The alternating current  xrays produces low energy beam of photons as compare to DC Xray , which are readily absorbes by pateint body. so the low  beam photon produced in high quantity  by DC , which are rarely absorbed by pateints body. DCs produce smooth and constant  xrays which are accurate as compare to traditional ones. 

Xray are inital requirement for diagnosing medical and dental issues.Traditional xray was easily available to medical field , xrays are non invesive , cost effective method .  Since 1900 Xrays are in picture. 

But  to do traditional xrays we have to wear lead aprons , headcaps , it required a seorate room with lead infused walls . The LATEST DIGITAL XRAYS are very conveinent to use . These produce  80% lesser radiation exposure. More cost effective as compare to traditional xrays where films was expensive so the xrays. 

ONE more benefit of digital xrays is we no  more have to keep count of how many xrays we had taken , as all clicks of one pateint  stores at one place, so it became easy to do follow up of the pateints in future. 

AUTOCLAVE is an machinery used for sterlizing the instruments and tools. Autoclave works on concept of steam sterlization under pressure which is much better then earlier boilng water cleaning . 

 Instruments are placed inside an Autoclave, lid is closed, and steams produces inside  which cleans the instruments from all kind of microorganisms . Medical autoclaves generally reaches a temprature of 121-140ºC ( 250-284ºF)  for atleast 3 minute but upto 15 minutes.