Conhecimento, prática e opinião de odontolegistas sobre a marcação identificadora de próteses dentárias / Knowledge, practice and opinion of forensic dentists on denture marking

Introdução: A marcação ou identificação de próteses dentárias é feita através da incorporação de etiquetas metálicas, não metálicas ou outras no material da prótese, ou ainda pela marcação da superfície. Apesar de ser recomendada por organizações governamentais e forenses, ela não é amplamente empregada no Brasil. Objetivo: Analisar o nível de conhecimento e descrever a opinião e experiência de odontolegistas brasileiros com a marcação protética. Material e métodos: Foi aplicado um questionário semiaberto a odontolegistas sobre o conhecimento, opinião e prática com a identificação protética. A análise estatística foi feita no software Microsoft Excel. Resultados: Foram obtidas respostas de 43 especialistas das cinco regiões do Brasil. 76% afirmaram conhecer o termo, mas apenas 14% relataram possuir experiência prática e 95% julga ser importante. Dos que já realizaram a prática e a descreveram, todos a utilizaram em situações forenses com cadáveres. Os maiores obstáculos apontados para a implementação foram a falta de conhecimento, a falta de diretrizes oficiais e o custo. Sobre a necessidade de implementar a marcação na prática clínica, 77% responderam que é necessária em todos os casos, mas com relação à obrigatoriedade de implementá-la, 56% declararam que deve ser recomendada, mas não obrigatória e 39%, que deve ser obrigatória. Conclusão: O conhecimento dos odontolegistas sobre a marcação de próteses é considerável e a maioria julga importante, no entanto, poucos tiveram contato com a prática e nenhum a realiza na clínica. Evidencia-se a necessidade da elaboração de diretrizes ou recomendações por entidades odontológicas, ressaltando a importância sócio-legal da prática

Introduction: Denture marking or identification is done through the incorporation of metallic, non-metallic or other labels in the material of the prosthesis, or by marking the surface. Despite being recommended by governmental and forensic organizations, it is not widely used in Brazil. Objective: To analyze the level of knowledge and describe the opinion and experience of Brazilian forensic dentists with denture marking. Material and methods: A semi-open questionnaire about the knowledge, opinion and practice with denture identification was applied to forensic dentists. Statistical analysis was performed using Microsoft Excel software. Results: Responses were obtained from 43 experts from the five regions of Brazil. 76% said they knew the term, but only 14% reported having practical experience and 95% thought it was important. Of those who have performed the practice and described it, all of them used it in forensic situations with corpses. The biggest obstacles pointed out to the implementation of the practice were the lack of knowledge, the lack of official guidelines and the cost. Regarding the need to implement marking in clinical practice, 77% answered that it is necessary in all cases, but regarding the obligation to implement it, 56% declared that it should be recommended, but not mandatory and 39%, that it should be mandatory. Conclusion: The knowledge of forensic dentists about denture marking is considerable and most consider it important, however, few had contact with the practice and none performs it in the clinic. The need for the elaboration of guidelines or recommendations by dental entities emphasizing the socio-legal importance of the practice is evident

Técnicas de marcação de próteses dentárias: revisão da literatura / Techniques of denture marking: review of literature

Indivíduos edêntulos representam um desafio na identificação humana, por isso, em 1931, a marcação identificadora de próteses dentárias foi proposta pela primeira vez, e várias técnicas e materiais têm sido testados ao longo dos anos. A marcação ou identificação de próteses é feita através da incorporação de materiais metálicos, não metálicos, microchips ou outros que são introduzidos no material da prótese removível, ou, ainda, pela marcação da superfície. O presente estudo teve como objetivo descrever as técnicas de marcação protética através de uma revisão narrativa da literatura com busca sistemática realizada nas bases de dados PubMed, Google Acadêmico e SciELO, além de uma busca manual nas referências dos trabalhos selecionados. É responsabilidade ética e legal do cirurgião-dentista auxiliar em investigações de identificação humana, assim, dado o amplo uso de próteses no Brasil, o valor de uma identificação, a relevância e comprovada eficiência em situações forenses, a marcação de próteses deve ser oferecida como opção a todos os pacientes

Edentulous people are a challenge in human identification, therefore in 1931, denture identification marking was proposed for the first time, and several techniques and materials have been tested over the years. The marking or identification of dentures is done through the incorporation of metallic, non-metallic materials, microchips or others that are introduced into the material of the removable prosthesis, or by marking the surface. The present study aimed to describe the techniques of denture marking in a narrative review of the literature with a systematic search using the databases PubMed, Google Scholar and SciELO, and also a manual search of the references of the selected works. It is the dentists ethical and legal responsibility to assist in investigations of human identification, so, given the wide use of dental prostheses in Brazil, the value of an identification, the relevance and proven efficiency of denture marking in forensic situations, the practice must be offered as an option for all patients

