The research is devoted to the study of geotectonic and geodynamics of the Shu-Ile belt and petrographic composition and intrusive complexes geochemical features analysis. The Shu-Ile suture is an important geological structure of Kazakhstan. It is characterized by the presence of various intrusive formations and deep faults. The material composition of these intrusions is of interest for understanding the geological and metallogenic processes in this region. The research used modern scientific methods, including petrographic and geochemical studies of various compositions intrusion samples. Based on the results of material composition studies of intrusive complexes, their possible connections with other geological structures of Kazakhstan and the metallogeny of the region have been established. Based on the data obtained, a conclusion was made about the intrusive complexes origin and evolution of the Shu-Ile belt, which may be important for further geological research and forecasting of mineral resources in the region.

Keywords: Tendon injuries; Mallet finger; Suture techniques

In order to study the petrogenesis and tectonic setting of Permian A-type granites and their relationships with hydrothermal mineralization along the Hegenshan-Heihe suture zone (HHSZ) in northeastern China, we select the newly discovered Hongyan Cu-polymetallic deposit in the northeastern part of the HHSZ that develops three stages of mineralization associated with the Shanshenfu alkali-feldspar granite (SAFG). The zircon U-Pb dating and whole rock geochemistry suggest that the SAFG is a typical A-type granite formed in the Early Permian. The zircon Hf isotopes and trace elements suggest that the SAFG has high Ti-in-zircon temperature (721–990℃), high magmatic oxygen fugacity and largely positive εHf(t) (+6.0 to +9.9). Therefore, we propose that the SAFG was derived from the crustal assimilation and fractional crystallization of the charnockitized juvenile crust. The high oxygen fugacity favors the chalcophile elements (e.g., Cu, Au, Ag) of the source region enriched in the fluid phases after magmatic fractional crystallization, consequently facilitating subsequent hydrothermal mineralization, which is also consistent with the characteristics of ore-forming fluids that changed from the initial high temperature, high salinity, high fO2 and CO2-rich magmatic-hydrothermal fluids of stage I to CO2-poor, dilute, and cooling meteoric fluids of stage III. Combined with regional geological background, the Permian A2-type granites along the HHSZ can be formed in post-collisional slab break-off process. In subsequent exploration for hydrothermal deposits along the HHSZ, the Permian A-type granites with arc-related juvenile crustal source and high fO2 have great potential and need more attention.

Background and Objectives: Impacted lower third molar extraction, is a common oral surgical pro-cedure. Pain, swelling and limitation of mouth opening that may occur in the postoperative pe-riod are factors that affect the daily routines of patients. In this study, it was aimed to evaluate the efficacy of polybutester and polypropylene sutures on postoperative complications after lower impacted third molar surgery. Materials and Methods: On 35 patients with bilateral impacted lower third molars included in the study; two different suture materials were used as polybutester suture in group 1 and polypro-lene suture in group 2. Measurements were made for the evaluation of edema and trismus be-fore the operation and on the 2nd and 7th day after the operation, and a visual analogue scale (VAS) was given to patients to fill in after the operation. Wound healing, suture related injury, and suture related discomfort in patients were noted. Results: According to the results of the study, the pain felt on the side using the polybutester su-ture on the 2nd postoperative day was less than the side using the polypropylene suture (p<0.05). On the 2nd postoperative day, it was observed that the suture on the side which the polybutester suture was used caused less discomfort to the patients than on the side which the polypropylene suture was used (p<0.05). It was observed that women experienced more pain (p<0.01) and more trismus (p<0.05) after the operation compared to men. Conclusions: On postoperative 2nd day, less pain was observed on the side where the polybutester suture was used and it was also found that the polybutester was better tolerated. These results support the use of polybutester suture in the surgery of im-pacted third molars.

Background: Selection and application of suture materials, has gained more importance especially with the increasing number of patients seeking oral surgeries. Since lying in a bacterial-filled environment, sutures make the tissue prone to infection. Suture material plays an important role in the reduction of the risk of infection. This study aimed to assess the success rate of an antibacterial suture named Vicryl Plus in preventing bacterial growth in the surgical site of the mandibular third molar. Methods: 27 patients were included in this double-blinded randomized clinical trial study. Surgical Extraction of the mandibular wisdom tooth was done and the incision was managed by randomly using Vicryl Plus and Vicryl sutures. After 7 days, sutures were removed and assessed microbiologically. Predominant species of Streptococcus mutans and Lactobacillus were assessed as well as the total number of colonies on each suture. Results: There was a significant difference between two suture materials in colony number-length ratio of lactobacillus (p-value= 0.031) and total bacterial colonies (p-value=0.016); but not for S. mutans species (p-value=0.201). Conclusion: Antibacterial Vicryl suture can be a useful tool for the reduction in the rate of surgical site infection in high-risk cases and situations.

The aim of this paper was to evaluate the changes in the mean bone density values of the midpalatal suture in 392 young patients treated with the Rapid Palatal Expander appliance according to sex, gender, vertical and sagittal skeletal patterns. Materials and Methods. The evaluations were performed using the low-dose protocol cone-beam computed tomography scans at t0 (preoperatively) and t1 (1 year after the beginning of the therapy). The region of interest was used to calculate bone density in Hounsfield units (HU) in the area between the maxillary incisors. Results. CBCT scan data of 196 females and 196 males (mean age of 11,7 years) showed homogeneous and similar density values of the MPS at T0 (547.59 HU - 565.85 HU) and T1 (542.31 - 554.20 HU). Class III skeletal individuals showed a significant higher BD than the II class group at T0, but not at T1. Females showed significantly higher BD than males at t0 and t1. No significant differences were found between the other groups and between two-time points in terms of bone density values of the MPS. Conclusions. Females and III class groups showed significantly higher bone density values than males and II class, respectively. No statistically significant differences were found from T0 to T1 in any groups, suggesting that a similar rate of suture reorganization occurs after the use of the RPE, following reorganization and bone deposition along with the MPS.

The mineralogical indices, e.g., Quartz Index (QI), Carbonate Index (CI), Mafic Index (MI) for ASTER multispectral thermal infrared (TIR) data have been applied to various geological materials. The indices are proved to be robust in extracting geological information at the local scale. Considering the relatively narrow spatial coverage of each ASTER scene compared to LANDSAT, many scenes are needed when mosaicking the images to be mapped at regional scales. We develop a system to search ASTER data for a target area given the vast and expanding ASTER data archive. The data is then conditioned, prioritized, and the indices are calculated before finally mosaicking the imagery. The maps of the indices covering the very wide region of the central Tibetan Plateau are produced with this system. The characteristic features of the indices relating to their geology in the study area are analyzed and discussed. Many interesting lithological and structural information that are not currently well understood in the central Tibetan Plateau, the highest and most extensive plateau in the world, with an average elevation of over 4,500 meters above sea level, for example, distributions of the mafic-ultramafic rocks along the suture zones, the quarzitic and marine sedimentology accreted to the Eurasian continent and sulfate layers related to the Tethys and neo-Tethys geological setting can be retrieved from the processed ASTER images.