Mandibular Fractures Research Articles

Paediatric maxillofacial fractures have increased in incidence and their nature and aetiology have changed during three decades

The safety of children’s living environment is affected by several factors. Safer living environments have been offered as one explanation to decreases in children’s fractures. Earlier studies provide evidence of a decreasing trend in children’s fractures in the past decades. The objective of this study was to investigate demographic and clinical features of paediatric maxillofacial fractures during three time periods. A retrospective cross-sectional single-centre study was designed. The study included 474 patients aged ≤ 15 years admitted to Helsinki University Hospital in Finland with maxillofacial fractures during 1980–1989, 1993–2002 and 2013–2018. Maxillofacial fractures increased by 25% during the study period. The increase was greater in boys (28%) than in girls (19%), and significant in age groups 0–5 years (71%) and 13–15 years (32%). Exclusively mandibular fractures decreased by 20%, while exclusively midfacial fractures increased more than four-fold and exclusively upper-third fractures five-fold. Being hit by object and falls from height increased more than two-fold. A temporary increase in assaults and decrease in bicycle accidents in the middle period of the study was observed. During the three decades, paediatric maxillofacial fractures have increased and both fracture type and underlying aetiology have changed. These findings reflect improvements in diagnostics, traffic safety, regulations and technology. The role of factors such as interpersonal violence and economic fluctuation on the incidence of childhood maxillofacial fractures is discussed.

Prevalence of the Huschke Foramen in Colombian Population: An Important Anatomic Alteration for the Planning of TMJ Arthroscopy

Abstract Background Ignoring this anatomic structure would have implications for iatrogenic perforation with the trocar toward the FH during the initial blind drilling or due to the diffusion of the infusion liquid toward the middle ear. Purpose To analyze the prevalence of the FH in an institutional population with a high incidence of TMD to provide further guidelines in diagnosing this anomaly and the planification of TMJ arthroscopy. Materials and Methods A retrospective tomographic study was conducted at the ENT—Oral and Maxillofacial and Radiology Department of the Hospital Universitario la Samaritana in Bogotá, Colombia. Inclusion criteria were patients over 18 years of age who had complementary exams such as ear, face, paranasal sinus, and/or TMJ tomography. Exclusion criteria were history of direct trauma to the external auditory canal in the medical history, patients with craniofacial syndromes, congenital anomalies, and/or history of cranial, mandibular, or temporal fractures. Two radiologists were part of the evaluators of the CT images who conducted the measures in the axial tomographic section and established the presence of the tympanic defect. Results A sample size of 139 medical records of patients, where females represent n: 101 (72.6%) and males represent n: 38 (27.4%). The average age was 43 years ± 18 years. Among the studied population, a total of five FH were detected, corresponding to a prevalence of 3.6% (95% CI 1.5–8.1%). The average size of the defect was 3.52 mm ± 1.1 mm. All the patients had TMJ-related symptoms, but none of them reported otalgia. Conclusion The initial evaluation of each patient must be addressed to assess the integrity of the tympanic bone. In this study, the defects size was smaller than others previously reported. However, diffusion through the tympanic defect could spread the lavage substance into the middle ear during TMJ arthroscopic surgery.

A finite element analysis on the indication for extracting partially impacted mandibular third molars considering mandibular trauma

