Biomaterial Database

Influence of abutment design on the success of immediately loaded dental implants: experimental and numerical studies. 2012

I Hasan, and B Röger, and F Heinemann, and L Keilig, and C Bourauel

Endowed Chair of Oral Technology, Rheinische Friedrich-Wilhelms University, Welschnonnenstr. 17, 53111 Bonn, Germany.

The aim of the present study was to investigate experimentally and numerically the influence of a fine threaded- against a roughened-cervical region of immediately loaded dental implants in combination with straight and 20°-angled abutments on the implant primary stability. A total of 30 implants were inserted in bovine rib-segments, 14 cervically roughened implants and 16 implants with fine cervical threads. Each implant system received two abutments, straight and 20°-angled. Implant displacements and rotations were measured using a biomechanical measurement system. Subsequently, eight samples were selected for geometrical reconstruction and numerical investigation of stress and strain distributions in the bone by means of the finite element method. Experimentally, both implant systems showed similar behaviour with the straight abutments concerning displacements and rotations. However, fine threaded implants showed much less displacement and rotation against roughened implants when angled abutments were considered. Numerically, stresses were within 35-45 MPa in the cortical bone for both implant systems. The strains showed highest values within the spongious bone with the roughened implants connected to angled abutments. The results indicate that implants with fine cervical threads could be recommended in particular with angled abutments. The outcomes of this study are currently confirmed by long-term clinical investigations.

UI	MeSH Term	Description	Entries
D009038	Motion	Physical motion, i.e., a change in position of a body or subject as a result of an external force. It is distinguished from MOVEMENT, a process resulting from biological activity.	Motions
D002417	Cattle	Domesticated bovine animals of the genus Bos, usually kept on a farm or ranch and used for the production of meat or dairy products or for heavy labor.	Beef Cow,Bos grunniens,Bos indicus,Bos indicus Cattle,Bos taurus,Cow,Cow, Domestic,Dairy Cow,Holstein Cow,Indicine Cattle,Taurine Cattle,Taurus Cattle,Yak,Zebu,Beef Cows,Bos indicus Cattles,Cattle, Bos indicus,Cattle, Indicine,Cattle, Taurine,Cattle, Taurus,Cattles, Bos indicus,Cattles, Indicine,Cattles, Taurine,Cattles, Taurus,Cow, Beef,Cow, Dairy,Cow, Holstein,Cows,Dairy Cows,Domestic Cow,Domestic Cows,Indicine Cattles,Taurine Cattles,Taurus Cattles,Yaks,Zebus
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia
D001696	Biomechanical Phenomena	The properties, processes, and behavior of biological systems under the action of mechanical forces.	Biomechanics,Kinematics,Biomechanic Phenomena,Mechanobiological Phenomena,Biomechanic,Biomechanic Phenomenas,Phenomena, Biomechanic,Phenomena, Biomechanical,Phenomena, Mechanobiological,Phenomenas, Biomechanic
D012272	Ribs	A set of twelve curved bones which connect to the vertebral column posteriorly, and terminate anteriorly as costal cartilage. Together, they form a protective cage around the internal thoracic organs.	Rib
D015921	Dental Implants	Biocompatible materials placed into (endosseous) or onto (subperiosteal) the jawbone to support a crown, bridge, or artificial tooth, or to stabilize a diseased tooth.	Dental Implants, Mini,Dental Prosthesis, Surgical,Implants, Dental,Dental Implant,Dental Prostheses, Surgical,Implant, Dental,Prostheses, Surgical Dental,Prosthesis, Surgical Dental,Surgical Dental Prostheses,Surgical Dental Prosthesis,Dental Implant, Mini,Mini Dental Implant,Mini Dental Implants
D059605	Dental Implant-Abutment Design	The plan and delineation of DENTAL IMPLANT fitting with DENTAL ABUTMENT.	Dental Implant Platform Switching,Dental Implant-Abutment Connection,Dental Implant-Abutment Interface,Morse Taper Dental Implant-Abutment Connection,Morse Taper Dental Implant-Abutment Interface,Dental Implant-Abutment Designs,Platform Switching, Dental Implant,Connection, Dental Implant-Abutment,Connections, Dental Implant-Abutment,Dental Implant Abutment Connection,Dental Implant Abutment Design,Dental Implant Abutment Designs,Dental Implant Abutment Interface,Dental Implant-Abutment Connections,Dental Implant-Abutment Interfaces,Design, Dental Implant-Abutment,Designs, Dental Implant-Abutment,Implant-Abutment Connection, Dental,Implant-Abutment Connections, Dental,Implant-Abutment Design, Dental,Implant-Abutment Designs, Dental,Implant-Abutment Interface, Dental,Implant-Abutment Interfaces, Dental,Interface, Dental Implant-Abutment,Interfaces, Dental Implant-Abutment,Morse Taper Dental Implant Abutment Connection,Morse Taper Dental Implant Abutment Interface
D020342	Finite Element Analysis	A computer based method of simulating or analyzing the behavior of structures or components.	Analysis, Finite Element,Analyses, Finite Element,Element Analyses, Finite,Element Analysis, Finite,Finite Element Analyses