Abstract: [SummaryThis report presented a case of pathological movement of maxillary incisor. A 45-year-old female complained of increasing of the gap between the upper central incisors and increased mobility in the past two years. Clinical examination and Tscan Ⅲ showed the existence of deflective contacts between RCP and ICP. Fractionated treatment of adjustment of the deflective contacts led to relief of upper incisor mobility, and periapical films showed new bone formation.

Key words: Occlusal adjustment, Occlusal interferences, Pathologic tooth migration