BackgroundPatients presenting with partially impacted lower third molars (M3) have a higher likelihood of experiencing angle fractures while simultaneously decreasing the risk of condylar fractures. However, the specific biomechanical mechanism responsible for this occurrence remains unclear. Moreover, there is an ongoing debate regarding whether the removal of M3s might actually increase the risk of condylar fractures. This study aimed to evaluate how the presence of M3s influences mandibular fractures resulting from blows to the symphysis and lateral mandibular body, and to determine the indication for extracting M3s in such cases.MethodsModels of the mandible with a partially M3-impacted model (M3I), M3-extracted model (M3E), and M3-absent model (M3A) were generated using a computer. A traumatic blown force of 2000 N was applied to the symphysis and the right body of the mandible. Von Mises and principal stresses were analyzed, and failure indexes were determined. Two cases of mandibular linear fractures were chosen for model verification and interpretation.ResultsWhen force was applied to the symphysis, the condylar region exhibited the highest stress levels, while stress in the mandibular angle region was much less regardless of the M3 state. On applying the force to the right mandibular body, stress in the condylar region decreased while stress in the mandibular body increased, especially in the blown regions. Impacted tooth or cavity formation post-M3 extraction led to uneven stress distribution on the blown side of the mandible, increasing the risk of mandibular angle fractures. In cases where M3 was absent or the extraction socket had healed, stress from lateral traumatic blown force was evenly distributed along both the inner and outer oblique lines of the mandible, thereby reducing the risk of mandibular fractures.ConclusionsThe reduced risk of condylar fractures in patients with partially impacted lower M3s and mandibular angle fractures is mainly due to lateral blows on the mandible, which generate less stress in the condylar region than blows on the mandibular symphysis, rather than being caused by the M3 itself. Extraction of the lower M3 can decrease the risk of mandibular fractures, with a minor influence on condylar fractures.

Management of Multiple Fractures of the Parasymphysis and Angle of the Mandible

Introduction: Mandibular fracture is a fracture that often occurs in maxillofacial trauma. Fracture locations most often occur in the parasymphysis region and combined angle- parasymphysis fractures. Multiple mandibular fractures usually cause facial asymmetry and are challenging to reduce. Fracture treatment must be carried out immediately to restore function and aesthetics. This case report aims to discuss managing multiple mandibular fractures in the angulus and parasymphysis regions of the mandible. Case report: A 13-year-old male patient came to the emergency room at Hasan Sadikin Hospital with bleeding from the mouth caused by a two-wheeled traffic accident. Clinical and radiographic examination results revealed a fracture of the right para symphysis and left mandibular angle. The procedure carried out is Open Reduction Internal Fixation (ORIF). Discussion: Mandibular fractures often occur, and the leading cause is usually caused by driving accidents. Clinical examination and radiographs are needed so appropriate treatment can be carried out. In this case, treatment involves open reduction internal fixation (ORIF) extra and intra-oral approaches. Installation of 2 mini plates each in the symphysis region and angle of the mandible. Conclusion: Treatment for multiple fractures that occurred in the maxillofacial area, in this case, was internal fixation with open reduction (ORIF). The results of the treatment showed facial symmetry and normal chewing function. Keywords: Trauma, mandibular fracture, angulus, para symphysis, ORIF

Assessment of the relationship between the three-dimensional precise location of the mandibular third molar and the volume ratio of the impacted mandibular third molar to the mandibular angle, and the patterns of mandibular angle fracture: A retrospective study

This study aimed to evaluate the relationship between the precise three-dimensional location of the third molar (M3) and mandibular angle fracture (MAF) patterns and to assess the effect of the volume ratio occupied by M3 in the mandibular angle on fracture patterns. The location of M3 was assessed in 218 patients with MAF using computed tomography reconstruction. The bone volume of the mandibular angle and the bone volume occupied by M3 were measured to calculate the volume ratio of M3 to the mandibular angle (M3/MA). MAF patterns were categorized into simple fracture (Type I), displaced fracture (Type II), and comminuted fracture (Type III) based on fracture severity. The results showed that the location of M3 significantly influenced MAF patterns (vertical position: P = .001; horizontal position: P = .002; angulation: P = .027, respectively) and the volume ratio of M3/MA was significantly higher for Type III fracture than Types I and II (P < .001). Regression analysis showed that the horizontal position and angulation of M3 and the volume ratio of M3/MA were the main predictors for comminuted MAF. A larger volume ratio (odds ratio [OR], 1.201; 95% confidence interval [CI], 1.037–1.391; P < .014), Class III position (OR, 7.978; 95% CI, 1.275–49.910; P < .026), and horizontal angulation (OR, 7.212; 95% CI, 1.028–50.581; P < .047) of the M3 were more prone to comminuted MAF than simple fracture. Our findings indicate that the location of M3 significantly affects MAF patterns, and that M3 may weaken the mandibular angle by occupying more bone space, thereby increasing the risk of a comminuted fracture.

