نتایج جستجو برای: fixed orthodontic appliances
تعداد نتایج: 220727 فیلتر نتایج به سال:
OBJECTIVE The release of toxic metal ions from orthodontic alloys has induced concerns regarding the biocompatibility of fixed appliances. This study investigated the genotoxic effect of metal appliances in a sample of patients undergoing fixed orthodontic treatment. MATERIALS AND METHODS The study included twenty-five healthy individuals requiring orthodontic therapy in both jaws. The patien...
BACKGROUND Malocclusion is a common disease of oral and maxillofacial region. The study was aimed to investigate levels changes of periodontal pathogens in malocclusion patients before, during and after orthodontic treatments, and to confirm the difference between adults and children. METHOD One hundred and eight malocclusion patients (46 adults and 62 children at the school-age) were randoml...
Enamel demineralization is an undesirable but common complication of orthodontic fixed appliances therapy. The purpose of this study was to test long-term benefits of resin-modified glass ionomer cement (GC Fuji OrthoTM LC) for the prevention of demineralization in patients receiving orthodontic treatment with fixed bonded appliances. 90 healthy extracted premolars without any clinical signs of...
INTRODUCTION Plaque control is the major consensus during orthodontic treatment to prevent the occurrence of cavities and periodontal inflammation. The mechanic resource of greater effectiveness and frequent use in this control is the oral hygiene. The tooth brushing techniques most used in orthodontic patients are: Ramfjord's method, Modified Stillman technique and Bass method. OBJECTIVE Sin...
Objective: The study was conducted to find out the correlation if any between the duration of wearing orthodontic appliances and the intensity of transient bacteremia. Materials and methods: Study has been carried out on 50 subjects (21 males and 29 females), age ranging from 11 to 21 years, categorized in the separate groups with 25 subjects in each group of fixed (E1) and active removable app...
BACKGROUND Orthodontic therapy has oral ecological changes causing increased numbers of mutans streptococci in saliva and plaque. The purpose of this study was to estimate counts and colonization pattern of Streptococcus mutans after application of fixed orthodontic appliances. MATERIALS AND METHODS Plaque samples of randomly selected sixty patients were collected before placement of orthodon...
BACKGROUND Studies have shown conflicting results on the association between nickel exposure from orthodontic appliances and nickel sensitization. OBJECTIVES & METHOD: In a cross-sectional study, we investigated the association between nickel sensitization and exposure to orthodontic appliances and piercings. 4376 adolescents were patch tested following a questionnaire asking for earlier pierci...
one common negative side effect of orthodontic treatment with fixed appliances is the development of incipient caries lesions around brackets, particularly in patients with poor oral hygiene. different methods have been used to prevent demineralization such as fluoride therapy and application of sealant to prevent caries. the recent effort to improve the resistance against the demineralization ...
INTRODUCTION The effect of fixed orthodontic appliances on biochemical changes in saliva and pathophysiological status of the oral cavity is not clear. Recent data showed that nickel (Ni) released from orthodontic appliances can decrease cellular viability, induce DNA damage and apoptosis in oral mucosa cells. Since the mechanism of these Ni effects is unknown, the aim of our study was to analy...
The aim of the present study was to evaluate oral hygiene status of patients receiving fixed orthodontic treatment and to monitor it longitudinally. Main sample consisted of one hundred patients with an age range of 12-25 years, having a full complement of permanent dentition, reporting to the orthodontic department of the Punjab Dental Hospital, Lahore. Patients having major medical problems, ...
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