yes it causes a lump as big as a goose egg
Yes, a bad tooth can cause sharp pain in the head.
An indication of infection - quite possibly the start of an abscess - needs checking out because it can become very painful and untreated the infection can spread to your blood.
yes get it fixed right away cause around the area were that tooth is will swell on the surface of your face!!!!!!!!!!
cause he may have a rotten tooth and may have to go to the dentist to get it checked up
yes
Your friend needs to see a dentist. It is very likely that they'll extract (pull) the tooth because the black hole means that the tooth has rotted out. It also causes bad breath. Bad dental hygiene can cause heart disease.
i had neck surgery 5 months ago is it safe for me to see a dentist for very bad pain from my tooth can i flex my neck?
A dentist can do a couple of things to a bad tooth. If the tooth is salvageable, the part that is bad will be carved or drilled out, then filled. If the entire tooth is bad, then the dentist will simply pry it out and offer options to replace it.
haematoma
A lump of coal
You, could if it is bad enough and also if you are not brushing you teeth the right way- or not at all....
Bad mouth hygine (including bad teeth) by putting fingers/unclean objects into your mouth you are enabling bacteria to enter your body and grow.