Comparison of Toric IOL alignment marking using Verion image guided system and conventional manual marker / 国际眼科杂志(Guoji Yanke Zazhi)

@#AIM:To compare the accuracy of Toric intraocular lens(IOL)alignment using the Verion image guided system and conventional manual marker. <p>METHODS:Prospective randomized controlled study. A total of 56 eyes of 47 age-related cataract patients who underwent phacoemulsification combined with Toric IOL implantation in our hospital from June 2016 to December 2019 were randomly divided into two groups:In the image-guided group, Verion navigation system collected anterior segmental images before surgery, and Toric target was set to 27 eyes in axial direction. In the marker group, Toric target was marked at 0° and 180° levels before surgery, and Toric target was marked in 29 eyes in axial direction according to the labeling ring. At 1h, 1wk, 1 and 3mo postoperatively, the anterior segment of patients with dilated pupil was photographed. Photoshop software was used to analyze the deviation between the actual axial direction and the target axial direction of the two groups, and the patients' naked eye visual acuity(UCDVA), best corrected visual acuity(BCDVA)and residual astigmatism were recorded. <p>RESULTS: At 1h and 3mo postoperatively, the deviation between the actual axis and the target axis of IOL in the navigation group was less than that in the marker group(1.5°±1.8° <i>vs</i> 3.1°±2.1°; 1.9°±1.6° <i>vs</i> 3.3°±2.4°, all <i>P</i><0.05). There was no difference in UCDVA(LogMAR)between the navigation group and the marker group(0.04±0.08 <i>vs</i> 0.06±0.07, <i>P</i>=0.338)and there was no difference in residual divergence(-0.39±0.32 <i>vs</i> -0.45±0.31D, <i>P</i>=0.491)between two groups at 3mo after operation.<p>CONCLUSION:Verion digital marking and manual marking showed high accuracy in marking Toric IOL axial direction. Although the navigation group showed no advantage in UCDVA and residual astigmatism, the IOL misalignment in navigation group was significantly smaller than the marker group, and Toric IOL axial direction was implanted more accurately under Verion digital marking.

Establishment and evaluation of artificial intelligence image marking method for magnetically controlled capsule gastroscopy / 中华消化杂志

Objective:To explore the marking method for magnetically controlled capsule gastroscopy (MCCG) pictures with artificial intelligence (AI), so as to improve the work efficiency of endoscopist and to reduce the blind area of AI image reading.Methods:According to the consensus of MCCG, 24 parts of stomach in 14 775 pictures of MCCG from 35 subjects in Shenzhen Zifu Medical Technology Co., Ltd received MCCG from March to August, 2020 were marked by ten gastroenterologists and one developer of MCCG with medical background, the marking shape included rectangles and polygons. Among the ten gastroenterologists, three were senior endoscopist (the total number of gastroenteroscopy operations over 80 000, chief physician or associate chief physician), four were medium seniority endoscopist (the total number of gastroenteroscopy operations between 10 000 and 80 000, associate chief physician), and three were junior endoscopist (the total number of gastroenteroscopy operations less than 10 000, attending physician). The pictures of the same subject were pre-marked by two selected senior endoscopists with blind method, and the standard of marking with most appropriate coincidence rate was determined. The qualified marked pictures were automatically learn with AI deep learning method, and the learning results were fed back. Chi square test was used for statistical analysis.Results:According to the pre-marked results, the standard of coincidence rate for rectangular marking area was set as 50.0% and that for polygon marking area was 70.0%. The first correction for qualified rate was 39.0% (5 762/14 775). A total of 9 013 pictures were corrected. After repeated training and correction for one to five times, all pictures were qualified marked. The marking qualified rate of senior endoscopist partners was higher than that of partners of different qualifications (48.7%, 1 200/2 466 vs. 19.0%, 825/4 337), and the difference was statistically significant ( χ2=659.20, P<0.001). There was no statistically significant difference in the marking qualified rate between the senior endoscopist partners and partners of senior endoscopist and capsule developer (48.7%, 1 200/2 466 vs. 49.6%, 1 496/3 019; P>0.05). Conclusions:Establishment of AI marking method for MCCG can provide technical support for AI non-blind area reading, and AI non-blind area monitoring during the operation of MCCG.

