Introduction: This study aimed to assess the eruption of impacted teeth in cleft lip and/or palate (CLP) after alveolar bone graft.
Materials and methods: Research was carried out through a cross-sectional study at the Craniofacial Rehabilitation Center of the University General Hospital of the University of Cuiabá, Mato Grosso, Brazil. Variables related to cleft, cleft side, gender, age, laterality of cleft, impacted teeth, and orthodontic traction were analyzed.
Results: Forty-two patients treated at the institution from 2004 to 2011 had their charts retrospectively reviewed. They were 54.7% male and 45.2% female. The group aged 9 to 11 years was most affected, representing 59.5% of cases. A unilateral cleft was the most prevalent craniofacial anomaly (85.7%). A total of 57 impacted teeth were observed. Maxillary canines were the most commonly impacted teeth (97.6%) and the most frequently identified in patients with a transforamen incisor cleft (TIC) (76.3%). Orthodontic traction was required for both impacted maxillary canines and impacted lateral incisors (64.3 and 35.7% respectively). The orthodontic traction was required only in patients with a TIC (p = 0.0101).
Conclusion: The canine teeth were the most commonly impacted teeth, found mainly in patients with a TIC. After placement of the alveolar bone graft in patients with a preforamen incisor cleft (PIC), all impacted teeth erupted spontaneously.
Clinical significance: An impacted tooth can have negative consequences on a patient's quality of life. Thus, a survey evaluating the incidence and prognosis of impacted teeth after an alveolar bone graft for CLP was important.
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