RESUMO
Introduction: New techniques, surgical protocols, dental implant designs, and prosthetic rehabilitation have been used in dentistry, most of which have yielded good results in the literature. This retrospective survey assessed the clinical results of patients rehabilitated with dental implants between January 2011 and December 2021. Load protocols (immediate and conventional), types of connections of the installed implants, external hexagon (EH), and cone morse (MC) were evaluated. Material and methods: Two evaluators were selected and calibrated to perform the analyses. The inclusion criteria were records with complete and legible information of patients rehabilitated with dental implants who were followed for at least 1 year after rehabilita-tion. The medical records were divided into two groups, G1 (implants with conventional load) and G2 (implants with immediate load), and further subdivided according to implant type. Information about the rehabilitation failures was noted and descriptive statistics of the results were obtained. Results: Among the 432 evaluated medical records of patients rehabilitated with implants, the study included 319 records: 223 from women and 96 from men, aged 20-79 years. In total, data were available on 1,227 implants with dimensions of 10-13 mm and diameters of 3.75-4 mm. The G1 (n=1.188) survival rates were 94.95% for EH implants and 99.5% for MC implants. In G2 (n=39), the survival rates were 93.75% for EH implants and 91.3% for MC implants. The implant survival rates were relatively high among all groups evaluated; however, the discrepancy between the number of implants in the groups may compromise the comparison between them. Understanding and respecting the biomechanical and technical principles of each protocol was the main factor influencing the success of rehabilitation. Conclusion: The results of this study showed that, according to medical records, rehabilitation with dental implants showed excellent results regardless of the connection type (EH or MC) or loading protocol (conventional or immediate). The two loading protocols and two connection types had excellent results and scientific support. Therefore, the choice should be based on the clinical needs of each patient.
Assuntos
Prótese Ancorada no Osso , Implantes Dentários , Masculino , Humanos , Feminino , Estudos Retrospectivos , Implantação Dentária Endóssea , SeguimentosRESUMO
This in-situ study aimed to evaluate the chromatic stability, microhardness, and surfacefree energy of chemically activated acrylic resin (CAAR) samples. Eighty CAAR samples were made and each volunteer (n = 20) received two palatal plates with two sides of groups (without and with glaze application). The samples were exposed to two conditions: the control condition (sucrose 30%) and the test condition (sucrose 30% and 0.12% chlorhexidine). The volunteers used the first palatal device (control condition) for seven days and the second palatal device (test condition) for another seven days, with a seven-day break between them. Then, the ΔΕ00, microhardness, and surface-free energy tests were performed. Analysis of Variance and the Tukey test were used (α = 0.05). The control group with glaze showed higher ΔΕ00 compared to the group without the glaze. The test group with glaze had less ΔΕ00 than their respective controls. In both periods, when the glaze was applied, higher microhardness values were found for all groups. Groups with glaze showed lower roughness and higher surface-free energy than groups without the glaze. The values obtained in this study were satisfactory, showing the clinical efficacy of glaze and the use of 0.12% CH for maintaining the physical and mechanical properties of CAAR.
Assuntos
Resinas Acrílicas , Clorexidina , Humanos , Resinas Acrílicas/química , Cura Luminosa de Adesivos Dentários , Lâmpadas de Polimerização Dentária , Propriedades de Superfície , Teste de Materiais , DurezaRESUMO
Introduction: In the rehabilitation of total edentulous patients, lack of bone availability in posterior maxillary regions is common due to pneumatization of the maxillary sinus and posterior mandible due to the presence of the lower alveolar nerve. And to rehabilitate this type of patient, one of them is the use of short implants. Methods: The work aims to evaluate the success rate of treatment of short implants through a literature review. The search was carried out in august 2020 in the Pubmed (MedLine), Scopus and Embase databases, using the keywords: extra short implants, short implants, survival rate, single implant, atrophic mandible. The keywords followed the AND or OR criteria previously elaborated by the PICO question. The inclu-sion criteria were: implants with a length of 4 to 8 mm, which were single and in the posterior region of atrophic mandible and which had 5 years of follow-up. Articles were excluded from the review where the implants were splinted, had a follow-up of less than 5 years and considered short implants larger than 8 mm. Results: After the search, 4 articles were separated, which totaled an n = 172 short implants obtaining a success rate of 93.47% in 5 years. After the search, 4 articles were separated, which totaled an n = 172 short implants obtaining a success rate of 93.47% in 5 years. Conclusion: We can conclude that the use of short implants, even in single prostheses, has a high success rate, which can provide the edentulous patient with little bone bioavailability for rehabilitation.