检索结果-南通市图书馆

The Effects of Smoking on Periodontal Therapy: An Evidence-Based Comprehensive Literature Review

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Open Journal of Stomatology 2014年第3期4卷 143-151页

作者： mahmoud abu-ta’a Department of Oral Surgery & Periodontology Faculty of Dentistry Arab American University West Bank Palestine

The positive relationship between smoking and major general health diseases such as cancer, cardiovascular disease, pulmonary disease and negative pregnancy outcomes is already established. Moreover, the association between smoking as a major environmental risk factor for periodontal disease has also been established. Smoking is considered to have negative adverse effect on periodontal therapy ranging from non-surgical treatment, periodontal surgery, regenerative procedures and implants. This review article will attempt to build on previous studies in the periodontal literature in order to present an evidence-based comprehensive literature review on the effects of smoking on periodontal therapy.

关键词： Smoking Cigarette Smoking Periodontal Therapy Regeneration Implants

Evaluating the Benefits of Platelet Rich-Fibrin in Periodontal Regeneration: A Literature Review

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Open Journal of Stomatology 2023年第3期13卷 106-115页

作者： Hadeel Albahar mahmoud abu-ta’a Department of Dental Sciences Faculty of Graduate Studies Arab American University Ramallah Palestine

Introduction: Platelet Rich-Fibrin (PRF) is a biological matrix derived from a patient’s own blood, rich in growth factors and platelets. Its use in various periodontal and non-periodontal procedures is gaining recognition due to its potential in promoting tissue regeneration. The purpose of this review was to evaluate the benefits of using PRF in intra-bony defect regeneration, guided-bone regeneration, and sinus floor elevation. Methods: The study searched PubMed for manuscripts published between 2017 and 2022 to better understand the clinical and radiological effects of PRF. The manuscripts were divided into the following sections: intra-bony defect regeneration, guided-bone regeneration, and sinus floor elevation. Results: In intra-bony defects, PRF improved clinical and radiological parameters when compared with OFD alone, with a significant difference in wound healing at 7 days. In GBR, a CBCT evaluation shows no statistical difference between the PRF-autogenous bone complex group and the bovine bone-collagen membrane complex regarding volume change of the augmented bone with a 16% rate of bone loss following a 6-month healing period. Also, a slight increase in bone thickness has been seen when liquid PRF is used. In sinus floor elevation, results revealed no differences in graft volume between PRF group and control group at any of the evaluated time points. Although higher implant stability immediately postoperatively, higher new bone formation, the lesser amount of residual graft and earlier implant placement. Conclusion: Platelet Rich-Fibrin is widely accepted for use in periodontal surgery and dentistry due to its minimally invasive nature and low risk of adverse effects, with positive results in tissue regeneration. There is evidence that PRF leads to improved and faster healing, as well as cost-effective regenerative procedures compared to other treatments.

关键词： Intra-Bony Defect Sinus Floor Elevation Platelet-Rich Fibrin Guided Tissue Regeneration

The Role of Leukocyte and Platelet-Rich Fibrin in Enhancing the Healing of Extraction Sockets: An Overview of the Literature

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Open Journal of Stomatology 2023年第3期13卷 97-105页

作者： Yazan Alawneh mahmoud abu-ta’a Department of Dental Sciences Faculty of Graduate Studies Arab American University Ramallah Palestine

Introduction: Leukocyte and platelet-rich fibrin (L-PRF) is an emerging material in dentistry, however, there are controversies surrounding its effectiveness. Despite the amount of literature available, debates regarding its effect continue. This review aims to summarize and clarify the data surrounding the use of L-PRF in promoting the healing of extraction sockets, which may offer a better outcome for future treatments. Purpose: The purpose of this review is to evaluate the current literature on the use of L-PRF in promoting the healing of extraction sockets, and to provide a comprehensive overview of the available evidence. Methods: A comprehensive computer-based search of databases such as PubMed, Medline, and Cochrane Library was conducted. Results: The results of this review suggest that L-PRF has shown promise in promoting early healing of extraction sockets, but the evidence for its effectiveness over a longer period is limited. Conclusion: Although L-PRF has shown promising results in the early healing periods, its effectiveness over a longer healing period cannot be confirmed based on the available data. More clinical trials with standardized protocols and consistent measurement methods are needed to establish the role of L-PRF in enhancing the healing of extraction sockets.

