Dental office scanners inventory?

We have no stock in our office. When someone picks up the last thing, they'll write it in my order book, and I'll start there. At least, that's how I work in the office. What usually happens is, someone will tell me that we've lost something, how quickly I can get it. I used to do 95% of the orders by Accubite but since closed patterson (in a really bad from my representative) as far as I know I do 90% of the orders by Darby dental (I Accubite representative to now, I will still be loyal I pass Accubite pricing. I wish I had a scanner; That will save me a lot of time.