Iris-registration capsulotomy marking for the implantation of Toric intraocular lens / 国际眼科杂志(Guoji Yanke Zazhi)

@#AIM: To compare the accuracy of Toric intraocular lens(IOL)alignment and visual outcome using the femtosecond laser-assisted capsulotomy markings(FLACM)versus a conventional slitlamp-assisted manual marking(SAMM)procedure. <p>METHODS: Totally 50 patients required cataract surgery and Toric IOL implantation were assigned to the FLACM group(25 eyes)or the SAMM group(25 eyes). The uncorrected distant visual acuity(UCDVA), best corrected distant visual acuity(BCDVA), residual astigmatism(RA), IOL rotation, MTF Total were measured 1mo after surgery. <p>RESULTS: The UCDVA(LogMAR)was significantly lower in the FLACM group than in the SAMM group 1mo postoperatively(0.15±0.09 <i>vs</i> 0.22±0.11, <i>P</i><0.05). The RA and IOL rotation were significantly lower in the FLACM group than in the SAMM group(0.30±0.18D <i>vs</i> 0.64±0.28D, <i>P</i><0.05; 3.64°±1.68° <i>vs</i> 5.40°±3.44°, <i>P</i><0.05). There was no statistical difference between the two groups in the BCDVA and MTF total value(<i>P</i>>0.05). The UCDVA(LogMAR)was positive correlative to the RA(<i>r</i>=0.350, <i>P</i><0.05)and IOL rotation(<i>r</i>=0.369,<i> P</i><0.05), and was negative correlative to the MTF total value(<i>r</i>= -0.290, <i>P</i><0.05); the RA was positive correlative to the IOL rotation(<i>r</i>=0.431, <i>P</i><0.05). <p>CONCLUSION: The accuracy of the axis alignment was significantly higher in the FLACM group, which results in lower residual astigmatism and better visual outcome.

Disección axilar dirigida utilizando carbón vegetal como marcador en paciente con cáncer de mama tratada con quimioterapia neoadyuvante. Técnica quirúrgica / Targeted axillary dissection using charcoal as a marker in a patient with breast cancer treated with neoadjuvant chemotherapy. Surgical technique

Describir la técnica quirúrgica de la disección axilar dirigida (DAD) usando carbón vegetal como marcador del ganglio linfático axilar metastásico al momento del diagnóstico conjuntamente con la biopsia del ganglio centinela en paciente con cáncer de mama tratada con quimioterapia neoadyuvante con respuesta completa clínica y ecográficamente, demostrando su seguridad y eficacia. Material y Métodos: Estudio retrospectivo y descriptivo. Paciente con cáncer de mama y ganglio linfático metastásico en axila ipsilateral marcado con carbón vegetal al confirmarse ese diagnóstico y tratada con quimioterapia neoadyuvante con posterior negativización tanto clínica como ecográfica del ganglio linfático metastásico. Se planificó para disección axilar dirigida (extirpación del ganglio marcado con carbón vegetal y biopsia de ganglio centinela) con el fin de demostrar la eficacia del marcador utilizado y su relación o no con el ganglio centinela. Resultados: Se comprobó la identificación certera del ganglio afectado marcado con carbón vegetal el cual no presentó migración del colorante o reacción inflamatoria local coincidiendo además con dos ganglios centinelas todos con respuesta patológica completa. El carbón permaneció 153 días desde su administración hasta la cirugía axilar. Conclusión: Esta experiencia admite el marcaje con carbón vegetal del ganglio axilar metastásico al momento de su diagnóstico como un método seguro, sencillo, económico y accesible en relación a otros métodos de marcaje, además su asociación con la biopsia del ganglio centinela nos permite prescindir de la disección axilar en caso de respuesta patológica completa, sin embargo, es importante resaltar que se necesitan evaluar más casos para obtener conclusiones determinantes(AU)

To describe the surgical technique of targeted axillary dissection using charcoal marking of the metastatic lymph node at the time of diagnosis together with sentinel node biopsy in a breast cancer patient who received neoadjuvant chemotherapy with complete clinical and sonographical response, demonstrating its safety and efficacy. Material and Methods: Retrospective and descriptive study. Patient with breast cancer and metastatic lymph node in the ipsilateral axilla which was marked with charcoal upon confirmation of this diagnosis and treated with neoadjuvant chemotherapy with subsequent clinical and sonographical negativization of the metastatic lymph node. It was planned for targeted axillary dissection (removal of charcoal-marked lymph node and sentinel node biopsy) in order to demonstrate the efficacy of the marker used and its relationship or not with the sentinel node. Results: The correct identification of the affected lymph node marked with charcoal was verified, which did not present dye migration or local inflammatory reaction, also coinciding with two sentinel nodes, all of them with a complete pathological response. The charcoal remained 153 days from its administration until the axillary surgery. Conclusion: This experience supports charcoal marking of the metastatic lymph node at the time of diagnosis as a safe, simple, inexpensive and accessible method in relation to other marking methods, in addition its association with sentinel node biopsy allows us to dispense with axillary dissection in case of complete pathological response, however it is important to highlight that more cases need to be evaluated to obtain decisive conclusions(AU)

