scholarly journals Histomorphometric and Clinical Analysis of Ridge Preservation Procedures in Extraction Sockets with Buccal Bone Defects (>5mm) Using an In Situ Hardening Biphasic Calcium Phosphate (HA/β-TCP) Graft and a Bioresorbable Matrix: A Human Study at 6 Months

2020 ◽  
Vol 10 (9) ◽  
pp. 3034
Author(s):  
Fortunato Alfonsi ◽  
Niccolò Baldi ◽  
Stefano Romeggio ◽  
Paolo Tonelli ◽  
Giovanna Iezzi ◽  
...  
Keyword(s):  
Cohort Study ◽  
Calcium Phosphate ◽  
Bone Loss ◽  
Biphasic Calcium Phosphate ◽  
Clinical Analysis ◽  
Poly Lactic Acid ◽  
P Value ◽  
Ridge Preservation ◽  
Alveolar Ridge ◽  
Extraction Socket

Many biomaterials have been proposed for ridge preservation techniques to counteract fresh extraction socket resorption. The primary aim of this prospective single cohort study was to evaluate the histomorphometric outcomes of a synthetic biphasic calcium phosphate (60% HA/40% β-TCP) and a synthetic poly-lactic acid membrane, used to graft fresh extraction socket sites with a full or partial (>5mm) resorption of the buccal bone plate. Patients recruited were treated at one esthetic site with a ridge preservation procedure to receive an implant-supported prosthesis. After 6 months of healing, a bone biopsy was harvested. Outcome evaluations were: biological complications, histomorphometrical analysis, and alveolar horizontal and vertical bone loss (ΔAHB, ΔAVB). Thirteen subjects were included in this study. Two cases of biological complication were recorded. All 13 patients received implant insertion. From histomorphometric analysis, a mean of 48.9 ± 11.9%, 29.0 ± 9.3%, and 22.0 ± 9.7% was recorded for soft tissues, new bone, and residual graft particles, respectively. From clinical analysis, a mean of 0.5 ± 1.0 mm (p-value < 0.05) and 0.9 ± 1.3 mm (p-value < 0.05) was recorded for alveolar horizontal and vertical bone loss, respectively. In conclusion, this prospective cohort study showed encouraging results in preserving alveolar ridge dimension. A moderate percentage of new bone and an acceptable alveolar ridge loss were achieved at a 6 month follow-up.

scholarly journals Calcium Phosphate Modified with Silicon vs. Bovine Hydroxyapatite for Alveolar Ridge Preservation: Densitometric Evaluation, Morphological Changes and Histomorphometric Study

Materials ◽  
2021 ◽  
Vol 14 (4) ◽  
pp. 940
Author(s):  
Guillermo Cadenas-Vacas ◽  
Natalia Martínez-Rodríguez ◽  
Cristina Barona-Dorado ◽  
Luis Sánchez-Labrador ◽  
Jorge Cortés-Bretón Brinkmann ◽  
...  
Keyword(s):  
Calcium Phosphate ◽  
Bone Density ◽  
Bone Loss ◽  
Alveolar Bone ◽  
Morphological Changes ◽  
Test Group ◽  
Control Group ◽  
Ridge Preservation ◽  
Alveolar Ridge ◽  
Alveolar Ridge Preservation

After tooth extraction, the alveolar bone undergoes a physiological resorption that may compromise the future placement of the implant in its ideal position. This study evaluated bone density, morphological changes, and histomorphometric results undergone by alveolar bone after applying a new biomaterial composed of calcium phosphate modified with silicon (CAPO-Si) compared with hydroxyapatite of bovine origin (BHA). Alveolar ridge preservation (ARP) was performed in 24 alveoli, divided into a test group filled with CAPO-Si and a control group filled with BHA. Three months later, the mineral bone density obtained by the biomaterials, horizontal and vertical bone loss, the degree of alveolar corticalization, and histomorphometric results were evaluated. Both biomaterials presented similar behavior in terms of densitometric results, vertical bone loss, and degree of alveolar corticalization. Alveoli treated with CAPO-Si showed less horizontal bone loss in comparison with alveoli treated with BHA (0.99 ± 0.2 mm vs. 1.3 ± 0.3 mm), with statistically significant difference (p = 0.017). Histomorphometric results showed greater bone neoformation in the test group than the control group (23 ± 15% vs. 11 ± 7%) (p = 0.039) and less residual biomaterial (5 ± 10% vs. 17 ± 13%) (p = 0.043) with statistically significant differences. In conclusion, the ARP technique obtains better results with CAPO-Si than with BHA.

