Table 3. Summary of the material characteristics of the studies eligible for quantitative synthesis.
mil, 1/1,000 inch; STD, Standard; SL, self-ligating; ASL, active SL; IASL, interactive SL; PSL, passive SL; ND, not declared; NiTi, nickel-titanium; EL, elastic ligature; SS, stainless steel; AuPd, gold-palladium; MBT, McLaughlin-Bennett-Trevisi; TMA, titanium-molybdenum alloy.
1 mil = 1/1,000 inch.
*Counted for inclusion in the quantitative synthesis; †coating or surface treatments may be present.