Evaluation of Scheimpflug imaging system as an added tool in improving the accuracy of reference marking (as compared to the slit lamp marking system) for toric intraocular lens implantation

Purpose: To assess the role of Scheimpflug imaging in improving the accuracy of reference marking for toric IOL implantation. Methods: In this prospective, randomized, clinical trial all patients with cataract and pre-existing significant regular corneal astigmatism, who required implantation of a toric IOL were included in the study, and patients with any ocular pathology or abnormality were excluded. Patients were divided into two groups: For one group of patients, Group I (GI), reference marking was finalized using slit lamp only, and for the second group, Group II (GII), after slit lamp marking, the reference marks were checked using Goniometer of Scheimpflug imaging. The primary outcome was to determine the axis of toric intraocular lens (IOL) postoperatively (within 1 hour) and compare it with the desired axis of placement. Results: We found a statistically significant difference in the two groups (P < 0.001) suggesting Group II (4 step technique) is better than Group I (3 step technique). Conclusion: Scheimpflug imaging, an extra step preoperatively, is an effective measure to reduce errors in reference marking and thereby improving the refractive outcome of toric intraocular lens.

Tattooed and non-tattooed women: motivation, social practices and risk behavior / Mulheres tatuadas e não tatuadas: motivações, práticas sociais e comportamento de risco / Mujeres con tatuajes y sin tatuajes: motivaciones, prácticas sociales y comportamiento de riesgo

This study aimed at identifying motivations, risk behavior and social practices, comparing tattooed and non-tattooed women. 316 women (50% tattooed) were surveyed online, answering questions on sociodemographic data, social practices, motivations, and risk behavior. Data collection strategies included snow-balling, social networks, personal contact, and visits to tattoo parlors. The main results indicate that the majority of women express satisfaction with their physical appearance after getting tattooed, and wouldn't get the tattoo removed. Being tattooed correlated with risk behaviors such as casual sex with unknown people, alcohol and drug use, and psychopathology. The sample presented more similarities than differences between tattooed and non-tattooed groups, suggesting that growing popularization and social acceptance of tattooing has led to a decrease of the differences between the groups. Such results may inform future research and the production of informative materials aimed at demystifying negative stereotypes associated to tattoos. (AU)

O objetivo foi identificar as motivações, práticas sociais e comportamento de risco de mulheres tatuadas e não tatuadas. Participaram 316, divididas igualmente entre as categorias. As estratégias de acesso aos participantes foram variadas: técnica de snowball, redes sociais, contato pessoal e idas a estúdios de tatuagem. A coleta de dados ocorreu por meio de um survey on-line, composto por: questões sociodemográficas, práticas sociais, motivações e comportamento de risco. Os principais resultados indicam que a maioria das mulheres apresenta satisfação com sua aparência após realizarem tatuagem e não as removeriam. Houve associação entre ter tatuagem e comportamento sexual de risco, prática sexual com desconhecidos, álcool e outras drogas e psicopatologia. A amostra apresentou mais semelhanças do que diferenças, sugerindo que a popularização e aceitação social da tatuagem têm refletido na diminuição das diferenças entre tatuados e não tatuados. Tais resultados podem permitir a construção de informativos que contribuam na desmistificação de estereótipos negativos frente à tatuagem. (AU)

El objetivo de este estudio fue identificar motivaciones, comportamiento de riesgo y prácticas sociales, entre mujeres con tatuajes y sin tatuajes. Participaron 316 mujeres 50% tatuadas y 50 % no tatuadas. Las estrategias de acceso a los participantes fueron variadas: técnica de snowball-bola de nieve), redes sociales, contacto personal e idas a estudios de tatuaje. La recolección de datos ocurrió a través de un levantamiento online compuesto por preguntas sobre datos sociodemográficos, prácticas sociales, motivaciones y comportamiento de riesgo. Los principales resultados indican que la mayoría de las mujeres expresan satisfacción con su apariencia física después de tatuarse y no se quitarían el tatuaje. Hubo asociación entre tener tatuaje y comportamiento sexual de riesgo, práctica sexual con desconocidos, alcohol y otras drogas y psicopatología. La muestra presenta más semejanzas que diferencias entre los dos grupos, sugiriendo que la popularidad y aceptación social del tatuaje han llevado a la disminución de las diferencias entre los dos grupos. Los resultados pueden permitir la construcción de materiales informativos que contribuyan para la desmitificación de estereotipos negativos frente al tatuaje. (AU)

