scholarly journals Effectiveness of a Nanohydroxyapatite-Based Hydrogel on Alveolar Bone Regeneration in Post-Extraction Sockets of Dogs with Naturally Occurring Periodontitis

2021 ◽  
Vol 9 (1) ◽  
pp. 7
Author(s):  
Kittidaj Tanongpitchayes ◽  
Chamnan Randorn ◽  
Suphatchaya Lamkhao ◽  
Komsanti Chokethawai ◽  
Gobwute Rujijanagul ◽  
...  
Keyword(s):  
Bone Regeneration ◽  
Alveolar Bone ◽  
Homogeneous Distribution ◽  
Apatite Formation ◽  
Height Measurement ◽  
Socket Preservation ◽  
Severe Periodontitis ◽  
Post Operation ◽  
Bone Height

Pathological mandibular fracture after dental extraction usually occurs in dogs with moderate to severe periodontitis. A nanohydroxyapatite-based hydrogel (HAP hydrogel) was developed to diminish the limitations of hydroxyapatite for post-extraction socket preservation (PSP). However, the effect of the HAP hydrogel in dogs has still not been widely investigated. Moreover, there are few studies on PSP in dogs suffering from clinical periodontitis. The purpose of this study was to evaluate the effectiveness of the HAP hydrogel for PSP in dogs with periodontitis. In five dogs with periodontitis, the first molar (309 and 409) of each hemimandible was extracted. Consequently, all the ten sockets were filled with HAP-hydrogel. Intraoral radiography was performed on the day of operation and 2, 4, 8 and 12 weeks post operation. The Kruskal–Wallis test and paired t-test were adopted for alveolar bone regeneration analysis. The results demonstrated that the radiographic grading, bone height measurement, and bone regeneration analysis were positively significant at all follow-up times compared to the day of operation. Moreover, the scanning electron microscopy with energy-dispersive X-ray spectroscopy imaging after immersion showed a homogeneous distribution of apatite formation on the hydrogel surface. Our investigation suggested that the HAP hydrogel effectively enhances socket regeneration in dogs with periodontitis and can be applied as a bone substitute for PSP in veterinary dentistry.

Continuous Periosteal Strapping Sutures for Stabilization of Osseous Grafts With Resorbable Membranes for Buccal Ridge Augmentation: A Technique Report

2017 ◽  
Vol 43 (4) ◽  
pp. 283-290 ◽  
Author(s):  
Tamir H Shalev ◽  
Gregori M Kurtzman ◽  
Alon H Shalev ◽  
Deborah K Johnson ◽  
Mark Elias M Kersten
Keyword(s):  
Bone Loss ◽  
Tooth Loss ◽  
Alveolar Bone ◽  
Effective Means ◽  
Alveolar Bone Loss ◽  
Socket Preservation ◽  
Ridge Structure ◽  
Ridge Augmentation ◽  
Novel Technique ◽  
Bone Height

Alveolar bone loss occurs after extraction with loss of a premolar or anterior tooth; the residual supporting alveolar bone loss averages 1.53 mm of crestal bone height and 3.87 mm of buccolingual width, with most of the bone loss occurring at the facial plate. Socket preservation does not completely preserve the original ridge contours but can be an effective means of reducing bone loss following extraction. Attempts to rebuild the alveolar ridge structure after tooth loss often employ the concept of guided bone regeneration, a technique-sensitive procedure that routinely involves placement of particulate bone with or without fixation screws and either a resorbable or a nonresorbable membrane. We present a novel technique for stabilizing a resorbable membrane and underlying particulate graft allowing for predictable bone grafting across multiple edentulous sites.

scholarly journals Root Submergence Technique: Forgotten Terrain Revisited

2018 ◽  
Vol 2 (2) ◽  
pp. 73-75
Author(s):  
Rejina Shrestha ◽  
Shaili Pradhan ◽  
Ranjita Shrestha Gorkhali ◽  
Anand Verma
Keyword(s):  
Soft Tissue ◽  
Bone Resorption ◽  
Tooth Extraction ◽  
Alveolar Bone ◽  
Soft Tissue Augmentation ◽  
Alveolar Ridge ◽  
Socket Preservation ◽  
Intact Bone ◽  
And Function

