An 11-year multicentric surgical experience on pediatric orbital floor trapdoor fracture: A World Oral Maxillofacial Trauma (WORMAT) project.

Introduction: Trapdoor fractures of the orbital floor occur almost exclusively in the paediatric population. Despite being widely discussed in the literature, their management remains controversial. The objective of this retrospective study was to analyse the surgical experiences on paediatric trapdoor fractures in the maxillofacial centres participating in the WORMAT project.

Cranio-Maxillo-Facial Reconstruction with Polyetheretherketone Patient-Specific Implants: Aesthetic and Functional Outcomes.

Background: Reconstructing cranio-maxillo-facial defects presents significant challenges. This study evaluates the results of polyetheretherketone patient-specific implants (PEEK PSIs) in primary and secondary cranio-maxillo-facial reconstructions, with a focus on aesthetic and functional outcomes and long-term complications.

Methods: From October 2009 to February 2023, 45 patients underwent cranio-maxillo-facial reconstructions with PSIs.

Policy of fourteen maxillofacial divisions towards titanium plates removal after internal fixation of paediatric maxillofacial fractures: A World Oral Maxillofacial Trauma (WORMAT) project.

Introduction: The aim of this 11-year retrospective multicentric study is to evaluate the policy of 14 maxillofacial surgery divisions in terms of titanium plate removal from paediatric patients who had undergone open reduction and internal fixation (ORIF) to treat maxillofacial fractures.

Material And Methods: Patients ≤ 16 years undergoing surgical treatment for fractures of middle and lower third of the face between January 2011 and December 2022, with a minimum follow-up of 6 months, were included. Age (group A: ≤ 6 years, B: 7-12 years, C: 13-16 years), sex, fracture location and type, surgical approach, number, and location of positioned and removed plates, timing and indications for removal were recorded.

Do facial soft tissue thicknesses change after surgeries correcting dental malocclusions? An intra- and inter-patient statistical analysis on soft-tissue thicknesses in BSSO + LFI surgeries.

Objectives: The aim of this study was to analyse changes in facial soft tissue thickness (FSTT) after corrective surgeries for dental malocclusion. The correlation between body mass index (BMI) and sex of patients and their FSTT before undergoing surgery was analysed.

Materials And Methods: Cone beam computed tomography of seventeen patients that underwent Le Fort I osteotomy in combination with bilateral sagittal split osteotomy were collected.

Temporomandibular joint arthrocentesis: a single-center experience and review of the literature.

Background: The aim of this paper was to report our experience and to review the literature of arthrocentesis focusing on protocols and results.

Methods: Arthrocentesis with supplemental hyaluronic acid was performed in patients with TMDs between January 2017 and December 2020 at the Division of Maxillofacial Surgery. The maximum interincisal opening (MIO) and pain score were recorded preoperatively (T0), 2 months postoperatively (T1), and 6 months postoperatively (T2).

Accuracy of intraoperative navigation for orbital fracture repair: A retrospective morphometric analysis.

In this retrospective case series, patients undergoing surgery to treat isolated orbital floor fractures were morphometrically analyzed. Cloud Compare was used to compare mesh positioning with a virtual plan, using the distance-to-nearest-neighbor method. To assess the accuracy of mesh positioning, a mesh area percentage (MAP) parameter was introduced and three distance ranges were defined as the outcome measures: the 'high-accuracy range' included MAPs at a distance of 0-1 mm from the preoperative plan; the 'intermediate-accuracy range' included MAPs at a distance of 1.

Three-Dimensional Evaluation of Soft Tissue Malar Modifications after Zygomatic Valgization Osteotomy via Geometrical Descriptors.

Patients with severe facial deformities present serious dysfunctionalities along with an unsatisfactory aesthetic facial appearance. Several methods have been proposed to specifically plan the interventions on the patient's needs, but none of these seem to achieve a sufficient level of accuracy in predicting the resulting facial appearance. In this context, a deep knowledge of what occurs in the face after bony movements in specific surgeries would give the possibility to develop more reliable systems.

Implant Dental Rehabilitation of Fibula-Free Flap Reconstructed Jaws.

Background: The possibility of placing dental fixtures in the reconstructed regions allows us to overcome the problems related to dental rehabilitation with removable prosthesis. The aim of this study was to assess the clinic-radiological outcome in a series of patients who underwent fibula flap jaws reconstruction and rehabilitation with implant-supported prosthesis with a minimum follow-up of 24 months.

Material And Methods: The study included 10 patients who underwent reconstruction with fibula free flap between 2010 and 2018.

Malar augmentation with zygomatic osteotomy in orthognatic surgery: Bone and soft tissue changes threedimensional evaluation.

Background: The aim of this prospective study is to objectively assess 3D soft tissue and bone changes of the malar region by using the malar valgization osteotomy in concomitant association with orthognatic surgery.

Materials And Methods: From January 2015 to January 2018, 10 patients who underwent single stage bilateral malar valgization osteotomy in conjunction with maxillo-mandibular orthognatic procedures for aesthetic and functional correction were evaluated. Clinical and surgical reports were collected and patient satisfaction was evaluated with a VAS score.

