scholarly journals Bone Loss around Dental Implants 5 Years after Implantation of Biphasic Calcium Phosphate (HAp/βTCP) Granules

2018 ◽  
Vol 2018 ◽  
pp. 1-7 ◽  
Author(s):  
Vadims Klimecs ◽  
Alexanders Grishulonoks ◽  
Ilze Salma ◽  
Laura Neimane ◽  
Janis Locs ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Calcium Phosphate ◽  
Bone Loss ◽  
Dental Implants ◽  
Biphasic Calcium Phosphate ◽  
Alveolar Bone ◽  
Clinical Situation ◽  
Cone Beam ◽  
Calcium Phosphate Ceramic ◽  
Middle Point

Biphasic calcium phosphate ceramic granules (0.5–1.0 mm) with a hydroxyapatite and β-tricalcium phosphate ratio of 90/10 were used. Biphasic calcium phosphate ceramic granules produced in the Riga Technical University, Riga Rudolph Cimdins Biomaterials Innovation and Development Centre, were used for filling the bone loss on 18 patients with peri-implantitis. After 5 years at the minimum, clinical and 3D cone-beam computed tomography control was done. Clinical situation confirmed good stability of implants without any signs of inflammation around. Radiodensity of the previous gap and alveolar bone horizontally from middle point of dental implants showed similar radiodensity as in normal alveolar bone. This trial is registered with ISRCTN13514478.

scholarly journals Cone Beam Computed Tomography Used in the Assessment of the Alveolar Bone in Periodontitis

2016 ◽  
Vol 12 (27) ◽  
pp. 47 ◽  
Author(s):  
Alexandra Mihaela Stoica ◽  
Monica Monea ◽  
Ramona Vlad ◽  
Dragos Dan Sita ◽  
Mircea Buruian
Keyword(s):  
Computed Tomography ◽  
Bone Loss ◽  
Cone Beam Computed Tomography ◽  
Alveolar Bone ◽  
Correct Diagnosis ◽  
Alveolar Bone Loss ◽  
Cone Beam ◽  
Radiographic Evaluation ◽  
Intraoral Radiography ◽  
Pocket Depth

Objectives: The aim of our study was to highlight the advantages of using Cone Beam Computed Tomography in the study of the extent of the alveolar bone loss, compared to the conventional intraoral radiography and to prove the boon of the CBCT scans for establishing the correct periodontal diagnosis. Material and methods: A total of 16 patients with age between 35-55 years old, and a minimum of 8 teeth per dental arcade, presenting peridontal clinical symptomatology were selected. We used a custom periodontal chart that included the measuring of the gingival recession and the pocket depth in 6 points for 16 teeth, 8 maxillary teeth and 8 mandibulary teeth in all cases. For the radiographic evaluation we used CBCT imaging and intraoral radiography. Results: CBCT scans offers the possibilities of measuring with accuracy the alveolar bone loss on mesial, distal vestibular and oral sides. It provides images with the exact position of the bone and also the expediency to assess the correct diagnosis. Retroalveolar radiography offers just a hint of the possible position of the alveaolar bone in all cases the anatomical details were offered by CBCT. Conclusions: A correct periodontal diagnosis using conventional radiography is not possible because of the superimposition of the anatomical structures. The importance of CBCT imaging is no longer disputed, at the present time it is the best radiographic investigation available.

scholarly journals Volumetric evaluation of root resorption on the upper incisors using cone beam computed tomography after 1 year of orthodontic treatment in adult patients with marginal bone loss

2018 ◽  
Vol 88 (6) ◽  
pp. 710-718 ◽  
Author(s):  
Pornputthi Puttaravuttiporn ◽  
Mutita Wongsuwanlert ◽  
Chairat Charoemratrote ◽  
Chidchanok Leethanakul
Keyword(s):  
Computed Tomography ◽  
Bone Loss ◽  
Cone Beam Computed Tomography ◽  
Orthodontic Treatment ◽  
Alveolar Bone ◽  
Tooth Movement ◽  
Root Resorption ◽  
Cone Beam ◽  
Volume Loss ◽  
Root Volume

