11,024 results match your criteria Fracture Mandible


Finite element analysis of 3D-printed personalized titanium plates for mandibular angle fracture.

Comput Methods Biomech Biomed Engin 2022 May 19:1-12. Epub 2022 May 19.

Department of Oral and Maxillofacial Surgery, The Second Hospital of Shandong University, Jinan, Shandong Province, People's Republic of China.

This paper discussed the size of 3 D-printed personalized titanium plates that can gain maximum stability of mandibular fracture and minimize stress shielding through finite element analysis. A 3 D virtual model of mandible with mandibular angle fracture was created from the CT data of patient. 3 D-printed personalized titanium plates varying in length and thickness were designed, and finite element analysis was performed under different loading conditions and fracture healing periods. Read More

View Article and Full-Text PDF

[Clinical application of disc reduction and anchorage for diacapitular condylar fracture with disc displacement].

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi 2022 May;36(5):587-591

Department of Stomatology, the First Affiliated Hospital of Bengbu Medical College, Bengbu Anhui, 233004, P. R. China.

Objective: To investigate the effectiveness of disc reduction and anchorage in treatment of diacapitular condylar fracture with disc displacement.

Methods: Between June 2019 and June 2021, 20 patients (27 sides) with diacapitular condylar fractures with disc displacement were treated with disc reduction and anchorage combined with internal fixation. There were 15 males and 5 females with a median age of 40 years (range, 8-65 years). Read More

View Article and Full-Text PDF

Effect of three newer generation rotary files on smear layer removal using fumaric acid as an irrigant: A SEM study.

J Conserv Dent 2021 Nov-Dec;24(6):549-552. Epub 2022 Apr 1.

Department of Conservative Dentistry and Endodontics, Career Post Graduate Institute of Dental Sciences, Lucknow, Uttar Pradesh, India.

Background: To evaluate the efficacy of the smear layer removal with Fumaric acid when used in combination with new generation files Hyflex Electrical Discharge Machining (HEDM) file, Neoendo file, and Blueflex file.

Materials And Methods: Sixty extracted mandibular premolars with single-canal were selected for this study. Radiographs were taken to confirm the presence of single canal and absence of any type of calcifications, resorption, cracks, and fractures. Read More

View Article and Full-Text PDF

Plate-related complication and health-related quality of life after mandibular reconstruction by fibula flap with reconstruction plate or miniplate versus anterolateral thigh flap with reconstruction plate.

Microsurgery 2022 May 12. Epub 2022 May 12.

Division of Plastic and Reconstructive Surgery, Department of Surgery, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan.

Background: Plate-related complications are major long-term complications in mandible reconstruction. There are controversies regarding the use of a reconstruction plate versus miniplates and a bone flap versus a soft tissue flap with a bridging plate. Direct comparisons of a fibula flap and an anterolateral thigh flap, the applicability between a reconstruction plate and miniplate, and the correlation between plate-related complications and quality of life remain unclarified. Read More

View Article and Full-Text PDF

Indirect vs direct bonding of mandibular fixed retainers in orthodontic patients: Comparison of retainer failures and posttreatment stability. A 5-year follow-up of a single-center randomized controlled trial.

Am J Orthod Dentofacial Orthop 2022 May 9. Epub 2022 May 9.

Melbourne Dental School, Faculty of Medicine, Dentistry, and Health Sciences, University of Melbourne, Melbourne, Australia.

Introduction: This 2-arm parallel trial aimed to assess the number of failures of mandibular fixed retainers bonded with direct and indirect bonding methods at a 5-year follow-up and investigate the stability of intercanine and interpremolar distances.

Methods: Consecutive patients from the clinic of the University of Geneva (Switzerland) were randomly allocated to either direct or indirect bonding of a mandibular fixed retainer at the end of orthodontic treatment. Inclusion criteria included the presence of all mandibular incisors and canines; and the absence of active caries, restorations, fractures, or periodontal disease of these teeth. Read More

View Article and Full-Text PDF

Incidence of fracture of ProDesign Logic system instruments: A cross-sectional retrospective study.

Sci Rep 2022 May 12;12(1):7897. Epub 2022 May 12.

Department of Endodontics, School of Dentistry, Paranaense University - UNIPAR, Francisco Beltrão, Paraná, Brazil.

