Applied Anatomic Site Study of Palatal Anchorage Implants Using Cone Beam Computed Tomography

Abstract

Aim The purpose of this study was to conduct quantitative research on bone height and bone mineral density of palatal implant sites for implantation, and to provide reference sites for safe and stable palatal implants.Methodology Three-dimensional reformatting images were reconstructed by cone beam computed tomography (CBCT) in 34 patients, aged 18 to 35 years, using EZ Implant software. Bone height was measured at 20 sites of interest on the palate. Bone mineral density was measured at the 10 sites with the highest implantation rate, classified using K-mean cluster analysis based on bone height and bone mineral density.Results According to the cluster analysis, 10 sites were classified into three clusters. Significant differences in bone height and bone mineral density were detected between these three clusters (P<0.05). The greatest bone height was obtained in cluster 2, followed by cluster 1 and cluster 3.The highest bone mineral density was found in cluster 3, followed by cluster 1 and cluster 2.Conclusion CBCT plays an important role in pre-surgical treatment planning. CBCT is helpful in identifying safe and stable implantation sites for palatal anchorage.

Cone Beam Computed Tomography evaluation of palatal bone thickness for miniscrew placement in Down's syndrome

“…26 The anatomical structure of the palatal bone differs between individuals and between different areas within an individual. 22,27 The mean values and the ranges obtained at each one of the sites in the control group coincide with those of previously published series 18 we do not have references values for these measurements in individuals with DS. In the present study, PBT usually decreased progressively in a lateral direction from the midline and also in an anteroposterior direction, with exception of the area of the median palatal suture; these findings confirm the results of previous series in the general population.…”

“…11 This area has the obvious advantage that it does not contain anatomical structures such as blood vessels, nerves or tooth roots that could complicate insertion of the miniscrews 17 ; furthermore, the placement of TADs in this area does not interfere with tooth movements 14 and, compared with other sites, it offers greater comfort and better acceptance by patients. 12 The palatal bone has an irregular structure and morphology, 18 and it is therefore important to analyse the available bone before planning the insertion of miniscrews. Clinical examination, panoramic X-rays and cephalometry are of limited value in the assessment of PBT, 19 and it has been suggested that the best tool for determining PBT is the analysis of coronal CBCT images, 13 as image distortion and superposition is avoided.…”

Exploring CBCT-Based DICOM Files. A Systematic Review on the Properties of Images Used to Evaluate Maxillofacial Bone Grafts

“…Studies have reported on successful bone healing based on bone density information retrieved from CBCT-based data [13], but density values can be questioned due to distortion of Hounsfield Units (HU) in CBCT imaging, i.e., scanned regions of the same density in the skull can have different gray scale values in the reconstructed CBCT data set [14].…”

Mini-implants in the palatal slope – a retrospective analysis of implant survival and tissue reaction

“…Furthermore, it provides good bony support [1,5-7]. Median and paramedian insertion as well as various mechanics have been described [4,8-13].…”