• Journal of Dental Anesthesia and Pain Medicine
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• 제21권5호
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• pp.397-411
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• 2021

This systematic review aimed to assess the effect of premedication on postoperative pain after root canal treatment in vital teeth. Five electronic databases were searched for randomized clinical trials, and two independent reviewers selected eligible studies, extracted data, and assessed the quality of studies using the Cochrane Risk of Bias tool. Meta-analysis was conducted using the random-effects model, and the pooled effect estimate of the standardized mean difference (SMD) between premedication and placebo was calculated. Subgroup analysis was conducted based on the class and route of the drug. Studies with a high risk of bias were excluded from the sensitivity analysis. Ten trials satisfied the inclusion criteria, of which eight were included in the meta-analysis. Premedication was more effective in reducing postoperative pain than placebo at 6 hours (SMD = -1.00; 95% confidence interval [CI] = -1.33 to -0.66), 12 hours (SMD = -0.80; 95% CI = -1.05 to -0.56), and 24 hours (SMD = -0.72; 95% CI = -1.02 to -0.43). The results of the sensitivity analysis confirmed the findings of the primary analysis. Based on these results, it can be concluded that premedication is effective in reducing postoperative pain in teeth with irreversible pulpitis. However, additional quality studies are required for further validation.

• 한국태양에너지학회 논문집
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• 제22권4호
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• pp.97-106
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• 2002

The purpose of this study is to analyze the life cycle cost of primary cooling system by systematic support cost. Life Cycle Cost(LCC) is the process of making an economic assessment of an item, area, system, or facility by considering all significant costs of ownership over an economic life, expressed in terms of equivalent costs. The essence of life cycle costing is the analysis of equivalent costs of various alternative proposals. In order to select economical primary cooling system in early heat source plan stages, the research investigates cost items and cost characteristics during project process phases such as planning/design, construction, maintenance /management, and demolition/sell phases. The study also analyze the life cycle cost by capacity leading to suggest the most economical primary cooling system by systematic support cost.

• The Journal of Asian Finance, Economics and Business
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• 제10권2호
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• pp.355-365
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• 2023

This study examined the relationship between corporate governance and risk disclosure via a systematic literature review and bibliometric visualization analysis. The study aimed to present evidence of risk disclosure intellectual structure, volume, and development knowledge trends. Data was extracted from Scopus and analyzed with Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines and RTools. In turn, 64 articles were extracted from the Scopus database. The results demonstrated that the number of corporate governance and risk disclosure publications increased significantly from 2015 to 2019 compared to before 2015. RTools revealed the most prominent journals, authors, and interests in the field. The co-occurrences map was constructed based on 208 keywords from 64 articles, where the keywords were required to appear once in the research. Interestingly, the keyword search yielded new concepts relatively unexplored in the risk disclosure field. The 13 clusters were generated, which contained 1987 total links and 1567 direct citations. Based on the scientific analysis discussion, corporate governance and risk disclosure is an interesting topic that has produced many publications. Applying research keywords arguably aided in producing and publishing papers in top journals. Despite the number of publications decreasing due to the COVID-19 pandemic, the pandemic also presented new opportunities for future research.

• 척추신경추나의학회지
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• 제14권2호
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• pp.1-14
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• 2019

Objectives : To evaluate the effectiveness of Chuna Manual Therapy for adhesive capsulitis by a systematic review manner. Methods : Five foreign electronic databases (Pubmed, Ovid-medline, Embase, Cochrane library, Chinese Academic Journals (CAJ)) and two Korean medical electronic databases (Oriental Medicine Advanced Searching Integrated System (OASIS) and Research Information Sharing Service (RISS)) were searched to find all randomized controlled trials (RCTs) using Chuna Manual Therapy as a treatment for adhesive capsulitis. The methodological quality of each RCT was assessed using the Cochrane risk of bias tool. Results : Twenty-one RCTs met our inclusion criteria. The meta-analysis showed positive results on the use of Chuna Manual Therapy combined with acupuncture or exercise therapy in terms of the efficacy rate and pain using the Visual Analogue Scale (VAS), compared to acupuncture or exercise alone [SMD-1.81 (95% CI & -2.54, -1.08), P<0.001, RR 1.19 (95% CI 1.14, 1.23), P<0.001)]. Positive results in terms of efficacy rate were also obtained comparing Chuna Manual Therapy to acupuncture alone [RR 1.10 (95% CI 1.02, 1.18), P=0.01]. Conclusions : Our systematic review found favorable results on the effectiveness of Chuna Manual Therapy for pain and efficacy rate of adhesive capsulitis. However, evidence was limited due to the lack of well-designed RCTs. More qualified clinical trials are needed to obtain stronger evidence.

