Abstract This split-mouth randomized controlled trial aimed to evaluate the primary and secondary stability of hybrid implants with different thread configurations and hydrophilic surfaces. Twenty patients with a partially edentulous maxilla were selected. These patients received two types of implants with the same hydrophilic surface: CTP group: Cylindrical-Tapered implant with perforating threads; CTH: Cylindrical-Tapered implant with hybrid threads configuration (perforating and condensing threads). The primary and secondary stability parameters were measured by insertion torque and resonance frequency analysis at the time of implant placement and 7, 28, 56, and 90 days after the surgical procedure. The paired t-test was used to compare the data on the implant's stability between the groups. The statistical analysis was performed with a confidence level set at 95%. It was found that the implants in the CTH group presented higher primary stability values at the time of implant placement, due to the higher ISQ (63.61 ± 9.44 vs. 40.59 ±7.46) and insertion torque (36.92 ± 16.50 Ncm vs. 28.00 ± 14.40 Ncm), than the implants in the CTP group. The CTH group presented higher ISQ values in all follow-up periods: 7 days (68.67 ± 7.60 vs. 41.55 ± 9.07), 28 days (68.61 ± 5.98 vs. 47.90 ±13.10), 56 days (74.09 ± 3.96 vs. 55.85 ± 13.18), and 90 days (75.45 ± 4.02 vs. 63.47 ± 6.92) after implant placement. Hybrid implants with perforating and condensing threads demonstrated greater stability than hybrid implants with only perforating threads. splitmouth split mouth surfaces selected surface CylindricalTapered Cylindrical Tapered . threads) 9 procedure ttest t test s groups 95 95% 63.61 6361 63 61 (63.6 944 44 9.4 vs 4059 40 59 40.5 ±7.46 746 46 36.92 3692 36 92 (36.9 1650 16 50 16.5 2800 00 28.0 1440 14 14.4 Ncm, , Ncm) followup follow up periods 68.67 6867 68 67 (68.6 760 60 7.6 4155 41 55 41.5 9.07, 907 9.07 07 9.07) 2 68.61 6861 598 5 98 5.9 4790 47 47.9 ±13.10, 1310 ±13.10 13 10 ±13.10) 74.09 7409 74 09 (74.0 396 3 96 3.9 5585 85 55.8 13.18, 1318 13.18 18 13.18) 75.45 7545 75 45 (75.4 402 4 02 4.0 6347 63.4 6.92 692 6 63.6 636 (63. 94 9. 405 40. ±7.4 36.9 369 (36. 165 1 16. 280 0 28. 144 14. 68.6 686 (68. 76 7. 415 41. 9.0 5. 479 47. 131 ±13.1 74.0 740 (74. 39 3. 558 8 55. 13.1 75.4 754 (75. 4. 634 63. 6.9 69 (63 ±7. 36. (36 68. (68 ±13. 74. (74 13. 75. (75 6. (6 ±7 (3 ±13 (7 ( ±1

Resumo O objetivo deste estudo controlado randomizado de boca dividida foi avaliar a estabilidade primária e secundária de implantes híbridos com diferentes configurações de rosca e superfícies hidrofílicas. Vinte pacientes com maxila parcialmente edêntula foram selecionados. Esses pacientes receberam dois tipos de implantes com a mesma superfície hidrofílica: Grupo CTP: Implante cilíndrico-cônico com roscas perfurantes; Grupo CTH: Implante cilíndrico-cônico com roscas perfurantes e condensadoras. Os parâmetros de estabilidade primária e secundária foram medidos por análise de torque de inserção e frequência de ressonância no momento da colocação do implante e 7, 28, 56 e 90 dias após o procedimento cirúrgico. O teste t-pareado foi utilizado para comparação dos dados de estabilidade entre os grupos. A análise estatística foi executada levando-se em consideração um nível de confiança de 95%. Constatou-se que os implantes do grupo CTH apresentaram maiores valores de estabilidade primária no momento da colocação do implante, devido ao maior ISQ (63.61 ± 9.44 vs. 40.59 ±7.46) e torque de inserção (36.92 ± 16.50 Ncm vs. 28.00 ± 14.40 Ncm), do que os implantes do grupo CTP. Implantes do grupo CTH apresentaram valores de ISQ superiores em todos os períodos de acompanhamento: 7 dias (68.67 ± 7.60 vs. 41.55 ± 9.07), 28 dias (68.61 ± 5.98 vs. 47.90 ±13.10), 56 dias (74.09 ± 3.96 vs. 55.85 ± 13.18) e 90 dias (75.45 ± 4.02 vs. 63.47 ± 6.92). Os implantes híbridos com roscas perfurantes e condensantes demonstraram maior estabilidade do que os implantes híbridos com apenas roscas perfurantes. hidrofílicas selecionados hidrofílica CTP cilíndricocônico cilíndrico cônico condensadoras 5 9 cirúrgico tpareado t pareado grupos levandose levando se 95 95% Constatouse Constatou 63.61 6361 63 61 (63.6 944 44 9.4 vs 4059 40 59 40.5 ±7.46 746 46 36.92 3692 36 92 (36.9 1650 16 50 16.5 2800 00 28.0 1440 14 14.4 Ncm, , Ncm) acompanhamento 68.67 6867 68 67 (68.6 760 60 7.6 4155 41 55 41.5 9.07, 907 9.07 07 9.07) 2 68.61 6861 598 98 5.9 4790 47 47.9 ±13.10, 1310 ±13.10 13 10 ±13.10) 74.09 7409 74 09 (74.0 396 3 96 3.9 5585 85 55.8 13.18 1318 18 75.45 7545 75 45 (75.4 402 4 02 4.0 6347 63.4 6.92. 692 6.92 . 6 6.92) 63.6 636 (63. 94 9. 405 40. ±7.4 36.9 369 (36. 165 1 16. 280 0 28. 144 14. 68.6 686 (68. 76 7. 415 41. 9.0 5. 479 47. 131 ±13.1 74.0 740 (74. 39 3. 558 8 55. 13.1 75.4 754 (75. 4. 634 63. 69 6.9 (63 ±7. 36. (36 68. (68 ±13. 74. (74 13. 75. (75 6. (6 ±7 (3 ±13 (7 ( ±1

