نتایج جستجو برای: mini implant
تعداد نتایج: 77423 فیلتر نتایج به سال:
background. orthodontic mini-implants provide skeletal anchorage for tooth movement. there are two designs of mini-implants, tapered and cylindrical, which exhibit different clinical characteristics, including possible micro-damage to cor-tical bone. complications such as peri-implantitis and pain after mini-implant placement are common. the aim of this study was to evaluate the effect of mini-...
introduction: the purpose of this preliminary study was to evaluate the periodontal condition of intruded molars in various phases of treatments. methods: 30 patients with at least one overerupted upper first molar were selected. upper molar bands with brackets were cemented. two miniscrews were placed in the mesiopalatal and mesiobuccal aspect of the aforementioned teeth. a titanium molybdenum...
statement of problem: placement of mini-dental implants when single-tooth restorations are needed and the space is not sufficient to insert a standard diameter implant is indicated. there are many different mini-implant brands with various materials and surface characteristics; however, there are just few studies comparing them with each other. objectives: in this study, finite element analysis...
The use of mini-implants have made a major contribution to orthodontic treatment. Demand has aroused scientific curiosity about implant placement procedures and techniques. However, the reasons for instability have not yet been made totally clear. The aim of this article is to establish a relationship between implant placement technique and mini-implant success rates by means of examining the f...
Currently, temporary anchorage devices (TADs) are being used in orthodontic treatments for skeletal anchorages. However, patients remain apprehensive regarding the use of this novel concept in orthodontic procedures. The purpose of this study was to compare the differences and the change in pain perception after treatment using TADs (micro-implant, mini-implant and mini-plate). Fifty-seven TADs...
Objectives: To correlate between the different lengths, angles of insertion and mini-implant material find out most retentive combination.
 Materials methods: 48 mini-implants (24 Titanium 24 stainless steel) lengths 6mm, 8mm 1.5 mm diameter were inserted into humerus bone goat at two angulations, 600 900. insert in respective custom made template was confirmed with digital radiographs. Fo...
Mini-implant loss is often associated with physical and mechanical aspects that result from choosing an inappropriate placement site. It is worth highlighting that: a) Interdental alveolar bone crests are flexible and deformable. For this reason, they may not offer the ideal absolute anchorage. The more cervical the structures, the more delicate they are, thus offering less physical support for...
INTRODUCTION Placement of mini-implants carries with it the risk of iatrogenic damage to the adjacent root surfaces. The aims of this study were to assess the type of trauma incurred on tooth roots after contact or approximation with mini-implants during placement, and to observe and analyze the healing responses via histologic analysis. METHODS Four male minipigs were used as experimental su...
BACKGROUND This paper deals with the fabrication of a three-dimensional stent which is simple in design but provides an accurate placement of a mini-implant in three planes of space, namely, sagittal (root proximity), vertical (attached gingiva/alveolar mucosa) and transverse (angulation). FINDINGS The stent is made of 0.018×0.025 in. stainless steel archwire which consists of a 'u loop' angu...
Effect of mini-implant length and diameter on primary stability under loading with two force levels.
Mini-implants are widely utilized as anchorage units in orthodontic treatment. Nevertheless, there are factors that interfere with their clinical performance. The aim of this study was to examine the impact of length and diameter on the primary stability of two different types of orthodontic mini-implants loaded with two force levels. A total of 90 self-drilling mini-implants were inserted in b...
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