No 5 (2008)

The aim of the study was to ground the method consisting in the use of mesenchymal stem cells (MSC) on a carrier of titanium and gold alloys to intensify reparative osteogenesis in an experiment on a rabbit mandible. The study shows that implantation of MSC into the bony wound stimulates reparative osteogenesis within one to four months of the experiment. The authors conclude that titanium and golden alloy carriers may be used to carry MSC to stimulate bone reparation.

The results of studies have revealed that various methods of intraoral radiography and orthopantomography used to detect the root canals of maxillary and mandibular incisors, canines and premolars have serious limitations able to lead to inaccurate interpretation of obtained information before endodontological treatment. Radial computed tomography performed in the axial view is an objective technique to assess root canal structure. The choice of the technique of instrumental processing of root canals depends on peculiarities of root canal structure. The studies have defined the appropriateness of the use of a combined technique to prepare canals with a combination of tools belonging to different systems for one root canal.

Front view head telerentgenogramms of patients aged 13 to 15 with transversal incisor occlusion and physiological lateral tooth occlusion were analyzed. Dentoalveolar formula caused by changes in the position (incline) of the incisors and canines was established. Periostometry found a decrease in the tolerance of incisor and canine periodontum to horizontal load in patients with the dentoalveolar form of transversal incisor occlusion.

The article presents the technology of replacing prosthetics in patients with maxillary post-resection defects and the results of its application in orthopedic rehabilitation of oncological patients. Peculiarities of treatment technique using specially developed obturating prostheses with superelastic TiNi basis are covered.

The aim of the investigation was to assess the clinical efficacy of acroseal (Septodont, France), a calcium-containing preparation for constant root canal filling using mepasil, osomol 4 (Pierre Rolland, France) and metapaste (Biomed CO, Ltd., South Korea) during the course of treatment. One hundred and fifty-nine subjects aged 18 to 70 years (98 women and 61 men; 218 teeth in total) were treated and followed up. The main group consisted of 130 patients (184 teeth), who received conservative endodontal treatment with acroseal. The comparison group consisted of 29patients (34 teeth), in whom vitapex (Neo Dental Chemical, Japan) was applied. Between one and three years after treatment, a radiological examination was carried out; it showed that complete or partial recovery of the chronic focus was achieved in 93.5% of patients in the main group and 94% of patients in the comparison group.

Forty-seven patients with mandibular fracture complicated with bony wound suppuration and phlegmon were examined; oral fluid with its macro- and microelements was studied. The study found that the level of calcium and silicon as well as P/Ca ratio were decreased, while the levels of phosphorus, strontium, and zinc, as well as Ca/Sr and Zn/Sr ratios, were stable. These variables, together with the clinical picture, made it possible to judge about the character of the inflammatory process and the lesion of bony structures, i.e. traumatic osteomyelitis.

Practical experience in certification and accreditation of dental organizations was gained in Kemerovo region within the framework of the system of control over the quality of dental aid. Factors influencing the quality of service at all stages of medical aid were established, professional requirements to provide this quality were grounded, and mechanisms to obtain information on the activity and competitiveness of the institution were developed. Medico-technical, economic, and social aspects should be taken into consideration to provide maximal objectivity of the results.