Das konometrische Konzept für implantatgetragene Einzelkronen: die definitive Befestigung ohne Zement oder Schrauben

Gehrke, Peter; Fischer, Carsten; Weinhold, Octavio; Dhom, Günter

doi:10.1055/a-1374-1223

Cited by 2 publications

(2 citation statements)

References 18 publications

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“…In the conometric connection, retention is achieved only through the frictional force developed at the abutment-cap interface. A perfect fit between the two surfaces and the absence of a marginal gap in the conometric connection are fundamental requirements to avoid failures and bacterial infiltration [35,36]. In attempts to further minimize inflammatory responses and enhance bone stability in the crestal area of the implant, numerous in vitro studies emphasized that a gap between the abutment and cap (2.04-2.064 µm) is necessary to prevent bacterial infiltration [37][38][39].…”

Section: Discussionmentioning

confidence: 99%

Finite Element Analysis (FEA) for the Evaluation of Retention in a Conometric Connection for Implant and Prosthesis

Ceddia,

Comuzzi,

Di Pietro

et al. 2023

Osteology

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Today, dental implantology represents a reliable technique for treating both partial and total edentulism. The fixation of dentures on dental implants can be achieved using various techniques, where the choice of a specific technique depends on the patient’s individual needs, the jawbone’s condition, and the prosthesis design. Currently, the two most common types of prosthetic abutment connections are cemented and screwed, each with its own set of advantages and disadvantages. This study aimed to analyze a novel Morse cone connection system between the prosthesis and implant using finite element analysis (FEA). The analysis of connection retention was conducted using three different approaches: analytical, in vitro, and FEA. Three-dimensional models were created for systems comprising an abutment, healing cap, and crown under three inclination conditions: 0°, 15°, and 30°. Using Ansys finite element software (R1 2023), the impact of the tilt on the system retention was examined. The FEA showed results comparable with the in vitro studies regarding the retention strength for an abutment cap system with a 4° taper, obtaining 66.6 N compared with the 68 N calculated in our in vitro study. The inclination of the abutment affected the system retention due to the hole made in the abutment’s surface, decreasing the contact area between components. The Morse cone prosthesis–implant connection system was found to be the most stable and efficient compared with threaded or cemented systems. The retention was influenced by factors such as the abutment conicity, insertion strength, and the contact surface between components.

show abstract

Section: Discussionmentioning

confidence: 99%

Finite Element Analysis (FEA) for the Evaluation of Retention in a Conometric Connection for Implant and Prosthesis

Ceddia,

Comuzzi,

Di Pietro

et al. 2023

Osteology

View full text Add to dashboard Cite

show abstract

“…In the conometric connection, retention is given only by the frictional force that develops at the abutment-cap interface. The perfect fit between the two surfaces and the absence of marginal gap of the conometric connection is a fundamental requirement to avoid failures and bacterial infiltration [36,37]. In an attempt to further reduce inflammatory responses and maximize bone stability in the crestal area of the implant, many in vitro studies [38][39][40] have defined that in the conometric connection, the gap between abutment and cap (2.04-2.064 micron) was considered necessary to avoid bacterial infiltration phenomena.…”

Section: Discussionmentioning

confidence: 99%

Finite Element Analysis (FEA) for Evaluation of Retention in a Conometric Connection for the Implant and Prosthesis.

Ceddia,

Comuzzi,

Di Pietro

et al. 2023

Preprint

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Today, dental implantology is a reliable technique for the treatment of partial and total edentulism. The fixing of dentures on dental implants can be achieved by a number of different techniques. The choice of technique depends on the specific needs of the patient, the condition of the jawbone and the design of the prosthesis itself. Currently, the two most common types of prosthetic abutment connections are cemented or screwed connections, both of which have disadvantages and ad-vantages. The aim of this study is to analyze, with Finite Element Analysis (FEA), a new Cone Morse connection system between the prosthesis and implant. The connection retention has been analyzed by adopting three different approaches: analytical, in vitro and the FEA method. The systems formed by abutment, healing-cap, and crown with three different inclination conditions were modeled in 3D: 0°, 15° and 30°. With Ansys finite element software, the effect of tilt on system retention was studied. The FEA analysis showed comparable results with in vitro studies regarding the retention strength for an abutment-cap system with a taper of 4°, obtaining 66.6 N compared to 68 N calculated through an in vitro study. The inclination of the abutment affects the retention of the system because the hole made on the surface of the abutment, decreases the contact area between the components. The Cone Morse prosthesis implant connection system is the most stable and efficient system compared to the threaded or cemented system. Retention is influenced by factors such as abutment conicity, insertion strength and the contact surface be-tween components.

show abstract

Das konometrische Konzept für implantatgetragene Einzelkronen: die definitive Befestigung ohne Zement oder Schrauben

Cited by 2 publications

References 18 publications

Finite Element Analysis (FEA) for the Evaluation of Retention in a Conometric Connection for Implant and Prosthesis

Finite Element Analysis (FEA) for the Evaluation of Retention in a Conometric Connection for Implant and Prosthesis

Finite Element Analysis (FEA) for Evaluation of Retention in a Conometric Connection for the Implant and Prosthesis.

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