Open Access

Table III

The distribution of the surgical extractions according to preoperative prediction and operative difficulty.

Difficulty Preoperative prediction/number of cases (%) Operative difficulty/number of cases (%)


Pederson Pernambuco Technique Duration
Low 16 (19.3%) 30 (36.1%) 25 (30.1%) 38 (45.8%)
Moderate 46 (55.4%) 53 (63.9%) 24 (28.9%) 32 (38.6%)
High 21 (25.3%) 0 (0%) 34 (41%) 13 (15.6%)
Total 83 (100%) 83 (100%) 83 (100%) 83 (100%)

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