as I find this study provides important answers to what many orthodontists have asked. Since miniscrews became an integral part of contemporary orthodontic practice, some of failed miniscrews have been re-sued for various reasons. Yet, up to date, there is no firmly agreed consensus in our profession regarding this area, and this investigation attempts to show how the relevant factors come into...

Abstract The study aimed to assess the alterations in morphology, elemental composition, and biocompatibility of infra-zygomatic crest (IZC) miniscrews, before after their insertion patient’s oral cavity. was conducted on 16 IZC miniscrews (8 as-received 8 retrieved). Scanning electron microscopy (SEM) used evaluate miniscrew surfaces. Micrographs were obtained at ×50, ×100, ×500 magnification....

Introduction: Etiology of dental crowding may be related to arch constriction in diverse dimensions, and an appropriate manipulation of arch perimeter by intervening in basal bone discrepancies cases, may be a key for crowding relief, especially when incisors movement is limited due to underlying pathology, periodontal issues or restrictions related to soft tissue profile. Objectives: This c...

OBJECTIVE We compared the skeletal and dental changes that resulted from the use of two methods of intermaxillary fixation (IMF)-miniscrews and surgical archwire-in 74 adult patients who had Class III malocclusion and were treated with the same orthognathic surgical procedure at a hospital in Korea. METHODS All the patients underwent Le Fort I osteotomy and bilateral sagittal split ramus oste...

The aim of this study was to measure the thickness of the hard palate and its overlying mucosa using cone-beam computed tomography (CBCT), for purposes of miniscrew placement. The sample comprised 36 CBCT scans of patients aged 12 to 52 years from a database of the Orthodontics Department of the Federal University of Rio de Janeiro. Paracoronal views of the palatal region were reconstructed at ...

This article reports the successful treatment method of scissors-bite correction using miniscrew anchorage and a lingual multi-bracket appliance. A female patient, 17 years and 4 months old, had a chief complaint of crowding of anterior teeth. The patient was given the diagnosis of Angle Class I malocclusion with bimaxillary protrusion and incisor crowding. She also showed a scissors-bite of th...

Background and aims. Nowadays miniscrews are widely used as skeletal anchorage in orthodontics. However, the success rate of miniscrews is less than that of osseointegrated implants. The aim of this retrospective study was to evaluate factors influencing the success rate of orthodontic miniscrews. Materials and methods. Data of 244 miniscrews in 122 patients (99 females and 23 males, with a mea...

To test the hypothesis that palatal bone is able to support miniscrews when subjected to forces generatedduring orthodontic treatment. Finite element method software ANSYS10.0 was used. Tests were done in a state of osseointegration and non osseointegration. Two different palatal regions i.e. one layer of cortical bone and underlying trabecular bone; & two layers of cortical bone with trabecula...