Peri-implant bone tissue assessment by comparing the outcome of intra-oral radiograph and cone beam computed tomography analyses to the histological standard

Aim. To analyse the effi ciency of osteoplastic material application in order to reduce the resorption level after tooth extraction in the preimplantation period according to the data of cone beam computed tomography.Materials and methods. The study involved 80 patients who were divided into 4 equal groups depending on the preservation material used. The fi rst group was treated with Cerabone (Botiss, Germany) xenomaterial based on natural bovine bone. Plasma enriched with PRGF growth factors obtained by the BTI Endoret (Spain) technology was used for the patients of the second group. The third group consisted of patients who underwent a socket preservation of the extracted tooth with a powdered autologous dentin matrix (ADM) obtained from their own tooth. In the fourth group, bone-plastic material based on hydroxyapatite with Collapan-L lincomycin hydrochloride (Intermedapatit, Russia) was used to prevent socket resorption. All patients had a cone beam computed tomography of the maxillofacial region before the extraction and 3 months after the preservation in order to evaluate the level of bone resorption. After the installation of dental implants, a comparative assessment of the bone resorption level in the vertical and horizontal directions before tooth extraction and in the preimplantation period was carried out.Results. The smallest level of vertical bone resorption after socket preservation was observed in group 1 (Cerabone) and group 3 (ADM). The median value of the socket resorption level in group 1 was 0.7 mm (8.54 %) in the vertical direction and 0.5 mm (9.45 %) in horizontal measurement as compared to the level of bone tissue before tooth extraction. Similar indicators were observed in the group using an autologous dentin matrix. The vertical decrease in the socket bone tissue was 0.61 mm (7.75 %), horizontal — 0.51 mm (6.2 %). The level of bone resorption was signifi cantly higher using two other materials.Conclusions. The use of three-dimensional radiation research methods allows a comprehensive assessment of the bone tissue volume to be carried out, which in turn determines the choice of the dental implant size, the need for further bone-plastic surgery to increase the width/height of the alveolar ridge. The use of cone beam computed tomography showed that the most optimal results can be obtained by introducing Cerabone material into the socket of the extracted tooth, as well as using the innovative method of preservation with the patient’s own powdered tooth (ADM).

Download Full-text

STUDY OF THE ANATOMY OF THE MENTAL FORAMEN USING CONE-BEAM COMPUTER TOMOGRAPHY

The actual problems in dentistry ◽

10.18481/2077-7566-2020-16-3-90-95 ◽

2020 ◽

Vol 16 (3) ◽

pp. 90-95

Author(s):

Irina Shelegova ◽

Artur Heigetyan ◽

Dar'ya Vazhenina ◽

Natal'ya Nurieva

Keyword(s):

Computed Tomography ◽

Bone Tissue ◽

Optical Density ◽

Cone Beam Computed Tomography ◽

Anatomical Variation ◽

Mental Foramen ◽

Cone Beam ◽

Cortical Plate ◽

Mineral Density ◽

The Right

Subject. The article discusses the possibilities of cone-beam computed tomography in the study of the anatomy of the mental foramen: size, shape, topography, as well as the optical density of bone tissue at the mental foramen. The goal is to investigate the size, shape and topography of the mental foramen, as well as the optical density of bone tissue in it using cone-beam computed tomography. Methodology. The computed tomograms of the lower jaws of 26 patients were analyzed, according to which the vertical and horizontal dimensions of the mental openings were measured on the right and left, the number and sizes of additional mental openings, their location according to the Tebo and Telford classification, and the bone mineral density under the mental opening were determined. Statistical analysis was carried out using Microsoft Excel, Windows 9. Results. The resulting average dimensions of the right (4.01x3.93 mm) and left (3.81x3.95) mental holes confirm the results of more extensive studies done earlier. In the first case (1.9 %), an anatomical variation of the mental opening was revealed: 3 holes with dimensions 2.1×2.1 mm, 2.0×0.9, and 1.9×2.4. The symmetrical location of the chin foramen was found in 15 patients (57.7 %). In most cases, types III (25 %) and IV (53.84 %) of the location of the mental opening were identified. The average optical density of bone tissue under the mental foramen on the right side was 1618.9±145.1 HU, on the left ― 1571.64±159.64. There were no significant differences in the optical density of bone tissue for types II―IV of the location of the mental foramen. Conclusions. A significant variability in the topography of the mental foramen was revealed, in this regard, methods of mental anesthesia with a personalized approach, for example, the method of anesthesia of the intraosseous part of the chin nerve, are becoming relevant (authors Rabinovich S.A., Vasiliev Yu.L., Tsybulkin A.G.). High values of the optical density of bone tissue at the mental foramen confirm the ineffectiveness of diffusion of anesthetics through the cortical plate.

