Miniscrew Applications in Orthodontics (original) (raw)
Related papers
Mini Implants in Orthodontics – An Overview
Anchorage control is a key factor in the success of orthodontic treatment. Recent developments in implantology now allows stationary anchorage without the use of extraoral appliances or complex biomechanical procedures. Miniimplants– enhanced anchorage has become a popular concept in orthodontics. Use of skeletal anchorage devices such as osseous dental implants, miniplates, miniscrews or microscrews offers clinicians’ reliable anchorage without patient compliance. Among these anchorage devices, miniscrew implants have increasingly been used for orthodontic anchorage because of their absolute anchorage, easy placement and removal, and cost effectiveness. Therefore, the skeletal anchorage system offers a nonsurgical orthodontic treatment option for skeletal (surgical) malocclusions, as well as a nonextraction treatment for malocclusions characterized by severe maxillary or mandibular protrusion, and/or anterior crowding. The purpose of the present article is to compare the mini- implant supported mechanics with conventional mechanics with the help of cases treated in the department of orthodontics.
Mini Implants in Orthodontics â An Overview
Research & Reviews: Journal of Dental Sciences, 2017
Anchorage control is a key factor in the success of orthodontic treatment. Recent developments in implantology now allows stationary anchorage without the use of extraoral appliances or complex biomechanical procedures. Miniimplants– enhanced anchorage has become a popular concept in orthodontics. Use of skeletal anchorage devices such as osseous dental implants, miniplates, miniscrews or microscrews offers clinicians’ reliable anchorage without patient compliance. Among these anchorage devices, miniscrew implants have increasingly been used for orthodontic anchorage because of their absolute anchorage, easy placement and removal, and cost effectiveness. Therefore, the skeletal anchorage system offers a nonsurgical orthodontic treatment option for skeletal (surgical) malocclusions, as well as a nonextraction treatment for malocclusions characterized by severe maxillary or mandibular protrusion, and/or anterior crowding. The purpose of the present article is to compare the mini- impl...
Miniscrew implants: The Aarhus anchorage system
Seminars in Orthodontics, 2005
The limitations of orthodontics, as determined by anchorage problems, have become more obvious as the number of adults seeking treatment increases. Different types of intraoralextradental anchorage, such as infrazygomatic crest ligature wires, miniplates, and miniscrews, have been suggested to overcome the limitations of traditional orthodontic anchorage. In the present article, the development of a miniscrew anchorage system is outlined. Based on the results of monkey experiments and finite element analysis, the locations for miniscrew placement and loading protocols are discussed. These studies suggest that immediate loading with known forces increases the bone density surrounding the miniscrews. Treatment planning, indications for skeletal anchorage, miniscrew biomechanics, and possible complications with the Aarhus anchorage ® system are discussed.
Miniscrew implants (MIs) have been widely used for anchorage reinforcement in orthodontics and have been extensively studied, especially during the last few years. However, evidence regarding their survival and clinical effectiveness is modest at the time. This article presents data from systematic reviews of prospective studies on the use of MIs. Limited but strong evidence supports the superior effectiveness of MIs compared to conventional anchorage. The average failure rate of MIs is relatively low, but the factors affecting it have not been adequately studied until recently. MI prognosis is independent of patient's gender, patient's age, and insertion side. In contrast, MIs inserted in the mandible are at a higher risk of failure than in the maxilla. However, although there are many issues based only on weak scientific evidence, some trends are already evident and are presented in this paper. Further high-quality large-scale studies are needed to clarify the association of the various factors with MI failures.
Orthodontic miniscrews: an experimental campaign on primary stability and bone properties
European journal of orthodontics, 2014
Summary OBJECTIVE : To evaluate the primary stability of different shaped miniscrews through the acquisition of data regarding maximum insertion torque, pullout force, and a radiodiagnosic evaluation of bone characteristics. Sixty fresh porcine bone samples were scanned by computed tomography (CT) and cone-beam computed tomography (CBCT). By means of a dedicated software, CT and CBCT images were analysed to measure the insertion-site cortical thickness, cortical density, and marrow bone density. Sixty miniscrews of 12 different types were implanted with no predrilling pilot hole in the bone samples. Every device was tightened by means of a digital torque screwdriver and torque data were collected. Subsequently, pullout tests were performed. Spearman and Pearson correlations were employed to compare any relationship between continuous variables. Different types of miniscrews did not show statistically significant differences in their torque value (P = 0.595), instead a significant di...
2020
Orthodontic appliances with mini implants became more popular in the field of orthodontics for past many years .There are wide array of mini implant designs, various materials are available for a variety of clinical uses in orthodontic practice. Absolute anchorage facilitated by mini implant system plays foremost role in successful orthodontic treatment .This literature review explains about historical background, parts, materials, types of mini implants and various clinical application in orthodontic purposes.
Mini-implants in the anchorage armamentarium: new paradigms in the orthodontics
International journal of biomaterials, 2012
Paradigms have started to shift in the orthodontic world since the introduction of mini-implants in the anchorage armamentarium. Various forms of skeletal anchorage, including miniscrews and miniplates, have been reported in the literature. Recently, great emphasis has been placed on the miniscrew type of temporary anchorage device (TAD). These devices are small, are implanted with a relatively simple surgical procedure, and increase the potential for better orthodontic results. Therefore, miniscrews not only free orthodontists from anchorage-demanding cases, but they also enable clinicians to have good control over tooth movement in 3 dimensions. The miniplate type also produces significant improvements in treatment outcomes and has widened the spectrum of orthodontics. The purpose of this paper is to update clinicians on the current concepts and versatile uses and clinical applications of skeletal anchorage in orthodontics.
A COMPARATIVE EVALUATION OF CURRENT ORTHODONTIC MINISCREW SYSTEMS
Miniscrew placement has achieved widespread acceptance in orthodontic practice. However, selecting a suitable miniscrew system from among the available brands is not easy. The aim of this article is to help the clinician better understand the features of miniscrew systems currently available on the market and provide a useful guideline for their clinical use. The authors find that the ideal miniscrew design should include biocompatibility, bone-density–guided insertion, immediate loading, and compatibility with modern orthodontic accessories for 3-dimensional orthodontic control.