914 research outputs found
TRADUÇÃO COMENTADA DO CONTO FOLCLÓRICO JAPONÊS “CHIKARA TAROU”, DE KEISUKE NISHIMOTO
No full textThis work consists of an annotated translation of the Japanese folklore’s
short story “Chikara Tarou”, by Japanese author Keisuke Nishimoto, from Japanese
language to Brazilian Portuguese language. The research aims to contribute to the
Japanese Literary Translation Studies through an analysis of linguistic and cultural
aspects presented in the source text, as well as its consequences in the target
culture and language, theoretically based on Venuti’s (2004) concepts of
foreignization and domestication. Furthermore, this monograph seeks to disseminate
the Mukashi-banashi literary genre and the short story, not yet translated in Brazil,
providing knowledge concerning the author, genre, Japanese culture. In addition, it is
as an attempt of deconstructing sexism presented in the short story through its
annotated translation.O presente trabalho consiste em uma tradução comentada do conto
folclórico japonês “Chikara Tarou”, versão do autor Keisuke Nishimoto, do japonês
para o português brasileiro. A pesquisa objetiva contribuir para os Estudos da
Tradução Literária Japonesa através de uma análise dos aspectos linguísticos e
culturais presentes no texto de partida e suas consequências na língua de chegada,
utilizando como base os conceitos de estrangeirização e domesticação de Venuti
(2004). Ademais, este trabalho também visa divulgar o gênero literário Mukashibanashi do conto, o qual ainda não possui tradução no Brasil, fornecendo
informações acerca do autor, do gênero e cultura japonesa, como também busca
desconstruir certos valores culturais machistas presentes no conto através de sua
tradução
Prevalence of Intraosseous Anastomosis in Patients of Temple University Kornberg School of Dentistry
No full textObjectives: Progressive resorption of the alveolar ridge in the posterior maxilla and pneumatization of the maxillary sinus creates a challenging situation for rehabilitation with endosseous dental implants. Lateral wall sinus augmentation technique has proved to be predictable in gaining vertical bone height by the addition of bone graft under the schneiderian membrane. Cone beam computed tomography (CBCT) is essential for planning this bone augmentation technique to identify any concerns such as the presence of bony septae, sinus pathology, an intraosseous vascular canal, etc. that may contribute to potential complications. The purpose of this study is to investigate the prevalence of intraosseous anastomosis of the posterior superior alveolar artery (PSAA) and infraorbital artery (IOA) in the lateral wall of the maxillary sinus in patients of Temple University Kornberg School of Dentistry utilizing cone beam computed tomography (CBCT). Materials and Methods: 821 CBCT scans taken at Temple University Kornberg School of Dentistry Department of Oral Maxillofacial Radiology between January 2009 to December 31, 2015 were analyzed with iCATVisionQ software for the presence of an intraosseous artery in the lateral wall of the maxillary sinus, the most anterior tooth associated with the canal and the vertical distance from the artery to the floor of the sinus. Age, gender, ethnicity, and dentition status were also evaluated. Of the 821 scans reviewed, 447 patients met the inclusion criteria of the study. The 447 patients were subdivided by gender into 249 females and 199 males, and subdivided by ethnicity into 292 Caucasians, 42 Asians, 24 Hispanics, and 90 African Americans. The data was documented in an excel spreadsheet and analyzed. Results: Based on the 447 scans included in this study, there was an anastomosis of the posterior superior alveolar artery and infraorbital artery in the lateral wall of the sinus in 752 (84%) of the sinuses evaluated. The majority of the detected vascular canals were seen bilaterally. There was also a presence of multiple canals in 155 (17%) sinuses, the majority being two canals. The highest number of canals visualized was four canals in four sinuses. The tooth most associated with the vascular canal was the second premolar. The average distance from the vascular canal to the floor of the sinus was 12mm. Conclusions: Based on the results of this retrospective study, the prevalence of an intraosseous anastomosis in the lateral wall of the maxillary sinus is greater than previously reported (30-70%). In some cases, multiple intraosseous vascular canals were identified. With this knowledge, the importance of locating the vascular canals prior to surgery is important to minimize bleeding complications. Cone beam computed tomography (CBCT) should be a diagnostic tool for surgeries involving the lateral wall of the maxillary sinus.Oral Biolog
Retrospective cone beam computerized tomography study of the infraorbital foramen in relation to the maxillary sinus