• 융합정보논문지
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• 제11권9호
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• pp.191-200
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• 2021

본 연구는 치위생(학)과 대학생의 임상실습 스트레스에 대한 선행연구의 결과를 체계적으로 수집, 분석하여 임상실습 스트레스의 측정도구와 관련요인에 대한 분석을 실시하였다. PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-analysis)의 체계적 문헌고찰 가이드라인에 의거하여 수행되었으며 최종분석에 사용된 문헌은 24편이었다. 임상실습 스트레스를 측정하기 위하여 사용된 측정도구는 4개였다. 문헌 분석결과 만족도가 낮을수록 임상실습 스트레스가 높은 것으로 나타났고, 대인관계, 역할 및 활동, 이상과 가치의 요인이 스트레스에 유의한 영향을 미치는 것으로 나타났다. 본 연구에서는 임상실습 스트레스와 다양한 변수들 간의 상관관계 및 영향요인에 국한되어 분석하였기에 향후 본 연구 결과를 기초로 하여 치위생(학)과 대학생의 임상실습 스트레스에 관하여 다면적인 연구들이 활발하게 진행되길 기대한다.

• 융합정보논문지
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• 제9권1호
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• pp.123-135
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• 2019

본 연구는 치과위생사의 직무만족에 대한 선행연구 결과를 체계적으로 수집, 분석하여 직무만족 측정도구와 관련요인에 대한 분석을 실시하였다. PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-analysis)의 체계적 문헌고찰 가이드라인에 의거하여 수행되었으며 최종 분석에 사용된 문헌은 44편이었다. 직무만족을 측정하기 위하여 사용된 측정도구는 모두 10개이다. 모두 국외에서 개발된 것이며 수정하여 사용되었다. 문헌 분석 결과 직무만족이 높을수록 이직의도, 직무스트레스에 음의 상관관계이며, 조직몰입, 전문직업성에서는 양의 상관관계가 나타났다. 본 연구에서는 직무만족과 다양한 변인 간의 상관관계 및 영향 요인에 국한되어 분석하였으며 향후 본 연구 결과를 기초로 하여 치과위생사의 직무만족 향상에 대한 연구가 활발히 진행되길 기대한다.

• Journal of Periodontal and Implant Science
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• 제52권6호
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• pp.479-495
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• 2022

Purpose: Rodent models have emerged as an alternative to established larger animal models for peri-implantitis research. However, the construct validity of rodent models is controversial due to a lack of consensus regarding their histological, morphological, and biochemical characteristics. This systematic review sought to validate rodent models by characterizing their morphological changes, particularly marginal bone loss (MBL), a hallmark of peri-implantitis. Methods: This review was conducted following the Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) guidelines. A literature search was performed electronically using MEDLINE (PubMed), and Embase, identifying pre-clinical studies reporting MBL after experimental peri-implantitis induction in rodents. Each study's risk of bias was assessed using the Systematic Review Center for Laboratory animal Experimentation (SYRCLE) risk of bias tool. A meta-analysis was performed for the difference in MBL, comparing healthy implants to those with experimental peri-implantitis. Results: Of the 1,014 unique records retrieved, 23 studies that met the eligibility criteria were included. Peri-implantitis was induced using 4 methods: ligatures, lipopolysaccharide, microbial infection, and titanium particles. Studies presented high to unclear risks of bias. During the osseointegration phase, 11.6% and 6.4%-11.3% of implants inserted in mice and rats, respectively, had failed to osseointegrate. Twelve studies were included in the meta-analysis of the linear MBL measured using micro-computed tomography. Following experimental peri-implantitis, the MBL was estimated to be 0.25 mm (95% confidence interval [CI], 0.14-0.36 mm) in mice and 0.26 mm (95% CI, 0.19-0.34 mm) in rats. The resulting peri-implant MBL was circumferential, consisting of supra- and infrabony components. Conclusions: Experimental peri-implantitis in rodent models results in circumferential MBL, with morphology consistent with the clinical presentation of peri-implantitis. While rodent models are promising, there is still a need to further characterize their healing potentials, standardize experiment protocols, and improve the reporting of results and methodology.