Usability testing of a novel interlocking three-dimensional miniplate for mandibular angle fractures.

We developed a novel interlocking three-dimensional (3D) miniplate design with an adjustable configuration. As this device is new, surgeons must become familiar with its application. This study evaluated the usability and learning curves associated with the novel interlocking 3D miniplate for mandibular fracture fixation. The study participants, nine plastic surgeons, were asked to apply an interlocking 3D miniplate and a standard miniplate to polyurethane mandible models. The participants had completed the Basic Craniomaxillofacial Osteosynthesis course during residency and had operated on craniomaxillofacial fractures within the past 5 years. They were instructed to place the interlocking 3D miniplate three times and the standard miniplate once. We assessed the time required for implant placement, the comfort level of the surgeons, and the biomechanical stability of the plates. Biomechanical testing was conducted by subjecting the mandible to forces ranging from 10 to 90 N and the displacement was measured. The results indicate increasing comfort with each attempt at placing the interlocking 3D miniplate, with a significant difference between the first and third attempts. Additionally, a reduction in application time was noted with repeated attempts, suggesting improved efficiency. Biomechanical tests showed comparable stability between the tested plates. Multiple attempts at applying the interlocking 3D miniplate resulted in increased comfort and reduced application time. These findings indicate that, despite its novelty, the interlocking 3D miniplate is relatively straightforward to apply and has a short learning curve. However, surgeons must have specific qualifications to ensure proper training and minimize errors during placement.

A Comparative Study of Efficacy for Extra-Oral vs. Intra-Oral Mandibular Nerve Block in Arch Bar Fixation for Management of Mandibular Fractures.

The aim of the study was to evaluate and compare the efficacy of extra-oral mandibular nerve block (infra-zygomatic approach/lateral approach) vs. intra-oral (Gow-Gates) mandibular nerve block in arch bar fixation for management of mandibular fractures. A total of 200 patients reported with maxillofacial fractures. Out of them, 50 patients who required arch bar fixation for management of mandibular fractures were divided into two groups: Group I: Extra-oral and Group II: Intra-oral mandibular nerve blocks. The intra-operative pain, time of onset of anaesthesia, volume of drug administered, depth of needle insertion, repetition of injections and postoperative complications were analysed. In Group I (Extra-oral nerve block), the time of onset of anaesthesia, volume of anaesthesia administered, needle depth, number of repetition of injections and postoperative complications were more as compared to Group II. No significant difference was observed in intra-operative pain score between two groups. Intra-oral approach with Gow-Gates technique seemed to be efficient and easy to operate as compared to extra-oral approach, for arch bar fixation of mandibular fractures in an output door setting, as extra-oral approach is more technique-sensitive and may lead to certain complications which require operation theatre setting with medical attention.

Mandibular biomechanics rehabilitated with different prosthetic restorations under normal and impact loading scenarios

