SmileDirectClub Investor Presentation Deck

Net Income to adjusted EBITDA. (In thousands) Net loss Depreciation and amortization Total interest expense Income tax expense Other store closure and restructuring costs Loss on extinguishment of debt Equity-based compensation Other non-operating general and administrative costs(1) Adjusted EBITDA smile DIRECT CLUB Three Months Ended March 31, 2021 Note: Adjusted EBITDA is a non-GAAP financial measure. (1) Includes a one-time legal expense settlement of $5.0mm, offset by currency gains recognized in the quarter of $3.1mm. $(95,645) 16,460 17,566 1,707 1,128 47,631 15,159 912 $4,918 2020 $(107,400) 11,442 4,022 1,974 16,396 6,584 $(66,982) 22

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