Progress in Orthodontics

Table 4 Von Mises stress values for the cusp tips

From: Maxillary posterior intrusion with corticotomy-assisted approaches with zygomatic anchorage—a finite element stress analysis

	Scenario 1 (MPa)	Scenario 2 (MPa)	Scenario 3 (MPa)
I. Premolar buccal	66 × 10⁻³	65 × 10⁻³	69 × 10⁻³
I. Premolar palatal	38 × 10⁻³	37 × 10⁻³	37 × 10⁻³
II. Premolar buccal	57 × 10⁻³	56 × 10⁻³	74 × 10⁻³
II. Premolar palatal	38 × 10⁻³	43 × 10⁻³	43 × 10⁻³
I. Molar mesiobuccal	21 × 10⁻³	21 × 10⁻³	21 × 10⁻³
I. Molar distobuccal	25 × 10⁻³	26 × 10⁻³	25 × 10⁻³
I. Molar palatal	24 × 10⁻³	22 × 10⁻³	21 × 10⁻³
II. Molar mesiobuccal	22 × 10⁻³	52 × 10⁻³	21 × 10⁻³
II. Molar distobuccal	52 × 10⁻³	43 × 10⁻³	48 × 10⁻³
II. Molar palatal	27 × 10⁻³	30 × 10⁻³	28 × 10⁻³

Scenario 1, no corticotomy; scenario 2, buccal corticotomy; scenario 3, buccal and palatal corticotomy; MPa megapascal

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