BackgroundRestorative treatment options for edentulous patients range from traditional dentures to fixed restorations. The proper selection of materials greatly influences the longevity and stability of fixed restorations. Most prosthetic parts are frequently fabricated from titanium. Ceramics (e.g. zirconia) and polymers (e.g. PEEK and BIOHPP) have recently been included in these fabrications. The mandibular movement produces complex patterns of stress and strain. Mandibular fractures may result from these stresses and strains exceeding the critical limits because of the impact force from falls or accidents. Therefore, it is necessary to evaluate the biomechanical behavior of the edentulous mandible with different restorations under different loading situations.ObjectiveThis study analyzes the biomechanical behavior of mandibles after four prosthetic restorations for rehabilitation under normal and impact loading scenarios.Material and MethodsThe mandibular model was constructed with a fixed restoration, which was simulated using various materials (e.g. Titanium, Zirconia & BIOHPP), under frontal bite force, maximum intercuspation, and chin impact force. From the extraction of tensile and compressive stresses and strains, as well as the total deformation of mandible segments, the biomechanical behavior and clinical situations were studied.ResultsUnder frontal bite, the anterior body exhibited the highest tensile (60.34 MPa) and compressive (108.81 MPa) stresses using restoration 4, while the condyles and angles had the lowest tensile (7.12 MPa) and compressive (12.67 MPa) stresses using restoration 3. Under maximum intercuspation, the highest tensile (40.02 MPa) and compressive (98.87 MPa) stresses were generated on the anterior body of the cortical bone using restoration 4. Additionally, the lowest tensile (7.7 MPa) and compressive (10.08 MPa) stresses were generated on the condyles and angles, respectively, using restoration 3. Under chin impact, the highest tensile (374.57 MPa) and compressive (387.3 MPa) stresses were generated on the anterior body using restoration 4. Additionally, the lowest tensile (0.65 MPa) and compressive (0.57 MPa) stresses were generated on the coronoid processes using restoration 3. For all loading scenarios, the anterior body of the mandible had the highest stress and strain values compared with the other segments. Compared to the traditional titanium restoration.2, restoration.1(zirconia) increases the tensile and compressive stresses and strains on the mandibular segments, in contrast to restoration.3 (BIOHPP). In addition, zirconia implants exhibited higher displacements than the other implants.ConclusionIn the normal loading scenario, the tensile and compressive stresses and strains on the mandible were within the allowable limits when all restorations were used. Under the chin impact loading scenario, the anterior body of the mandible was damaged by restorations 1 and 4.

Re-evaluating the human remains from El Bosquet cave (Mont-ral, Tarragona, Spain): healed trauma and forgotten past.

During the early development of archaeology in Spain, many of the materials obtained from excavations were later forgotten in museum deposits. However, re-investigation of these collections with contemporary methodologies can still contribute valuable knowledge. This study presents the case of El Bosquet Cave (Mont-ral, Tarragona, Spain), located in the Northeastern Iberian Peninsula. This cave was excavated and documented in 1956 and the recovered materials were transferred, years later, to the Reus Museum, where they are currently located. Our results provide a more precise Middle Bronze Age chronology for the site in addition to bioarchaeological conclusions on the human remains from four individuals. Of note is a healed mandibular fracture in one of the individuals. Trauma observed in human skeletal remains reflect the conditions and risks of human groups in relation to daily activities or may be the result of interpersonal violence. In the Iberian Peninsula there are very few documented cases of mandibular fractures in prehistoric populations. This study contributes to the knowledge of the populations of the recent prehistory in the region of Catalonia and highlights the importance of reanalyzing the collections that are deposited and, in many cases forgotten, in the different museums of the territory.

Antiresorptive therapy in combination with radiation results in enhanced risk for necrosis and associated complicatifions

Patients exposed to a combination of antiresorptive medication and radiotherapy of the head and neck area developing necrosis of the jaw in the course of treatment are extremely rare. Therefore the aim of this study was to identify outcome and complications in this highly vulnerable patient cohort. Patients and Methods: Seventeen patients who received both, antiresorptive treatment and radiotherapy (MRONJ/ORN-Group) in the head and neck area were enrolled in this study. Included patients were treated in our department between 2005 and 2022. 424 patients with medication-related osteonecrosis of the jaw (MRONJ-Group) and 138 patients with osteoradionecrosis of the jaw were enrolled as two control groups (ORN-Group). Demographic data, lesion localisation, date of primary diagnosis, clinical symptoms, type of therapy (surgical or non-surgical), details on antiresorptive treatment, outcome, and complications were recorded. Results: Pathological fractures, continuity resection and recurrence appear more often in patients who receive a combination of antiresorptive treatment and radiotherapy in the head and neck area compared to patients undergoing only one of these treatments. There was a statistically significant difference (p<0.001) between MRONJ/ORN-Group and MRONJ-Group and MRONJ/ORN-Group and ORN-Group considering recurrence, fracture and continuity resection. Patients with ORN combined with MRONJ have a 4-times higher risk for developing recurrence compared to patients with MRONJ and a 1.5-times higher risk for recurrence compared to patients with ORN. Jaw fracture and continuity resection appear more often in patients with MRONJ/ORN. Conclusion: Patients under antiresorptive therapy in combination with radiation therapy in the head and neck area have a higher risk for developing complications in case of osteonecrosis of the jaws. Therefore, a strict follow-up care schedule is highly recommended.

