ChronOS combined with autogenous bone graft presented a behavior similar to that of autogenous bone graft alone. However, the groups treated with Bio-Oss showed immuno-labeling results indicating maturation of grafted bone.

The Gorlin-Goltz syndrome, nevoid basal cell carcinoma syndrome, or basal cell nevus syndrome is an autosomal dominant condition disorder with high variability expression. It presents a series of relevant clinical manifestations that suggest its diagnosis in cutaneous, bone, dental, soft tissue, nervous, and ocular system disorders. This condition requires a great interaction of several specialists to improve the patient’s life. In this case, we presented a 9-year-old male patient referred to the Department of Oral and Maxillofacial Surgery reporting failure in the normal chronology of dental eruption. After evaluation, it was observed that the patient had 13 typical characteristics of the syndrome, including keratocysts, bifid ribs, palmoplantar pits, and 10 other minor characteristics. In conclusion, the expression of so many features of Gorlin-Goltz syndrome is rare in infants, and early diagnosis is important to decrease morbidity and mortality associated with basal cell carcinomas.

The purpose of this study was to test whether associated subcranial Le Fort III (sLF III) and Le Fort I (LF I) osteotomies are stable after large advancements of the middle third of the face and maxilla. The authors designed a retrospective study and enrolled a sample of consecutive patients with midface hypoplasia treated with associated sLF III and LF I osteotomies in this IRB-approved study between September 2013 and February 2015. To test whether the long-term stability was satisfactory, the authors compared cephalometric changes from immediately after surgery to 18 months after surgery taken from multi-slice computed tomography using two different third-party imaging software programs. Statistical significance was set as P ≤ 0.05. The sample comprised 11 patients (mean age 23.84 ± 4.17 yr; 54% men). The mean advancement of the upper incisor immediately after surgery was 10.03 ± 1.6 mm. After 18 months, the position of the upper incisor did not vary significantly (10.18 ± 2.35 mm). All other cephalometric landmarks did not present statistically significant differences between immediately after and 18 months after surgery, with horizontal and vertical variations of less than one millimetre. This study supports that sLF III and LF I osteotomies are effective in maintaining stable horizontal and vertical skeletal positioning after surgery.

No abstract

Objectives: To evaluate the standard of care given by an in-house multidisciplinary team by measuring occlusal outcomes. Methods: We compared PAR outcomes of close to 200 patients who had received consecutive orthodontic and orthognatic treatment over a period of 48 months from 2012 to 2016. 162 cases commenced treatment and 121 were debonded and placed in retention in this period. Results: Class II mean PAR score before treatment was 39 (10-68), after treatment was 3 (0-8), with a mean improvement of 91%. Class III mean PAR score before treatment was 42 (16-54), after treatment was 3 (1-7), with a mean improvement of 92%. Total PAR scores improved by a mean of 91.5% after treatment, indicating that results are above those in the published literature. Conclusions: Most orthognathic patients reported improvements in their dental and facial appearance and thought that the treatment had been beneficial. Stability of the improvement was not measured in subsequent annual reviews which would prove of greater value and is now an ongoing project combining PAR and standardised cephalometric assessment. http://dx.The purpose of this report was to describe changes of airway volume in nonsyndromic patients after simultaneous subcranial Le Fort III and Le Fort I osteotomy for midface advancement associated with bilateral sagittal split osteotomy. 11 consecutive patients were studied comparing the airway volume, area and minimum cross-sectional area by using Dolphin Software, before, immediately after and 18 months after surgery. The airway space was divided in nasopharynx, oropharynx and hypopharynx. There was an increase in the three variables analysed, but statistical differences were observed in the increase of the minimal cross-sectional area after surgery. There were no differences between male and female patients.In conclusion, although mandible setback should be avoided because it has a negative effect on the airway, the midface advancement compensates this narrowing by maintaining or increasing the airway volume, by advancing the palatopharyngeal arch. Linear midface and maxillary advancement will have positive effects on the airway volume and patency. http://dx. Objectives:The purpose of this study was to evaluate post treatment skeletal stability of a sequence of eleven nonsyndromic patients who underwent subcranial Le Fort III and Le Fort I osteotomy.Methods: To test if the long-term stability was satisfactory, the authors compared cephalometric changes from immediately after surgery to 18 months follow-up taken from multislice computed tomography using two different software. Findings: All patients were submitted to a final advancement of upper incisor of at least 10 mm. There was no statistical difference between the measures taken from the two different software and interclass correlation was at least good for each cephalometric variable. The advancement of the upper incisor, A-point, posterior nasal spine and nasion was highly stable, presenting less than 01 mm of relapse after 18 months in vertical and horizon...