ABSTRACT Purpose: The study showed a patient with Ectodermal Dysplasia (ED) who was treated with implants and fixed dental prosthesis by a multidisciplinary team. Case Report: Acrylic resin dental prostheses were designed as long-term provisionals, which allowed modifications when required. After imaging and treatment planning, four implants were placed in the inter-foramenal area of the mandible and 2 years later the definitive prosthesis was fitted. In a second phase, the patient received a combination of autogenous and allogeneic bone grafts in the maxilla. The autogenous graft was removed from the retro-molar region in the mandible. He also received a fixed dental prosthesis supported by 4 implants on the position of the upper canines and second pre-molars. Conclusion: Patient reports successful outcomes and despite the long treatment, patient states is confident with his appearance and speaking improvement. Follow-up was done every six months, for 10 years, and showed encouraging post-treatment outcomes.

ABSTRACT: Aim: Short implants are manufactured for use in atrophic regions of the jaw. Therefore, the current does not sufficiently reveal a direct correlation between the impact of implant length on implant survival. The purpose of this systematic review was to compile the evidence of short implant survival in atrophied jaws. Methods: Electronic and manual literature searches were performed by two independent reviewers in several databases, including MEDLINE, EMBASE, and Cochrane Oral Health Group Trials Register, for articles up to September 2015 using the following terms in some combinations: “short implant”, “mandible/atrophied jaws”, and “implant survival/ survival rate/ survival analysis”. Results: The 19 included studies present in average 5.5 years (range 1.0-20.0 years) follow-up and 96.1% (range 73.4-100.0 percent) survival rate of the short implants in atrophied mandibular. Conclusions: This systematic review found evidences regarding to safety of short implant placement in atrophied jaws although stronger evidence is essential to confirm this finding.

ABSTRACT: Background: Hyaluronic acid is a treatment option for this deficiency gingival papilla, since it aims to increase tissue volume in the region of loss of interdental papilla, minimally invasive. Aim this study was to describe the application of Hyaluronic acid in a deficient gingival papilla. Case report: Patient presented absence of interdental papilla in the maxillary arch around upper anterior teeth. A comprehensive exam was performed, plus 2D photographs taken with a professional camera coupled to a device for image standardization, and an intraoral scanning with the OMNICAM scanner. Three applications of Hyaluronic acid were performed to fill the black spaces, at an interval of four weeks. The patient was followed-up for three months, and the recovery of papilla was observed. Conclusion: The Hyaluronic acid as gingival filling material can be considered as a treatment option for augmenting interdental papilla in aesthetic area.

ABSTRACT: Considering that success of dental implants is not only related to osseointegration, but also with their survival rates, the aim of this study was to perform a literature review about bone remodeling around osseointegrated implants. A detailed search strategy was used for this, and articles published between the years 1930 and 2012 were selected. The rare data found in the literature demonstrated that implants are osseointegrated 30 days after their placement. However, active bone remodeling with osteoclasts and osteoblasts working in synchrony continues to occur. Therefore, after osseointegration, the initially formed bone, which presents characteristics of spongy bone, is gradually resorbed and replaced by compact bone after 90 days. Furthermore, other portions of bone tissue a little more distant from the interface, which establish direct contact with the implant, are also damaged during the drilling process, and therefore, they also need to be remodeled. Among the rare studies found in the literature about bone remodeling after osseointegration, there were no verified studies on the possible influence of implant surface treatments on bone remodeling that occurs after osseointegration. Only studies involving implants with machined surfaces have been conducted up to now.

