Dental plaque removal with instruments??

It's a good idea to periodically remove the rock from your teeth. It's a mineralized patch, it's an irritant, it can attract more plaques.
As long as the operator has experience and knows what they are doing, there is no harm in the plaque/tartar clearance process. Scaling is necessary to keep your mouth healthy.
However, in order to prevent further accumulation of tar, you can practice dental plaque every day, like this:
You need to make sure that you are effectively brushing your teeth. You just need to use a soft toothbrush and aim it at a 45-degree gum line. Make sure that some bristles get into the gap between the teeth and the gums. Use a small vibrating brush, then sweep the brush to the surface of the bite. Go around your mouth like this -- don't forget your teeth. Don't scrub back and forth -- except on the surface of your teeth.
Floss the floss with two fingers. Keep a 2-inch taut between your index finger and your thumb. Place the floss gently on one side of the tooth and then bend your hand so the floss will form a "C" shape to fight the tooth. Keep the floss always in contact with your teeth, moving up and down to make sure you're gently flossing under the gum.
To move to the adjacent teeth, slide the floss up and down the gums of the small pink triangle, slide to a fresh floss, and repeat it with the next tooth surface. You shouldn't pull the floss hard, nor should you look back and forth.
Continue your whole mouth like this. It's hard to bend the floss when you get to the back teeth -- but that's ok, just do your best. If you think it will get stuck in a contact or tear, pull it over, just like you use a needle.
Brush your teeth at least twice a day and floss once a day, using these techniques to prevent the formation of tartar. The best time to concentrate is before you go to bed, so you can sleep with a clean mouth.
I gave you two links that you can clearly describe -- one for brushing teeth and the other for flossing.
* * hope this helps!