Figure 2.

Forest plot of standardized mean differences between oxalate and placebo treatments for dentin hypersensitivity. Risk-of-bias indicate criteria met (+), not met (−) or unclear (?) in sequence generation; allocation concealment; blinding of participants, care providers and outcome assessors; completeness of outcome data; selective outcome reporting; and cross-over effects (for split mouth trials only). Duration Imm, wk, mo, yr indicate Immediate assessment, weeks, months and years, respectively.