After implant insertion and loading, crestal bone usually undergoes a process of remodelling and resorption. In order to reduce crestal bone loss, the “platform switching” technique has been proposed, in which the horizontal relationship between the outer edge of the implant and a smaller-diameter component is increased. The aim of the present work was to evaluate in vitro a fixture-abutment connection with cone morse and screw. Mechanical tests were carried out using a Lloyd 30K universal testing machine (Lloyd Instruments Ltd, Segensworth, UK). The load was applied on the coronal portion of the abutment with a crosshead speed of 5 mm/min, and the fracture load data were automatically recorded using Nexigen software (Nexigen, Batch Version 4.0, Issue 23, Lloyd Instruments Ltd, Segensworth, UK). The results indicated that the force necessary to induce a fracture when using the new fixture-abutment connection with cone morse and screw joint systems reached 1250±60 N. In conclusion, the fixture-abutment connection with the cone morse tested in this study presents a very high resistance.
MECHANICAL ANALYSIS OF THE CONE MORSE ABUTMENT IMPLANT
F. Inchingolo;
2018-01-01
Abstract
After implant insertion and loading, crestal bone usually undergoes a process of remodelling and resorption. In order to reduce crestal bone loss, the “platform switching” technique has been proposed, in which the horizontal relationship between the outer edge of the implant and a smaller-diameter component is increased. The aim of the present work was to evaluate in vitro a fixture-abutment connection with cone morse and screw. Mechanical tests were carried out using a Lloyd 30K universal testing machine (Lloyd Instruments Ltd, Segensworth, UK). The load was applied on the coronal portion of the abutment with a crosshead speed of 5 mm/min, and the fracture load data were automatically recorded using Nexigen software (Nexigen, Batch Version 4.0, Issue 23, Lloyd Instruments Ltd, Segensworth, UK). The results indicated that the force necessary to induce a fracture when using the new fixture-abutment connection with cone morse and screw joint systems reached 1250±60 N. In conclusion, the fixture-abutment connection with the cone morse tested in this study presents a very high resistance.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