关键词： Leukocyte and Platelet Rich Fibrin Extraction Sockets Hard Tissue Soft Tissue

Laser and Its Application in Periodontology: A Review of Literature

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Open Journal of Stomatology 2022年第10期12卷 305-320页

作者： mahmoud abu-ta’a Rawia Karameh Department of Dental Sciences Faculty of Graduate Studies Arab American University Jenin Palestine

Introduction: The use of lasers is an emerging therapy in periodontology, however, controversies regarding its use. Despite the vast amount of literature that is currently available, debates regarding the use of lasers in periodontal therapy continue. This review aims to summarize and clarify the myths surrounding the use of lasers in periodontal therapy, which may offer new hope for the treatment’s future. Methods: A comprehensive computer-based search was done using various databases like PubMed, Medline, and Cochrane Library. Results: Laser therapy has influenced periodontal treatment in many aspects. The advantages of laser over conventional instruments were reported, which include pain relief, inflammation reduction, tissue repair acceleration, wound healing, reduction of scar formation, removal of granulation tissue and epithelial lining, and treatment of periodontal pockets. Today, the laser starts to get more people’s attention. However, an evidence-based approach to using lasers in periodontal treatment must be developed. The potential risks associated with lasers should also be considered. There must be careful and strict safety precautions implemented. Conclusion: Although laser therapy has shown promising results in the treatment of periodontal disease, further research is needed before the clinical use of lasers in evidence-based practice. Further long-term studies and clinical studies in human models are needed to generalize laser therapy in periodontology.

关键词： Lasers Periodontal Diseases Low-Level Lasers High-Level Lasers Surgical Non-Surgical Soft Tissue Hard Tissue

Performance Analysis of the Reconfigurable Intelligent Surfaces Communication Systems

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Communications and Information Networks 2024年第2期9卷 184-191页

作者： Omar abu Ella Department of Electrical and Electronic Engineering Misurata University2659 Zawiat AlmahjoubMisurataLibya

Reconfigurable intelligent surfaces (RIS) play a vital role in meeting the growing demand for higher data rates and reliability in wireless systems. This study focuses on analyzing the performance of RIS systems to gain a deeper understanding of their *** paper presents a mathematical analysis of the RIS system,deriving closed-form formulae that express its characteristics including signal-to-noise ratio(SNR)distribution,ergodic and effective capacity,outage,and error probability. The obtained formulae are newly derived and unconditionally valid solutions. Numerical results demonstrate a close agreement between the derived formulae and MonteCarlo simulation outcomes.

关键词： ergodic capacity effective capacity outage probability bit error rate Rayleigh fading channel RISassisted communication system

Bearing capacity of circular footings on multi-layered sand-waste tire shreds reinforced with geogrids

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Rock Mechanics and Geotechnical Engineering 2024年第3期16卷 1085-1094页

作者： mahmoud Ghazavi Ehsan Khosroshahi Faculty of Civil Engineering K.N.Toosi University of TechnologyTehranIran

The presence of waste tires poses an environmental challenge as they occupy a significant amount of land and are expensive to dispose in ***,reusing waste tires can address this issue when waste tires are used in geotechnical *** determine the viability of this approach,laboratoryscale tests were conducted to investigate load-bearing capacity of circular footings on sand-tire shred(STS)mixtures with shredded waste tire contents of 5%e15%by weight and three different widths of *** investigation focused on analyzing the thickness of layers composed of STS mixtures,the soil cap,and the impact of geogrids on bearing *** results indicate that a specific mixture of sand and tire shreds provides the highest footing-bearing *** addition,the optimal shred content and size were found to be 10%by weight and 2 cm×10 cm,***,for a given tire shred width,a particular length provides the largest bearing *** results agree well with that of previous research conducted by the first author and his colleagues in direct shear and California bearing ratio(CBR)*** primary finding of this research is that the use of two-layered STS mixtures reinforced by geogrids significantly enhances the bearing capacity.

关键词： Geogrid Sand Waste tire shred Bearing capacity Waste tire shred optimization Tire shred aspect ratio

Source localization based on field signatures:Laboratory ultrasonic validation

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Electronic Science and Technology 2024年第3期22卷 47-56页

作者： mahmoud Eissa Dmitry Sukhanov Department of Radiophysics Tomsk State UniversityTomsk634050Russia Higher Institute for Applied Sciences and Technology(HIAST) Damascus31983Syria

Location awareness in wireless networks is essential for emergency services,navigation,gaming,and many other *** article presents a method for source localization based on measuring the amplitude-phase distribution of the field at the base *** existing scatterers in the target area create unique scattered field interference at each source *** unique field interference at each source location results in a unique field signature at the base station which is used for source *** the proposed method,the target area is divided into a grid with a step of less than half the *** grid node is characterized by its field signature at the base *** signatures corresponding to all nodes are normalized and stored in the base station as fingerprints for source *** normalization of the field signatures avoids the need for time synchronization between the base station and the *** a source transmits signals,the generated field signature at the base station is normalized and then correlated with the stored *** maximum correlation value is given by the node to which the source is the *** simulations and results of experiments on ultrasonic waves in the air show that the ultrasonic source is correctly localized using broadband field signatures with one base station and without time *** proposed method is potentially applicable for indoor localization and navigation of mobile robots.

关键词： Base station Field signature Fingerprints Localization Ultrasonic frequencies

Laser and Its Application in Periodontology: A Review of Literature

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Evaluating the Benefits of Platelet Rich-Fibrin in Periodontal Regeneration:A Literature Review

Open Journal of Stomatology（口腔学期刊） 2022年第10期

作者： mahmoud abu-ta’a rawia karameh

来源：博看期刊评论

在线全文

博看期刊

学校读者我要写书评

暂无评论