Your crown can be glued back onto the implant if it has come off. Crowns are generally attached to implants in one of two ways. Firstly you have cement retained implants and you also have screw retained implants.  Once your crown has been cemented back onto the implant you should not eat anything for about an hour until the glue or the cement has fully set.

If your dental implant crown becomes loose after a week it could be that it was only put on as it temporary measure until the dentist can check everything again at your next dental appointment. If your dental implant crown has become loose it is important to check that it is only the crown that has become loose and not the dental implant itself. If your dental implant has become loose then you can have it put back on again as long as the implant is secure and solid.

When an implant crown becomes loose it can be taken off and reattached. In this way it will feel tight again. Some crowns are cement retained and others are held in using a screw in between the implant and the crown. If the implant screw has broken then it will be necessary to remove the broken screw and make a new crown again.  Sometimes it can be that the implant crown is loose but in reality it is the implant itself which has failed. A loose implant cannot be tightened and needs to be removed.

A loose implant will cause pain especially if it has also become infected. The implant will be painful on biting and even when you just touch it. The severity of the pain may be mild to being very severe and maybe accompanied by swelling or bleeding on the gum around the dental implant.

A loose dental implant will move when you gently put your teeth together and bite on it. Your tongue when placed against the implant tooth will also cause movement. In addition a loose dental implant may have pain and swelling around the gum. A loose dental implant is usually not a good sign as it indicates that the dental implant has not worked successfully.

If your dental implant wiggles that usually means that the implant as failed to bond or osteo integrate with the adjacent bone. This can occur fairly immediately after an implant has been placed in your mouth or it can occur sometime afterwards without notice.  Your dentist will need to take an x-ray to find out the exact cause and extent.

A loose dental implant can definitely become infected. Sometimes it can be an infection that causes the dental implant to become loose and in other case as the implant fails to attach adequately to the bone then infection occurs.

Your gum can become swollen under the implant if you have just recently had the implant surgery performed. Having an implant can be quite invasive and the trauma to the gum can cause swelling. In these cases the swelling will subside over the next seven to ten days. If your gum continues to be swollen after this time or you had your implant placed some time ago then you should go back to your dentist as it could indicate problems with the implant. There is also a condition called peri implantitis which is an infection and inflammation of the gum surrounding your implant.

There are certain telltale signs if a dental implant is infected and probably the most important one is that the implant is loose. In addition other signs that your dental implant is infected include pain, bleeding, bad breath, a bad taste, pus extrude from the edges of the implant and redness. If your dental implant is infected, it can be initially necessary to have antibiotics prescribed for the infection to go down. In the long term an implant may sometimes need to be removed. This depends on how extensive the infection is and this is usually verified by probing around the implant and by taking an x-ray. 

A loose dental implant is more than likely to get infected if it is not removed immediately. The infection may be mild or in severe cases your face can swell up and this can be extremely painful. The implant should not be left alone and it should be treated as soon as possible.

Pain under a dental implant can be caused by the implant being too close to the nerve especially in the lower jaw.  When placing implants there are a lot of anatomical structures that have to be avoided as damage by placing an implant to one of these anatomical structures can cause pain.  If an implant has been placed in an incorrect position then it does need to be taken out and repositioned once everything as healed up. 

When a bone graft becomes infected it is necessary to have it completely removed. Once everything has re-healed again then you can consider having a new bone graft placed.  It is not always possible to have another bone graft placed especially if the infection was extensive and causes a lot of damage to the surrounding bone. Initially an infected dental bone graft is treated with antibiotics however it is always necessary to carry out another surgical procedure in order to remove the infected dental bone graft.

If your dental bone graft is infected you will get pain and swelling fairly immediately afterwards. If you look at the gum over the dental bone graft you will see that it looks quite red and inflamed. There will in many cases also be swelling of the gum overlying the bone graft as well. You may also get sinus pain if the bone graft was carried out on around your back molar area.  In the lower jaw a dental bone graft becoming infected can also produce numbness if the nerve is affected or the swelling is extensive.

Pain, swelling, gum discolouration, bruising and redness are typical signs of a failed dental bone graft. Sometimes a failed dental bone graft occurs gradually over a period of time and you may not even know that the dental bone graft has failed until the implants start to become loose.