There are no documented reports of Fosamax making teeth more sensitive. Talk you your dentist nonetheless and ask about a toothpaste that might help ease the sensitivity.
Fosamax has been associated with jaw pain, gum infections, loosening of teeth, and numbness in the jaw. Most of these symptoms have been attributed to bone loss in the jaw. Some patients taking Fosamax have also reported that their teeth are extremely sensitive to hot and cold.
Yes it could. You should carefully read your sheet of side effects for this drug. There are numerous dental related side effects and some of them are very serious. If you are experiencing anything suspicious, see you dentist immediately.
Usually anything that you use on your teeth in an abundance too much always can cause your teeth to have symptoms and be more sensitive to hot and cold. If you use the fosamax sparingly then you should not have a problem with sensitivty to hot and cold on your teeth.
Fosamax is a painful disease. It will cause a severe pain in teeth and gums when the affected takes cold or hot food. So it's better to avoid these kind of food.