The resorption of the alveolar ridge is an inevitable phenomenon after tooth extraction and continues throughout the lifespan of an individual. Socket preservation, hard and soft tissue augmentation procedures are indicated to compensate alveolar bone resorption. Compensation can also be done by masking with acrylic flanges, pink porcelain and gingival veneers. However, procedures to preserve the bone anticipatory to the loss after extraction should be prioritised. This paper reports a case of fractured non-vital tooth where root submergence technique was done. A follow-up at 6 months presents intact bone aiding in the aesthetics and function of the prosthesis.

Five Years Clinical Follow Up Bone Regeneration with CaP Bioceramics

2007 ◽  
Vol 361-363 ◽  
pp. 1339-1342 ◽  
Author(s):  
Clemencia Rodríguez ◽  
Alain Jean ◽  
Sylvia Mitja ◽  
G. Daculsi
Keyword(s):  
Calcium Phosphate ◽  
Bone Regeneration ◽  
Biphasic Calcium Phosphate ◽  
Tooth Extraction ◽  
Alveolar Bone ◽  
Bone Ingrowth ◽  
X Ray ◽  
Dental Implantation ◽  
Preventive Method

To overcome autograft use for dental implantation, it is important to prevent bone loss after tooth extraction or to restore alveolar bone level after pathological diseases. Biphasic calcium phosphate (BCP), mixture of HA and ß-TCP, have proven its performance in orthopaedic, while few studies have been reported in dentistry. We reported 5 years clinical follow up on bone regeneration after immediate dental root filling. MBCP 60/40 and MBCP 20/80 are biphasic CaP intimate mixture of HA/TCP 60/40 and 20/80; with interconnected macroporosity and microporosity. Forty cases have been distributed in two groups for alveolar pocket filling. Seven cases without filling are used as control. X-Ray at 0, 3, 6, 12 months and 5 years follow up for some patients were performed. In all the 40 cases, radio-opacity of the implantation area decreases on time, indicating resorption and bone ingrowths at the expense of the two bioceramics. No difference in the resorption kinetics appeared on X-Ray. After 1 year, the implantation area looks as physiological bone and is maintained on time. The newly formed bone is preserved after 5 years contrarily to the controls cases (without filling)where we observed decrease of 2 to 5 mm. This study demonstrated that immediate filling of alveolar pocket after tooth extraction is a preventive method of the jaw bone resorption. After long term (other one year) resorption and bone ingrowth were demonstrated for both micro and macroporous biphasic calcium phosphate with two different HA/TCP ratio.

Long-term follow-up of dental implants placed in a grafted alveolar cleft: evaluation of alveolar bone height

2008 ◽  
Vol 105 (3) ◽  
pp. 297-302 ◽  
Author(s):  
Tetsu Takahashi ◽  
Tetsuji Inai ◽  
Shoko Kochi ◽  
Masayuki Fukuda ◽  
Tai Yamaguchi ◽  
...  
Keyword(s):  
Dental Implants ◽  
Alveolar Bone ◽  
Alveolar Cleft ◽  
Long Term Follow Up ◽  
Bone Height

scholarly journals Prevention of Bone Resorption by HA/β-TCP + Collagen Composite after Tooth Extraction: A Case Series

2019 ◽  
Vol 16 (23) ◽  
pp. 4616
Author(s):  
Hsi Kuei Lin ◽  
Yu Hwa Pan ◽  
Eisner Salamanca ◽  
Yu Te Lin ◽  
Wei Jen Chang
Keyword(s):  
Tooth Extraction ◽  
Alveolar Bone ◽  
Extraction Procedure ◽  
Case Series ◽  
Alveolar Ridge ◽  
Socket Preservation ◽  
Bone Width ◽  
Width Reduction ◽  
Collagen Graft

