The healing pattern of a 4 mm proximal infrabony defect was not significantly different from a 2 mm defect adjacent to dental implant in a canine mandible.

Of note, the 4-mm group showed a tendency for higher median BA/TA values (Q1–Q3) in both healing periods, although it did not reach statistical significance (2-mm group at 8 weeks: 36.7% [34.1%–37.0%] vs. the 4-mm group at 8 weeks: 50.0% [42.1%–55.3%]; 2-mm group at 16 weeks: 49.2% [45.0%–52.9%] vs. 4-mm group at 16 weeks: 55.7% [53.2%–57.4%]).

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