The results of this study suggest that the addition of nystatin into the tissue conditioner investigated in concentrations below 1,000,000 U did not affect its ultimate tensile strength.

Objectives The objectives of this study were to characterize the craniofacial and airway morphology of oculo‐auriculo‐vertebral spectrum (OAVS) individuals using computed tomography (CT) examination. Setting and Sample Population This sample included individuals in the age range from 5 to 14 years, consisted of a group of 18 OAVS individuals (12 females and 6 males), Pruzansky‐Kaban1 IIB and III and by a paired control group matched by age and sex for comparison of morphometric and airway variables. Materials and Methods Through the CT examination, airway analysis was performed using Dolphin Imaging® Software, and seven morphometric measurements were performed to evaluate craniofacial morphology by Materialize Mimics® Software. To compare airway and morphometric variables, the control group was used. Student's t test and Mann‐Whitney U test were performed to compare differences between the groups. Results Statistically significant differences were showed between the control and OAVS groups for the variables: total airway (TA) area, volume and MAA, RP area, RP volume, RP MAA, RG volume, RG MAA, total posterior height diff, Md incl and y‐axis asymmetry. Pearson and Spearman's correlation showed mostly moderate correlations between Mand Occlusal canting AS with TA area and RP volume, Ax‐Gn with TA area and Hy‐C3 with TA volume. Conclusions The OAVS's airway was altered and worse than the control group. Our results suggest that the contralateral side of OAVS individuals is unaffected; however, longitudinal assessments are needed to confirm it. Hyoid bone and postural measures play an important role in interpreting airway features of individuals with and without OAVS.

Adults presenting skeletal malocclusion frequently require three-dimensional approaches for comprehensive surgical treatment in order to correct the sagittal, vertical and transverse discrepancies. The surgically assisted rapid palatal expansion (SARPE), 1,2 multi-segment maxillary osteotomies 3 and the microimplant-assisted rapid palatal expansion (MARPE) are the main approaches for correction of the transversal deficiency in adults. 4,5 Multi-segment maxillary osteotomies surgery allows great versatility in three-dimensional treatments in a single surgery. The advantages of multiple piece maxillary osteotomies include the capacity to expand the maxilla, correct the dentoalveolar inclination in the anterior segment, compensate dental size discrepancies and level of the dentoalveolar segments. However, its stability is still a concern among surgeons, 3,6-9 and the maxillary widening through this procedure has been reported to be the most unpredictable procedure among all orthognathic surgical modalities. 7,9