Resumo Objetivo Avaliar e correlacionar os valores de densidade óssea radiográfica, altura óssea peri-implantar e de frequência de ressonância nos implantes curtos e convencionais instalados na região posterior da mandíbula após a instalação da prótese provisória. Material e método Esse estudo piloto clínico prospectivo contou com a participação de 11 pacientes que foram divididos previamente em dois grupos: implantes curtos (n=18) (5,0 x 5,5 mm e 5,0 x 7,0 mm) e implantes convencionais (n=23) (4,0 x 10 mm e 4,0 x 11,5 mm). Foram executadas análise da frequência de ressonância, altura óssea e densidade óssea peri-implantar. Os implantes foram avaliados nos períodos T0 (imediatamente após a instalação do provisório), T1 (após 90 dias) e T2 (após 180 dias). Resultado Não houve diferenças estatisticamente significativas entre os grupos com relação a densidade óssea radiográfica (152,50 ± 15,39 vs. 157,60 ± 28,46, para implantes convencionais e curtos respectivamente no período T2), estabilidade dos implantes (Implantes convencionais: 66,76 ± 10,39 no período T0 e 61,85 ± 8,38 no período T2 vs. Implantes curtos: 57,50 ± 12,17 no período T0 e 61,53 ± 7,39 no período T2) e quanto a perda óssea periimplantar (0,03 mm vs. -0,17 mm, em implantes convencionais e curtos no período T2, respectivamente). Adicionalmente a isso, não foram detectados correlação significativa entre densidade radiográfica com altura óssea peri-implantar e nem com a frequência de ressonância. Conclusão Verificou-se que os implantes curtos apresentaram um comportamento semelhante aos implantes de comprimento convencionais com relação à frequência de ressonância, a densidade radiográfica peri-implantar e a manutenção dos níveis ósseos periimplantares.

Abstract Objective To evaluate and correlate the values of radiographic bone density, peri-implant bone height and resonance frequency analysis (RFA) of short or conventional implants placed in the posterior region of the mandible after installing a prosthesis. Material and method Eleven patients were selected for this prospective parallel pilot study. The prostheses were supported by two types of implants: short implants (n = 18) (5.0 x 5.5 mm and 5.0 x 7.0 mm) and conventional implants (n = 23) (4.0 x10 mm and 4.0 x 11.5 mm). The implants were evaluated by RFA, by measuring the bone height, and peri-implant bone density. The implants were evaluated at the periods T0 (immediately after installation of the prosthesis), T1 (after 90 days), and T2 (after 180 days). Result There were no statistically significant differences between groups with respect to radiographic bone density (152.50 ± 15.39 vs. 157.60 ± 28.46, for conventional and short implants, respectively at T2), stability of the implants (Conventional implants: 66.76 ± 10.39 at T0, and 61.85 ± 8.38 at T2 vs. Short implants: 57.50 ± 12.17 at T0, and 61.53 ± 7.39 at T2) and peri-implant bone loss (0.03 mm vs.-0.17 mm, for conventional and short implants, respectively at T2). Additionally, a significant correlation between the evaluated parameters was not detected. Conclusion The short and conventional implants presented similar stability, bone level and density after the activation of occlusion loading.

El edentulismo parcial puede ser eficazmente rehabilitado con la utilización de implantes oseointegrados. Con los avances de la implantología se ha alcanzado el restablecimiento tanto funcional como estético de áreas edéntulas y principalmente reduciendo el tiempo de tratamiento. Para lograr estos objetivos utilizando implantes oseointegrados, se han desarrollado innumerables técnicas quirúrgicas. En este relato de caso clínico se realizaron dos técnicas quirúrgicas concomitantes asociadas, la instalación del implante con carga inmediata e injerto de tejido conjuntivo. El objetivo de esta asociación de técnicas fue preservar la mucosa queratinizada en el CONIC® - Conexão Sistema de Prótese Ltda) fue instalado en la región con un excelente trabamiento inicial de 50 N.cm determinado por el torquímetro. Esta condición permitió optar por realizar carga inmediata. Por lo tanto fue seleccionado e instalado el abutment del tipo ceraone (Conexão Sistema de Prótese Ltda) y confeccionada la prótesis provisional de resina acrílica.

The partial edentulism might be rehabilitated using dental implants. The advances in implantology had reached the functional reestablishment and esthetics in edentulism areas and decreasing the time of the treatments. These advantages of dental implants may be used in association with different surgical techniques. In this case report two surgical techniques were associated, the placement of dental implant with immediate loading and the connective tissue graft. The aim of this technique was the preservation of the queratinizated and bone tissue, periimplant marginal sealing, and obtaining esthetics in a short term period.