Comparative Study between Titanium Miniplates and Three-dimensional C Plates for Fixation of Mandibular Fractures in the Mental Nerve Region: Randomised, Clinical Study

Abstract Introduction: Mandibular fractures, representing 35.54%–44.2% of facial fractures, often affect the mandibular body and subcondylar region. Effective treatment seeks optimal reduction, stable fixation and functional restoration. This study assesses a modified three-dimensional C plate’s efficacy in treating mandibular fractures, emphasising occlusal forces and the mental nerve region. Materials and Methods: A randomised clinical trial (2019–2024) involving 20 patients with mandibular fractures was conducted. Group A (10 patients) received the modified C titanium plate and Group B (10 patients) received conventional miniplates. The clinical parameters – pain, occlusion, mobility, bite force and neurosensory deficits – were evaluated pre- and postoperatively at various intervals. Statistical analysis was performed using the SPSS software. Results: Group A shows superior bite force and functional outcomes, with significant neurosensory recovery by the 10th day. Both groups had no plate fractures, screw loosening or infections. Group A also had better stability, reduced procedural time and improved post-operative comfort. Conclusions: The modified C miniplate provides superior stabilisation, simplifies application, reduces complications and enhances early functional recovery compared to conventional miniplates.

MARes-Net: multi-scale attention residual network for jaw cyst image segmentation.

Jaw cyst is a fluid-containing cystic lesion that can occur in any part of the jaw and cause facial swelling, dental lesions, jaw fractures, and other associated issues. Due to the diversity and complexity of jaw images, existing deep-learning methods still have challenges in segmentation. To this end, we propose MARes-Net, an innovative multi-scale attentional residual network architecture. Firstly, the residual connection is used to optimize the encoder-decoder process, which effectively solves the gradient disappearance problem and improves the training efficiency and optimization ability. Secondly, the scale-aware feature extraction module (SFEM) significantly enhances the network's perceptual abilities by extending its receptive field across various scales, spaces, and channel dimensions. Thirdly, the multi-scale compression excitation module (MCEM) compresses and excites the feature map, and combines it with contextual information to obtain better model performance capabilities. Furthermore, the introduction of the attention gate module marks a significant advancement in refining the feature map output. Finally, rigorous experimentation conducted on the original jaw cyst dataset provided by Quzhou People's Hospital to verify the validity of MARes-Net architecture. The experimental data showed that precision, recall, IoU and F1-score of MARes-Net reached 93.84%, 93.70%, 86.17%, and 93.21%, respectively. Compared with existing models, our MARes-Net shows its unparalleled capabilities in accurately delineating and localizing anatomical structures in the jaw cyst image segmentation.

Impact of Mandibular Third Molars on Mandibular Angle Fracture

Impact of Mandibular Third Molars on Mandibular Angle Fracture

Efficacy of Three-Dimensional Plating Systems in the Management of the Mandibular Fractures - A Literature Review

Efficacy of Three-Dimensional Plating Systems in the Management of the Mandibular Fractures - A Literature Review

The Different Surgical Approaches to Maxillofacial Reconstruction after Ballistic Trauma.

