Johnson-Promident University High ... - Noble Dental
• Couplers can be 2 hole, 4 hole, and fiber optic (2 types). • 5 hole fiber optic couplers have an internal glass rod that goes onto tubing that has a light source (bulb) either in the tubing or on the dental control unit. • 6 pin couplers (with 4 holes like a normal 4 hole hand-piece plus 2 …
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