Dear Sir, I am Dr Zhe Song, from Department of Ophthalmology of Dongfang Hospital Affiliated to Beijing University of Chinese Medicine in Beijing, China. I write to present a case report of the treatment of complex tr...Dear Sir, I am Dr Zhe Song, from Department of Ophthalmology of Dongfang Hospital Affiliated to Beijing University of Chinese Medicine in Beijing, China. I write to present a case report of the treatment of complex traumatic retina detachment, which has three huge breaks. A 35-year-old man, who was knocked down and hurt his right eye while playing football, complained of blur vision for a day. The visual acuity were 4/20 OD and 10/20 OS. The corrected visual acuity were 4/20 OD and 10/20 OS. The intraocular pressure were 12mmHg OD and 13mmHg OS. There was blood in the central vitreous of the right eye. One giant break and three nail type breaks were found in the temple retina. The temple retina detached, yet the macular area was not involved (Figure 1). And the fundus of the left eye was normal. B ultrasonic scan showed the right eye temple retina detachment (Figure 2). VEP and ERG of the eyes were normal.展开更多
Objective To investigate the application of assisted coiling techniques in the treatment of complex intracranial aneurysms. Methods From Jun. 2007 to Aug. 2010,36 patients with 41 complex intracranial aneurysms were t...Objective To investigate the application of assisted coiling techniques in the treatment of complex intracranial aneurysms. Methods From Jun. 2007 to Aug. 2010,36 patients with 41 complex intracranial aneurysms were treated by varient endovascular methods,including balloon, stent-assisted coiling and double microcatheter coilingtechniques. Results Among the展开更多
Dental materials have been continuously developing over a long period of time. Every effort has been made to develop the physical and mechanical properties of the materials to mimic the natural tooth substances. Howev...Dental materials have been continuously developing over a long period of time. Every effort has been made to develop the physical and mechanical properties of the materials to mimic the natural tooth substances. However, that has not yet been achieved, making it necessary to apply conservative dental treatments. Conservative treatments are procedures which minimize the amount of defective tooth structure removed while maximizing the remaining amount of intact tooth structure, and defining the margin of the restoration at the supragingival level. In a substantially destructed tooth, the direct restoration, which is the most conservative restoration, has the limitations on the retention or creation of the proper contour of the restoration. The indirectly partial coverage restoration has recently gained in popularity. This treatment preserves the tooth structure while allowing reconstruction of the destructed structure to enable correct and proper tooth functioning and also provides a satisfactory cosmetic appearance. The purpose of this paper is to review and compare the various conservative techniques of partial coverage restorations and the full coverage treatment with crowns.展开更多
To validate the use of the Index of Complexity,Outcome and Need (ICON) in assessing orthodontic treatment need among 12-13 year-olds in southern China,we determined the threshold value of ICON based on Chinese orthodo...To validate the use of the Index of Complexity,Outcome and Need (ICON) in assessing orthodontic treatment need among 12-13 year-olds in southern China,we determined the threshold value of ICON based on Chinese orthodontists' judgments. The samples consisted of 335 students in grade 7 from 16 randomly selected middle schools in Chengdu,China. Three associate professors provided ICON scores for each participant and the results were compared with the gold standard judgments from 25 experts on treatment needs. Based on the gold standard,195 casts belonged to the treatment category,while the rest 140 belonged to the no-treatment category. With the international cutoff point of 43,the sensitivity and specificity of the ICON score were 0.29 and 0.98. The best compromise between sensitivity and specificity in Chengdu,compared with the gold standard,was found at a cutoff point of 29,and the sensitivity and specificity were 0.88 and 0.83. When used to evaluate the treatment need of 12-13 year-olds in southern China,the international ICON cutoff value did not correspond well with Chinese orthodontists' judgments; a lower cutoff value of 29 offered a greater sensitivity and specificity with respect to expert orthodontists' perception of treatment need.展开更多
Introduction: Complex post-traumatic facial disfigurements are caused by civilian or ballistic trauma. Their repercussions are functional, aesthetic and psychological. The initial emergency or secondary management of ...Introduction: Complex post-traumatic facial disfigurements are caused by civilian or ballistic trauma. Their repercussions are functional, aesthetic and psychological. The initial emergency or secondary management of facial damage is difficult. The objective is to report, through the clinical observation of three patients, the results of the management of complex facial dislocations in a context of limited technical resources. Patients and methods: Three complex post-traumatic facial dislocations were managed between May 2006 and June 2017. Results: Primary treatment and secondary repair were established on a case-by-case basis. Local autoplasty was the indication of choice. Multidisciplinary management resulted in satisfactory functional and cosmetic outcomes. Two of the patients were lost to follow-up before the end of treatment. Discussion: The complete management of facial dislocations remains difficult and complex, in an extreme exercise situation. In an emergency, the priority is to save the life of the injured person. Several factors are involved in the therapeutic decision: the choice of the maxillofacial reconstruction technique, the availability of the technical platform, the financial capacity and the psychological state of the patient and his entourage. Sequential and multidisciplinary treatment gives satisfactory results in terms of morphology, function and aesthetics, despite the limited technical resources available. Psychological support is an essential complement for successful socio-professional and family reintegration.展开更多
文摘Dear Sir, I am Dr Zhe Song, from Department of Ophthalmology of Dongfang Hospital Affiliated to Beijing University of Chinese Medicine in Beijing, China. I write to present a case report of the treatment of complex traumatic retina detachment, which has three huge breaks. A 35-year-old man, who was knocked down and hurt his right eye while playing football, complained of blur vision for a day. The visual acuity were 4/20 OD and 10/20 OS. The corrected visual acuity were 4/20 OD and 10/20 OS. The intraocular pressure were 12mmHg OD and 13mmHg OS. There was blood in the central vitreous of the right eye. One giant break and three nail type breaks were found in the temple retina. The temple retina detached, yet the macular area was not involved (Figure 1). And the fundus of the left eye was normal. B ultrasonic scan showed the right eye temple retina detachment (Figure 2). VEP and ERG of the eyes were normal.
