نتایج جستجو برای: defects
تعداد نتایج: 134014 فیلتر نتایج به سال:
Background: The standard methods for reconstruction of soft tissue defects in the leg include gastrocnemius flap for proximal third defects, soleus flap for middle third and free flap in the distal third. However, there are problems with the use of free flap, like increased operative time, damage of major vessels and the need for experienced microsurgeon. Mathods: This prospective study was und...
Background and Aims: Reconstruction of osseous defects is one of the ideal goals of periodontal treatments and dental implant therapy. Different biomaterials have been used for this purpose and many studies have tried to compare and introduce the best ones. The present study aimed to evaluate the effect of PDFDB (Partially Demineralized Freeze-Dried Bone Graft) and FDBA (Freeze Dried Bone Allog...
Lymphangiomas are rare benign tumors which involve the small bowel and produce multiple intraluminal and intramural filling defects. The patient is a 38 year old female which presented with abdominal discomfort and loss of apetite for 18 months, in small bowel transiet exam mutiple small sharply demarcated intraluminal and intramural filling defects observed. After surgical resection of the i...
Congenital defects of the pericardium are considered rare. Until 1979 , the reported cases were only about 200.1 Total absence of the left pericardium is the most common defect2 and less common is a partial defect of the left pericardium. Other types, i.e. isolated right-sided defects, total pericardial absence and diaphragmatic pericardial defects are very rare.3 Before the last decade, t...
background: in several conditions we have face cranial bone defects. reconstruction of these defects remains one of the most challenging problems encountered by craniofacial surgeons. objective: to evaluate bone repair in cranial bone defects by use of an implant made of octacalcium phosphate in combination with bone matrix gelatin (ocp/bmg). methods: we used 40, 5–6-week-old male sprague-d...
objective: osseous defects around dental implants are often seen when implants are placed in areas with inadequate alveolar bone, or around failing implants. bone regeneration in these areas using bone grafts or its substitutes may improve dental implants prognosis. the aim of this study was to prepare and characterize the bioactive glass nanopowder and development of its coating for treatment ...
Background and Aim: Intrabony periodontal defects are important problems in periodontology and up to now several ways have been suggested for their treatment .Treatment with enamel matrix derivatives (EMD) has been shown to enhance periodontal regeneration. There is limited information available from clinical trials regarding the performance of EMD in the treatment of periodontal intrabony defe...
evaluation of pulse oximetry in the early detection of cyanotic congenital heart disease in newborns
background: delayed or missed diagnosis of critical and cyanotic congenital heart disease (chd) in asymptomatic newborns may result in significant morbidity and mortality. the aim of this study was to determine the accuracy of pulse oximetry screening performed on the first day of life for the early detection of critical and cyanotic chd in apparently normal newborns. methods: this cross-secti...
abstract background: over the past 20 years, the minimally invasive endoscopic approach has gained widespread acceptance. the study was performed to evaluate the diagnostic method and the success rate of endoscopically diagnosed and treated csf rhinorrhea, and also investigations such as leakage site and etiologic factor. methods: this retrospective csf leakage management review of patients...
Background and Aim: Smoking stimulates adrenergic depletion in circulation and, theoretically, it can increase incidence and prevalence of cardiac conduction defects. In this study we wanted to know if smoking affected cardiac conduction defects in patients with acute inferior myocardial infarction (MI). Materials and Methods: In this cross- sectional study, 40 smokers and 40 non – smokers wit...
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