A precise method of marking pulmonary nodules based on body surface mesh and three-dimensional image reconstruction / 中国胸心血管外科临床杂志

@#Objective    To explore the safety and effectiveness of a precise marking method based on body surface mesh and three-dimensional (3D) image reconstruction. Methods    We retrospectively analyzed the clinical data of 22 patients in our hospital from October 2018 to October 2019. There were 13 males and 9 females aged 58.5 (37-72) years. All patients underwent a precise marking of pulmonary nodules based on body surface mesh and 3D image reconstruction. Then, video-assisted thoracoscopic surgery (VATS) was performed to resect the nodules. The clinical data, including positioning success rate and operation time were analyzed. Results    A total of 22 small pulmonary nodules were removed. The average diameter of small nodules was 12±3 mm, and the average distance from the visceral pleura was 17±6 mm. The localization success rate was 86.4%. The operation time was 110±43 min, and there was no surgery-related complication. Conclusion    The method of marking pulmonary nodules based on body surface mesh and 3D image reconstruction is a safe and reliable technology, which reduces the risk of hemopneumothorax caused by CT-guided lung puncture.

Lessons Learned From Performance Of Students Of Pharmacology In Self Coded Surprise Test With Negative Marking

Introduction: The present study aims to find the effect of instruction of negative marking in a self-coded MCQ examination on the performance of students in the subject of Pharmacology concerning the raw score, correct score and negative score. Methodology: This longitudinal study was conducted in the Department of Pharmacology. The Second MBBS students were exposed to a self-coded MCQ test twice by surprise. The first test (T1) was given without instructions of negative marking, while during the second test (T2) instructions for negative marking were given. The parameters of the raw score, negative score, corrected score and number of students who did not attempt respective MCQs was calculated. The number of students passing with modified Minimum Passing Level was calculated was compared with conventional Minimum Passing Level. Results:Sixty-seven students participated in the study. There was a statistically significant decrease in the raw score in the T2, while an increase in the negative score when compared with T1. The number of non-attempted questions was increased in T2. There was a statistically significant difference in the number of students passed concerning raw score in T1 and T2, while no such difference was seen concerning Negative score and Corrected score. Conclusion:The Corrected score and Negative score are not affected by the minimum passing level, indicating a better parameter of scoring than the raw score. Hence, the use of Negative score or Corrected score should be encouraged rather than the use of conventional Raw score.

Anthropometric Characteristics And Physical Fitness Of Urban And Rural 8-10 Years Old School Girls Of Bahawalpur, Pakistan

Background: The assessment of anthropometric characteristics and physical fitness assist the researcher in comparing the growth and health status of urban and rural school girls. Purpose of this research was to examine anthropometric characteristics and physical fitness of urban and rural school girls of district Bahawalpur, Pakistan. Methods: The participants were government primary schoolgirls (urban = 200), and (rural = 200), within the age of 8-10 years. The selected anthropometric and physical fitness variables were stature, body mass, skinfolds, girths, breadths, lengths, speed, standing broad jump, agility, ball throw, handgrip strength, endurance, and flexibility. A student t-test was applied to assess the difference between urban and rural school girls in their anthropometric and physical fitness measures. Results: Results showed the urban school girl was significantly superior in body mass, iliac-crest skinfold(P< .04), abdominal skinfold(P< .04), waist girth (P< .04), hip girth (P< .01), thigh girth(P< .01), arm length, and hand length. In contrast, the rural school girls were significantly higher in speed(P< .02), agility(P< .02), ball throw (P< .02), flexibility( P< .03), run and walk (P< .04) than the urban school girls. Conclusion: It is concluded the urban school girls were higher in skin folds and girths, indicate high body fats than rural school girls. As a result, urban school girls were lower in fitness capacity than rural because higher body fat reduces fitness performance. It is suggested the parents and school administration focus to provide such activities to improve physical fitness and reduce body fats of urban school girls. The future study focusses on investigating the effects of food intake on the anthropometric characteristics, and physical fitness of urban and rural school children.

