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Midfacial growth and dental arch relationships in bilateral cleft palate following secondary alveolar bone grafting and orthodontic intervention: Factors predicting a Le Fort I osteotomy at age 18

2018; Elsevier BV; Volume: 46; Issue: 10 Linguagem: Inglês

10.1016/j.jcms.2018.07.014

1878-4119

Gerhard Koendert Pieter Bittermann, Adrianus P. de Ruiter, Arnold J. N. Bittermann, Aebele B. Mink van de Molen, Robert JJ. van Es, R. Koole, Antoine J.W.P. Rosenberg,

dental development and anomalies

To evaluate midfacial growth and dental arch relationships in patients treated for bilateral cleft lip and palate (BCLP). Data were collected from all patients with BCLP treated at our hospital between 2004 and 2014, with or without premaxillary osteotomy (PO). Dental casts for pre-secondary alveolar bone grafting with PO (SABG + PO) and end-point dental casts were analyzed using the BAURU yardstick scoring system. Pre-SABG + PO, post-SABG + PO, and end-point SABG + PO lateral cephalograms were analyzed. The correlation between both scoring systems was calculated. There were no significant differences between the BAURU scores for centers in a previous study and those collected here. A negative correlation was found between the pre-SABG + PO ANB (Angle between A-point, Nasion and B-point) angle and pre-SABG + PO BAURU scores (R = −0.58; p = 0.000), the long-term post-SABG + PO ANB and mean end-point BAURU (R = −0.50; p = 0.000), and the pre-SABG + PO ANB and mean end-point BAURU (R = −0.51; p = 0.000). We found no significant difference between pre-SABG + PO and end-point BAURU scores. There was a decrease in the SNA (Angle between Sella, Nasion and A-point) and ANB angle over time, indicating delayed growth of the maxilla. We found a negative correlation between the pre-SABG ANB and end-point BAURU scores. Pre-SABG ANB can be used to predict the need for Le Fort I osteotomy at age 18.