Percorrer por autor "Salviano, Saulo Henrique"
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- Digital planning for immediate implants in anterior esthetic area: immediate result and follow-up after 3 years of clinical outcome - case reportPublication . Salviano, Saulo Henrique; Lopes, João Carlos Amorim; Silva Brum, Igor da; Machado, Kelly; Pedrazzi, Marco Tulio; Carvalho, Jorge José deIn this case report, we demonstrate how the correct positioning of implants, associated with optimal gingival conditioning, and the correct choice of biomaterial can yield very predictable and fantastic aesthetic results. Objective: We aimed to use dental implants to rehabilitate the area of elements #11 and #21 in a satisfactory surgical and prosthetic manner, using guided surgery, connective tissue, nano-biomaterials, and a porcelain prosthesis. Case Report: A 32-year-old male patient presented with bone loss of elements #11 and #21, which was proven radiographically and clinically. Thus, oral rehabilitation with the use of dental implants was required. It was decided to proceed via digital planning with the DSD program (Digital smile design) and with the software Exoplan, (Smart Dent-Germany) whenever it was possible to plan immediate provisional and accurate dental implant positioning through reverse diagnostics (Software Exoplan, Smart Dent-German). The dental elements were extracted atraumatically; then, a guide was established, the implants were positioned, the prosthetic components were placed, the conjunctive tissue was removed from the palate and redirected to the vestibular wall of the implants, the nano-graft (Blue Bone®) was conditioned in the gaps between the vestibular wall and the implants, and, finally, the cemented provision was installed. Results: After a 5-month accompaniment, an excellent remodeling of the tissues had been achieved by the implants; consequently, the final prosthetic stage could begin, which also achieved a remarkable aesthetic result. Conclusions: This report demonstrates that the correct planning of dental implants, which is associated with appropriate soft tissue and bone manipulation, allows for the achievement of admirable clinical results.
- Histological and immunohistochemical analysis of a nanobiomaterial in a maxillary sinus lift surgery: a case reportPublication . Lopes, João Carlos Amorim; Salviano, Saulo Henrique; Lins, Consuelo Antunes Barreto; Devita, Renan Lana; Brum, Igor da Silva; Fernandes, Gustavo Vicentis de OliveiraThe objective of this study was to histologically and immunologically analyze the level of bone substitution and the presence of new blood vessels in a nanobiomaterial composed of hydroxyapatite and BTCP in a maxillary sinus lift surgery. A case of a maxillary sinus lift was investigated. The patient had a 1.0 mm bone remnant on the left side and 2 grams of nanobiomaterial (80% hydroxyapatite and 20% β-tricalcium phosphate) were grafted into the pneumatized sinus. After 6 months, during dental implant placement surgery, grafted bone samples were collected with 4 mm trephines. These samples were sent to the laboratory for analysis where they were stained with masson'strichrome and immuno stained with osteonectin and osteopontin. After 6 months of bone regeneration a result of 14 mm of bone gain was reached, the analyzes in masson's trichrome showed an excellent gain of newly formed bone, in addition to a very high percentage of blood vessels. In the immunostaining, a very large number of osteoblasts and osteoclasts was observed, signaling an excellent osteoconduction and osteoinduction of the studied nanobiomaterial. The maxillary sinus lift surgery with nanobiomaterial provided a very favorable bone height and thickness gain, as well as the high vascularity and cellularity, which enabled the patient's oral rehabilitation with osseointegrated dental implants and permanent ceramic prostheses.
- Histomorphometric evaluation of bone-guided regeneration in maxillary sinus floor augmentation using nano-hydroxyapatite/beta-tricalcium phosphate composite biomaterial: a case reportPublication . Salviano, Saulo Henrique; Lopes, João Carlos Amorim; Brum, Igor da Silva; Frigo, Lúcio; Santos, Mário José dos; Consonni, Sílvio Roberto; Carvalho, Jorge José deBackground: The development of techniques in biomaterials design and production added to advanced surgical procedures which enabled better and more predictable clinical out-comes. Maxillary sinus floor augmentation (MSFA) is among the more studied bone-guided regeneration procedure in the literature. The MSFA could be considered the gold standard procedure for bone-guided regeneration as it provides suitable functional and aesthetic solutions to alveolar ridge atrophy due to tooth loss. Purpose: This study aimed to conduct a detailed histomorphometric evaluation of collagen production in SFAs bone-guided regeneration, using nano-hydroxyapatite/beta-tricalcium phos-phate (nano-HA/beta-TCP) composite. Patients and Methods: A 52-year-old female had the left upper second premolar con-demned due to periodontal disease, then a tooth implant replacement was planned. Due to maxillary sinus pneumatization, the MSFA had to be done before implant placement. Nano-HA/beta-TCP composite (2g) was used in the MSFA procedure. After nine months of the healing process, during the Cone Morse implant installation process, bone samples were collected for histologic analysis (sirius red, hematoxylin/eosin, polarized microscopy). Six months after implant installation, a ceramic crown was installed according to the patient's request. Results: Proper masticatory function and aesthetics were re-established. The histomorpho-metric evaluation indicated that nano-HA/beta-TCP composite did not show any area devoid of cellular activity in sirius red or hematoxylin/eosin staining and the percentage (%) of new bone collagen fibers was achieved using polarization technique evaluation. Conclusion: According to these results, nano-HA/beta-TCP composite presented clinical and histomorphometric properties suit to be used as bone-guided regeneration biomaterial in MSFA. Furthermore, nano-HA/beta-TCP composite provided a favorable nano-environment to bone cells, enhancing bone matrix production.