• Journal of Dental Anesthesia and Pain Medicine
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• 제20권6호
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• pp.357-365
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• 2020

Background: To evaluate the effectiveness of vibration as a counter-stimulatory measure in reducing subjective pain due to local anesthesia administration in children. Methods: Electronic databases (PubMed, Ovid SP, Cochrane Central Register of Controlled Trials) were searched until April 2020. Studies were screened by titles and abstracts, followed by full text evaluation of the included studies. Results: A total of seven studies involving 376 children aged 5-17 years were included in the systematic review and meta-analysis. The meta-analysis compared vibration as a counter-stimulatory measure with no vibration as a comparator. The primary outcome evaluated was pain perception or subjective pain reported by the child. The secondary outcome evaluated was objective pain evaluated in each study. The pooled mean difference favored vibration to be effective for the first outcome. Conclusion: Within the limits of this systematic review, low quality evidence suggests that vibration as a counter-stimulatory measure is effective in reducing the subjective pain reported by children during local anesthesia administration.

• 산업공학
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• 제15권2호
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• pp.114-125
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• 2002

The objective of this paper is to describe a systematic accident scenario analysis method(SASA) adept at creating accident scenarios for the design of safer products. This approach was inspired by the Quality Function Deployment(QFD) method, which is conventionally used in quality management. In this study, the QFD provides a formal and systematic scheme to devise accident scenarios while maintaining objectivity. SASA consists of three key stages to be broken down into a series of consecutive steps:(1) developing an accident analysis tableau,(2) devising the accident scenarios using the accident analysis tableau,(3) performing a feasibility test, a clustering process and a patterning process, and finally(4) performing quantitative evaluation of each accident scenario. The SASA was applied to a case study of child safety seats. The accident analysis tableau devised 2828(maximum) accident scenarios from all possible relationships between the hazard factors and situation characteristics. Among them, 270 scenarios were devised through the feasibility test and the clustering process. The patterning process reduced them to 29 patterns representative of all accident scenarios. Based on an intensive analysis of the accident patterns, design guidelines for a safer child safety seat were recommended. The implications of the study on the child safety seat case were then discussed.

• 한국실내디자인학회논문집
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• 제20권1호
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• pp.51-60
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• 2011

Analysis of trend by various information is systematically approached by strategy differentiating in Interior Design. At the present, trend is approached by intuitive viewpoint without systematic strategy and analysis system about interior coordination activity. And, it is not still established specific systematic architecture of the interior coordination by logical and academical approach. This Study set the goal at overall understanding about the Trend that shifting fast and offering objective data. Therefore, I approached the semiology-oriented process as the most suitable academical system on analysis of interior coordination trend. Object target of analysis was investigated to three domestic and overseas exhibitions announced from 2007 to 2008. These analysis was based on the context and text from the life style and the major determinant theme of the age of each exhibition. Also, it was arranged color, material and texture by the related expression system with topics and theme keywords. And it'll be considered as utilizing the code of specific application in interior coordination which is from the investigating about exhibition. Therefore, this study will be expected to help in meaning transmission and methodology establishment by more beneficial objective system, when designer work the interior coordination practically through the establishment of systematic viewpoint about interior coordination.