaller rows of staples, rather than 1 large row. Unlock the follower by squeezing the lever and then releasing it. The stapler should automatically push the staples into the staple gun. If it doesn’t automatically move, give the rod small push and it should engage. Never force the rod to push up on the staples. This can cause a misfire later when you use the gun. Reattach the compressor and put on your safety goggles before turning the gun on. Then, place the front of the gun on a piece of wood pull the trigger to ensure that only 1 staple comes out of the gun at a time. It should fire smoothly with the staple laying flush against the wood. Try to use a piece that is as close to the thickness of the actual items that you are stapling together or are made from the same material. For example, if you are stapling into particle board, use scrap pieces of particle board to test the stapler.
A: Turn off the compressor and detach the stapler. Push on the lever at the front of the gun to disconnect the follower. Lay a strip of staples over the magazine rail with the legs facing down. Release the lever at the front of the gun to move the follower into place. Test the stapler gun by stapling into a scrap piece of wood.

Article: They may turn more yellow and grow softer, but they will not necessarily become sweeter or juicier. If you get an under-ripe lemon and leave it on your counter, it may turn more yellow but it will still taste bitter. The ideal place would be on your kitchen counter, away from direct sunlight. After a few days, the lemon will turn more yellow. Keep in mind, however, that this will not actually ripen the lemon on the inside; the lemon may still taste bitter and under-ripe even though it is yellow. It will, however, still work well as a garnish if you want to add some color to a dish or drink. A greenish lemon does not necessarily mean that it is not yet ripe. You can still have a ripe lemon, even if it looks a little green. This is because lemons ripen from the inside out. The flesh ripens first, then the skin. If you find yourself with an under-ripe lemon, try cutting it open anyway and tasting it. You could also follow the steps listed in this method for determining whether or not a lemon is ripe. Instead, consider using it to clean, or as an air fresher.  You can make an effective rust and tarnish busting scrub by mixing salt and lemon juice into a paste. Add a few slices of lemon into a pot of simmering water. You can also add a few other fragrant herbs to compliment the lemon, such as rosemary.
Question: What is a summary of what this article is about?
Know that lemons will never truly ripen once you take them off the tree. Try placing an under-ripe lemon in a bright location in your kitchen. Understand that color is not a good indicator of ripeness. Don't let an under-ripe lemon go to waste.

Article: Type "www.yelp.com" into a web browser and press ↵ Enter. If your account is not logged in, click Log In in the upper-right corner of the window.  If you see your profile picture below, you've looked a little too far below. If you haven't already added it profile image, it will be a gray silhouette of a person. Click the "Add Photos" button.    Click into the caption box, below the picture you just uploaded. Try to describe where you were or summarize a memory of what was happening when the picture was taken.
Question: What is a summary of what this article is about?
Go to the Yelp website. Click on your profile thumbnail icon from the upper-right corner of the any Yelp page, then click "Account Settings". Click on the Add/Edit button to the right of the "Your Profile Picture" title topic. Upload a new picture for your profile. Select the picture you'd like to use and wait for the upload of these pictures to complete. Locate the picture that uploaded. Click the "Set as Primary" button just slightly to the right of the image that was uploaded. Edit the caption box. Type a caption (optional) that describes the picture. Click the "Save caption" button located underneath the newly uploaded photo.