History of the BOI® implant
Fig.1: Jean-Marc Julliets's lateral implant form 1973
Basal implants were developed and improved in several stages, primarily by French and German dentists.
The first single-piece implant was developed and used by Dr. Jean-Marc Julliet in 1972. His design was available in two sizes and has been in use, unchanged, until this very day. But since no homologous cutting tools are produced for this implant, its use is fairly demanding.
It was not until the mid-1980s that the French dentist, Dr. Gerard Scortecci, presented an improved basal implant system complete with matching cutting tools. Together with a group of dental surgeons, he developed two types of implants, called “Diskimplants”, with internal and later external connectors to the prosthetic superstructure.
Since approximately the mid-1990s, a group of interested dentists and dental surgeons in Germany have developed new implant types and more appropriate tools, as well as practical accessories, based on the Diskimplant systems. These efforts than gave rise to the development of the modern BOI® implant.
In 1997 Dr. Ihde Dental has started producing lateral basal implants in the way the "Diskimplants" were made. These implants were round and not many shapes were available. The surface was initially roughened.
Fig.2: Modern basal implants, designed and produced by Dr. Ihde Dental AG, Switzerland
Soon Dr. Ihde Dental developed improved types of basal implants:
- the formerly round base plates got edges, this prevented early rotation of the implants in the bone before integration.
- in 2002 the fracture-proof design of the base plate was invented and later patented in Europe and the United States.
- bending zones in the vertical implant shaft were introduced.
- from 2005 on the experiences with lateral basal implants were transferred to screwable designs (BCS, GBC).
Regarding the surface structure in 1999 the vertical implant parts were produced polished, and from 2003 on all the basal implant was produced polished. The reason was, that polished surfaces show no tendency to inflammation (no mucositis, no peri-implantitis), and in case of sterile loosening, reintegration of the implants was possible if the loads were adjusted in time. It was also observed, that roughened osseous-surfaces have less tendency to re-integrate.
The design was developed into skelleted direction, leaving enough elasticity for the development and functional stimulation of bone.
The abutment design was also developed:
- initially basal implants were designed as two-piece designs, later one-piece designs were introduced.
- two head sized became available for cemented constructions.
- internal screw connections were developed. These designs are important for maxillo-facial use and the fixation of epitheses.
Of course, the development will not stop here. Today the basal implants produced by Dr. Ihde Dental are the best basal implant system currently available.
Thanks to the passion and dedication of Dr. Stefan Ihde and other BOI users, the BOI technology has progressed to the point where it is an accepted part of received academic medicine and that dental implantology would seem inconceivable without.