Launch This Resource. In 1950, Erwin Chargaff published a paper stating that in the DNA of any given species, the ratio of adenine to thymine is equal, as is the ratio of cytosine to guanine. This became known as Chargaff's ratio, and it was an important clue for solving the structure of DNA. Downloads. Downloads.
The average annual overhead for a dental office (not including the dentistâs salary) is $350,000. The average clinician works 33 hours per week for 48 weeks, which is 1,600 hours per year. By taking the $525,000 average annual revenue and dividing it by 1,600 hours, we get $312 an hour to keep the office operating profitably.
A sinus lift is a bone grafting procedure typically done when the bone in a patient's upper jaw is too thin to securely hold dental implants. Typical costs: A sinus lift typically costs $1,500 to $2,500 per side, for a total of $3,000 to $5,000 if lifts on both sides are required. For example, Cheyenne Advanced Dental Arts in Nevada charges about $1,800 per side -- or $3,600 for both sides.