After tooth extraction, alveolar ridge loss due to resorption is almost inevitable. Most of this bone loss occurs during the first six months after the extraction procedure. Many studies have indicated that applying socket-filling biomaterials after extraction can effectively reduce the resorption rate of the alveolar ridge. The purpose of this study was to investigate the clinical efficacy of the application of a hydroxyapatite/β-tricalcium plus collagen (HA/β-TCP + collagen) dental bone graft in dental sockets immediately after tooth extraction, so as to prevent socket resorption. The study was conducted on 57 extraction sockets located in the mandible and maxilla posterior regions in 51 patients. HA/β-TCP + collagen was inserted into all of the dental sockets immediately after extraction, and was covered with a flap. Follow-up was performed for three months after extraction, using radiographs and stents for the vertical and horizontal alveolar ridge measurements. A minimal alveolar bone width reduction of 1.03 ± 2.43 mm (p < 0.05) was observed. The height reduction showed a slight decrease to 0.62 ± 1.46 mm (p < 0.05). Radiographically, the bone height was maintained after three months, indicating a good HA/β-TCP + collagen graft performance in preserving alveolar bone. In conclusion, the HA/β-TCP + collagen graft demonstrated adequate safety and efficacy in dental socket preservation following tooth extraction.

scholarly journals Study of Immediate Implants Placed in Mandibular Alveolar Bone Reconstructed with Screw-Guided Bone Regeneration Technique: A 24-Months Follow-Up

2021 ◽  
Vol 11 (13) ◽  
pp. 6054
Author(s):  
Bianca Török ◽  
Roland Török ◽  
David M. Dohan Dohan Ehrenfest ◽  
Doriana Agop-Forna ◽  
Cristina Dascălu ◽  
...  
Keyword(s):  
Survival Rate ◽  
Bone Regeneration ◽  
Success Rate ◽  
Alveolar Bone ◽  
Guided Bone Regeneration ◽  
Control Group ◽  
Probing Depth ◽  
Immediate Implants ◽  
Keratinized Mucosa

Aim: Study aimed to test whether implants inserted in posterior mandible sites augmented with screw-guided bone regeneration (S-GBR) technique differ from implants placed in non-grafted sites regarding the success and survival rate. Materials and Methods: 20 edentulous patients (mean age 59.45 ± 15.220) were divided in a test group (S-GBR) (immediate implants placed simultaneously with grafting procedures) and control group (implants placed in naturally healed sites). Primary outcomes (implants success; implants survival) and secondary outcomes (clinical parameters of soft tissues: mPI; mGI; probing depth; keratinized mucosa; marginal-bone-level) were evaluated at 24-months follow-up. Results: Plaque levels were higher (p = 0.046) in S-GBR group (0.97 ± 0.882 mm) when compared with control (0.66 ± 0.695 mm). Keratinized mucosa width was higher in S-GBR group (4.13 ± 1.033 mm) than control (3.34 ± 0.821 mm) (p = 0.000) Probing depth (PD) width was higher in S-GBR group (3.50 ± 1.372 mm) than control (2.56 ± 1.332 mm) (p = 0.000). mGI was higher among implants placed in S-GBR group (0.90 ± 1.020 mm) than control (0.56 ± 0.794 mm) (p = 0.061). The difference between the average bone loss (MBL) for implants placed in grafted sites (Group S-GBR: 2.20 ± 1.867 mm) and for those placed in naturally healed sites (Group B: 1.09 ± 1.678 mm) was statistically significant (p = 0.000). The overall implant success rate after 24-month follow-up was 76.7% in S-GBR group and 90.6% in control group (p = 0.001). The survival rate after 24-month follow-up was 86.7% in S-GBR group and 93.8% in control group (p = 0.182). The reconstruction of the alveolar bone using S-GBR technique and immediate implant placement is a valid guided bone regeneration strategy for mandibular alveolar bone with severe horizontal resorption. The choice of S-GBR technique should be based on specific indications as implants placed in grafted sites recorded worse marginal success rate, survival rate and bone resorption than those placed in non-grafted sites.

scholarly journals Vestibular Alveolar bone height measurement: Accuracy and Correlation between direct and indirect techniques.

