What was developed to maintain the intra-sulcular position of the cord?

The development aimed at maintaining the intra-sulcular position of the cord focuses on the reinforcement of the cord with metal filaments. This enhancement provides the necessary rigidity and stability, ensuring that the cord remains adequately placed within the gingival sulcus during dental procedures.

Metal filaments help to counteract any forces that might displace the cord, which is particularly important during impression taking or when preparing the dental cavity. This reinforcement facilitates the effective management of the soft tissues and maintains the required sulcular space for accurate impressions, which is essential for the success of prosthodontic treatments.

Other alternatives to achieve proper positioning may not provide the same level of reliability or effectiveness as reinforcing the cord with metal filaments.