SmileDirectClub Investor Presentation Deck

US/Canada vs. ROW. Q1 2022 Comparison Total Unique Aligner Orders Shipped Average Aligner Gross Sales Price Total Revenue Gross Profit Gross Margin % S&M As % of Total Revenue G&A As % of Total Revenue Adj EBITDA(1) smile DIRECT CLUB Q1 2022 63,805 $1,903 $129.0mm $93.8mm 72.7% $79.1mm 61.3% $58.0mm 45.0% $(23.0mm) US & Canada % of Total 83.7% N/A 85.1% 86.3% 81.8% 81.7% QoQ 22.0% 0.2% 25.7% Q1 2022 12,449 $1,827 $22.6mm $14.8mm 65.6% $17.6mm 78.0% $13.0mm 57.4% $(11.4mm) (1) Adjusted EBITDA is a non-GAAP financial measure. See appendix for definition of Adjusted EBITDA. ROW % of Total 16.3% N/A 14.9% 13.7% 18.2% 18.3% QoQ (10.1%) (3.8%) (4.5%) 40

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