1,721,033 research outputs found
Registration of patient-relevant references in edentulous jaws using intraoral scanners: simplification of the clinical procedure
No full textWith the advancement of computer-aided design/computer-aided manufacturing (CAD/CAM) in dentistry, the use of digital technologies is being increasingly adopted by clinicians and laboratory technicians. Clinicians are using intraoral scanners (IOSs) more and more to perform computer-aided impressions. While these are mainly used to digitize dentate or partially edentulous jaws, it is feasible with a few of the available systems to scan edentulous jaws, with or without implants. To scan edentulous jaws, the registration and articulation of patient-relevant references and planes is difficult without the use of physical casts. The present article introduces simple yet effective methods to integrate individual interocclusal information during the intraoral scan procedure. The techniques described aim to simplify the digital registration procedure of edentulous jaws, with or without implants, and integrate patient-relevant information in the virtual articulator without the need to manufacture and articulate casts after the intraoral scan
Artificial intelligence in dentistry: Current applications and future perspectives
No full textArtificial intelligence (Al) encompasses a broad spectrum of emerging technologies that continue to influence daily life.The evolution of Al makes the analysis of big data possible, which provides reliable information and improves the decision-making process. This article introduces the principles of Al and reviews the development of Al and how it is currently being used. Al technology has influenced the health care field because of the need for accurate diagnosis and superior patient care. In order to understand the trend of Al in dentistry, electronic searching was carried out, combined with approaching individual companies to obtain the details of Al-based services. The current applications of Al in clinical dentistry were introduced and summarized. In the future, the Al-based comprehensive care system is expected to establish high-quality patient care and innovative research and development, facilitating advanced decision support tools. The authors believe that an innovative in-ter-professional coordination among clinicians, researchers, and engineers will be the key to Al development in the field of dentistry. Despite the potential misinterpretations and the concern of patient privacy, Al will continue to connect with dentistry from a comprehensive perspective due to the need for precise treatment procedures and instant information exchange. Moreover, such developments will enable professionals to share health-related big data and deliver insights that improve patient care through hospitals, providers, researchers, and patients
Complete digital workflow in prosthesis prototype fabrication for complete-arch implant rehabilitation: A technique
No full textDuring complete-arch digital implant scanning, one of the most technique-sensitive steps is the data registration and superimposition or matching of different surface geometry data sets because of the absence of fixed landmarks. This article describes a straightforward technique for facilitating the accurate superimposition or matching of surface scan files from digital scans for the fabrication of the prosthesis prototype with a complete digital workflow
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Changes of Quality of Life and Its Related Factors In Patients Receiving Cataract Surgery