Ballistic trauma to the face is a challenge, combining complex bone injury with severe soft tissue loss. The various surgical methods available are influenced by the extent of injuries. This study compares different operative modalities and their outcomes with different variables, aiming to define the ideal therapeutic approach. We retrospectively compared reconstructive modalities used to treat facial ballistic trauma cases at Hôtel-Dieu de France Hospital, Beirut, Lebanon, for a 12-year span. Statistical analysis was used to determine correlation between several factors and satisfactory results. Eighteen patients were included, with varying degrees of bone and soft tissue loss. After conservative debridement, fractures were treated by different modalities: open reduction and internal fixation, maxillomandibular fixation, and osteosynthesis with a reconstruction plate. Although primary closure was sufficient in 10 cases, severe loss of tissues was reconstructed with a fibular free flap in five cases, radial free forearm flap in two cases, and free parascapular flap in one case. Two others received an iliac bone graft as secondary reconstruction. The average follow-up was 2.45 years. Most cases achieved good aesthetic and functional results after several secondary operations, with few late complications. Early reconstruction and younger patients were associated with better outcomes. We favor early debridement and reconstruction. Free flaps were ideal for extensive tissue loss. Bone grafting was needed secondarily. A single surgical procedure seldom led to satisfactory functional and aesthetic outcomes, and secondary operations were inevitable.

Electric scooter-related oral and maxillofacial injuries in Oxfordshire

Electric scooters (e-scooters) are becoming increasingly popular amongst the public. Oxfordshire is included as part of the government led e-scooter trial. This study was designed to evaluate maxillofacial injuries occurring following e-scooter accidents. A single-centre retrospective study was conducted from October 2022 to September 2023 reviewing all e-scooter-related maxillofacial injuries which presented to the John Radcliffe Hospital in Oxford. During the study period, forty-nine patients (mean [range] age 28 [13-48] years; 32 [65.3%] male) suffered maxillofacial injuries from riding an e-scooter. Twenty patients (40.8%) were under the influence of alcohol and no individual was recorded to have worn a helmet at the time the injury occurred. Ten patients (20.4%) suffered a facial fracture (two mandibular fractures, three zygomatic-orbital fractures, one nasal fracture, and four patients with multiple fractures involving the sphenoid, zygomatic-orbital, and maxillary sinus). Four (40%) of these facial fractures required surgical management. This included one patient with an orbital floor fracture and an associated inferior rectus entrapment, which is a surgical emergency. Thirty-three patients (67.3%) sustained facial lacerations and nine patients (18.4%) sustained dental trauma. Maxillofacial injuries occurring from e-scooter injuries are significant and pose a notable risk to safety. Our study highlights poor compliance and emphasises the need to improve safety through public education, focussing on sobriety. Considerations should be given to speed limitations, safety clothing, e-scooter training, and whether helmets should be mandatory. The Oxfordshire trial is due to end in May 2026 and our results can inform and influence future legislation.

Titanium vs PEO Surface-Modified Magnesium Plate Fixation in a Mandible Bone Healing Model in Sheep.

Titanium plates are the current gold standard for fracture fixation of the mandible. Magnesium alloys such as WE43 are suitable biodegradable alternatives due to their high biocompatibility and elasticity modulus close to those of cortical bone. By surface modification, the reagibility of magnesium and thus hydrogen gas accumulation per time are further reduced, bringing plate fixation with magnesium closer to clinical application. This study aimed to compare bone healing in a monocortical mandibular fracture model in sheep with a human-standard size, magnesium-based, plasma electrolytic-oxidation (PEO) surface modified miniplate fixation system following 4 and 12 weeks. Bone healing was analyzed using micro-computed tomography and histological analysis with Movat's pentachrome and Giemsa staining. For evaluation of the tissue's osteogenic activity, polychrome fluorescent labeling was performed, and vascularization was analyzed using immunohistochemical staining for alpha-smooth muscle actin. Bone density and bone mineralization did not differ significantly between titanium and magnesium (BV/TV: T1: 8.74 ± 2.30%, M1: 6.83 ± 2.89%, p = 0.589 and T2: 71.99 ± 3.13%, M2: 68.58 ± 3.74%, p = 0.394; MinB: T1: 26.16 ± 9.21%, M1: 22.15 ± 7.99%, p = 0.818 and T2: 77.56 ± 3.61%, M2: 79.06 ± 4.46%, p = 0.699). After 12 weeks, minor differences were observed regarding bone microstructure, osteogenic activity, and vascularization. There was significance with regard to bone microstructure (TrTh: T2: 0.08 ± 0.01 mm, M2: 0.06 ± 0.01 mm; p = 0.041). Nevertheless, these differences did not interfere with bone healing. In this study, adequate bone healing was observed in both groups. Only after 12 weeks were some differences detected with larger trabecular spacing and more vessel density in magnesium vs titanium plates. However, a longer observational time with full resorption of the implants should be targeted in future investigations.

