Ahmed Abdulelah Abduljawad Al-jawady
College of dentistry
What is the difference?
Scaling: removal of deposits around tooth
surface without removal of tooth structure.
Root planning: removal of subgingival
plaque,calculus and infected cementum to
produce a smooth, hard and clean surface.
Healing following scaling and root planing:
Reduction in pocket depth occurs by two principal
1-• Recession of the gingival margin due to resolution of
inflammation and subsequent reduction in swelling and
2-• Reattachment to the root surface. This occurs primarily
by the formation of a long junctional epithelial
attachment. Epithelial cells grow from the gingival sulcus
to repopulate the pocket lining and attach by
hemidesmosomes to the root surface. This is most likely to
occur in the absence of inflammation.
Whilst the periodontal ligament contains precursor cells
that have the ability to form a connective tissue
Scaling and Curettage Instruments
1- Sickle Scalers. Sickle scalers have a
flat surface and two cutting edges that
converge in a sharply pointed tip.
The sickle scaler is used primarily to
remove supragingival calculus.
Because of the design of this
instrument, it is difficult to insert a
large sickle blade under the gingiva
without damaging the surrounding
2- Curettes. The curette is the instrument of choice for removing deep
subgingival calculus, root planing altered cementum, and removing the
soft tissue lining the periodontal pocket .
Double-ended Gracey curettes are paired in the
Gracey #1-2 and 3-4: Anterior teeth
Gracey #5-6: Anterior teeth and premolars
Gracey #7-8 and 9-10: Posterior teeth: facial and
Gracey #11-12: Posterior teeth: mesial
Gracey #13-14: Posterior teeth: distal