Biotechnology method of formation of a land plot for an existing item of immovable property / 国际药学研究杂志

Activities aimed at urban planning and land management are carried out on the basis of documents of territorial planning, rules of land use and development, the Town Planning Code of the Russian Federation, the Land Code of the Russian Federation, the Federal Law "On General Principles of Organization of Local Self-Government in the Russian Federation", and other regulatory legal acts of the Russian Federation. A change of types of permitted use of land plots and capital construction projects by individuals and legal entities and preparation of documentation on territory planning by self-governing authorities are carried out in accordance with the applicable legislation. Planning and cartographic (photogrammetric) materials accumulated in recent years were usually created on the basis of high-precision geodetic measurements, including satellite measurements in coordinate systems used for the State Real Estate Cadastre. These materials have a single coordinate space with uniform accuracy across the entire area, which gives every reason to use them as the most promising data for the State Real Estate Cadastre without extra cost-effective methods. At present, there is a sufficient basis for the transition to the determination of the legal regime of land plots on the basis of documents of territorial zoning, and, accordingly, to the establishment of the value to determine the precise location of the specific points of land plots boundaries based on the location and type of the permitted land use.

Morphometric And Morphological Study On The Septomarginal Trabecula

Background and objectives: Moderator band is a specialized bridge present between the base of the anteriorpapillary muscle and interventricular septum. It carries the right branch of the bundle of HIS with it. The band isknown to prevent the over distension of the right ventricle during the diastolic phase. There is a need of lot ofresearch and studies on the septomarginal trabecula as it proves to be important clinically. Here we measuredthe length, breadth, height, angle with the interventricular septum, and the superficial marking of Moderatorband on the sternocostal surface of the right ventricle is done. This paper describes the morphological variationsfound in its origin and insertion.Materials and Methods: 15 formalin-soaked cadaveric hearts were taken from the Department of Anatomy ofKVG Medical College, Sullia. The foetal hearts, the hearts with gross pathology, if any are excluded from the study.Result: The morphometric parameters are tabulated and the morphological variations are noted. The results arecompared with the results of the previous studies on the moderator band.Conclusion: It is confirmed that the thickness of moderator band varies at its origin and insertion. The surfacemarking of moderator band on sternocostal surface of the heart will help in locating the moderator band throughthe echocardiography and during cardiac surgeries on right ventricle. The possibility of second moderator band,multiple origin or insertion is more than 20%.

Use of QR code as personal identification of complete dentures ­ literature review / Uso do código QR como identificação pessoal de próteses totais - revisão de literatura

Different methods for identification of complete dentures have been described as well as the importance of its use. Recently, the QR code has been highlighted as a simple and effective novelty for this purpose, but its use in daily clinical practice is still poorly reported. The aim of this study was to perform a literature review regarding the use of the QR code in complete dentures as a system of personal identification of denture wearers. An electronic search was performed in the Pubmed database in June 2017. A specific search strategy was developed and executed, considering as inclusion criteria studies published in the last 10 years. After selecting and reading titles and abstracts, 8 studies were included in the final list. The use of the QR code in complete dentures has been described as simple, efficient and capable of storing a considerable amount of information. Some laboratory studies have tested the resistance of the QR code covered by acrylic resin against adverse conditions such as heat, chemicals and fractures, which, in general, confirmed the feasibility of using this identification alternative. It is important to point out the need for dissemination among dentistry students and patients regarding the benefits and legal importance of having a complete denture identification system.

Diferentes métodos de identificação de prótese total têm sido descritos na literatura científica, bem como a importância de sua utilização. O código QR (QR code) tem sido destacado recentemente como uma novidade simples e efetiva para este fim, porém seu uso na prática clínica diária ainda é pouco relatado. O objetivo deste estudo foi realizar uma revisão de literatura a respeito do uso do código QR como sistema de identificação pessoal de usuários de próteses totais. Foi realizada uma busca eletrônica na base Pubmed em junho de 2017. Uma estratégia de busca específica foi elaborada e executada, considerando-se como critério de inclusão estudos publicados nos últimos 10 anos. Após seleção e leitura dos títulos e resumos, 8 estudos foram incluídos na lista final. O uso do código QR em próteses totais é descrito como um método de identificação simples, eficaz e capaz de armazenar uma quantidade considerável de informações. Alguns estudos laboratoriais testaram a resistência do código QR coberto por resina acrílica frente a condições adversas como calor, substâncias químicas e fraturas os quais, em geral, confirmaram a viabilidade de uso desta alternativa de identificação. Ressalta-se a necessidade da divulgação entre estudantes de Odontologia e pacientes a respeito dos benefícios e importância legal em haver um sistema de identificação em próteses totais.