No full textObjectives: As cone beam computerized tomography is used more widely for initial data collection and treatment planning, more valuable anatomic information is at the disposal of clinicians. The scans provide a very accurate display of the patient’s anatomy and these beneficial findings can be used to prevent surgical complications as well as advancing anatomical knowledge. This study aims to expand the current knowledge on the location of the infraorbital nerve in relation to the maxillary sinus in a group of patients who had CBCT scans taken for diagnosis and treatment planning. The study also aims to determine if age, gender or ethnicity have a relationship with the location of the nerve in relation to the sinus. Materials and Methods: 821 CBCT scans were take at Temple University Kornberg School of Dentistry Department of Oral and Maxillofacial Radiology from January 1, 2009 to July 31, 2013. These scans were evaluated using i-CAT computer imaging software. Patients under 18, patients without posterior or maxillary dentitions and patients who’s scans did not include the infraorbital nerve were excluded from the study. A total of four hundred three (403) CBCT scans were included in the study. Patients with visible infraorbital nerves were selected and location, age, gender and ethnicity were recorded. Individual scans had infraorbital nerves identified and examined for relationship superior to a specific tooth, and distance above the floor of the sinus. Results: After reviewing 680 scans, only 403 were included in the study due to exclusions. Scans were subdivided into age, gender, ethnicity and location of the nerve in relation to tooth position. The total average distance from the infraorbital foramen to the floor of the maxillary sinus was 23.94 mm on the right side and 22.84 mm on the left side. The average distance of males was 25.3 mm on the right and 24.27 mm on the left. The females’ average distance was 22.77 mm on the right and 21.62 mm on the left. The distance increased as the patients aged. The most common maxillary tooth inferior to the foramen was second premolar 46.65% of time, followed by the first molar 41.69% of the time. The difference between genders, right and left sides, and age groups all showed statistical significance. The differences between the ethnicities were not statistically significant. Conclusion: Based on the data collected and analyzed in the present study, the infraorbital foramen appeared to be located above the second premolar or first molar 88% of the time. The distance of the foramen from the floor of the sinus was larger in men than women. The right and left side can be different, and the distance tends to increase with the age of the patient. This information can be applied to better achieve local anesthetic delivery success, and avoid complications and nerve damage when performing procedures.Oral Biolog
PREVALENCE OF ODONTOGENIC RELATED MAXILLARY SINUS PATHOLOGY IN PATIENTS OF TEMPLE UNIVERSITY KORNBERG SCHOOL OF DENTISTRY
No full textABSTRACT Objectives: Cone beam computerized tomography use is becoming more common in preparation for surgical planning and treatment diagnosis by clinicians. The scanning result gives clinicians a more accurate understanding of each patients’ anatomy, which aids in designing better treatment plan, avoidance of vital anatomy, etc. Modern treatments involving extraction of teeth has become more sophisticated due to advent of dental implant treatment. Along with the procedure, more sophisticated treatment techniques involving manipulation of sinus has flourished. Traditional periapical and panoramic radiograph are not as adapt at identifying sinus pathologies. As patients age, proximity of sinus floor and apex of teeth may become closely related where possibility of one affecting another is observed. This study aims to study the prevalence of odontogenic related pathologies in relation to maxillary sinus in the population who had CBCT images taken at Temple University Kornberg School of Dentistry. The study also looks in detail the relationship of such pathology in relation to teeth status, age, gender, and ethnicity. Methods: 821 CBCT scans completed at Temple University Kornberg School of Dentistry Department of Oral Maxillofacial Radiology from January 1st, 2009 to July 31, 2013 were evaluated with iCAT computer imaging software. Patients under 18, no posterior dentition, or complete edentulous were excluded from the study. A total of four hundred fourty four (444) CBCT scans were included in the study. Patients with odontogenic related maxillary sinus pathology were selected and teeth status, age, gender and ethnicity recorded. Individual scans had sinus pathology identified and examined for proximity and relationship to respective tooth/teeth. Each individual tooth’s status were also recorded. Chi-square test was conducted to verify validity Results: After reviewing 680 scans, only 