Deep teeth cleaning also known as scaling and root planing in dental terminology, removes dental plaque. Even with careful dental hygiene, it might not be possible to avoid the accumulation of dental plaque. Periodical dental visits will keep a check on this. When the bacterial plaque and its breakdown products start affecting the gum line it leads to the inflammation of gums. If left untreated, this leads to further aggravation and formation of pockets, which is the loss of attachment of the gums from the teeth surface. When the pockets grow deeper, the condition worsens resulting in periodontal diseases and gingivitis. Scaling is done using ultrasonic and manual scaling devices to treat this. The ultrasonic device vibrates at a particular frequency, scaling away the plaque and then manual scalers are used for fine scaling. Root planing is the procedure where the plaque accumulation is more and has resulted in pocket formation. It involves careful cleaning of the root surfaces to remove the tartar or calculus from the surface and the depth of gums. It is done with or without local anaesthesia and is best done in at least two sessions. While a sonic planer is used to remove the superficial plaque, small hand instruments called curettes are used to remove in-depth tartar. After the removal, the pockets are administered with antibacterial medications like iodine, chlorhexidine, or antibiotics. After deep teeth cleaning treatment, sensitivity to hot and cold is common, which can be managed with anti-inflammatory medications.