Dentalscaling is as important as your daily brushing or flossing.there are some food
particles which cannot be remove4d by regular brushing or flossing. In this
scenario, dental scalers come to rescue and play its role to, maintain proper
hygiene of the patient. It is only done by dental professions through their
latest equipped tools.
Scaling is
the procedure where dental calculus is removed from supra and subgingival
surfaces of the tooth. It can be performed using a mechanical or hand
instruments by dental professionals. The procedure of hand scaling is more
precise and allows better tactile sensation whereas mechanical scaling
instruments require less time to remove the deposit and result in less operator
fatigue.
Hand scaling
is used to remove large, bulky supra gingival deposit on the surface of the
teeth. Hand instruments have a handle, shank and a working end or tip. Frequent
sharpening is required to maintain its efficacy and sharp edges.The handle can
be varied according to their shapes, and style to reduce strain and hand
fatigue. Working end can be angled,curved or straight and made up of stainless
steel or carbide steel. Hand scalers come in different varieties like hand
scaler, curette,sickle scaler,hoe, chisel and files.Hand scalers have a sharp
cutting edge and curette comes with a rounded toe. Hoe is most useful in removing
a large amount of calculus.
Powered or
mechanical scalers removes calculus easily, more efficiently in less amount of
time. There are three types of mechanical scalers
Sonic scalers
are compressed air driven and require a compressed air driven dental unit. They
are less effective than ultrasonic scalers but they generate less heat and
decreases the chances of iatrogenic damages to the tooth. They are mostly used
supra gingivally and tips of the scalars oscillated at a sonic frequency.
Ultrasonic
scalers are the most commonly used equipment in a dental clinic nowadays. They
are electric driven and tips oscillated at the ultrasonic frequencies like
20KHZ,30KHZ or more. The vibration of the tips generated by either
magnetostrictive or piezoelectric mechanisms of the handpiece. Ultrasonic
oscillation of the tips causes cavitation of the water coolant which releases
energy and helps to disrupt calculus on the surface of the tooth. Ultrasonic
scalers are generally designed for supragingival use but the tips are designed
for subgingival calculus also.
Rotary
scalers are very uncommon in day to day practice as they have more chances of
iatrogenic damage is high. Non-cutting burs are used in a high speed, air
driven handpiece.when the bur is applied to the calculus, the calculus
disintegrates and flushed away by the water spray. They have been shown to
cause extensive enamel damage and when used in humans, resulted in
postoperative pain.
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