Application of new-type cardio-pulmonary resuscitation marking table in large scale group examination / 中华医学教育探索杂志

Objective To explore the application of new-type cardio-pulmonary resuscitation (CPR) marking table in CPR teaching and assessment of new students.Method The students were divided into five-year group and four-year group based on different cultivation durations;the five-year group received conventional teaching while the four-year group received targeted teachingfocusing on key points on that basis.The assessment of both groups applied this marking table to compare average score,failure rate,full mark rate and error rate of 13 operations in marking table between the two groups.With the help of SPSS 19.0 software,the results were analyzed by t-test and chi-square test.Result The four-year group was higher than five-year group in average score and full mark rate (t=3.118,P=0.002;x2=26.798,P=0.000),but it was lower than five-year group in failure rate (x2=14.159,P=0.000),the difference was statistically significant.The error rate of 9 operations in five-year group,including on-sitesafety assessment (x2=44.764,P=0.000),calling for help (x2=8.854,P=0.003),press part (x2=10.236,P=0.001),press depth (x2=140.775,P=0.000),press interruption＜10 s (x2=7.377,P=0.007),opening airway (x2=20.209,P=0.000),twice effective artificial respiration (x2=37.669,P=0.000),evaluation (x2=20.898,P=0.000) and humanistic care (x2=45.673,P=0.000),were higher than that in four-year group;the difference of error rate of 4 operations between two groups was not statistically significant,including recognizing sudden cardiac arrest (x2=3.316,P=0.069),press frequency (x2=0.234,P=0.629),full resilience (x2=0.18,P=0.671) and press point movement (x2=3.614,P=0.057).Conclusion The new-type CPR marking table objectively reflects students' operation,summarizes operation errors and gives feedback of guidance teaching,so it is applicable for mass assessment with convenient use and less teaching load.

Comparison of Toric intraocular lens axis marking using VERION image guided system and slit lamp observation / 眼科新进展

Objective To evaluate the accuracy and validity of Toric intraocular lens (IOL) alignment by VERION image guided system.Methods In this retrospective study,75 eyes of 75 patients who underwent phacomulsification combined with Toric IOL implantation were enrolled from June 2016 to May 2017.Before operation,anterior segment images of all patients were collected using VERION image guided system,and target axis of IOL implantation was set.Horizontal axis was marked using 1 mL syringe needle under the slit lamp.During the procedures,the IOL was implanted referring to the target axis under VERION system or the slit lamp randomly,and there were 42 eyes with IOL implantation guided by VERION system (VERION group),and 33 eyes guided by slit lamp (slit lamp group).The best corrected visual acuity (BCVA) of each patient was recorded at day 1,1 week,1 month,and 3 months after operation.Anterior segment images were taken after mydriasis,and all the images were analyzed by Photoshop software.Finally,the BCVA at various time points after operation and the deviation value of actual axis and target axis was compared in both groups.Results The proportion of eyes with BCVA ≥ 0.8 at day 1,1 week,1 month,and 3 months after operation was 61.9％,78.6％,71.4％ and 76.2％ in VERION group,respectively,and 69.7％,78.8％,81.8％ and 75.8％ in slit lamp group,respectively,and there was no statistical significance between VERION group and slit lamp group (all P ＞ 0.05).The difference value of target axis marked by VERION system and by slit lamp was (3.04 ± 1.99) °.No significant differences were seen in the IOL actual axis and target axis between the two groups at various time points (all P ＞ 0.05).Conclusion It is accurate and stable of VERION image guided system for toric IOL axis marking.

Application of UDI in Quality Management of Laparoscopic Instruments / 中国医疗器械杂志

Laparoscopic surgical instruments are expensive and have complex structures, the management is always huge challenge for managers. This paper introduces the basic concepts of UDI, Dot Pin Marking engraving in DPM technology and the practical solution to the case of laparoscopic instrument management. This paper summaries the application of UDI in the application of laparoscopic instruments and the prospect of future use.

