RSD - created from Mind Map

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Modified Pen grasp

Positioning

Detection

Anatomy of Instruments

Morphological Limitations

Secondary Local Factors

Fulcrums

Instrumentation motion

Scaling

Gracey vs Univeral

Hoe

For support and stability

Fulcrum/thumb= lateral pressure

handle roll + steady stroke

increased tactile sensation-due to modification of tip of finger

Feet flat -balance

Thighs parallel to floor- 90 deg

Back straight- reduce curvature of spine

7-L (PAL/Ling) + R (BUC)

Bum flat for balance- equal weight distribution-reduced leaning

Shoulders relaxed and equal level

Vision- Direct/indirect

Tactile Sensation- using probe (ball ended- > s/a) + incremental 1mm walking. Interproximal detection-imp. as under CP food packing and PRF

Radiographs- limitations: 2D/ small calculus deposits may not be detected

Disclosing solution - Limitations: Plaque sub gingival not detected

Working end-

Terminal Shank

Functional shank

Handle

curette= Rounded toe (less iatrogenic trauma sub gingival

Sickle scaler= Triangular tip- to reach interproximal

Always keep 3mm in contact w/ tooth surface at all times

Cutting edge/ Lateral surface: (x2 sickle + universal) and (x1 Graceys- 70 degree angle)

Back: triangular for sickle- access gingival sulcus / Round for curette (less iatrogenic)

Face: no ray of light= wrong angulation of working end

Needs to be parallel w/ line angle -Mes/mid/dist

Angled/ straight- site specifc

Light+hollow= less fatigue +strain

Width wider= Less pressure

Textured= Increased grip= less strain

Furcation

Root fusion

Enamel Pearls

Root concavities

additional grooves

Fontix=PRF

Overhangs

Intra-oral

Extra-oral

Opposite arch

Finger on finger

Adjacent tooth

Careful w/ elderly can cause bruising

Helps reach base of deep pockets of 1st molars

two types

Handle roll- adapt to all surfaces of the tooth

Wrist motion activation- hand scaling

Digital motion activation- Power driven scaling

5. Insertion- close angle (0 degree)

6. reach base of pocket

7. Open angle of the working end towards gingival tissue- adapt cutting edge

8. In--> out--> Pull--> Roll--> Reset

4. Start at midpoint and go either mesial/distal

1. BPE code

2. Instrument selection +check working end

3. Consider line angles

Avoid burnishing calculus-harder to remove

Detection of calculus

Use lateral Pressure to pull up

Right angulation-or calculus left behind/ iatrogenic trauma (face to tooth 45-90 deg)

Rounded back and toe / semi-circular cross section

Differences

Gracey= Site specific/ Univeral all sites

1 vs 2 cutting edge

In--> Pull--> out (hook)

1 straight cutting edge = no adaptation to surface

Used occasionally for heavy tenacious deposits

TC tip= cannot sharpen