Download Full-text

EVALUATING OPTICAL DENSITY OF ALVEOLAR BONE IN PATIENTS WITH DIABETES MELLITUS USING CONE-BEAM COMPUTED TOMOGRAPHY

Archiv Euromedica ◽

10.35630/2199-885x/2021/11/2/28 ◽

2021 ◽

Vol 11 (2) ◽

pp. 108-117

Author(s):

Natalya Prozorova ◽

Roman Fadeev ◽

Victor Weber ◽

Marina Chibisova ◽

Natalia Robakidze ◽

...

Keyword(s):

Diabetes Mellitus ◽

Computed Tomography ◽

Bone Tissue ◽

Optical Density ◽

Cone Beam Computed Tomography ◽

Alveolar Bone ◽

Cone Beam ◽

Root Tips ◽

Patients With Diabetes ◽

Tomography Data

The study involved an analysis of optical density of the maxillary and mandibular bone tissue based on cone-beam computed tomography data. It has been shown that the structure and bone tissue density depend on the severity of diabetes mellitus and complications. The results of the study revealed a significant decrease in the bone tissue optical density at the tooth necks in people suffering from diabetes mellitus, whereas fewer changes were manifested at the middle third of the dental roots. Minor changes or even an increase in the optical density were observed at the dental root tips.

Download Full-text

Percutaneous Image-Guided Intracranial Surgical Tool Placement in a Simulated Brain Tumor Using Flat-Panel Cone-Beam Computed Tomography (FP-CBCT) and Digital Fluoroscopy: A Feasibility Study

Skull Base ◽

10.1055/s-2008-1093129 ◽

2008 ◽

Vol 18 (S 01) ◽

Author(s):

Beverly Aagaard-Kienitz ◽

Brian Nett ◽

Andrew Bauer ◽

Mustafa Baskaya ◽

Guang-Hong Chen

Keyword(s):

Computed Tomography ◽

Brain Tumor ◽

Feasibility Study ◽

Cone Beam Computed Tomography ◽

Cone Beam ◽

Flat Panel ◽

Digital Fluoroscopy ◽

Image Guided ◽

Surgical Tool

Download Full-text

Value of cone beam computed tomography to evaluate complication of intracranial haemorrhage in endovascular treatment (evt): a case report

Journal Of Cardiovascular, Neurovascular & Stroke ◽

10.32896/cvns.v1n1.16-18 ◽

2019 ◽

Vol 1 (1) ◽

pp. 16-18 ◽

Cited By ~ 1

Author(s):

Norafida Bahari ◽

Nik Azuan Nik Ismail ◽

Jegan Thanabalan ◽

Ahmad Sobri Muda

Keyword(s):

Computed Tomography ◽

Arteriovenous Malformation ◽

Endovascular Treatment ◽

Cone Beam Computed Tomography ◽

Diagnostic Value ◽

Cone Beam ◽

Brain Arteriovenous Malformation ◽

Embolic Materials

In this article, we evaluate the effectiveness of Cone Beam Computed Tomography, through a case study, in assessing the complication of intracranial bleeding during an endovascular treatment of brain arteriovenous malformation when compared to Multislice-Detector Computed Tomography performed immediately after the procedure. The image quality of Cone Beam Computed Tomography has enough diagnostic value in differentiating between haemorrhage, embolic materials and the arteriovenous malformation nidus to facilitate physicians to decide for further management of the patient.

Download Full-text

Value of cone beam computed tomography to evaluate complication of intracranial haemorrhage in endovascular treatment (evt): a case report.

Journal Of Cardiovascular, Neurovascular & Stroke ◽

10.32896/cvns.11.16-18 ◽

2019 ◽

pp. 16-18

Author(s):

Norafida Bahari ◽

NikAzuan Nik Ismail ◽

Jegan Thanabalan ◽

Ahmad Sobri Muda

Keyword(s):

Computed Tomography ◽

Arteriovenous Malformation ◽

Endovascular Treatment ◽

Cone Beam Computed Tomography ◽

Diagnostic Value ◽

Cone Beam ◽

Brain Arteriovenous Malformation ◽

Embolic Materials

In this article, we evaluate the effectiveness of Cone Beam Computed Tomography, through a case study, in assessing the complication of intracranial bleeding during an endovascular treatment of brain arteriovenous malformation when compared to Multislice-Detector Computed Tomography performed immediately after the procedure. The image quality of Cone Beam Computed Tomography has enough diagnostic value in differentiating between haemorrhage, embolic materials and the arteriovenous malformation nidus to facilitate physicians to decide for further management of the patient.

Download Full-text