It is important to remember that there is a wide range of normal variability in the 12 lead ECG. The following normal ECG characteristics, therefore, are not absolute. It takes considerable ECG reading experience to discover all the normal variants.
Check-Ups. Common check-up and cleaning costs vary. Dentists charge different rates depending upon your situation and where you live. In most places, an average check-up costs about $288, which covers an exam, x-rays and cleaning.
Without dental insurance, the national average costs of common preventive services are as follows, according to the American Dental Association [1] : 1  Periodic examination by a general dentist â $44.10. 2  Prophylaxis (cleaning) â $61.14 (child), $82.08 (adult).3  Topical fluoride application â $31.70 (child), $32.59 (adult).owever, with dental insurance, preventive care may cost little or nothing on top of your monthly premium, which may cost as little as $15 per month. Many dental plans cover two preventive care visits per year at or near 100 percent.