C.,
I wouldn't be concerned at this point...I have known children to be 15 and 16 months old without teeth...that is not that uncommon...I used to be a dental assistant to a pediodonist and I have seen many children without teeth at 12 months old...you could take her to a dentist and have x-rays done, that would at least ease your mind...but I bet that she will cut her teeth soon....try not to worry..but like I said, You could have x-rays done just to make you feel better...good luck...read info below from dental web site...
Information
Teething usually begins between the 6th and 8th month of life. Further tooth eruption occurs periodically until all 20 teeth of infancy and childhood, or deciduous teeth, are in place. All the deciduous teeth are normally in place by the 30th month of life.
These teeth include 4 incisors, 2 canines, and 4 molars in each jaw for the total of 20. The 2 lower central incisors (bottom front) usually erupt first followed by the 2 upper central incisors, then the lower and upper lateral (side) incisors, lower molars, upper molars, lower canines, upper canines, lower lateral molars, and finally the upper lateral molars. Note that some children do not show any teeth until much later than 8 months, and this is perfectly normal.
The signs of teething are:
Drooling
Irritability
Gum swelling and sensitivity
Sleeping problems
Refusing food
Biting on hard objects
The discomfort that results from teething is due to the pressure exerted on the tissue in the mouth, called the periodontal membrane, as the teeth erupt. This discomfort may be eased by a cool object such as a firm rubber teething ring or a cold apple. Gently rubbing the gums with a cool, wet washcloth, or (until the teeth are right near the surface) a clean finger , can also help.
The gums should not be cut to facilitate the eruption of teeth since infection can result. Teething powders should also be avoided and children should NEVER be given aspirin, due to the risk of developing Reyes syndrome .
Medications such as children's Tylenol or over-the counter teething preparations containing a topical anesthetic can be helpful.