Projection marking to optimize antegrade femoral intramedullary nailing / 中华创伤骨科杂志

Objective To evaluate the projection marking which was designed to improve the surgical efficiency of antegrade femoral intramedullary nailing for femoral intertrochanteric and shaft fractures.Methods A total of 198 patients (158 femoral intertrochanteric fractures and 40 femoral shaft fractures) were analyzed retrospectively who had been treated at Department of Orthopedics,The First Affiliated Hospital to Wenzhou University from January 2012 to January 2016.They were 61 males and 137 females,aged from 13 to 95 years (mean,65.4 ± 14.6).By AO classification,there were 55 cases of type 31-A1,103 cases of type 31-A2,21 cases of type 32-A2 and 19 cases of type 32-A3.The intertrochanteric fractures which had been treated from January 2012 to May 2013 with no projection marking were assigned into group A1 (n =61) while the shaft fractures which had been treated in the same period with no projection marking into group B1 (n =12);the intertrochanteric fractures which had been treated from May 2013 to January 2016 with projection marking were assigned into group A2 (n =97) while the shaft fractures which had been treated in the same period with projection marking into group B2 (n =28).Comparisons were made between groups A1 and A2,and between groups B1 and B2 in terms of total operative time,total number of fluoroscopy,complications,Harris hip score (HHS),and pain and symptoms scores in Knee Injury and Osteoarthritis Outcome Score (KOOS) 3 months after operation.Results The 198 patients were followed up for 3 to 18 months (average,7.0 months).The total operative time (56.5 ±6.6 min) and the total number of fluoroscopy (26.6 ±6.2 times) in group A2 were significantly less than those in group A1 (59.2 ±9.2 min and 31.4 ±9.9 times) (P ＜ 0.05).The total operative time (84.6 ± 16.1 min) in group B2 was significantly less than that in group B1 (97.8 ± 17.9 min) (P ＜0.05) but the total number of fluoroscopy (49.4 ± 12.7 times) in group B2 was insignificantly less than that in group B1 (50.6 ± 10.1 times) (P ＞ 0.05).Conclusion The self-designed designed method of projection marking can reduce operative time and number of intraoperative fluoroscopy in the antegrade femoral intramedullary nailing for femoral intertrochanteric and shaft fractures.

A study of management on preoperative stoma site marking / 中国实用护理杂志

Objective To cultivate specialist nurses to perform preoperative stoma site marking in patients to receive enterostomy and improve the rate of preoperative stoma site marking and the ability of preoperative stoma site marking in specialist nurses. Methods The rate of preoperative stoma site marking in 148 patients from July 2016 to October 2016 was investigated and the reason of not receiving preoperative stoma site marking was analyzed. Nineteen primary nurses were trained to perform preoperative stoma site marking instead of the traditional pattern which was performed by enterostomy therapist and physician. The training included the criteria of preoperative stoma site marking, difficult preoperative stoma site marking, demonstration, group exercises, theoretical and operational assessment. The preoperative stoma site marking of 156 patients were performed by specialist nurses from November 2016 to February 2017.Then,the rate of preoperative stoma site marking,accuracy of stoma location,and knowledge of preoperative stoma site marking were compared between the traditional and new management pattern. Results The preoperative stoma site marking rate was 91.89%(136/148)and the accuracy rate was 94.12%(127/136)in traditional management pattern.The lack of enterostomy therapist, surgery performed on weekends and emergency surgery were the reasons that preoperative stoma site marking was not performed.After changing the management pattern,the preoperative stoma site marking rate was increased to 98.72%(154/156) and there was a significant difference between them (χ2=8.06, P <0.05).The accuracy of localization was decreased to 92.86%(143/154),but there was no significant difference between them(χ2=0.03,P>0.05).The rate of acquiring preoperative stoma site marking knowledge in nurses was increased from 8/19 to 18/19 with a significant difference(χ2=12.18,P<0.01). Conclusions The pattern of preoperative stoma site marking was changed and the new pattern improved the rate of preoperative stoma site marking,and didn′t affect the accuracy of preoperative stoma site marking.Meanwhile,we also improved the nurses′level of preoperative stoma site marking in our department.

A forensic identification case and DPid - can it be a useful tool?

Abstract Objective The aim of this study was to show DPid as an important tool of potential application to solve cases with dental prosthesis, such as the forensic case reported, in which a skull, denture and dental records were received for analysis. Material and Methods Human identification is still challenging in various circumstances and Dental Prosthetics Identification (DPid) stores the patient's name and prosthesis information and provides access through an embedded code in dental prosthesis or an identification card. All of this information is digitally stored on servers accessible only by dentists, laboratory technicians and patients with their own level of secure access. DPid provides a complete single-source list of all dental prosthesis features (materials and components) under complete and secure documentation used for clinical follow-up and for human identification. Results and Conclusion If DPid tool was present in this forensic case, it could have been solved without requirement of DNA exam, which confirmed the dental comparison of antemortem and postmortem records, and concluded the case as a positive identification.