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.
1 However, many dental plans only pay a maximum of $1,000-$1,500 per year for all covered dental procedures. 2  On a front tooth, root canal treatment can cost $300-$1,500 or more but typically is about $900-$1,100 depending on complexity and whether the work is done by a dentist or an endodontist.