No full text白內障 (Cataract) 是隨著老化過程所產生的眼科疾病之一，其主要治療方式為手術，本研究之目的為探討白內障病患接受手術治療前後的視覺相關生活品質探討、病患焦慮及憂鬱與疲憊之相關性。研究採橫斷性描述相關性設計，以立意取樣 (purposive sampling) 使用結構式問卷進行資料收集，包括：「視覺功能生活品質量表」、「SF-12一般生活品質量表」、「醫院焦慮及憂鬱量表」、「簡易疲憊中文量表疲憊程度」、「基本資料表」，收案場所於台北某醫學中心之眼科病房及眼科門診，於97年5月至97年10月共收案78人，研究結果顯示一般生活品質、視覺功能生活品質、焦慮、憂鬱及疲憊於白內障手術後皆有顯著差異 (p<0.01)；在視覺品質次項目中，與一般生理生活品質 (PCS) 相關的為心理健康、依賴、遠距離視力、整體健康、整體視力、角色限制 (p<0.01)；與一般心理生活品質 (MCS) 相關的為心理健康、整體視力、依賴、整體健康 (p<0.01)；接受手術後視覺生活品質的改變，與手術後焦慮、憂鬱及疲憊的改變呈正相關 (p<0.01)；本研究有助於臨床護理人員對於白內障手術前後生活品質改變、情緒症狀監測（焦慮憂鬱）及疲憊相關問題更深入瞭解，並早期提供病患諮詢與衛教，可提供學術及臨床照護上具體參考依據。Cataract is one of the most common age-related ophthalmic diseases. The main treatment is surgery. The purposes of this study were to examine the changes of visual quality of life (QOL) and its relationship with the changes of general quality of life (physical and psychological function), depression, anxiety and fatigue status in cataract patients before and after surgery. A cross-sectional correlational study was applied to recruit subjects from a medical center in Northern Taiwan. We used a set of questionnaires: National Eye Institute Visual Functioning Questionnaire (NEI VFQ- 25), the Short-Form Health Survey (SF-12), the Hospital Anxiety and Depression Scale (HADS), the Brief Fatigue Inventory (BFI) and the general information, to assess variables listed in this study. A total of 78 subjects were recruited by purposive sampling. The results show a significant improvement in the general QOL, visual functioning QOL and a reduction in the degree of anxiety, depression and fatigue after the surgery (p<0.01). Within the subcategories of visual quality (NEI VFQ-25), general health, general vision, role limitation, distance vision, mental health, and dependency are associated with the Physical Component Summary (PCS) (p<0.01). In addition, general health, general vision, mental health and dependency are associated with the Mental Component Summary (MCS) (p<0.01). The change of the visual function before and after surgery are positively correlated with the changes of that of levels of anxiety, depression and fatigue (p<0.01). In conclusion, patients with cataract surgery have major improvement in their vision, visual related QOL and the general QOL. It also has positive improvement in fatigue, depression and anxiety.口試委員會審定書 i謝 ii文摘要 iii文摘要 iv錄 v表目錄 vii一章 緒論 1一節 研究動機與重要性 1二節 研究目的 4二章 文獻查證 5一節 白內障及其治療 5二節 視覺功能生活品質與一般生活品質相關研究 7三節 視覺功能與焦慮憂鬱相關研究 10三章 研究方法 14一節 研究設計 14二節 研究場所及對象 14三節 研究假設 15四節 名詞解釋及操作型定義 16五節 研究工具 17六節 資料收集 22七節 資料處理與分析 23八節 研究倫理考量 24四章 研究結果 25一節 白內障病患之基本資料分析 25二節 視覺功能生活品質得分及其相關因素 27三節 白內障患者一般生活品質得分情形及程度 33四節 白內障患者手術前後焦慮得分情形及程度 37五節 白內障患者手術前後憂鬱得分情形及程度 38六節 白內障患者手術前後疲憊得分情形及程度 39七節 視力與視覺生活品質、焦慮、憂鬱、疲憊及兩大整體相關性 41八節 視覺生活品質改變與焦慮、憂鬱、疲憊及兩大整體相關性 43五章 討 論 47一節 影響白內障病患手術前後的視覺生活品質因素 47二節 影響白內障病患手術前後一般生活品質因素 49三節 影響白內障患者手術前後焦慮、憂鬱、疲憊因素 50六章 結論與建議 45一節 結論 52二節 研究限制與建議 53三節 護理上應用 54考資料 55文部份 55文部分 56表目錄 一 研究架構圖…………………………………………………….……..…..13 一 白內障病患基本屬性分析…………………………………….................26 二 手術前後視覺功能相關生活品質得分分析 ……………………..….....32 三 手術前後一般生活品質八大向度與兩大整體得分分析 ………….......36 四 白內障手術前後焦慮改變之分析…………………..…………………...37 五 白內障手術前後憂鬱改變之分析………………..….…………………..38 六 白內障手術前後疲憊程度得分分析………………………....………….40 七 視力與視覺功能生活品質、疲憊、焦慮、憂鬱、兩大整體生活品質相關性………………………...………………………………..…...............42 八 視覺功能改變量與整體生理、心理、焦慮、憂鬱、疲憊改變量之相關性………………………………………………………………………….45 九 整體生理、心理改變量與焦慮、憂鬱、疲憊改變量之相關性 ………………………………………………………………………...4
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Use of a sequential two-in-one free arterialised venous flap for the simultaneous reconstruction of two separate defects on the foot
No full textA sequential free arterialised venous flap carrying two flaps nourished by a
single venous pedicle was designed for the simultaneous reconstruction of two
separate soft tissue defects on the dorso-medial aspect of the foot. These two defects
were separated by approximately 3.5 cm, exposing the extensor hallucis longus tendon
and first tarso-metatarsal joint. Superficial epidermolysis was noted postoperatively in
the smaller flap. Nonetheless, flap survival was uneventful with no further surgery
required, and the patient was discharged 7 days after surgery. Three months after the
surgery, the patient was satisfied with the result and no morbidity was evident at the
donor site. The sequential flap is not a new flap category, but we are unaware of any
previous report of a free arterialised venous flap in the form of a sequential flap. We
demonstrate the clinical value of this type of flap design for selected cases. The
benefits and possible pitfalls of the sequential free arterialised venous flap are
discussed
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