ObjectiveThe research discusses the relation between Syk and RANKL and alveolar bone remodelingduring orthodontic tooth movement through experimental animal models, TRAP staining andimmunohistochemistry methods of chemical, in order to deeply understand the mechanism oforthodontic tooth movement, and provide a new target of promoting or inhibiting the toothmovement to oral orthodontic work.Methods36 male Wistar rats were [...]
ObjectiveThe nickel-titanium shape memory alloy wire has superior hyperelastic and shape memory function, widely used in orthodontic clinic,however the suitable temperature in the mouth and various chemicals in the saliva will make alloy surface lose luster,and make corrosion. Not only the corrosion reduce strength of the alloy,but also the corrosion products (the metal ions) do [...]
Objective With the development of medical science, human medicine and gradually increasing awareness of the medical model have undergone profound changes, from the traditional “biological” medical model to the modern “biological rationale for a JLI of a society” medical model transformation. Psychological factors in disease prevention and therapy of gradually are recognized . The transformation [...]
Objective Animal models of orthodontic tooth movement were established in rats, To observe the expression of Integrin-am in trigeminal ganglion (TG),spinal trigeminal nucleus(Vsp) and cerebral cortex of rats during experimental orthodontic tooth movement, to investigate the role of Integrin-am in chronic pain,Learn more about chronic pain in the nerve conduction pathway of early orthodontic treatment. [...]
Objective:The purpose of this study was to compare and analyze the effect of different kinetic coefficients of friction to space closure using sliding mechanics by nonlinear finite element method.Method:Firstly, we established a three-dimensional geometry model composed of upper dentition-periodontal tissues-wire-straight wire appliance by laser scanning, CAD and geomagic 5.0, ideas software and three-dimensional nonlinear finite [...]
In recent years,with the raise of people’s economy level,the concern of oral health,the orthodontic technique and materials,more and more adults with malocclusion need orthodontic treatment.However,adult oral environment is complex with different degrees of gingivitis,periodontitis,alveolar resorption,tooth loose and tooth displacement,among which periodontitis is the most common.Before orthodontic treatment,periodontitis patients need thorough periodontal treatment.Periodontitis is controlled and [...]
Background:Extracellular matrix(ECM) is a substance made of bio-macromolecules which is synthetized and excreted to extracellular by odontoblasts and fibroblasts of dental pulp.It spreads among the cells and the surface of cells.Its chemical composition is a port to explore the metabolic activities and functions of pulp cells.Matirx metalloproteinases(MMPs) produces key marked effects during metabolic processes of [...]
With development of orthodontics, the unity of outlook and function of stomatognathic system was concerned more and more. AngleⅡ2 malocclusion is common. The typical clinical situation of AngleⅡ2 can affect the function of stomatognathic system. Such as serious tooth abrasion, shorter of profile height, temporomandibular disorder (TMD), etc.Analysis of condyle movement trace is one part [...]
Objective: As the number of adult orthodontic patients increasing, aesthetic and comfortable demands during orthodontic treatment increased. Conventional fixed orthodontic appliances can’t satisfy aesthetic demands of adult patients. The need to avoid conventional fixed orthodontic appliances led to multiple “invisible “appliances. This article is to investigate the clinical effect of mild dental crowding cases applying [...]
Objective: A cephalometric study of 26 adults with mandibular first molars loss treated by the Otiental Pre-adjusted Appliance KOSAKA technology was undertaken to assess the results of treament. To analyze the facial vertical changes of patients in the treatment with mandibular first molars loss, and to explore the effects of the mandibular first molars loss [...]
Hello,My name is Jack,Ph.D. Supervisor, Welcome to My WebSite