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Mandibular fracture

Loreto Castellon, Daniel Jerez, Jaime Mayorga, Alejandra Gallego, Carlos Fuenzalida, German Laissle
: Mandibular reconstruction in pediatric patients is controversial. The scant pediatric experience and the infrequent occurrence of this type of pathology in children complicate therapeutic decisions. The literature contains different treatment protocols and describes the bone graft alternatives to be used. MATERIALS AND METHOD: This is a retrospective review of patients under the age of 15 who were subjected to resection and reconstruction. RESULTS: A total of 18 patients were included in the study: 8 women and 10 men...
June 18, 2018: Journal of Craniofacial Surgery
A V J Rozeboom, L T Klumpert, M Koutris, L Dubois, C M Speksnijder, F Lobbezoo, J de Lange
The treatment of mandibular condyle fractures has been the subject of considerable discussion, especially whether open or closed treatment should be used. There is a need for practical,evidence-based guidelines, and both objective and subjective parameters should be measured. To date, fewstudies have considered clinically relevant subjective parameters. This study was performed to evaluate the outcomes of the treatment of condylar fractures using the Mandibular Function Impairment Questionnaire (MFIQ) and the Diagnostic Criteria for Temporomandibular Disorders (DC/TMD) and to compare the outcomes of open and the closed treatment...
June 13, 2018: International Journal of Oral and Maxillofacial Surgery
Hua-Lun Wang, Pei-Pei Zhang, Li Meng, Su-Xia Liang, Hao Liu, Ying-Bin Yan
PURPOSE: The aim of this experimental study was to investigate the role of the fibrous layer of the condylar head in the formation of temporomandibular joint (TMJ) ankylosis in a sheep model of intracapsular condylar fracture. MATERIALS AND METHODS: Six growing Xiao-wei Han sheep were used in the study, and bilateral TMJ surgery was performed in each sheep. In the left TMJ, sagittal fracture of the condyle, removal of the fibrous layer of the condylar head, excision of two thirds of the disc, and removal of the fibrous zone of the glenoid fossa were performed...
May 24, 2018: Journal of Oral and Maxillofacial Surgery
Bruno Salles Sotto-Maior, Rafael Corrêa Carneiro, Carlos Eduardo Francischone, Neuza Maria Souza Picorelli Assis, Karina Lopes Devito, Plinio Mendes Senna
PURPOSE: To evaluate the fracture resistance after the thermal and mechanical fatigue of feldspathic, lithium disilicate, and resin-modified CAD/CAM monolithic crowns cemented onto a universal post abutment. MATERIALS AND METHODS: A right second mandibular molar was designed in CAD/CAM software, and 30 crowns were machined using three different materials (n = 10): feldspathic ceramic, finished only with a glaze cycle (G1); lithium disilicate, sintered and finished with a glaze cycle (G2); and resin, modified by nanoceramic and finished with rubber (G3)...
June 13, 2018: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
Kleber Tetsuo Kurimori, Endrigo Oliveira Bastos, Walter Amorim de Oliveira, Nivaldo Alonso
Despite condylar fractures representing one of the most common sites of mandibular fractures, intracranial condylar dislocation is a rare event. In this article, the authors report 2 patients. The first patient is a young female with signs and symptoms as commonly reported in the literature. The second patient reports the consequences of a delayed diagnosis of intracranial condylar fracture dislocation. Both patients underwent surgical treatment. These patients are discussed with a review of the literature, noting biomechanics and mechanism of injury, diagnostic methods, and the treatment for these fractures...
June 11, 2018: Journal of Craniofacial Surgery
Ashrafullah, Ramesh Kumar Pandey, Apurva Mishra
Objective: To determine the incidence and pattern of facial fracture in children of age 0-16 years of age. Material & methods: Patients with trauma reporting to department of paediatric and preventive dentistry and department of oral & maxillofacial surgery from January 2011 to December 2011 were selected for the present study. The records of patients treated for maxillofacial injuries were retrospectively retrieved and analyzed for prevalence, pattern, etiology, and management of maxillofacial trauma...
May 2018: Journal of Oral Biology and Craniofacial Research
Tabishur Rahman
We describe a case of maxillofacial trauma in a pediatric patient in whom the mandibular condyle was superolaterally displaced into the temporal fossa, medial to the zygomatic arch which was intact. In addition, there was an associated mandibular symphyseal fracture. To our knowledge, this case is the first of its kind to be reported in the literature. We also observed a complication in the form of development of ankylosis in the involved joint which required another surgery.
