Outcomes of treatment with short dental implants compared with standard-length implants: a retrospective clinical study.

BACKGROUND: The size of dental implants is a key success factor for appropriate osseointegration. Using shorter implants allows the possibility of avoiding complex surgical procedures and reduces the morbidity of treatment. Shorter implants also enable implant-prosthetic rehabilitation after maxillofacial reconstructions where only limited bone is available. In this study, the success rates of short implants were examined and compared to those of standard-sized implants. METHODS: Patients who received dental implants between 2007 and 2016 at the Department of Oro-Maxillofacial Surgery and Stomatology Semmelweis University were enrolled in the study. Several clinical parameters were recorded and supplemented with radiological examinations. The data were statistically analysed. RESULTS: Thirty-four patients with a total of 60 implants were included. The average time after prosthetic loading was 39.33 ± 21.96 months in the group with 8-mm implants and 41.6 ± 27.5 months in the group with > 8-mm implants. No significant differences were observed between the two groups in terms of probing depth (short implants, 2.84 ± 0.09 mm; standard implants, 2.91 ± 0.35 mm) or mean marginal bone loss (short implants, 1.2 ± 1.21-mm mesially and 1.36 ± 1.47-mm distally; standard implants: 0.63 ± 0.80-mm mesially and 0.78 ± 0.70-mm distally). CONCLUSIONS: In this study, the success rate of short dental implants was comparable to that of standard-sized implants. Consequently, it can be claimed that the long-term success of short dental implants does not differ significantly from the long-term success of standard implants.

[Changes in the "classical" factors influencing dental implant-osseointegration in recent decades]. / A fogászati implantátumok csontbeépülését befolyásoló "klasszikus" tényezok változásai az elmúlt évtizedekben.

Nowadays, it is almost naturally taken among dentists that seemed unimaginable a few decades ago, namely that an inorganic material (titanium) inserted in an organic environment (bone) can be integrated and become a permanent pillar of prosthetics. Bone integration - meaning a structural and functional connection between the implant and the bone - itself was discovered and described in the late 1960s. This provides the basis of dental implantology. In those days, the conditions affecting the positive or negative course of bone integration have been formulated. This process is investigated at the level of basic research and rarely mentioned in the daily clinical practice. The material, form, and surface of the implant all contribute to success if we design well and apply the correct surgical technique. Our goal is to present the changes that have taken place over the past decades, which have resulted in an increasingly perfect integration and clinical success of implants. Orv Hetil. 2019; 160(37): 1455-1463.

Diagnostic problems of the mucormycosis of the maxillary sinus Case presentation.

Mucormycosis is a fulminant opportunistic infection with significant mortality in susceptible individuals. Although mortality rates vary widely (30 to 100%) according to professional literature, recently in instances with no central nervous system (CNS) involvement the survival rate averages varies between 50 and 80% owing to complex therapy. With CNS involvement, however, the fatality rate is over 80%. Predisposing diseases include diabetes mellitus, malnutrition, hematologi- cal diseases, neutropenia, burns, surgical procedures, antibiotic treatments, long-term steroid therapy and immunosuppressive therapy. Mucormycosis may at times arise even in -immunocompetent individuals. It has diverse clinical forms with the most frequent forms being rhino-maxillary and rhino-oculocerebral (the latter of which is characterized by a high mortality rate). They mainly enter the body through inhalation, with saprophytic mucor species often demonstrable in the upper respiratory tracts, which are nevertheless non-pathogenic in most healthy individuals. The spores may also enter percutaneously through traumas, skin lesions, insect bites, or injections (e.g. through intravenous drug use); as well as via the alimentary tract with contaminated foodstuff. The prognosis can be improved by a quick establishment of the diagnosis, the quick initiation of the therapy and treatment of the underlying disease. Although first and foremost the recognition and treatment of the disease does not rest with dentists and oral surgeons, in order to localize the disease it is important to examine it from a differential diagnostic point of view and interdisciplinary cooperation may also be required in a complex treatment. Our aim is to introduce mucormycosis in our case report study.