SmileDirectClub Investor Presentation Deck

Net Income to Adjusted EBITDA. (In thousands) Net loss Depreciation and amortization Total interest expense Income tax (benefit) expense Restructuring and other related costs Equity-based compensation Other non-operating general and administrative costs Adjusted EBITDA smile DIRECT CLUB Three Months Ended March 31, 2023 ($65,727) 15,873 7,709 321 8,701 6,630 22 ($26,471) 2022 ($73,204) 18,916 1,556 (1,463) 12,764 5,306 1,684 ($34,441) Note: Adjusted EBITDA is a non-GAAP financial measure. Prior period reconciliations are available in historical SEC filings at https://investors.smiledirectclub.com/financial-filings/sec-filings. 38

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