[Survival and success rate of dental implants treated with high intensity laser].

Clinical and radiological evaluations were conducted in patients with high energy Nd : glass laser-treated dental implants. These patients underwent dental implantation surgery between 1997 and 2006. Strict success criteria were used for the examination and analysis of implants.

[Possibilities of clinical testing of osseointegration in oral implants].

The osseointegration of oral implants is of utmost importance as far as the success of implant prosthetics is concerned. In clinical practice osseointegration can only be tested indirectly. The loading of implants is usually linked to osseointegration as a condition.

[A biomechanical study of Uniplant SP temporary dental implants: loading under laboratory conditions].

The mechanical strength parameters of Uniplant SP temporary implants were investigated. In clinical practice temporary implants are used to provide the patient with a fixed temporary restoration. Temporary implants are one-part implants small in diameter, and by design they have excellent primary stability.

[The proximal tibia. A possible donor site in preprosthetic surgery].

With the development of oral implantology the augmentation of the alveolar process and the maxillary sinus has become a more and more frequent procedure. Even though a vast array of bone replacement materials is available commercially, they all just have an osteoconductive effect. By now it has become clear that the 'gold standard' of bone grafts is autologous bone that is both osteoconductive and osteoinductive.

[Changes in the indications for oral surgical implants based on statistical analysis].

Journals, books and lectures on oral implantology are concerned less and less with the various fields of indication and their changes. The reason for this is in part that from a surgical point of view we consider the lack of contraindication as the indication of dental implant placement, while from a prosthetic point of view implant supported prosthetic work can be done in any prosthetic situation. Despite of this it is an interesting question, how the ratios of the various fields of indication have changed in view of the age groups and genders in Hungary in the past twenty years.

[A biomechanical study of the mechanical stress transmission of dental implants using finite element analysis. Part II. Experiments].

In the first part of this two-part study the possible uses of finite element analysis in studying the stress transmission of dental implants were reviewed. In the present second part our own experiments are presented. In the first series the effect of the geometric parameters and load types on mechanical stresses arising around cylindrical implants in bone were studied with 2D and 3D finite element analysis.

[A biomechanical study of the mechanical stress transmission of dental implants using finite element analysis. Review of literature. Part I].

Finite Element Analysis (FEA) is a computerised investigative method that is capable of determining the mechanical stress arising in various objects and their environment as a result of forces effecting the system by using a mathematical model. The method is most often used for purposes of technical, engineering design, but is very useful for medical purposes-the static and functional investigation of the skeletal and motor system of the human body-as well. The transmission of mechanical stress between the implant and bone depends on a number of factors, and its description is quite complicated.

[The effect of the surface morphology of Ti-implants on the proliferation activity of fibroblasts and osteoblasts].

It is known that surface morphology greatly influences the osseointegration of dental implants. The goal of the experiments conducted by the authors was to study in vitro the effect of various surface modifications on the activity of bone and connective tissue cells. In the experiments they introduced NIH3T3 fibroblast and MCH3T3 osteoblast cells were cultured the surface of ten titanium disks with various morphology in 24-multiwell plates.