The aim of the present study was to analyze the incidence of fracture of ProDesign Logic system instruments in endodontic treatments performed by a specialist, in addition to identifying the dental group, arch, and the root canal thirds in which the fractures occurred more frequently. Digital radiographs and medical records were initially analyzed and resulted in the selection of 561 teeth (1302 canals) treated between 2018 and 2020, using the ProDesign Logic system instruments. These data were reassessed to determine the occurrence of fractures and identify the dental group and root canal thirds in which they occurred. Read More

View Article and Full-Text PDF

Effect of delayed photobiomodulation therapy on neurosensory recovery in patients with mandibular nerve neurotmesis following traumatic mandibular fracture: A randomized triple-blinded clinical trial.

J Photochem Photobiol B 2022 May 2;232:112460. Epub 2022 May 2.

Radiation Sciences Research Center, Laser Research Center in Medical Sciences, Aja University of Medical Sciences, Tehran, Iran; International Network for Photo Medicine and Photo Dynamic Therapy (INPMPDT), Universal Scientific Education and Research Network (USERN), Tehran, Iran. Electronic address:

Introduction: There is a possibility of neurotmesis of the inferior alveolar nerve (IAN) in mandibular fractures, which leads to neurosensory impairment. In this study, we aimed to investigate the efficacy of photobiomodulation therapy (PBMT) in patients with neurotmesis following trauma and mandibular fracture.

Materials And Methods: This triple-blind randomized trial was carried out on patients who suffered neurotmesis of the IAN following mandibular angle and body fracture at least for 6 months. Read More

View Article and Full-Text PDF

Preauricular anteroparotid transmasseteric approach of the mandibular condyle: the natural evolution after cervical dissections? An anatomical feasibility study.

J Stomatol Oral Maxillofac Surg 2022 May 8. Epub 2022 May 8.

Rouen University Hospital, Department of Oral and Maxillofacial Surgery, F 76000 Rouen, France; Laboratory of Anatomy, Faculty of Medicine-Pharmacy, Rouen-Normandie University, 22 Boulevard Gambetta, 76183, Rouen, France.

The purpose of this study was to evaluate the reliability and reproducibility of a novel approach for base and neck fractures of the mandible. An anatomical study was conducted on 22 given to Science subjects. A rhytidectomy-like approach was performed, followed by a transmasseteric anteroparotid dissection. Read More

View Article and Full-Text PDF

Investigation of the biomechanical stability of Cfr-PEEK in the treatment of mandibular angulus fractures by finite element analysis.

J Stomatol Oral Maxillofac Surg 2022 May 8. Epub 2022 May 8.

Department of Oral and Maxillofacial Surgery, Ordu University, Ordu, Turkey.

The purpose of this study is to explore the effectiveness of Cfr-PEEK, in the fixation of unfavorable fractures of mandibular angulus by comparing it with the titanium and resorbable biomaterials. 8 different fixation models were created. In the first 4 groups, a single mini plate was applied to the upper edge of the fracture line by the Champy method. Read More

View Article and Full-Text PDF

Journal of Oral and Maxillofacial Surgery Maxillofacial Fractures in Electric and Conventional Bicycle-Related Accidents.

J Oral Maxillofac Surg 2022 Apr 6. Epub 2022 Apr 6.

Senior scientist, Principal investigator, Department of Trauma Surgery, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands; Senior scientist, Emergency Care Network Northern Netherlands (AZNN), Northern Netherlands Trauma Registry, The Netherlands.

Purpose: With the increased use of both e-bike and conventional bicycle, the number of bicycle-related accidents has increased accordingly. To determine whether there are differences in maxillofacial injuries between these 2 types of bicycle accidents, e-bike and conventional bicycle accidents were compared.

Material And Methods: A retrospective cohort study was conducted for all the consecutive patients with maxillofacial injury due to e-bike and conventional bicycle accidents attending the emergency department of 4 hospitals in the Netherlands between May 2018 and October 2019. Read More

View Article and Full-Text PDF

Clinical and radiographic predictors of the need for facial CT in pediatric blunt trauma: a multi-institutional study.

Trauma Surg Acute Care Open 2022 24;7(1):e000899. Epub 2022 Apr 24.

Department of Radiology, University at Buffalo, Buffalo, New York, USA.

Background: Facial injuries are common in children with blunt trauma. Most are soft tissue lacerations and dental injuries readily apparent on clinical examination. Fractures requiring operative intervention are rare. Read More

View Article and Full-Text PDF

Survival analysis of three types of maxillary and mandibular bonded orthodontic retainers: a retrospective cohort.

BMC Oral Health 2022 05 6;22(1):159. Epub 2022 May 6.

Department of Orthodontics, School of Dentistry, Kermanshah University of Medical Sciences, Shariati Street, Kermanshah, 67139546581, Iran.

Background: Retention is an important aspect of orthodontic treatment. This study aimed to analyze the survival of three types of maxillary and mandibular bonded orthodontic retainers.

