Background: The choice of whether to perform a palatal disjunction in constricted maxilla has traditionally been decided based on the age of the patients, although there are gradually increasing references to the fact that this is not a determining factor. The main goal of this study was to evaluate the frequency of the different stages of midpalatal suture maturation in a sample of young adults between 15 and 30 years of age. Other objectives also included analyzing the possible correlation the maturation stages could maintain with sex and age groups. Methods: 142 Cone Beam Computed Tomography (CBCT) scans of young adults were performed. The images were divided into four age groups based on age ranges of 15–18, 19–22, 23–26, and 27–30 years. Each group consisted of 26, 41, 39, and 36 patients, respectively, which were classified using Angelieri’s method. In addition, sex and age groups were considered as variables, and the possible correlation of the prevalence of each one, according to age and sex, was studied. Results: the sample was classified into 4.9% stage B; 52.1% stage C; 27.5% stage D; and 15.5% stage E. In addition, no statistically significant correlation between sex and the maturation stages was found, but more advanced stages did appear to be related to the chronological age of the subjects. Conclusions: The frequency of maturational stages where the suture is shown to be consolidated did not appear to be as high as expected; therefore, the idea of rejecting transverse plane treatment in a conventional manner in an out-of-growth patient should be discarded.

Orthognathic surgery is essential for correcting certain malocclusions and enhancing facial aesthetics. However, determining the ideal positioning of facial structures remains a topic of debate. This study aims to propose numerical references for surgical planning by determining the optimal sagittal projection of the maxillary incisors in aesthetically attractive Caucasian patients. An observational and retrospective study was conducted using cephalometric and photographic records of 89 patients' lateral profiles. These images were evaluated on a 10-point scale by orthodontists, maxillofacial surgeons, and laypeople. Cephalometric parameters were measured, including the position of the upper incisor and soft tissue pogonion, using the Barcelona Line and true vertical lines from subnasale. Statistical analyses were applied to explore the relationship between these parameters and aesthetic perception. The upper incisor and soft pogonion positions were found to significantly influence aesthetic perception. Ideal projection values for the upper incisor were 2.38 mm anterior to the Barcelona Line. The ideal projection for the soft pogonion was 6.02 mm anterior to the same reference. The positions of the upper incisor and soft pogonion are key predictors of aesthetic perception in orthognathic surgery. These findings may enhance surgical planning, although other factors may also affect facial aesthetics.