文摘Objective To investigate the application of assisted coiling techniques in the treatment of complex intracranial aneurysms. Methods From Jun. 2007 to Aug. 2010,36 patients with 41 complex intracranial aneurysms were treated by varient endovascular methods,including balloon, stent-assisted coiling and double microcatheter coilingtechniques. Results Among the
文摘Dental materials have been continuously developing over a long period of time. Every effort has been made to develop the physical and mechanical properties of the materials to mimic the natural tooth substances. However, that has not yet been achieved, making it necessary to apply conservative dental treatments. Conservative treatments are procedures which minimize the amount of defective tooth structure removed while maximizing the remaining amount of intact tooth structure, and defining the margin of the restoration at the supragingival level. In a substantially destructed tooth, the direct restoration, which is the most conservative restoration, has the limitations on the retention or creation of the proper contour of the restoration. The indirectly partial coverage restoration has recently gained in popularity. This treatment preserves the tooth structure while allowing reconstruction of the destructed structure to enable correct and proper tooth functioning and also provides a satisfactory cosmetic appearance. The purpose of this paper is to review and compare the various conservative techniques of partial coverage restorations and the full coverage treatment with crowns.
文摘To validate the use of the Index of Complexity,Outcome and Need (ICON) in assessing orthodontic treatment need among 12-13 year-olds in southern China,we determined the threshold value of ICON based on Chinese orthodontists' judgments. The samples consisted of 335 students in grade 7 from 16 randomly selected middle schools in Chengdu,China. Three associate professors provided ICON scores for each participant and the results were compared with the gold standard judgments from 25 experts on treatment needs. Based on the gold standard,195 casts belonged to the treatment category,while the rest 140 belonged to the no-treatment category. With the international cutoff point of 43,the sensitivity and specificity of the ICON score were 0.29 and 0.98. The best compromise between sensitivity and specificity in Chengdu,compared with the gold standard,was found at a cutoff point of 29,and the sensitivity and specificity were 0.88 and 0.83. When used to evaluate the treatment need of 12-13 year-olds in southern China,the international ICON cutoff value did not correspond well with Chinese orthodontists' judgments; a lower cutoff value of 29 offered a greater sensitivity and specificity with respect to expert orthodontists' perception of treatment need.
文摘Introduction: Complex post-traumatic facial disfigurements are caused by civilian or ballistic trauma. Their repercussions are functional, aesthetic and psychological. The initial emergency or secondary management of facial damage is difficult. The objective is to report, through the clinical observation of three patients, the results of the management of complex facial dislocations in a context of limited technical resources. Patients and methods: Three complex post-traumatic facial dislocations were managed between May 2006 and June 2017. Results: Primary treatment and secondary repair were established on a case-by-case basis. Local autoplasty was the indication of choice. Multidisciplinary management resulted in satisfactory functional and cosmetic outcomes. Two of the patients were lost to follow-up before the end of treatment. Discussion: The complete management of facial dislocations remains difficult and complex, in an extreme exercise situation. In an emergency, the priority is to save the life of the injured person. Several factors are involved in the therapeutic decision: the choice of the maxillofacial reconstruction technique, the availability of the technical platform, the financial capacity and the psychological state of the patient and his entourage. Sequential and multidisciplinary treatment gives satisfactory results in terms of morphology, function and aesthetics, despite the limited technical resources available. Psychological support is an essential complement for successful socio-professional and family reintegration.