In the early 1960s, Dr. Weikel of Wykle Research, patented Dispersalloy.  The Dispersalloy product line was sold to Johnson & Johnson and then acquired by Dentsply Sirona.  As the patent has expired, Wykle Research  continues to manufacture the Original Dispersalloy formula for sale worldwide as “Original D”.

Proven strength, durability, and reliability

When looking for a high copper, clinically proven amalgam, trust Original D®.
Space-age technology has enabled Original D® to produce superior amalgam restorations. More than 30 years of clinical research is proof positive the original dispersed phase formula found in Original D ® is unsurpassed. This revolutionary amalgam allows you to produce restorations with the high strength necessary in an alloy suitable for the most demanding treatments.

Predictable Results

  • Consistent Mixes with Controlled Set Times
  • Firm Resistance to Condensing
  • Superior Marginal Integrity
  • No Gamma2 – No Corrosion
  • Low Creep
  • High Early/Long-Term Compressive Strengths
  • Hg Safe Capsule Design

Also available in Tablets/Pellets or Powder (10oz)

Original D Formula:
Ag 69%
Sn 18%
Cu 12%
Zn 1%

Available in three set times:
Extra Fast Set, 3 minute
Fast Set, 4 minute
Regular Set, 5 minute

For current pricing or to purchase Original D ® amalgam, visit our store.