SciELO - Scientific Electronic Library Online

 
vol.36 issue3Superficial Ulnar Artery, Bilateral and Antebrachial. Similarities and DifferencesMicrovascular Anatomy of Olfactory and Accessory Olfactory (Vomeronasal) Organs in Adult Xenopus laevis : Scanning Electron Microscopy of Vascular Corrosion Casts author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand

Journal

Article

Indicators

Related links

  • On index processCited by Google
  • Have no similar articlesSimilars in SciELO
  • On index processSimilars in Google

Share


International Journal of Morphology

On-line version ISSN 0717-9502

Abstract

LI, Shi-Feng et al. Micro-Implanted-Anchorage Safety: Cortical Bone Thickness in the Maxillary Posterior Region of Skeletal Class II Malocclusion. Int. J. Morphol. [online]. 2018, vol.36, n.3, pp.1002-1006. ISSN 0717-9502.  http://dx.doi.org/10.4067/S0717-95022018000301002.

Cone Beam Computed Tomography (CBCT) measurement of cortical bone thickness and implantation angle in the maxillary posterior region was used to provide reference for the safety of Micro-Implanted-Anchorage (MIA) implantation in skeletal class II malocclusion. Twenty samples of CBCT images were collected from orthodontics patients (ages, 12-40 years) in Shanxi Medical University Stomatological Hospital, the thickness of cortical bone was measured at 45°, 60° and 90° from the alveolar crest, being at 4 mm, 6 mm and 8 mm, respectively. SPSS17.0 statistical software was used to analyze the data, and the one-way ANOVA and LSD method were compared. There was a significant difference in the thickness of the cortical bone obtained by implanting MIA at the same height of different angle (P≤0.05). The greater the inclination angle of the implanted MIA, the thicker the cortical bone. Also, the higher the implant site, the thicker the cortical bone thickness. Finally, the greater the thickness of the cortical bone in the maxillary posterior region of skeletal class II malocclusion, the greater the thickness of the cortical bone. At the same implantation height, implanted MIA with a tilt angle of 45º to 60º, 90º to obtain the best cortical bone thickness.

Keywords : Orthodontics; Skeletal class II malocclusion; Cortical bone; Micro-Implanted-Anchorage; Implantation angle; CBCT.

        · abstract in Spanish     · text in English     · English ( pdf )