Methods: This retrospective cohort study evaluated the records of 118 orthodontic patients (90 females, 28 males, mean age of 22. Read More

View Article and Full-Text PDF

Comparative Evaluation of Load-Bearing Capacity and Fracture Analysis of PEEK and Zirconia Three-Unit Fixed Dental Prostheses: An In Vitro Study.

Int J Prosthodont 2022 Mar-Apr;35(2):225-232

Purpose: The purpose of this exploratory in vitro study was to compare and evaluate the load-bearing capacity (LBC) of ceramic-veneered zirconia and composite-veneered polyetheretherketone (PEEK) three-unit fixed dental prostheses (FDPs) with and without thermocycling (TC).

Materials And Methods: The study included 40 samples of three-unit FDPs replacing mandibular first molars. The four groups included were: ceZIR (feldspathic ceramic-layered zirconia), ceZIR TC (feldspathic ceramic-layered thermocycled zirconia), cPEEK (composite-layered PEEK), and cPEEK TC (composite-layered thermocycled PEEK) (n = 10 per group). Read More

View Article and Full-Text PDF

Facial injury patterns in victims of intimate partner violence.

Emerg Radiol 2022 May 3. Epub 2022 May 3.

Trauma Imaging Research and Innovation Center, Brigham and Women's Hospital, Boston, MA, USA.

Purpose: To evaluate the imaging findings of facial injuries in patients reporting intimate partner violence (IPV).

Methods: A retrospective review of radiology studies performed for 668 patients reporting IPV to our institution's violence prevention support program identified 96 patients with 152 facial injuries. Demographics, imaging findings, and clinical data obtained from a review of the electronic medical records (EMR) were analyzed to categorize injury patterns. Read More

View Article and Full-Text PDF

ATOM technique: Anatomic reduction using screw-wire Traction for Open reduction and internal fixation of Mandibular fractures.

J Korean Assoc Oral Maxillofac Surg 2022 Apr;48(2):122-124

Department of Oral and Maxillofacial Surgery, VSPM's Dental College & Research Centre, Nagpur, India.

Various techniques are well documented to obtain anatomic reduction, such as reduction forceps, manual reduction, or a combination of these methods. However, these techniques have inherent drawbacks. We propose a new intra-operative technique for anatomic reduction using screw-wire traction for open reduction and internal fixation of mandibular fractures. Read More

View Article and Full-Text PDF

Comparative effects of systemic administration of levofloxacin and cephalexin on fracture healing in rats.

J Korean Assoc Oral Maxillofac Surg 2022 Apr;48(2):94-100

Department of Oral Pathology, Dental School, Islamic Azad University, Isfahan (Khorasgan) Branch, Isfahan, Iran.

Objectives: This study aimed to compare the effects of systemic administration of levofloxacin or cephalexin on fracture healing in rats.

Materials And Methods: In this animal study, tibial fractures not requiring fixation were artificially induced in 30 male Wistar albino rats using a 1.1 mm surgical bur. Read More

View Article and Full-Text PDF

Anatomical distribution of mandibular fractures from severe bicycling accidents: A 12-year experience from a Norwegian level 1 trauma center.

Dent Traumatol 2022 Apr 28. Epub 2022 Apr 28.

Department of Maxillofacial Surgery, Oslo University Hospital Ullevål, Oslo, Norway.

Background/aim: The mandible makes up a substantial part of the lower face, and is susceptible to injury. Even in helmeted cyclists, accidents may lead to fractures of the mandible because conventional helmets provide little protection to the lower part of the face. In addition, some studies indicate that helmets may lead to an increased risk of mandibular fractures. Read More

View Article and Full-Text PDF

Effect of Delay of Care for Patients with Craniomaxillofacial Trauma in Rwanda.

OTO Open 2022 Apr-Jun;6(2):2473974X221096032. Epub 2022 Apr 22.

Department of Surgery, University Teaching Hospital of Kigali, Kigali, Rwanda.

Objectives: Craniomaxillofacial (CMF) trauma represents a significant proportion of global surgical disease burden, disproportionally affecting low- and middle-income countries where care is often delayed. We investigated risk factors for delays to care for patients with CMF trauma presenting to the highest-volume trauma hospital in Rwanda and the impact on complication rates.

Study Design: This prospective cohort study comprised all patients with CMF trauma presenting to the University Teaching Hospital of Kigali, Rwanda, between June 1 and October 1, 2020. Read More

View Article and Full-Text PDF

Prosthetic complications and maintenance of different attachments used to stabilize mandibular 2-implant overdentures in patients with atrophied ridges. A 5-year randomized controlled clinical trial.