444 were included in the study due to exclusions. Scans were subdivided by age (18-35: 77, 36-53: 113, 54-71: 188, 72> : 46), gender (280 male and 164 female), ethnicity (African American 86, Asian 45, Caucasian 291, Hispanic 22), tooth status (caries, 26, crown 87, healthy 31, impacted 11, root canal 88, restoration 58), tooth position ( 3rd molar 9, 2nd molar 86, 1st molar 138, 2nd premolar 20, 1st premolar 6, canine 3). Overall 63.06% of scans were classified as healthy, and 36.04% were classified as presenting odontogenic related maxillary sinus pathology. None of the parameters showed significant predilection to odontogenic related pathology, however, 1st molar has the highest risk of exhibiting pathology in the maxillary sinus with 2nd molar second. The pathology incidence rates are slightly higher in male patients 41% vs 34%. Age is not a significant factor as all age groups demonstrates similar incidence rate except 72> group. Dentition status showed root canal and crown being the most commonly associated with pathology at 29% each. In Caucasian population, crown and root canal was most commonly related. African American was restoration and healthy teeth. Asian population had the most link with large restorations. Conclusions: Maxillary 1st molar is the most commonly involved tooth with maxillary sinus pathologies with 2nd molar as second most common. Caucasian individuals had the most odontogenic related pathologies. In general, crown and root canal are associated with a significant number of pathologies found in the sinus and should be evaluated prior to any surgical evaluation prior to any sinus manipulative surgery or odontogenic treatment.Oral Biolog
PREVALENCE, LOCATION, AND MORPHOLOGY OF MAXILLARY SINUS SEPTA IN A UNITED STATES PATIENT POPULATION
No full textObjectives: The presence of sinus septa may cause complications in maxillary sinus elevation surgery such as perforations. CBCT is important for planning the size, shape, and position of the sinus septa, and help separation of the sinus membrane from the bony septum. The purpose of this study is to determine the prevalence, location and morphology of maxillary sinus septa in patients of Temple University Kornberg School of Dentistry. Materials and Methods: Eight hundred and twenty one scans taken in Temple University Kornberg School of Dentistry between 2009 to July 31, 2013 were evaluated by use of the iCAT software. Age, gender, ethnicity, and dentition status were also evaluated to determine potential relationship of the presence of sinus septa. Results: This study included 680 patients subdivided by gender into 360 female and 320 male, and subdivided by ethnicity into 408 Caucasian, 61 Asian, 51 Hispanic, and 160 African Americans. Septa were present in 303 of 680 patients (44.56%) and 485 of 1360 sinuses (35.7%) evaluated. 26.76% of patients with one or multiple sinus septa were present on both sides of the sinus, and 17.79% of patients with one or multiple septa were present on either right or left side only. Septa height has a mean of 5.26 mm (range of 1.2 to 22.30 mm). Septa were located in premolar, molar, and retromolar regions in 43.4%, 42.03% and 14.6 % respectively. The most common location of the septa is the second premolar region. Orientation of septa was vertical in 67.8 %, transverse 31.68 %, and horizontal 0.005% of cases. Complete septa were found in only 0.01 % of patients evaluated. Conclusions: Incidence of septa was found in 44.56% of the scans. The age, gender, and ethnicity factors are not statistically significant. However, according to the Wald test, the prevalence of septa in Caucasian and Hispanic groups are statistically significant (p< 0.05) from African Americans. Prior to sinus augmentation surgery, CBCT scans should be carefully evaluated for the septa location and height to prevent surgical complication such as perforations.Oral Biolog
IN VITRO EVALUATION OF A DIFFERENTIAL REFLECTOMETRY DENTAL CALCULUS DETECTION INSTRUMENT
No full textObjectives: The presence of subgingival dental calculus on tooth root surfaces, an important risk factor in the pathogenesis of human periodontitis, is clinically challenging to reliably detect with existing tactile-based, manual forms of dental instrumentation. In 2003, the United States Food and Drug Administration granted approval for marketing in the United States of a differential reflectometry-based device (DetecTar, NEKS Technologies, Laval, Quebec, Canada) for detection of subgingival dental calculus in humans. The instrument employs a light-emitting diode to deliver red light from the visible light region of the electromagnetic spectrum, with a 635 nm-specific wavelength, onto tooth root surfaces through an optical fiber extending to the tip of a periodontal probe-like handpiece. The optical fiber also collects light reflected back from oral surfaces, from which the optical signature of dental