Phase-field models are a leading approach for realistic fracture problems. They treat the crack as second phase and use gradient terms to smear out faces, enabling of standard numerical methods simulations. This regularization causes cracks occupy finite volume in reference, leads inability appropriately model closing or contacting -- without healing faces. Specifically, classical idealized fac...

COMPLEX, OPEN MAXILLOFACIAL FRACTURES ARE OFTEN ACCOMPANIED BY EXTENSIVE CONTAMINATION, CRUSH, OR AVULSION OF THE OVERLYING SOFT TISSUE, THERE HAVE BEEN TWO ALTERNATIVES TO TREATMENT: either radical debridement of all contaminated tissue, fixation of the underlying fractures, and soft tissue closure by pedicle flap or graft is done; or more conservative debridement is repeated multiple times un...

Abstract Volumetric fracturing is an effective way to develop shale oil. Fracturing forms a complex system of fractures various scales that can be divided into micro-fractures, secondary fractures, and primary fractures. To improve the conductivity multiscale in volumetric Jimsar oil, experiments were performed under such conditions as rough without proppant placement, with straight discontinuo...

Zygomaticomaxillary complex (ZMC) fracture is the second most common facial bone fractures after nasal bone and has been extensively described in the literature. Numerous techniques have been described for the reduction of ZMC fracture. This case report presents a 21-year-old man who was involved in a traffic accident and who subsequently presented with a ZMC fracture. The patient was treated t...

OBJECTIVE The fractures of facial structures lead to great morbidity. Cross-sectional studies are needed to evaluate the current state of maxillofacial traumas. Thus, this study aims to evaluate these experiences and to compare these results with the current literature. MATERIALS AND METHODS The medical records of the maxillofacial fracture cases hospitalized between January 2004 and November...

This article reviews cases of mandibular fractures treated at the Service of Oral and Maxillofacial Surgery of the Hospital Complex of Mandaqui (SUS/SP), which is a reference hospital complex for trauma in the northern area of the city of São Paulo, Brazil. Ninety-eight patients with mandibular fractures were seen at the hospital between January and December, 2001. Out of this total, 91 cases w...

Arcus zygomaticus is one of the weakest parts in the facial bone that can be easily affected and fractured by traumas. The typical shape of the fracture is midline depression and separation from zygomatic and temporal bone. Sometimes by the whole arcus fracture can be occur. The arcus fractures can be seen the component of the zygomatic complex fracture and also may happen as an isolated damage...

OBJECTIVE Treatment of acetabular fractures remains one of the most challenging tasks that orthopaedic surgeons face. An accurate assessment of the injuries and preoperative planning are essential for an excellent reduction. The purpose of this study was to evaluate the feasibility, accuracy and effectiveness of performing 3D printing technology and computer-assisted virtual surgical procedures...

PURPOSE Maxillofacial fractures are rapidly increasing from car accidents, industrial accidents, teenaged criminal activity, and sports injuries. Accurate assessment, appropriate diagnosis, and preparing individual treatment plans are necessary to reduce surgical complications. We investigated recent trends of facial bone fracture by period, cause, and type, with the objective of reducing surgi...

In the United States, an estimated 19% of older men and 30% of older women are at elevated risk of osteoporotic fracture and considered to be eligible for treatment. The burden of osteoporosis is similar in Europe and is projected to rise worldwide, with aging populations and increasing fracture rates accompanying urbanization. Notwithstanding its high prevalence, osteoporosis is often underdia...