[Retracted] Application of Quality Control Circle in Promoting the Use of Rubber Dams in the Root Canal Treatment of Primary Teeth

Table 1

Houpt’s behavioral rating scale for rubber dam treatment.

Score	Description
1	Aborted, no treatment rendered
2	Poor treatment interrupted, only partial treatment completed
3	Fair treatment interrupted, but eventually all completed
4	Few treatment interrupted, but eventually all completed
5	Very good, some limited crying or movement (e.g., during anesthesia or mouth prop insertion)
6	Excellent, treatment completed