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 Retrospective radiographic and clinical analysis of implant survival placed after alveolar ridge preservation

2018 ◽  
Vol 34 (3) ◽  
pp. 167-174
Author(s):  
Sung-Jo Lee ◽  
Hyun Jang ◽  
Hyun-Seung Shin ◽  
Jung-Chul Park ◽  
Young-Gyun Song ◽  
...  
Keyword(s):  
Clinical Analysis ◽  
Ridge Preservation ◽  
Alveolar Ridge ◽  
Implant Survival ◽  
Alveolar Ridge Preservation

scholarly journals Open Healing: A Minimally Invasive Protocol with Flapless Ridge Preservation in Implant Patients

Biology ◽  
2022 ◽  
Vol 11 (1) ◽  
pp. 142
Author(s):  
Alecsandru Ionescu ◽  
Aliona Dodi ◽  
Lucian Cristian Petcu ◽  
Mihnea Ioan Nicolescu
Keyword(s):  
Survival Rate ◽  
Minimally Invasive ◽  
Alveolar Bone ◽  
Tissue Level ◽  
Ridge Preservation ◽  
Bovine Bone ◽  
Alveolar Ridge ◽  
Extraction Socket ◽  
Atraumatic Extraction

We aimed to validate the safety and efficacy of the minimally invasive “open healing” flapless technique for post-extraction socket and alveolar ridge preservation, while assessing the alveolar bone changes. The study enrolled (n = 104) patients (0.55 sex ratio), with atraumatic extraction of (N = 135) hopeless teeth, followed by either immediate placement of tissue level implants (N1 = 26), or later stage implant insertion (N2 = 109). No flap was raised in either situation. Post-extraction sockets were filled with deproteinized bovine bone granules and covered by collagen resorbable membrane—left purposely exposed during healing. This yielded an uneventful healing, with sufficient bone formation, while avoiding soft-tissue problems. The need for additional augmentation was assessed clinically and by calibrated CBCT scans at six months, before either loading (N1) or implant insertion (N2). Implant success and survival rate were evaluated at 12-, 24-, and 60-month follow-up control sessions. The inserted implants had a survival rate of 98.5% and a success rate of 94.8% at five-year follow-up. Open healing technique with flapless approach can be favorable for preserving the 3D architecture of the post-extraction socket, as well as the alveolar ridge width and height.

scholarly journals Alveolar Ridge Preservation of an Extraction Socket of Fractured Maxillary Lateral Incisor

2016 ◽  
Vol 05 (01) ◽  
pp. 19-24
Author(s):  
Hasan Ayberk Altug ◽  
Abdullah Tugrul Coskun ◽  
Aydın Ozkan ◽  
Tamer Zerener ◽  
Metin Sencimen
Keyword(s):  
Lateral Incisor ◽  
Ridge Preservation ◽  
Alveolar Ridge ◽  
Extraction Socket ◽  
Alveolar Ridge Preservation ◽  
Maxillary Lateral Incisor

scholarly journals Ridge Augmentation Using β-Tricalcium Phosphate and Biphasic Calcium Phosphate Sphere with Collagen Membrane in Chronic Pathologic Extraction Sockets with Dehiscence Defect: A Pilot Study in Beagle Dogs

Materials ◽  
2020 ◽  
Vol 13 (6) ◽  
pp. 1452
Author(s):  
Jungwon Lee ◽  
Yong-Moo Lee ◽  
Young-Jun Lim ◽  
Bongju Kim
Keyword(s):  
Calcium Phosphate ◽  
Tricalcium Phosphate ◽  
Biphasic Calcium Phosphate ◽  
Control Group ◽  
Collagen Membrane ◽  
Ridge Preservation ◽  
Micro Computed Tomography ◽  
Spontaneous Healing ◽  
Ridge Augmentation ◽  
Dehiscence Defect

This study was conducted to comparatively examine spontaneous healing versus ridge augmentation, in surgically-created dehiscence defects, associated with chronic pathology in dogs. Mandibular second, third and fourth premolars (P2, P3 and P4) were hemi-sectioned, and a dehiscence defect was created at the mesial root, while a groove was made on the buccal area from the top of the teeth to the bottom of the defect, exposing the dental pulp. The mesial roots of P2, P3 and P4 were extracted 1 month after the induction of the dehiscence defect with chronic pathology. Three teeth were randomly allocated to these experimental groups: (i) spontaneous healing without any bone graft (Control group: C); (ii) ridge augmentation with β-tricalcium phosphate (β-TCP) granules (Test 1 group: T1); and (iii) ridge augmentation with 60% hydroxyapatite (HA) and 40% β-TCP microspheres (Test 2 group: T2). Postmortem histopathologic examination showed significant between-group differences in C and T1 and C and T2 in bone volume/tissue volume in qualitative micro-computed tomography (CT) analysis, as well as significant intergroup differences in the coronal area at 4 and 12 weeks. The composition of connective tissue and mineralized bone in C and T1 were higher than in T2 at 4 weeks of healing, whereas the composition of mineralized bone was higher in T2 than in T1 at 12 weeks of healing. Biphasic calcium phosphate, composed of 60% HA and 40% β-TCP microsphere (i) potentially prevented marked osteoclastic resorption and (ii) promoted ridge preservation in the extraction socket with the dehiscence defect and chronic pathology.

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