Table 1.

Scaling operation score sheet

Scoring items	Score
Preparation
Preoperative preparation
Dress neatly, asepsis, necessary preoperative instructions	3
Choosing right instruments including periodontal probe and scaler	7
Operation posture
Sit up straightly and stablely	2
The patient's jaw plane is located at or below the elbow	2
Adjust the position according to different teeth position	2
Use of oroscope in the exploration of lingual and palatal side	2
Adjustment of lights in different positions	2
Intraoperative operation
Holding
Improved writing style	5
Combined fulcrum	5
Fulcrum
Alternate use of intraoral and extraoral fulcrum	2
No slippage of instrument	2
Fulcrum moves with the change of teeth position	2
Periodontal probing
The angle of proximal surface probing	5
The angle of lip and palate probing	5
The way of buccal probing	5
The order of probing	5
Correct record	6
Supragingival scaling
Probing and recording of subgingival calculus	6
80 ° angle between blade and tooth surface	5
Wrist force	5
Direction of force	5
Remove the calculus in one piece	6
Continuity of scaling	5
Probe inspection after scaling	6
Total	100