Due to the presence of a rigid cell wall, bacteria maintain a definite shape, though they vary as shape, size and structure. When viewed under light microscope, most bacteria appear in variations of three major shapes: the rod (bacillus), the sphere (coccus) and the spiral type (vibrio). They measure about 0.25 Âµ and are the smallest cells known so far. 2  They were formerly known as pleuropneumonia-like organisms (PPLO). 3  Mycoplasma gallicepticum, with a size of approximately 200 to 300 nm are thought to be the world smallest bacteria.
Replacing 1 front tooth would cost about $50 so about $100 for 2 front teeth but the cost will vary depending upon your dentist and his experience level. To know the exact cost you must consult your dentist.
Here are the average prices of a root canal by tooth: 1  Front teeth: The cost will range anywhere from $300 to $1,500, but a more typical range will be $900 to $1,100. 2  Bicuspids: The cost of a bicuspid root canal is a little steeper, ranging from $400 to $1,800 with a typical cost of $900 to $1,100.