RESUMEN
Objetivo: analisar o sucesso do tratamento através de implantes cônicos de hexágono externo e interno, de superfície jateada com Al2O3 seguido de três ataques ácidos, com acompanhamento clínico de sete anos. Material e métodos: foi realizado um estudo retrospectivo aprovado pelo comitê de ética da Universidade de Guarulhos, entre os anos de 2009 e 2016, no qual foram selecionados 136 pacientes após os critérios de inclusão e exclusão, sendo instalados 774 implantes cônicos de hexágono externo e interno nos maxilares. Após o tempo de osseointegração, os implantes receberam as coroas protéticas finais. Resultados: a avaliação retrospectiva de 774 implantes cônicos de hexágono externo e interno, de superfície jateada com Al2O3 seguido de três ataques ácidos, com um acompanhamento clínico de sete anos, resultou em índices totais de sucesso na osseointegração de 98,39%, com uma perda óssea marginal de 1,08 mm após este período. Conclusão: a previsibilidade de sucesso no tratamento através dos implantes cônicos de hexágono externo e interno, de superfície jateada com Al2O3 seguido de três ataques ácidos, foi de 98,3%. A qualidade óssea é fundamental na previsibilidade do tratamento.
Objective: to analyze the treatment success of Al2O3 sandblasted, acid-etched, external and internal tapered connection dental implants after 7 years of follow-up. Material and methods: upon approval by the Ethics Committee of the University of Guarulhos, a retrospective study involving 136 patients receiving 774 dental implants in the jaws was performed. After the osseointegration period, definitive prosthetic restorations were delivered. Results: after 7 years of follow-up, the overall success rate was of 98.33% with a marginal bone loss of 1.08 mm. Conclusion: the treatment predictability of alumina sandblasted, external and internal tapered implants was significant. Bone quality is fundamental for treatment success.
Asunto(s)
Humanos , Implantación Dental Endoósea , Implantación Dental/métodos , Prótesis Dental , OseointegraciónRESUMEN
The high success range obtained with the implant-supported restorations has improved its applicability on routine of the daily clinical practice. This elevated percentage of success is related to the previous pre-clinical data obtained from animal and in vitro studies that evaluated the impact of implant surface topographies on bone tissue. However, the histological evaluation of human bone tissue is scarce. Therefore, the aim of this review is to depict an actual panorama of the data available on boneto- implant contact (BIC) of retrieved implants from human jaws. Some aspects of implant surface topography as well as systemic conditions as osteoporosis and smoking habit were demonstrated to have a strong impact, suggesting that the data obtained from human bone tissue is still valuable for the better understanding of the osseointegration process. This article also highlighted that most data in humans are difficult to interpret, due to the lack of detailed information about the surfaces found in retrieved implants. Without the definition of the surface characteristics, it is difficult to link exactly the surface patterns to specific clinical observations, and all observations remain de facto incomplete. As a conclusion, data from implants retrieved from human jaws are very important for our understanding, however the studies remain scarce and data is fragmented. This important approach should be improved, completed and developed in the future.