calculus is identified by matching the spectra of the reflected light to an internal computer software database containing red light spectra characteristic of dental calculus in its reference library. To date, only a limited amount of in vitro and in vivo research has been conducted on the DetecTar differential reflectometry device. As a result, the purpose of this study was to to assess, with an in vitro typodont model system, the ability of the DetecTar differential reflectometry device to reliably identify subgingival dental calculus on tooth root surfaces. Methods: A total of 108 subgingival sites on mandibular posterior plastic teeth, of which 73 (67.6%) exhibited artificial dental calculus deposits, were mounted within typodont models of the human oral cavity, comprised of white plastic teeth emerging from and surrounded by anatomically-accurate pink silicone gingival and palatal soft tissues. Each typodont was attached to a phantom head with simulated soft tissue mouth shrouds. Sheep blood was irrigated into subgingival and interproximal areas around typodont teeth to simulate gingival tissue inflammation, and artificial saliva applied onto supragingival typodont tooth surfaces to further simulate typical oral cavity conditions in humans. The 108 test subgingival surfaces were then evaluated with the DetecTar differential reflectometry device in duplicate readings performed by a single periodontist examiner blinded to the typodont distribution of subgingival dental calculus. Emission of a sustained audible signal tone from the DetecTar differential reflectometry device upon entry of its optical fiber tip into typodont periodontal pockets indicated detection of subgingival dental calculus. The diagnostic performance of the DetecTar differential reflectometry device, relative to in vitro detection of subgingival dental calculus, was assessed among all test root surfaces, as well as among proximal and non-proximal root surfaces, with calculations of sensitivity, specificity, positive predictive value, negative predictive value, positive likelihood value, negative likelihood value, diagnostic odds ratio, accuracy (diagnostic effectiveness), and Youden’s Index. Results: Among all root surfaces, the DetecTar differential reflectometry device revealed a sensitivity of 75.4%, specificity of 86.3%, positive predictive value of 86.0%, negative predictive value of 75.9%, positive likelihood value of 5.5, negative likelihood value of 0.3, diagnostic odds ratio of 19.6, accuracy (diagnostic effectiveness) of 80.6%, and Youden’s index value of 0.62, for in vitro detection of subgingival dental calculus. More favorable diagnostic test findings for the device were found on non-proximal (buccal and lingual) than proximal (mesial and distal) root surfaces, with accuracy (diagnostic effectiveness) values 22.7% lower at proximal sites, indicating a poorer performance capability of differential reflectometry within interproximal periodontal pockets. Only a fair level (kappa = 0.42) of reproducibility was found in duplicate scoring of tooth root surfaces for subgingival dental calculus by the DetecTar differential reflectometry device. Conclusions: These study findings suggest marked limitations in the potential clinical utility of the DetecTar differential reflectometry device for detection of subgingival dental calculus. The device demonstrated markedly decreased in vitro accuracy on mesial and distal typodont tooth root surfaces, as compared to non-proximal tooth sites, and exhibited only a fair level of reproducibility in duplicate assessments. The overall performance of the DetecTar differential reflectometry device appears to be inferior to similar assessments of typodont tooth root surfaces conducted by other investigators with more conventional tactile-based, manual instrumentation. Based on these in vitro findings, routine clinical utilization of the DetecTar differential reflectometry device in dental practice is not recommended.Oral Biolog
Intrascrotal epidermoid cyst: report of two cases
No full text1)陰嚢内に発生したepidermoid cystの2例を経験したので報告した.41歳男, 47歳男, Epidermoid cystの診断にはMRIが非常に有用と考えられたA 41-year-old man and a 47-year-old man presented with an intrascrotal mass. The routine studies and ultrasonography showed that the mass was not associated with the testis, epididymis or spermatic cord, but the magnetic resonance imaging was the most useful for making a preoperative diagnosis. Both patients received transscrotal resection of the mass, the histopathological diagnosis of which was epidermoid cyst. A total of 24 cases of epidermoid cyst have been reported in the Japanese literature
MODE ANALYSIS OF METAMATERIAL COMPOSED OF CONDUCTING SPHERES AND WIRES BY EQUIVALENT CIRCUIT MODEL
No full text2012年3月20日-23日 岡山大学 C-1-37本文データは学協会の許諾に基づきCiNiiから複製したものであ
IN VITRO PERFORMANCE OF AN ODU 11/12 DENTAL EXPLORER FOR DETECTION OF SUBGINGIVAL DENTAL CALCULUS.
