Osseointegration is a process in which integration of the implant to the bone is improved to enhance the mechanical stability of the implant. This is done by micro- roughening the surface of the implant by various techniques such as sand-blasting followed by chemical etching. The micro-roughened surface thus forms a strong interlock with the bone and improving the stability. However, only the surfaces that proceed towards the root of the tooth are needed to be micro-roughened and the upper surfaces of the implant are needed to be protected. Currently, there is no literature about processes and materials that protect a part of the dental implant when subjected to SLA (Chemical treatment) process. This thesis is an experimentation to protect the upper portion of the implant, by using Low-surface energy (LSE) polymer tapes, chemically inert tapes and Bio-inspired design of caps. The experiments were carried out to see how Low surface energy polymer (LSE) tapes & chemically inert tapes would withstand the high corrosive nature of the acids and how Bio-inspired caps act as an effective sealing agent in protecting the surface of the implant. Also, on how "Claw inspired structures" can be used in an entirely different application, that is as a sealing agent.
L’Osteointegrazione è un processo che migliora l’integrazione delle protesi con l’osso, al fine di garantirne stabilità meccanica. Ciò viene ottenuto, eseguendo un micro-irruvidimento della superficie dell’impianto, tramite vari processi, quali la sabbiatura seguita da incisione chimica. La superficie micro-irruvidita funge in questo modo da congiunzione serrante con l’osso, migliorandone la stabilità. Tuttavia solo la superficie che penetra la cavità radicale del dente necessita un processo di micro finitura, mentre la superficie dell’impianto che resta esposta deve esserne esclusa. Allo stato dell’arte non è presente alcuna letteratura riguardo processi e materiali atti a proteggere aree specifiche degli impianti, quando sono soggetti a trattamenti superficiali SLA (Trattamento chimico). Questa tesi è una ricerca sperimentale sulla protezione della porzione superiore nelle protesi dentali, tramite l’utilizzo di adesivi polimerici a bassa energia superficiale LSE (Low surface energy) e di capsule ispirate al bio-design. Gli esperimenti sono stati eseguiti per studiare come gli adesivi polimerici a bassa energia superficiale (LSE) possano essere in grado di resistere alla natura altamente corrosiva degli acidi e capire come le capsule dentali ispirate al bio-design possano fungere efficacemente da elementi sigillanti, proteggendo la superficie dell’impianto. Lo studio esplora l’utilizzo delle strutture ad artiglio in un’applicazione completamente diversa come quella di strutture sigillanti negli impianti dentali.
Masking materials & bio-inspired caps for chemical etching of dental implants
VELIVELA, PAVAN TEJASWI
2017/2018
Abstract
Osseointegration is a process in which integration of the implant to the bone is improved to enhance the mechanical stability of the implant. This is done by micro- roughening the surface of the implant by various techniques such as sand-blasting followed by chemical etching. The micro-roughened surface thus forms a strong interlock with the bone and improving the stability. However, only the surfaces that proceed towards the root of the tooth are needed to be micro-roughened and the upper surfaces of the implant are needed to be protected. Currently, there is no literature about processes and materials that protect a part of the dental implant when subjected to SLA (Chemical treatment) process. This thesis is an experimentation to protect the upper portion of the implant, by using Low-surface energy (LSE) polymer tapes, chemically inert tapes and Bio-inspired design of caps. The experiments were carried out to see how Low surface energy polymer (LSE) tapes & chemically inert tapes would withstand the high corrosive nature of the acids and how Bio-inspired caps act as an effective sealing agent in protecting the surface of the implant. Also, on how "Claw inspired structures" can be used in an entirely different application, that is as a sealing agent.File | Dimensione | Formato | |
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https://hdl.handle.net/10589/143135