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Table 1 Inclusion and exclusion criteria

From: Predictability of orthodontic movement with orthodontic aligners: a retrospective study

Inclusion criteria Exclusion criteria
• Adult subjects > 18 years with permanent dentition
• Complete dentition, or with 4 missing teeth at the most (third molars excluded)
• No supernumerary teeth
• No tooth shape anomalies
• No dental rotation > 35°
• No diastems > 5 mm
• Crowding < 5 mm per arch
• Systemic pathologies
• Ongoing pharmacological treatment able to influence orthodontic movement (e.g. prostaglandin inhibitors, biphosphonates)
• Active periodontal disease
• Treatments requiring extraction space closure