نتایج جستجو برای: miniscrew

تعداد نتایج: 330  

2017
Yu-Tzu Wang Jian-Hong Yu Lun-Jou Lo Pin-Hsin Hsu CHun-Li Lin

This study integrates cone-beam computed tomography (CBCT)/laser scan image superposition, computer-aided design (CAD), and 3D printing (3DP) to develop a technology for producing customized dental (orthodontic) miniscrew surgical templates using polymer material. Maxillary bone solid models with the bone and teeth reconstructed using CBCT images and teeth and mucosa outer profile acquired usin...

Journal: :European journal of orthodontics 2015
Letizia Perillo Abdolreza Jamilian Ali Shafieyoon Hossein Karimi Mauro Cozzani

SUMMARY BACKGROUND Titanium miniscrews are increasingly used as orthodontic anchorage. Various factors are known to affect the stability of miniscrew. Placement angle is one of the most controversial issues in this area. Thus, the aim of this finite element study was to evaluate the influence of placement angle and direction of force on the stability of miniscrews. MATERIALS AND METHODS Finit...

2014
Jin Hwan Choi Hyung Seog Yu Kee Joon Lee Young Chel Park

OBJECTIVE This study aimed to propose clinical guidelines for placing miniscrew implants using the results obtained from 3-dimensional analysis of maxillary anterior interdental alveolar bone by cone-beam computed tomography (CBCT). METHODS By using CBCT data from 52 adult patients (17 men and 35 women; mean age, 27.9 years), alveolar bone were measured in 3 regions: between the maxillary cen...

Journal: :Journal of clinical orthodontics : JCO 2007
Neal D Kravitz Budi Kusnoto William F Hohlt

JCO/APRIL 2007 A miniscrews are now widely used for incisor intrusion and posterior dental protraction. Interradicular placement of orthodontic miniscrews in the anterior region can be particularly challenging because of the chairside vantage point and the risk of root damage due to the proximity of the roots to the buccal cortical plate. Several stents for anterior miniscrew insertion have bee...

Journal: :Journal of clinical orthodontics : JCO 2012
Mohammad R Razavi

A 17-year-old female presented with the chief complaint of inability to bite properly. Clinical examination revealed a Class II, division 1 malocclusion with an anterior open bite and mild maxillary and mandibular tooth-sizearch-length discrepancies (Fig. 1, Table 1). The patient’s initial contact upon closure was between the maxillary and mandibular first molars, leading to a complex open bite...

Journal: :journal of dental materials and techniques 0
habib ollah ghanbari 1professor of periodontics, dental research center, school of dentistry, mashhad university of medical sciences, mashhad, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی مشهد (mashhad university of medical sciences) maryam gharechahi 2assistant professor of endodontics, dental materials research center, school of dentistry, mashhad university of medical sciences, mashhad, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی مشهد (mashhad university of medical sciences) majid ghanbarzadeh 3associate professor of orthodontics, dental research center, school of dentistry, mashhad university of medical sciences, mashhad, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی مشهد (mashhad university of medical sciences) azam nikkhaah raankoohi dentist parisa dastmalchi 5dental student, school of dentistry, mashhad university of medical sciences, mashhad, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی مشهد (mashhad university of medical sciences)

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...

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