Papers by Author: Su Gwan Kim

Abstract: There have been many clinical trials to collect bone debris utilizing special equipment and to apply in the bone graft procedure simultaneously. Collected bone debris (CBD) may be contaminated by bacteria. This may lead to iatrogenic contamination of recipient sites by grafted bone debris. The purpose of this study was to evaluate the effect of strict suction protocol on the levels of bacterial contamination. Total 41 patients (21 male and 20 female patients) with a mean age of 48.97 were selected in this study. They were randomly divided into two groups in this study. One group consisted of a single-suctioning group, while the other was dual-suctioning group. A bone collecting device was used to collect bone specimens during drilling. Samples were obtained and cultures of CBD were performed. Among the 41 samples of cultured bone debris, only 16 samples yielded viable microorganisms. Microorganisms were detected in the 54.5% (12/22) of single-suctioning group, and in 21.1% (4/19) of dual-suctioning group (p=0.03). The majority of microorganisms were Gram positive cocci. It was shown that erythromycin and clindamycin were more effective than penicillin in the antibiotics sensitivity test. It was concluded that the use of strict suction protocol could reduce the bacterial contamination.

Abstract: This study analyzed immediate implantation and immediate loading of chemical mechanical polished (CMP) and resorbable blast media (RBM) SSIII OSSTEM dental implants histometrically. The 1st, 2nd, 3rd, and 4th mandibular premolars were extracted from five adult dogs. Immediate implantation was performed in the fresh extraction sockets. Each dog received two types of implant: CMP and RBM. The first premolar was submerged, whereas the second, third, and fourth were not submerged. The implants were splinted using acrylic resin and subjected to immediate loading. After 4 months, X-rays were taken and analyzed. The animals were euthanized and processed histologically to obtain non-decalcified sections. Longitudinal ground sections of each implant were made, and histometry was analyzed under light microscopy. No significant difference was found between the control and experimental groups based on immediate loading (p > 0.05) and implant surface (p > 0.05). The implant survival rate and implant-to-bone contact rate after immediate loading were similar to those of submerged implants. The CMP and RBM dental implants did not differ in terms of implant survival rate and implant-to-bone contact rate.