Refractory Toothache: A Multiple Myeloma Case Report

We report a case of Multiple Myeloma (MM) with an unusual presentation: pathological mandibular fracture. The patient presented at the Dentist with a toothache and a tooth infection was suspected. After a few appointments without pain relief, a pathological mandibular fracture was diagnosed. Monoclonal plasma cells were identified in the bone biopsy performed. With this case we want to highlight the importance of formulating MM as a differential diagnosis of refractory toothache

Comparative Study of Computerized Tomography Imaging of Facial Trauma Using 2D and 3D Reconstruction Scans.

Background The article intends to compare the efficacy of detecting fractures of facial bones in terms of the number of fractures detected, single or multiple involvement, displaced or undisplaced, segmental involvement, and comminuted or non-comminuted using 2D computerized tomography (CT) versus 3DCT for planning optimum treatment. Methodology One hundred patients with suspected facial bone fractures sustained either by assault, road traffic accident, or self-fall on arrival to casualty were examined clinically. Subsequently, palpation was done to detect facial bone fractures. On suspicion, they were subjected to a CT scan of the face in both coronal and axial views. The results were interpreted in the form of bones involved and detection of fractures of the same on both 2D and 3D scans. The acquired images of fractures obtained by 2D scan were reconstructed using software to obtain virtual images of the same by 3D scan to help further delineate which fractures or combination of them are better appreciated on both scans. Result Out of 100 patients, 52 had maxilla fractures, which were better delineated by 3D scans. The detection of zygomatic arch fractures was almost equal on both scans. Mandibular and orbital fractures were better delineated by 3D scans. Conclusion To conclude, we believe that in maxillofacial trauma, 3DCT provides better information than 2DCT, especially with regard to the delineation of fractures and the involvement of single or multiple bones, as it gives a real-time picture of the same. This helpsin planning the management of patients, whether surgical intervention is required or can be managed conservatively.

Retromolar intubation for the general anesthesia of maxillofacial fracture patients

BackgroundEvaluate the possibility of retromolar intubation for general anesthesia in patients with maxillofacial fractures.MethodsThe medical records of 54 patients with maxillofacial fractures who visited the Oral and Maxillofacial Surgery Department of Nantong First People’s Hospital from January 2020 to August 2022 were collected. The retromolar areas of each patient were measured from the coronal CT images, and correlated with the patient’s age, sex, type of fracture (i.e., maxillary fracture, mandibular fracture, or complex fracture of multiple maxillofacial bones), and the presence of the third molar (verified from 3D CT). The dimensions of the retromolar areas were finally compared with the outer diameter (OD) of standard endotracheal tubes (ETTs), most importantly the size 7.5 ETT (OD 10.3 mm) for male and the size 7.0 ETT (OD 9.8 mm) for female.ResultsThe survey included 38 male and 16 female patients, with an average age of 44.1 and 54.3 years, respectively. The dimensions of the retromolar area (height × width) were as follows: male, (9.39 ± 1.77) mm × (12.08 ± 0.98) mm on the left and (9.81 ± 2.23) mm × (11.77 ± 1.08) mm on the right; female, (8.82 ± 1.53) mm × (10.51 ± 1.00) mm on the left and (9.73 ± 1.60) mm × (10.63 ± 1.58) mm on the right. The width was always larger than the OD of the routinely used ETT, but the height could be smaller by less than 1 mm. However, the oral mucosa can be compressed to allow the ETT to fit in the retromolar area.ConclusionsThe retromolar area provided appropriate space to place a reinforced ETT for patients with maxillofacial fractures needing general anesthesia that must not interfere with intermaxillary ligation. Retromolar intubation can help maxillofacial fracture surgeries that focus on occlusal restoration.