Clin Implant Dent Relat Res 2022 Apr 24. Epub 2022 Apr 24.

Department of Removable Prosthodontics, Faculty of Dentistry, Beni Suef University, Beni Suef, Egypt.

Purpose: This randomized clinical trial aimed to evaluate prosthetic complications and maintenance of different attachments used to stabilize mandibular 2-implant overdentures in patients with atrophied ridges.

Methods: Ninety edentulous patients with a maladaptive capacity of wearing conventional dentures due to mandibular ridge atrophy received 2-implants in the canine regions using computer-guided surgery. The patients were randomly assigned into three groups; (1) Bar group: overdentures were connected to the implants with bar/clip attachments, (2) Telescopic group: overdentures were connected to the implants using a resilient telescopic attachment, and (3) Stud group: overdentures were connected to the implants with resilient stud (Locator) attachments. Read More

View Article and Full-Text PDF

Customizable interdental splinting for repair of pediatric mandibular fractures in children with mixed dentition: A novel technique.

Int J Pediatr Otorhinolaryngol 2022 Jun 14;157:111133. Epub 2022 Apr 14.

Division of Otolaryngology, University of Utah Health, 50N Medical Drive, SOM 3C120, Salt Lake City, UT, 84132, United States.

Objective: Repair of pediatric mandibular fractures (PMFs) can be challenging due to the lack of permanent dentition for immobilization, and the presence of unerupted teeth and growth plates in the mandible limiting the space for fixation. Interdental splinting (IDS) has been advocated to provide temporary fixation without the need for mandibular plating; however, there is sparse description of the surgical methodology, and data on long term outcomes are even more limited. The aim of this study is to present our technique and outcomes using a novel technique for IDS repair of pediatric mandible fractures. Read More

View Article and Full-Text PDF

Electric scooters: a quick way to get to the emergency department?

Br Dent J 2022 04 22;232(8):535-537. Epub 2022 Apr 22.

Oral and Maxillofacial Surgery Department, King´s College Hospital, Denmark Hill, London, SE5 9RS, UK; King´s College London, University of London, UK.

Introduction Electric scooters (e-scooters) are rife but are yet to be legalised in the UK. The aim of this paper was to investigate whether there had been an increase in the number of e-scooter injuries referred to the oral and maxillofacial surgery (OMFS) service at our unit. We present here what is, to our knowledge, the largest dataset regarding e-scooter-related injuries in the UK. Read More

View Article and Full-Text PDF

Ramal bone graft for management of infra-orbital rim fractures with defects - Technical note and a series of 16 cases.

J Stomatol Oral Maxillofac Surg 2022 Apr 20. Epub 2022 Apr 20.

Oculoplasty and Orbital Surgery, Shankara Nethralaya, Chennai 600006, India.

The purpose is to describe a technique of using ramal bone graft for reconstructing defects of the infra-orbital rim (IOR), assess outcomes and complications. This was a retrospective chart review of 16 patients who underwent ramal bone grafting for IOR fractures. Outcomes evaluated were improvement in clinical findings (lid/globe malposition, tethering of facial skin and implant extrusion) and complications. Read More

View Article and Full-Text PDF

Analysis of factors that influence quality of life of individuals undergoing treatment for mandibular fractures: A systematic review and meta-analysis.

Oral Surg Oral Med Oral Pathol Oral Radiol 2022 Jan 20. Epub 2022 Jan 20.

Department of Oral Pathology, School of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil.

Objective: To address the factors that affect the quality of life (QoL) of individuals undergoing treatment for mandibular fractures.

Study Design: This review followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines and the search strategy was constructed according to the Populations, Interventions, Comparison, Outcomes, and Study Design principle in the following databases: PubMed, Web of Science, Scopus, and EMBASE. Risk of bias assessment was performed with Risk Of Bias In Non-randomized Studies of Interventions and Cochrane Risk of Bias tool for randomized trials 2. Read More

View Article and Full-Text PDF
January 2022

The use of mandibular nerve block in unilateral mandibular fracture to evaluate the mouth opening for assessment of airway.

Saudi J Anaesth 2022 Apr-Jun;16(2):194-199. Epub 2022 Mar 17.

Department of Critical Care Medicine, Manipal Hospital, Bengaluru, Karnatka, India.