2020 ◽  
Vol 33 (1) ◽  
pp. 22-26
Author(s):  
Guillermo Pérez-Sánchez ◽  
Maykel González-Torres ◽  
Mario Guzmán-Espinosa ◽  
Víctor Hernández-Vidal ◽  
Bernardo Teutle-Coyotecatl ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Correlation Coefficient ◽  
Cone Beam Computed Tomography ◽  
Alveolar Bone ◽  
Pearson Correlation ◽  
Intraclass Correlation ◽  
Cone Beam ◽  
Height Measurement ◽  
Direct Measurements ◽  
Bone Height

Cone Beam Computed Tomography (CBCT) has modified the perspective of dentistry images, providing manipulable threedimensional images with a 1:1 patient:image ratio. Treatments and diagnosis are modified or corroborated by CBCT; however, its accuracy in thin structures such as cortical bone has been subjected to critical review. The aim of this study is to correlate the measurement of vestibular alveolar bone height using direct measurements and measurements performed with cone-beam tomographic images with standard (SD) voxel resolution. Thirty incisor and premolar teeth of patients undergoing open curettage were measured with a high-precision caliper and with Cone Beam Computed Tomography (CBCT) at an SD resolution of 0.16 mm voxels in a 3D Orthophos XG Sirona scanner. Intra-observer evaluation was performed using the intraclass correlation coefficient (ICC). Direct measurements and CBCT measurements were correlated using Pearson correlation (PCC). The mean difference between indirect and direct measurements was 3.15 mm. Paired t test and Pearson Correlation coefficient determined that all measurements differed statistically from each other with p<0.05. With the CT scanner and protocol used in this study, CBCT images do not enable accurate evaluation of vestibular alveolar bone height

Secondary Alveolar Bone Grafting in Patients Born With Unilateral Cleft Lip and Palate

2017 ◽  
Vol 55 (2) ◽  
pp. 173-179
Author(s):  
Fatemeh Jabbari ◽  
Laila Wiklander ◽  
Erika Reiser ◽  
Andreas Thor ◽  
Malin Hakelius ◽  
...  
Keyword(s):  
Bone Grafting ◽  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Alveolar Bone ◽  
Dental Restoration ◽  
Dental Restorations ◽  
Alveolar Bone Grafting ◽  
Secondary Alveolar Bone Grafting ◽  
Bone Height

Objective: To identify factors of oral health important for the final outcome, after secondary alveolar bone grafting in patients born with unilateral cleft lip and palate and compare occlusal radiographs with cone beam computed tomography (CBCT) in assessment of alveolar bone height. Design: Observational follow-up study. Setting: Cleft Lip and Palate Team, Craniofacial Center, Uppsala University Hospital, Sweden. Patients: 40 nonsyndromic, Caucasian patients with unilateral complete cleft lip and palate. Interventions: Clinical examination, CBCT, and occlusal radiographs. Main Outcome Measurements: Alveolar bone height was evaluated according to Bergland index at a 20-year follow-up. Results: The alveolar bone height in the cleft area was significantly reduced compared to a previously reported 10-year follow-up in the same cohort by total ( P = .045) and by subgroup with dental restoration ( P = .0078). This was positively correlated with the gingival bleeding index (GBI) ( r = 0.51, P = .0008) and presence of dental restorations in the cleft area ( r = 0.45, P = .0170). There was no difference in the Bergland index generated from scoring the alveolar bone height on occlusal radiographs as with the equivalent index on CBCT. Conclusion: Patients rehabilitated with complex dental restoration seems to be at higher risk for progression of bone loss in the cleft area. Supportive periodontal therapy should be implemented after complex dental restorations in cleft patients. Conventional occlusal radiographs provide an adequate image for evaluating postoperative bone height in clinical follow-up.

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