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Localised cerebral perfusion within people with amnestic gentle cognitive incapacity: effect of cerebral small vessel illness.
01). Conclusions The hypermethylation of IL-4 promoter in RAU patients may be related to the reduction of IL-4 gene transcription. Vitamin B12, folic acid and smoking may affect IL-4 gene methylation in peripheral blood of RAU patients.Objective To evaluate the outcomes of immediate rehabilitation of the edentulous and potential edentulous jaws with implant-supported full-arch prostheses and analyse the risk factors of the complications. Methods This retrospective study included 273 patients treated with immediate rehabilitation of the edentulous and potential edentulous jaws with implant-supported full-arch prostheses from April 2008 to December 2018 in Department of Implantology, Peking University School and Hospital of Stomatology. The patients' sex, age, place of residence, jaw position, opposing dentition, number of implants, diameter and length of implants, abutment height and abutment angle were recorded. The survival rate of implants and marginal bone loss were calculated and analyzed. Cox proportional hazards ratio model was adopted to analyze the potential risk factors of prosthetic complications. Results A total of 225 patients (288 jaws) and 1 260 implants were included, with 126 males and 99 females, aged (57.3±11.0) years, wit the edentulous jaws with implant-supported full-arch prostheses can be a predictable technique. The immediate prosthetic mechanical complication prevalence was high. The use of 17° abutments in the anterior region may increase the risk of screw/abutment loosening. https://www.selleckchem.com/products/Nolvadex.html It is necessary to review in time.Deciduous caries and abnormal tooth development are common children's oral diseases which seriously harm the health of deciduous dentition, hinder the absorption of nutrients and affect the general growth and development. Caries of deciduous teeth progresses rapidly and can develop into rampant caries and other hard tissue diseases in a short time. The metal prefabricated crown is a stainless steel restoration for the treatment and repair of severe dental tissue damage in children. Its repair technique has certain operating procedures, requires specific equipments and materials, needs qualified dental clinicians to complete. The Society of Pediatric Dentistry, Chinese Stomatological Association organized experts to formulate the guideline of the clinical operation stainless steel crown restoration, so as to standardize the application of stainless steel crowns in the molar repair treatment of deciduous teeth such as caries in children and to further promote the application of the technique.Clear aligner is a kind of removable orthodontic appliance, which designed and manufactured using digital technology. It is more and more widely used in adults and patients with periodontal disease. Clear aligner treatment in patients with moderate and mild periodontal diseases can achieve good result. Meanwhile, there are still risks in the clear aligner treatment in patients with severe periodontal diseases, so it is necessary to strictly control the indications. Multidisciplinary treatment of complex periodontal disease is important before the start of orthodontics. The objective of orthodontic treatment in patients with periodontal disease should be made clear and the range of tooth movement must be strictly controlled. In the application of the clear aligner, the feasible target position of clear aligner should be designed. According to patient's periodontal condition, staging should be designed and the reasonable attachment should be set. The shape of the aligner should be designed to reduce the gingival stimulation. Clear aligner treatment could play an important role in multidisciplinary treatment, and improve the overall effect in patients with periodontal disease. The application of clear aligner in the treatment of periodontal diseases was discussed in various aspects, providing a reference for rational clinical use.The application of clear aligner technique in the preventive and interceptive treatment of children with malocclusion is a new hot spot in orthodontics, which has an extensive application prospect. However, the main advantage of this technique is the ability of predictable tooth movements. Early treatment of malocclusion often involves many aspects, such as muscle function adjustment, orthopedic treatment, and dentition replacement monitoring, etc. Therefore, the indications should be strictly controlled to avoid abusing the technique. The digital treatment planning, clinical monitoring also should be deliberated. The key point is how to avoid the shortcomings of the technique, and to provide a more comfortable and effective early treatment method for children.Clear aligner (CA) treatment achieves therapeutic goals through digital dental models and tooth movement planning. In recent years, with the increasingly wider clinical application of CA, orthodontists are frequently faced with the important choice of tooth extraction or non-extraction in treatment planning. This article addresses the approaches of providing spaces, the importance and criteria of choosing extraction or non-extraction plans, and the strategy of using digital treatment simulation.Clear aligner, covering the whole dentition, is considered to offer more stable anchorage units, which means the whole dentition would act as a strong anchorage except the teeth designed to move. Although we don't expect any movement of the anchorage teeth, it actually happens. It reminds us to pay attention to anchorage problems. In this article we have discussed the anchorage design in clear aligner therapy, compared clear aligner with traditional fixed appliance on anchorage control and provided some clinical strategies of anchorage design in vertical, sagittal and transverse tooth movement.Clear aligners are the fastest-growing appliances in this century, which are not only favored by patients, but also concerned by doctors. This article explains the significance of vertical control in orthodontic treatment, the advantages and disadvantages of vertical control with clear aligner. It also analyzes the causes of the shortcomings and how to use existing technologies and methods to make up for these shortcomings.
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