No full textObjectives: Subgingival dental calculus is recognized as an important contributing risk factor in the initiation and perpetuation of inflammatory forms of human periodontitis, and its removal from diseased tooth root surfaces constitutes a critical clinical end-point in periodontal therapy. As a result, the reliable detection of subgingival dental calculus on tooth root surfaces is of paramount importance in periodontal diagnostics. A wide range of manual dental instruments have been employed to detect by tactile sensation the presence of subgingival dental calculus deposits on teeth. However, the Old Dominion University (ODU) 11/12 dental explorer is presently used by all regional dental licensure examining boards in the United States to identify subgingival dental calculus on patients. Interestingly, little data is presently available to validate the ability of the ODU 11/12 dental explorer to reliably discriminate between dental calculus- positive and –negative tooth root surfaces. As a result, the purpose of this study was to to assess, with an in vitro typodont model system, the ability of an ODU 11/12 dental explorer to accurately identify subgingival dental calculus on tooth root surfaces. Methods: A total of 108 subgingival sites on mandibular posterior plastic teeth, of which 73 (67.6%) exhibited artificial dental calculus deposits, were mounted within on typodont models of the human oral cavity, comprised of white plastic teeth emerging from and surrounded by anatomically-accurate pink silicone gingival and palatal soft tissues. Each typodont was attached to a phantom head with simulated soft tissue mouth shrouds. Sheep blood was irrigated into subgingival and interproximal areas around ii typodont teeth to simulate gingival tissue inflammation, and artificial saliva applied onto supragingival typodont tooth surfaces to further simulate typical oral cavity conditions in humans. The 108 test subgingival surfaces were then evaluated for subgingival dental calculus with an ODU 11/12 dental explorer in duplicate by a primary examiner, who was a board-certified periodontist with 30 years of clinical specialty experience. A periodontist initially educated as a dental hygienist and possessing 45 years of combined dental hygiene-periodontics clinical experience, scored all of the test subgingival tooth surfaces once as a secondary examiner. The diagnostic performance of the ODU 11/12 dental explorer, relative to in vitro detection of subgingival dental calculus, was assessed among all test root surfaces, as well as among proximal and non-proximal root surfaces, with calculations of sensitivity, specificity, positive predictive value, negative predictive value, positive likelihood value, negative likelihood value, diagnostic odds ratio, accuracy (diagnostic effectiveness), and Youden’s Index. Results: As utilized by the primary examiner, the ODU 11/12 dental explorer yielded a sensitivity of 91.2%, specificity of 78.4%, positive predictive value of 82.5%, negative predictive value of 88.9%, positive likelihood value of 4.2, negative likelihood value of 0.1, diagnostic odds ratio of 38.5, accuracy (diagnostic effectiveness) of 85.2%, and Youden’s index value of 0.70, for in vitro detection of subgingival dental calculus. Similar diagnostic test findings for the ODU 11/12 dental explorer were found on proximal (mesial and distal) and non-proximal (buccal and lingual) root surfaces, with accuracy (diagnostic effectiveness) values attained of 82.4% and 84.3%, respectively. Good reproducibility (kappa = 0.62) was found in duplicate scoring by the primary examiner of subgingival dental calculus with the ODU 11/12 dental explorer. The iii secondary examiner produced even better performance outcomes with the ODU 11/12 dental explorer, providing a sensitivity of 91.2%, specificity of 86.3%, positive predictive value of 88.1%, negative predictive value of 89.8%, positive likelihood value of 6.7, negative