ABSTRACTObjectives:To determine upper incisor root resorption, volume loss, and the relationship between root volume loss and tooth movement after 1 year of orthodontic treatment in patients with marginal bone loss.Materials and Methods:A total of 30 women (46.3 ± 5.4 years old) with moderate upper incisor bone loss who required intrusion during orthodontic treatment were recruited. Pre- and post-treatment cone beam computed tomography images were reconstructed. Upper incisors at pre- and post-treatment were superimposed; labio- and palato-apical, middle, and coronal third root volumes were assessed. Tooth movement and alveolar bone height were measured from lateral cephalometric radiographs and cone beam computed tomography. Changes in root volume/alveolar bone height were compared using paired-sample t-tests, percentage root volume loss for each tooth/segment was evaluated by one-way analysis of variance, and the relationship between percentage root loss and degree of tooth movement was assessed by linear regression.Results:Mean root volume significantly decreased on the labio- and palato-apical aspects of 12 and labio-apical aspects of 21 and 22 (P ≤ .024). Palato-apical segment volume loss was greater on lateral than central incisors (P ≤ .016). Two-dimensional root length and cementoenamel junction-bone crest distance did not change between T0 and T1, with no significant relationship between tooth movement amount and percentage root volume loss.Conclusions:Delivery of 40 g intrusive force to the four upper incisors using a T-loop and the leveling phase lead to more apical root volume loss on lateral than central incisors. There was no relationship between extent of tooth movement and upper incisor root volume loss.

scholarly journals Using Cone-Beam Computed Tomography to Assess Changes in Alveolar Bone Width around Dental Implants at Native and Reconstructed Bone Sites: A Retrospective Cohort Study

2021 ◽  
Vol 11 (10) ◽  
pp. 1011
Author(s):  
Kai-Fang Hu ◽  
Szu-Wei Lin ◽  
Ying-Chu Lin ◽  
Jiiang-Huei Jeng ◽  
Yu-Ting Huang ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Dental Implants ◽  
Cone Beam Computed Tomography ◽  
Alveolar Bone ◽  
Cone Beam ◽  
P Value ◽  
Implant Surgery ◽  
Native Bone ◽  
Bone Width ◽  
Before And After

The aim of this study was to use a cone-beam computed tomography (CBCT) to assess changes in alveolar bone width around dental implants at native and reconstructed bone sites before and after implant surgery. A total of 99 implant sites from 54 patients with at least two CBCT scans before and after implant surgery during 2010–2019 were assessed in this study. Demographic data, dental treatments and CBCT scans were collected. Horizontal alveolar bone widths around implants at three levels (subcrestal width 1 mm (CW1), subcrestal width 4 mm (CW4), and subcrestal width 7 mm (CW7)) were measured. A p-value of < 0.05 indicated statistically significant differences. The initial bone widths (mean ± standard deviation (SD)) at CW1, CW4, and CW7 were 6.98 ± 2.24, 9.97 ± 2.64, and 11.33 ± 3.00 mm, respectively, and the postsurgery widths were 6.83 ± 2.02, 9.58 ± 2.55, and 11.19 ± 2.90 mm, respectively. The change in bone width was 0.15 ± 1.74 mm at CW1, 0.39 ± 1.12 mm at CW4 (p = 0.0008), and 0.14 ± 1.05 mm at CW7. A statistically significant change in bone width was observed at only the CW4 level. Compared with those at the native bone sites, the changes in bone width around implants at reconstructed sites did not differ significantly. A significant alveolar bone width resorption was found only at the middle third on CBCT scans. No significant changes in bone width around implants were detected between native and reconstructed bone sites.