Background: Facial area is one of the most frequently injured area of the body, accounting for 23-97% of all facial fractures. Treatments under general anesthesia as those for maxillofacial fractures or infections is a highly complicated and a major challenging task in trismus associated patients. The main culprit in trismus is the increase muscle tone of masticatory muscles which are supplied via the mandibular nerve, blocking which could help increase the mouth opening thus, changing the whole of airway management. Read More

View Article and Full-Text PDF

Evaluation of mandibular implant-supported fixed prosthesis retained by 3 dental implants, 1 straight and 2 angled: A retrospective clinical study.

J Prosthet Dent 2022 Apr 14. Epub 2022 Apr 14.

Professor, Department of Oral and Maxillofacial Surgery and Implantology, Faculty of Dentistry, Federal University of Uberlandia (UFU), Uberlândia, Brazil.

Statement Of Problem: The minimum number of implants to support fixed complete dentures is still unclear.

Purpose: The purpose of this retrospective clinical study was to evaluate the survival rate of fixed complete dentures supported by 3 immediately loaded implants opposing maxillary complete dentures.

Material And Methods: A retrospective study of edentulous patients rehabilitated with complete dentures opposing mandibular metal-resin implant-supported fixed complete dentures supported by 3 immediately loaded implants was conducted in a 48-hour protocol. Read More

View Article and Full-Text PDF

A clinical decision aid for patients with suspected midfacial and mandibular fractures (the REDUCTION-I study): a prospective multicentre cohort study.

Eur J Trauma Emerg Surg 2022 Apr 16. Epub 2022 Apr 16.

Department of Oral and Maxillofacial Surgery, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9700 RB, Groningen, The Netherlands.

Purpose: To assess physical examination findings related to maxillofacial trauma to identify patients at risk of midfacial and mandibular fractures and then to construct a clinical decision aid to rule out the presence of midfacial and mandibular fractures in emergency department patients.

Methods: We performed a prospective multicentre cohort study in four hospitals in the Netherlands, including consecutive patients with maxillofacial trauma. Each patient received a standardized physical examination consisting of 15 and 14 findings for midfacial and mandibular traumas, respectively. Read More

View Article and Full-Text PDF

Re-evaluating the need for orthopantomography in the management of mandibular trauma: is computed tomography enough?

Emerg Radiol 2022 Apr 15. Epub 2022 Apr 15.

Division of Plastic and Reconstructive Surgery, The Warren Alpert Medical School of Brown University, 2 Dudley Street, MOC 180, Providence, RI, 02905, USA.

Background: Mandibular fractures are frequent indications for computed tomography (CT) and orthopantomography (OPG) scans in emergency rooms. Numerous studies found CT to have higher sensitivity and enhanced accuracy compared to OPG in diagnosing mandible fractures. Controversy exists regarding additional need for OPG when evaluating dental trauma. Read More

View Article and Full-Text PDF

Epidemiology of maxillofacial injuries in "Heratsi" No 1 university hospital in Yerevan, Armenia: a retrospective study.

BMC Oral Health 2022 04 12;22(1):123. Epub 2022 Apr 12.

Administrative Department, Yerevan State Medical University, 2 Koryun Str., 0025, Yerevan, Armenia.

Background: The aim of this study was to perform a retrospective analysis of the prevalence, etiologies, types of maxillofacial injuries (MFIs), sites of maxillofacial fractures (MFFs) and their management in Yerevan, Armenia.

Methods: A retrospective cross-sectional study was conducted. The extracted data included age, sex, date of referral, mode of injury, etiology, radiology records and treatment methods. Read More

View Article and Full-Text PDF

The Osteosynthesis of the Mandibular Head, Does the Way the Screws Are Positioned Matter?

J Clin Med 2022 Apr 5;11(7). Epub 2022 Apr 5.

Department of Maxillofacial Surgery, Medical University of Lodz, 113 Żeromskiego Str., 90-549 Lodz, Poland.

Currently, an increasing number of medical centers are treating mandibular head fractures surgically. Dedicated screws for compression osteosynthesis have been developed. However, due to the very limited size of the fractured bones and the considerable technical difficulties accompanying the execution of the fixation, there is little room for correction of the positioning and reinsertion of the screws. Read More

View Article and Full-Text PDF

The effect of varying occlusal loading conditions on stress distribution in roots of sound and instrumented molar teeth. A finite element analysis.

J Endod 2022 Apr 7. Epub 2022 Apr 7.

School of Dentistry, University of Queensland, Brisbane, Australia.

Introduction: This study aimed to investigate whether the direction of force applied to the occlusal surface influenced the pattern of tensile stresses in roots of sound and root canal-prepared mandibular molar teeth. The effect of obturation forces on the development of apical stress was also investigated. To this end models were constructed using micro computed-tomography (MCT) and investigated using finite element analysis (FEA). Read More

View Article and Full-Text PDF