Long-term results after lateral and osteotome technique sinus floor elevation: a retrospective analysis of 2190 implants over a time period of 15 years.

Background: During a time period of 15 years (1992-2007), 2190 implants were inserted in 983 patients after sinus floor elevation.

Materials And Methods: One thousand two hundred and seven implants (461 patients) were placed into sites, in which the sinus was augmented using the lateral approach (LSFE), and 983 implants (522 patients) in sites augmented with the osteotome technique. Bovine bone mineral (n=1217), beta-tricalcium phosphate (n=126), and in some cases, only autogenous bone were used for augmentation in the LSFE.

Time courses of lidocaine effects on sodium membrane currents in small and large neurons.

Time courses of effects of lidocaine on sodium currents and sodium dependent action potentials were studied in somata of small and large neurons. Cultured rat sensory spinal ganglion cells (diameter: 30 microns) and neurons of the buccal ganglion of Helix pomatia (diameter: 150 microns) served as the test cells. The latency of the suppressive action of lidocaine was the longer the larger the of the cells was.

Membrane potential of rat calvaria bone cells: dependence on temperature.

The membrane potentials of bone cells derived from calvaria of new born rats was shown to be strongly dependent on temperature. When we lowered the temperature from 36 degrees C to 26 degrees C, cells with spontaneous resting membrane potentials (MP) of -80 to -50 mV depolarized (mean amplitude 8 mV; n = 33), and the membrane resistance increased by approximately 80% (n = 20). The temperature response depended on the actual MP, the reversal potential being in the range of -80 to -90 mV.

[Pain symptoms and the consumption of analgesics of emergency dental care patients].

The histories and clinical findings of 1000 emergency dental care patients have been documented and evaluated. The majority of these patients had pain symptoms of varying duration and genesis. In a high percentage of the cases analgesic therapy was provided using combined preparations.