Accuracy of Fibula Reconstruction Using Patient-Specific Cad/Cam Plates: A Multicenter Study on 47 Patients.

Objectives: This prospective study evaluated the accuracy of mandibular reconstruction using free fibular flaps (by comparing virtual plans to the three-dimensional postoperative results), and the extent of bone-to-bone contact after computer-assisted surgery.

Methods: We included 65 patients who underwent partial-continuity mandibular resections from February 2013 to January 2017, and evaluated virtual planning, surgical techniques, and accuracy.

Results: Forty-seven patients were analysed.

Navigation-Assisted Resection and Fibula Free-Flap Reconstruction of an Extensive Maxillary Tumor.

Tumor resection and reconstruction as a one-step procedure requires accurate definition of the intended safety margins, precise location of osteotomy lines and reliable individual rehabilitation.In recent years, the role of image-guided surgery in the maxillofacial region has increased significantly. As this technology allows the surgeon to track the actual position of each instrument during the operation in real-time, it makes it possible to perform extensive bone structure resections and reconstructions in anatomically distorted or complex areas, such as the head and neck region, without unnecessarily damaging vital structures.

The Shape of Things to Come: In-Hospital Three-Dimensional Printing for Mandibular Reconstruction Using Fibula Free Flap.

Objectives/hypothesis: The aim of this study was to explore whether the production of in-hospital, low-cost surgical cutting guides would be possible and to assess different cutting guide shapes to facilitate the surgery and the application with instruments.

Study Design: Cohort study.

Methods: Using free computer-aided design software, surgical cutting guides for the mandible and fibula were designed and used to perform virtual segmental osteotomies and fibula transplants in seven patients.

Surgical Treatment of Massive Teratoma of the Orbit.

Orbital location of teratoma is extremely rare. The differential diagnosis can be difficult and they may be mistaken for other tumors as they may have both cystic and solid areas. The authors report a case of a 7-day-old neonate with a massive congenital orbital teratoma in which it was decided to apply a surgical technique that involves the aspiration of the cystic fluid, the subsequent infusion of fibrin glue, and the radical excision.

Maxillofacial Injuries Due to Traffic Accidents.

Purpose: The purpose of this retrospective study was to analyze the epidemiology, patterns, and management of maxillofacial due to road traffic accidents over a 17-year period.

Methods: Between January 2001 and December 2017, 2924 patients with maxillofacial fractures were admitted to the Division of Maxillofacial Surgery, Turin, Italy.The following data were analyzed: age, gender, data of the trauma, alcohol and drug abuse, mechanism of injury, fracture site, facial injury severity scale, associated injuries, type of treatment, and length of hospital stay.

Evaluation of the Accuracy of Virtual Planning in Orthognathic Surgery: A Morphometric Study.

Background: The purpose of this study was to prospectively test the accuracy of computer-aided orthognathic surgery comparing the virtual surgical planning with the three-dimensional (3D) outcome.

Methods: Patients that underwent computer-assisted orthognathic surgery were retrospectively evaluated. The postoperative results were compared with the surgical plan, superimposing the postoperative computed tomography (CT) scan onto the virtual plan.

Water planning in a mixed land use Mediterranean area: point-source abstraction and pollution scenarios by a numerical model of varying stream-aquifer regime.

Integrated hydrodynamic modelling is an efficient approach for making semi-quantitative scenarios reliable enough for groundwater management, provided that the numerical simulations are from a validated model. The model set-up, however, involves many inputs due to the complexity of both the hydrological system and the land use. The case study of a Mediterranean alluvial unconfined aquifer in the lower Var valley (Southern France) is useful to test a method to estimate lacking data on water abstraction by small farms in urban context.

Temporomandibular joint reconstruction with stock and custom-made devices: Indications and results of a 14-year experience.

Purpose: Temporomandibular joint (TMJ) reconstruction with alloplastic implants is a reliable, safe and effective treatment option for selected debilitating pathologies of the TMJ. This study retrospectively analyzes our 14-year experience in total alloplastic reconstruction of the TMJ using stock and custom Biomet prostheses. Indications, results and rationale for the choice of stock and custom-made devices are discussed.

Comparison of the Outcomes of Complex Orbital Fracture Repair with and without a Surgical Navigation System: A Prospective Cohort Study with Historical Controls.

Background: In severe orbital fractures, restoration of orbital shape and volume is required to avoid diplopia and posttraumatic enophthalmos. The purpose of this study was to compare outcomes between navigation-aided and conventional techniques for complex unilateral orbital fractures using titanium mesh.

Methods: The outcomes and the computed tomography-measured orbital volume of two groups of orbital complex unilateral reconstruction cases were compared.

Surgical Management of Myofibroma of the Gengiva.

The purpose of this paper is to report a rare patient of oral myofibroma in a 12-year old patient and to describe its clinical, histopathologic, and immunohistochemical features to establish the correct diagnosis and surgical management.Pathological and immunohistochemical examination is a mandatory method for establishing a definitive diagnosis of this lesion avoiding unnecessary treatment. Surgical excision and careful postoperative observation should be a treatment option.