Biphasic Calcium Phosphate Microparticles Mixed With Autologous Blood: Application for the Reconstruction of a Large Mandibular Bone Defect in a Dog

2021 ◽  
pp. 089875642199090
Author(s):  
Nicolas Girard ◽  
Edouard R. J. Cauvin ◽  
Olivier Gauthier ◽  
Simon Gault
Keyword(s):  
Computed Tomography ◽  
Case Report ◽  
Calcium Phosphate ◽  
Bone Regeneration ◽  
Cone Beam Computed Tomography ◽  
Biphasic Calcium Phosphate ◽  
Cone Beam ◽  
Bone Density Measurement ◽  
Radiographic Evidence ◽  
Mandibular Bone

Large mandibular bone defects can be difficult to treat in dogs, with a high risk of mal or nonunion due to instability and risk of infection. This case report describes the use of autologous clotted blood mixed with biphasic calcium phosphate microparticles to fill a defect in a nonunion fracture and promote bone regeneration in a dog using a 2-stage surgical approach. This new method was designed and tried in a dog with a chronic, unstable mandibular fracture associated with a large sequestrum. Initial treatment involved debridement of the lesion, then the oral wound and oral vestibule were reconstructed in 2 layers. Four weeks later a second stage surgery allowed placement of a pre-contoured maxillofacial plate to bridge the defect, which was filled with a blood/biphasic calcium phosphate compound implant. Cone-beam computed tomography was used prior to the initial surgery for preoperative planning and 3-D printing of a mandibular template for plate contouring. CT was subsequently used to document the healing process, using a bone density measurement tool to assess bone regeneration. Radiographic evidence suggestive of osseointegration was observed within 6 months with effective filling of the defect and restoration of alveolar ridge continuity. A return to normal and atraumatic occlusion was considered excellent. Cone-beam computed tomography was found useful to document radiographic evidence of osseointegration, bone regrowth and remodeling. This case report is to serve as a proof-of-concept study and should be followed by a prospective evaluation.

scholarly journals The measurement of the alveolar bone crest in aggressive periodontitis using Cone Beam Computed Tomography imaging

2012 ◽  
Vol 24 (1) ◽  
Author(s):  
Astia Dwiputri Lestari ◽  
Azhari Azhari ◽  
Sri Wendari
Keyword(s):  
Computed Tomography ◽  
Bone Loss ◽  
Cone Beam Computed Tomography ◽  
Alveolar Bone ◽  
Aggressive Periodontitis ◽  
Cone Beam ◽  
Average Height ◽  
Computed Tomography Imaging ◽  
Second Molar ◽  
Coronal View

The normal alveolar bone crest located at a distance of 1 to 2 mm from CEJ towards the apical. If there is a bone loss, the alveolar bone crest located at 2 mm more to the apical from CEJ. The alveolar bone loss is one characteristic of aggressive periodontitis and the onset of the disease at the age of puberty. The purpose of this research was to know and to assess the height of alveolar bone crest using Cone Beam Computed Tomography (CBCT) in patients with aggressive periodontitis. The type of this research was descriptive. A total of 317 sample CBCT imagery from 6 aggressive periodontitis patients. The result of this research showed that average height of alveolar bone crest second premolar distal, the first molar mesial, first molar distal and second molar mesial on the first region were 3 mm, 4.2 mm, 6.1 mm, and 4.8 mm respectively. On the second region were 3.2 mm, 3.6 mm, 3.6 mm, and 3.4 mm respectively, and in the third region were 2.4 mm, 2.8 mm, 2.5 mm dan 1.4 mm consecutively. While in the fourth region were 2.9 mm, 3 mm, 2.8 mm, and 2.3 mm respectively. The average height of alveolar bone crest of aggressive periodontitis was 3.8 mm. Slicing CBCT imagery on coronal view for the anterior region and sagittal view for the posterior region, showed the characteristic of height alveolar bone crest was arch-shaped which showed the different height of alveolar bone crest of the second premolar distal until second molar mesial.

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