نتایج جستجو برای: orthodontic appliance
تعداد نتایج: 20372 فیلتر نتایج به سال:
OBJECTIVE To investigate the determinant factors of discomfort attributed to the use of fixed orthodontic appliance and the effect on the quality of life of adolescents. MATERIAL AND METHODS Two hundred and seventy-two individuals aged between 9 and 18 years old, enrolled in public and private schools and undergoing orthodontic treatment with fixed appliance participated in this cross-section...
Aim: To compare 2 types of treatment for Class II malocclusion assessing mandibular behavior in subjects submitted to full orthodontic treatment with standard edgewise appliance and cervical headgear (Kloehn appliance) and those who used cervical headgear in the first period and with full orthodontic appliance in the second period. Methods: The sample consisted of 80 children treated with eithe...
INTRODUCTION The aim of this study was to evaluate the effectiveness of early orthodontic treatment with the Twin-block appliance for the treatment of Class II Division 1 malocclusion. This was a multi-center, randomized, controlled trial with subjects from 14 orthodontic clinics in the United Kingdom. METHODS The study included 174 children aged 8 to 10 years with Class II Division 1 maloccl...
BACKGROUND During orthodontic treatment, the various elements that constitute the fixed appliance undergo different processes. As a result of a change of the surface, elution/coverage of metals on the surface can be observed in the process of corrosion/passivation. MATERIAL AND METHODS Scanning electron microscopy with an energy-dispersive X-ray analytical system (SEM-EDX) was used to analyze...
INTRODUCTION The placement of fixed orthodontic appliances may lead to increased plaque accumulation and changes in subgingival microflora. OBJECTIVE The aim of this study was to examine the changes in frequency of subgingival microflora that occur after placement and removal of fixed orthodontic appliance using polymerase chain reaction (PCR). METHODS This study included 33 orthodontic pat...
INTRODUCTION The aim of this prospective, longitudinal, case-series study was to analyze the effect of orthodontic treatment by means of an activator appliance on the temporomandibular joint disc-condyle complex. METHODS The sample included 27 consecutively treated subjects with Class II Division 1 malocclussions (21 boys, 6 girls) who underwent orthodontic therapy with activators. The averag...
Moses describes an appliance termed a "passivator" which supports the mandible in an anterior and slightly open bite yet neither allows nor causes undesirable orthodontic tooth movements. This appliance is reported to support the patient’s mandible during sleep, prevent collapse of the pharyngeal musculature, allow greater volume of space for tongue activity and prevent incorrect swallowing and...
AIM Removable appliances are a dependable choice for many patients but like all orthodontic appliances, they have some limitations in use. Patient selection and appropriate appliance design are two key factors for success. Many patients, especially adults, prefer intra-oral appliances to extra-oral devices. Sometimes a removable intra-oral appliance can solve a dental problem in a shorter perio...
Situations where orthodontic appliances may cause pain or discomfort include: • A long wire that is located distal to the terminal bracket (i.e., a distal end) is irritating the mucosa (Fig. 1) • A bracket that has debonded, come loose and is irritating the mucosa • Orthodontic wire irritating the inner mucosa (Fig. 2) • A !xed orthodontic appliance that has come loose (e.g., a single band or a...
A 15 year and 1 month old Chinese female with palatally impacted upper left canine was successfully treated with an upper removable appliance with a magnet incorporated to provide orthodontic traction force. This case report indicates the possibility of using magnetic force as a safe, effective and comfortable way for orthodontic traction.
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