Net profit for Q4 12 of $9.6 million, or $0.12 per diluted share, includes the release of $4.9 million of revenue previously deferred for Invisalign case refinement. This is compared to net loss of $0.3 million, or $0.00 per diluted share in Q3 12 and net profit of $20.4 million, or $0.25 per diluted share in Q4 11. Net profit for Q4 12 includes a goodwill impairment charge of $11.9 million resulting from finalizing our Q3 12 preliminary estimate and a pre-tax amortization of acquired intangible assets of $1.0 million with a total income tax-related adjustment of $0.2 million. Net loss for Q3 12 includes a preliminary estimate pre-tax goodwill impairment charge of $24.7 million, pre-tax acquisition and integration related costs of $0.2 million, pre-tax amortization of acquired intangible assets of $1.1 million, pre-tax severance and benefit costs of $0.1 million with a total income tax-related adjustment of $2.1 million. Net profit for Q4 11 includes pre-tax acquisition and integration related costs of $1.1 million, pre-tax amortization of acquired intangible assets of $1.3 million, pre-tax severance and benefit costs of $0.8 million with a total tax effect of $0.7 million.
In Q3 12, we determined that there were sufficient indicators of a potential impairment to the goodwill attributed to the scanner and CAD/CAM services reporting unit, therefore we conducted step one of the goodwill impairment analysis and concluded that the goodwill was impaired. Based on our preliminary step two analysis, we recorded an estimated goodwill impairment charge of $24.7 million in Q3 12. In Q4 12, we finalized step two of our analysis and recorded an additional goodwill impairment charge of $11.9 million.
Net profit for FY 12 was $58.7 million or $0.71 per diluted share and includes pre-tax goodwill impairment charge of $36.6 million, pre-tax acquisition and integration related costs of $1.3 million, pre-tax amortization of acquired intangible assets of $4.4 million, pre-tax severance and benefit costs of $0.8 million with a total tax effect of $4.9 million. This compares to net profit for FY 11 of $66.7 million, or $0.83 per diluted share and includes pre-tax acquisition and integration related costs of $10.0 million, pre-tax amortization of acquired intangible assets of $3.2 million, pre-tax severance and benefit costs of $1.1 million with a total tax effect of $2.9 million.
To supplement our consolidated financial statements, we use the following non-GAAP financial measures: non-GAAP gross profit, non-GAAP operating expense, non-GAAP operating margin, non-GAAP net profit, non-GAAP earnings per diluted share, EBITDA and adjusted EBITDA. Detailed reconciliations between GAAP and non-GAAP information are contained in the tables following the financial tables of this release.
Non-GAAP net profit for Q4 12 was $22.3 million, or $0.27 per diluted share. This is compared to non-GAAP net profit of $23.7 million, or $0.28 per diluted share in Q3 12 and non-GAAP net profit of $23.0 million, or $0.28 per diluted share in Q4 11. Non-GAAP net profit for FY 12 was $96.7 million, or $1.17 per diluted share. This compares to non-GAAP net profit for FY 11 of $78.1 million, or $0.97 per diluted share.
Q4 12 Operating Results ($M) Key GAAP Operating Results Q4 12 Q3 12 Q4 11 --------- --------- --------- Revenue $ 142.8 $ 136.5 $ 128.9 Clear Aligner $ 132.8 $ 126.7 $ 118.9 Scanner and CAD/CAM Services $ 10.0 $ 9.8 $ 10.0 Gross Margin 74.5% 73.5% 74.1% Clear Aligner 78.8% 77.6% 78.7% Scanner and CAD/CAM Services 18.5% 20.6% 20.0% Operating Expense $ 89.4 $ 95.8 $ 69.1 Operating Margin 12.0% 3.3% 20.5% Net Profit (Loss) $ 9.6 $ (0.3) $ 20.4 Earnings (Loss) Per Diluted Share (EPS) $ 0.12 $ (0.00) $ 0.25 Key Non-GAAP Operating Results Q4 12 Q3 12 Q4 11 --------- --------- --------- Non-GAAP Gross Margin 74.7% 73.7% 74.9% Non-GAAP Clear Aligner 78.8% 77.6% 78.7% Non-GAAP Scanner & CAD/CAM Services 20.5% 23.8% 30.0% Non-GAAP Operating Expense $ 76.6 $ 70.0 $ 66.9 Non-GAAP Operating Margin 21.0% 22.4% 23.0% Non-GAAP Net Profit $ 22.3 $ 23.7 $ 23.0 Non-GAAP Earnings Per Diluted Share (EPS) $ 0.27 $ 0.28 $ 0.28 EBITDA $ 21.7 $ 8.5 $ 30.7 Adjusted EBITDA $ 33.6 $ 33.6 $ 32.6
