Got a PM asking if the ultrasonic scaling is difficult to do for getting rid of coffee and wine stains. There's one pax who is doing monthly cleaning at the dentist coz he's a wine connoisseur/enthusiast and likes his daily 3-4 cups of kopi as well.
He has gotten the gracie curettes and stuff to do manually but apparently it's a totally pain in the arse to do manually. He couldn't do a good and complete job within 1 hr's worth of effort. The normal whitening, electric toothbrush stuff all don't work....
I'd think that it'd be way too harsh on his enamel too if he jitao whack the hardcore stuff so many times a day. (I think he saw my above Colgate optic white with 2% hydrogen peroxide

).
He's in sales, so he cannot leave the problem as it is, and avoiding wine/coffee is totally out of the question. And even if he could avoid the dental costs, it's still not cheap and besides it takes him a good amount of time in terms of waiting and procedure/ travelling.
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My answer : DIY ultrasonic scaling for coffee/wine stains is easy. In fact pretty easy, it's probably at the same expertise level of using a water flosser.

Just need a good mirror (concave one with magnification would be great) + a LED dental mirror.
Also, get the ultrasonic scalers with LED light handles,
lighting is always KEY.
It's literally just put the ultrasonic scaler tip, select the appropriate power (lowish power can do the job liao, eg 2-3 out of 10), go to the stain and scrape it gently.
Done.
Shouldn't take more than 30 mins for the whole mouth.
Of coz, go to youtube and check out how to adapt the correct tip surface to the tooth surface, there is this small learning curve. It's not difficult.
I have tried those motorised rubber prophy cups + colgate optic white. I'd say forget it.
And also probably way way more abrasive than the ultrasonic method, which is direct cleaning on the stain (eg precision bombing with a nuclear cruise missle, surgical + extremely effective) and not like tooth whitening methods with electric toothbrush/rubber cups....which is like carpet bombing method with 500lb bombs....ie still may not solve the problems.