June 2018: Craniomaxillofacial Trauma & Reconstruction
Payam Farzad
The use of virtual surgical planning and computer-aided design/computer-aided manufacturing has previously been reported to enhance the planning for the reconstruction of mandibular continuity defects and to reduce surgical time. Reported is a case of a large keratocystic odontogenic tumor (KOT) affecting right hemimandible including the condylar neck. This case was initially reconstructed with a condyle-bearing reconstruction plate, but because of fatigue fracture 15 years later, a new reconstruction with a custom-made total joint temporomandibular prosthesis was performed...
June 2018: Craniomaxillofacial Trauma & Reconstruction
Sanjay Rastogi, Tousif Ahmed, Kolli Giri, Ramakant Dandriyal, Niranjana Prasad Indra B, Ankur Joshi, Shouvik Choudhury, Sunil Mall
The aim of this prospective study was to appraise the role of embrasure wiring in the treatment of mandibular fractures over the arch bar as adjunctive techniques of maxillomandibular fixation (MMF). This study was conducted on 40 patients who were surgically treated for mandibular fractures with accessory use of MMF (embrasure: group A vs. arch bars: group B). All patients were evaluated for demographic data, etiology, and location of fracture. Characteristically, the complications, including wire injury, infection, and malocclusion, were recorded...
June 2018: Craniomaxillofacial Trauma & Reconstruction
T Aslan, B Sagsen, Ö Er, Y Ustun, F Cinar
Objective: This study aimed to evaluate the effects of different coronal restoration techniques on fracture resistance of root canal-treated mandibular premolars with mesio-occluso-distal (MOD) cavities. Materials and Methods: A total of 105 mandibular premolars were selected and randomly distributed into seven groups (n = 15). MOD cavities were prepared except the control group. Root canal treatments were performed. Each tooth was embedded in acrylic resin. Groups were classified as follows; G1: intact teeth (control), G2: unfilled MOD cavity, G3: MOD + composite resin, G4: 10-mm-long fiber post + composite resin, G5: 5-mm-long fiber post + composite resin, G6: Ribbond in the occlusal surface + composite resin, and G7: horizontal fiber post + composite resin...
June 2018: Nigerian Journal of Clinical Practice
P Oyar, R Durkan
Objective: The purpose of this study was to evaluate the fracture resistance and failure modes of onlay restorations prepared with different preparation designs. Materials and Methods: A total of 42 extracted, mandibular first molars (36, 46) were used and divided into six groups according to preparation design, as follows 1A: Anatomic preparation of cusps/rounded shoulder margin/occlusal groove; 1B: Flat preparation of cusps/rounded shoulder margin/occlusal groove; 2A: Anatomical preparation of cusps/occlusal groove; 2B: Flat preparation of cusps/occlusal groove; 3A: Complete anatomical reduction of cusps/rounded shoulder margin; 3B: Complete flat reduction of cusps/rounded shoulder margin groups; intact tooth: No preparation...
June 2018: Nigerian Journal of Clinical Practice
Betul Gunes, Kubra Yesildal Yeter
INTRODUCTION: Creating a glide path before root canal preparation with nickel-titanium rotary files is essential to prevent the file fracture and to maintain the original root canal configuration. Both rotary glide path files and manual K-files are used to create a glide path. The aim of this study was to compare the amount of apically extruded debris after using different glide path files before preparing curved root canals with the WaveOne Gold single-file reciprocating system (Dentsply Maillefer, Ballaigues, Switzerland)...
June 5, 2018: Journal of Endodontics
Mouetaz Kheirallah, Sameer Ozzo
BACKGROUND/AIM: Teeth in mandibular fracture lines is common in maxillofacial trauma, but their retention or extraction is a matter of controversy. The aim of this study was to determine the factors related to retaining or extracting teeth situated in mandibular fracture lines and to decide the best treatment option. METHODS: The study included 115 patients with a single mandibular fracture that had a tooth in the line of fracture. All patients were evaluated for complications and pulp status...
