Multiple implantations at reduced bone supply with a special implant design

Performed by Dr. Michael Claar, Dr. Miriam Mujakovic

The dental implantology is indispensable in the dental practice since its introduction by Professor Brånemark in the 60s of the last century. It has decisive changed and developed dental medicine. Since the beginning, people are suffering from the trauma of tooth loss and in many cases they were treated insufficient and unsatisfactory with the, at the time offered prosthetic concepts.

Through the introduction of the intraosseous implant, this has been significantly improved.

So we can nowadays realize in many cases, the desire in patients with extremely compromised bone situations, for fixed dental prostheses using modern Augmentative measures and techniques and special implants. The further development in the field of augmentation materials has narrowed in the last few years the indication for an autologous bone transfer (keyword: Intra and extra oral removal points Also the changes and improvements in the macro and micro area of the implants ensure that even in difficult initial situations a very high clinical success rate can be realized…

The implant system we use in this clinical case “Leader” of the company NIKO Dental shows a very high primary stability in extremely structurally weak bones. This is due to its unique, root-shaped widening implant body. In the area of the implant shoulder, a threaded split exists to serve also the highest aesthetic demands of the patient and therapist. The implant surface is extensive scientifically studied and can be described as absolutely clean and pure.

Clinical case:
A 67-year-old female patient presented herself within the implant consultation with the desire for a fixed prosthetic restoration in the upper jaw. She was instantly supplied with a removable denture, which however caused her great difficulties while eating and speaking (Fig. 1 + 2). The patient was informed in detail about the possibilities of a removable and fixed restoration. Besides the clinical analysis, a preoperative three-dimensional diagnostics (digital volume tomography) was also made (Fig. 2a + 2b).

It showed a significantly reduced bone volume in the area of the right maxillary sinus. In particular, a perforation with complete bony destruction in region 16, 17 could be diagnosed. In the further anterior region of the maxilla, there was a vertical and lateral atrophy.

The patient expressed her explicit desire for a fixed restoration so that the following treatment plan was created:

Implantation in region 15, 16 with simultaneous external sinus lift with inlay of the bone regeneration material and implantation in region 14, 12 and 22 (Fig. 3). Due to the compromised bone site, we opted for the insertion of the “Leader” implant system. Especially in these difficult cases, the special implant design convinces by achieving a high primary stability.

In local anesthesia, the four “Leader” implants were as planned inserted. The illustrations show the simultaneous augmentation and implant placement in the area of the right maxillary sinus. As one can recognize easily, a much reduced residual bone height shows up. Nevertheless, a sufficient primary stability can be achieved (Fig. 4-10).

Also, the other three implants could be easily inserted with good primary stability (Fig. 11).

Furthermore, it is surgically in such difficult cases advantageous that the implant axis can be conditionally modified intraoperatively by the unique processing and Insertions Protocol (Fig. 12-15).

In this clinical patient case, the immediate loading of implants was dispensed and the osseointegration time of four months was selected.

See Also

Comparative Analysis of Surface and Chemical Composition of Various Dental Implant Systems and Their Influence on Degree of Sensitization in Humans

Nowadays dental implantology is the leading method for restoration of the masticatory efficiency in patients with secondary partial edentia. Dental implants are often made from corrosion-proof bioinert materials (titanium, zirconium, corundum ceramics), which promote proper osseointegration (adhesion of the dental implant surface with bone tissue), do not cause allergy and are well compatible with materials, from which the implant suprastructures are made…