likelihood value of 0.1, diagnostic odds ratio of 66.5, accuracy (diagnostic effectiveness) of 88.9%, and Youden’s index value of 0.78, for in vitro detection of subgingival dental calculus. Similar to the primary examiner, the secondary examiner also found relatively close agreement in diagnostic test findings for ODU 11/12 dental explorer on both proximal and non-proximal root surfaces, with accuracy (diagnostic effectiveness) values attained of 85.2% and 92.6%, respectively. A good level of agreement (kappa = 0.62) was found between the primary and secondary examiners in their in vitro scoring of subgingival dental calculus with the ODU 11/12 dental explorer. Conclusions: These study findings provide important in vitro validation for continued use of an ODU 11/12 dental explorer for detection of subgingival dental calculus on dental licensure examining board examinations. The ODU 11/12 dental explorer exhibited a high level of in vitro discrimination between subgingival dental calculus-positive and calculus-negative tooth root surfaces in a typodont model system with experienced periodontist examiners. The ODU 11/12 dental explorer performed with a similar high level of diagnostic accuracy on both proximal and non-proximal tooth root surfaces, and exhibited good reproducibility in duplicate assessments made by the primary examiner, and showed good agreement between evaluations made by the primary and secondary examiners. Based on these in vitro findings, routine clinical utilization of the ODU 11/12 dental explorer in dental practice for the detection of subgingival dental calculus is recommended.Biolog
PREVALENCE OF MAXILLARY SINUS PATHOLOGY IN PATIENTS AT TEMPLE UNIVERSITY SCHOOL OF DENTISTRY- A COMPARATIVE STUDY
No full textObjectives: There is increasing research regarding pathology of the maxillary sinus in dentistry. This may be attributed to the increasing routine use of cone beam computerized tomography (CBCT) for diagnosis and treatment planning of complex dental treatments, and incidental findings identified by clinicians during the process. This study aims to compare two different CBCT viewing software programs, and evaluate their detection of pathological findings in the maxillary sinus of a group of patients at Temple University School of Dentistry. Methods: A total of 316 CBCT scans taken on 176 females and 140 males (202 Caucasian, 69 African-American, 30 Asian, and 15 Hispanic) between 2009 and mid- 2013 by the Division of Oral & Maxillofacial Radiology at Temple University School of Dentistry were evaluated using i-CAT and INFINITT viewing software programs. The CBCT scans were examined with both viewing programs, and classified each time by independent evaluators as yielding one of 5 categories of maxillary sinus pathology as follows: healthy status with mucosal thickening ≤ 3 millimeters, mucosal thickening > 3 millimeters, polypoidal mucosal thickening, partial opacification, or complete opacification. Results: The i-CAT viewing program revealed 193 (61.1%) scans with a healthy maxillary sinus presenting with mucosal thickening ≤ 3 millimeters, and 123 (38.9%) scans yielding various forms of maxillary sinus pathology. In comparison, the INFINITT viewing program found 194 (61.4%) scans with healthy maxillary sinus conditions without pathology, and 122 (38.6%) scans with various types of maxillary sinus pathology. The difference in detection of maxillary sinus pathology between the i-CAT and INFINITT viewing programs was not statistically significant. Conclusions: The i-CAT and INFINITT viewing software programs for evaluation of human CBCT scans used in dental treatment planning provided nearly identical information relative to detection of maxillary sinus pathology. This suggests that both viewing programs may be employed interchangeably by clinicians in their pre- treatment evaluation of the maxillary sinus in dental patients.Oral Biolog
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