June 5, 2018: Dental Traumatology: Official Publication of International Association for Dental Traumatology
Nereu Roque Dartora, Michele Bertoluzi de Conto Ferreira, Izabela Cristina Maurício Moris, Elisabeth Helena Brazão, Aloísio Oro Spazin, Manoel Damião Sousa-Neto, Yara Terezinha Silva-Sousa, Erica Alves Gomes
INTRODUCTION: Endodontically treated teeth have an increased risk of biomechanical failure because of significant loss of tooth structure. The biomechanical behavior of endodontically treated teeth restored was evaluated using different extensions of endocrowns inside the pulp chamber by in vitro and 3-dimensional finite element analysis (FEA). METHODS: Thirty mandibular human molars were endodontically treated. Standardized endocrown preparations were performed, and the teeth were randomly divided into 3 groups (n = 10) according to different endocrown extensions inside the pulp chamber: G-5 mm, a 5-mm extension; G-3 mm, a 3-mm extension; and G-1 mm, a 1-mm extension...
June 1, 2018: Journal of Endodontics
Sigbjørn H Storli, Robert A Menzies, Alexander M Reiter
A search of the medical and dental records at Evidensia Lørenskog Dyreklinikk, in Lørenskog, Norway, was conducted to identify dogs that received temporary crown extensions (TCEs) to correct linguoverted mandibular canine (LMC) teeth over a 54-month investigation period (2012-2016). Criteria for inclusion into the study were the presence of complete medical and dental records, pre- and postoperative clinical photographs and intraoral radiographs of the affected canine teeth, adequate information pertaining to the procedures performed, and at least 1 follow-up >3 months after appliance removal...
June 2018: Journal of Veterinary Dentistry
Brett J King, Earl Peter Park, Brian J Christensen, Raman Danrad
PURPOSE: The purpose of this study was to compare the intraoperative time and operating room costs between patients with mandibular fractures treated with traditional adaptation and fixation and patients treated with preadapted plates created with on-site 3-dimensionally printed models. PATIENTS AND METHODS: We designed a prospective comparative cohort study for patients with mandibular fractures. The control group received traditional open reduction and internal fixation of their mandibular fractures...
May 15, 2018: Journal of Oral and Maxillofacial Surgery
A M Silva, T Tomé, C Cunha, J d'Oliveira Coelho, A C Valera, V Filipe, G R Scott
In 2009, a pit burial dated to the Bronze Age was excavated in Monte do Gato de Cima 3 (Portugal). The purpose of this paper is to describe the pathological absence of the left mandibular condyle noted in an adult male skeleton and to discuss possible diagnoses, including subcondylar fracture, cystic defect, congenital absence, condylar aplasia and mandibular condylysis. The most likely explanation for the pathological alteration is subcondylar fracture with non-union. Although the occurrence of non-union and slight osteoarthritic alterations in the left glenoid fossa were evident, this mandible was likely functional, as can be inferred from dental wear and muscle attachment sites...
May 29, 2018: International Journal of Paleopathology
Rosiane Alfinito Roeder, Lifei Guo, Alan A Lim
Condylar fractures account for one third of all mandibular fractures. Despite being highly prevalent, treatment of these fractures remains controversial because of the sequelae of inadequate closed reduction and the risks associated with open repair. Multiple studies attempt to compare closed reduction with maxillomandibular fixation (MMF), open reduction with internal fixation, and endoscopic reduction with internal fixation. In our practice, we favor closed reduction with MMF except in cases of significantly displaced subcondylar fractures...
May 24, 2018: Annals of Plastic Surgery
Polianne Alves Mendes, Isabela Moreira Neiva, Cláudia Borges Brasileiro, Ana Cristina Rodrigues Antunes Souza, Leandro Napier Souza
Taurodontism is considered a dental anomaly responsible for a morphoanatomical change in the shape of the tooth in which the roots are reduced in size but the body of the tooth is enlarged and bulky. The aim of this paper is to present a case of a 25-year-old female patient with taurodontism of mandibular partially erupted third molars, presenting a high risk of angle fracture and paresthesia in case of their removal, treated by means of coronectomy. The postoperative period was uneventful and the patient remained in follow-up for 12 months...
2018: Case Reports in Dentistry
Srinivasa Gowda, Dilip D Quadras, Shetty R Sesappa, G R Ramakrishna Maiya, Lalit Kumar, Dinraj Kulkarni, Nitu Mishra
AIM: The aim of the study was to evaluate the fracture strength of three types of composite core build-up materials. The objectives were to study and evaluate the fracture strength and type of fracture in composite core build-up in restoration of endodonti-cally treated teeth with or without a prefabricated metallic post. MATERIALS AND METHODS: A total of 60 freshly extracted mandibular premolars free of caries, cracks, or fractures were end-odontically treated and restored with composite core build-up with prefabricated metallic posts cemented with resin luting cement (group I) and without a post (group II)...
May 1, 2018: Journal of Contemporary Dental Practice
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