[The effect of visual education based on digital intraoral scanning on postoperative anxiety in patients with immediate dental implant].

Purpose: To evaluate the effect of visual education based on digital intraoral scanning on postoperative anxiety and treatment confidence in patients with immediate dental implant.

Methods: A total of 266 patients who underwent immediate implantation in Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine from January to October 2022 were randomly divided into 2 groups based on the ratio of 1:1, the control group adopted traditional nursing education method, and the experimental group carried out visual education based on digital intraoral scanning on the basis of traditional nursing education. The anxiety self-rating scale (SAS) was used to evaluate the anxiety level after surgery, the numerical score method (NRS) was used to evaluate the patient's confidence in treatment, and visual analogue score(VAS) was used to evaluate the patient's satisfaction with nursing work.

[Clinical effect of subgingival sandblasting with glycine powder on prevention of peri-implantitis].

Purpose: To evaluate the clinical effect of subgingival sandblasting with glycine powder on prevention of peri-implantitis.

Methods: One hundred and eight patients underwent dental implantation at First Outpatient Department from January 2017 to January 2018 were divided into 3 groups, i.e.

[Nursing cooperation during maxillary sinus lateral fenestration and bone grafting].

Purpose: To summarize the experience and effect of holistic quality nursing during perioperative period of maxillary sinus lateral fenestration.

Methods: From January 2010 to December 2016, there were a total of 26 patients with maxillary sinus lateral fenestration in the First Dental Clinic Department. Through observation and analysis of nursing cooperation combined with psychological nursing in the perioperative period, coordination and postoperative nursing, the overall experience and effect of holistic quality nursing were summarized.

[Practice and effect of one-stop service of dental clinic for old people].

Purpose: To evaluate the effect of one-stop service of dental clinic for old people.

Methods: Before and after the implementation of one-stop service in the First Dental Clinic,120 elderly patients were selected as the study subjects. SPSS19.

[Analysis and prevention of dust pollution caused by 5 common prosthetic materials].

Purpose: To analyze and evaluate dust pollution in prosthodontic clinic and make proposal for reasonable protection.

Methods: This study analyzed the particle size, element composition and dust concentration of 5 materials which were commonly used in dental restorations (veneering ceramics, cobalt-chromium alloy, photosensitive plastic, hard base resin, advanced artificial teeth) by using scanning electron microscopy (SEM), X-ray energy dispersive spectrometer（EDS） and dust concentration laser tester, in order to assess the effects of prosthodontic dust posed on medical staff health and put forward reasonable suggestions for prevention and control of dust pollution.

Results: The particle size of veneering ceramics, cobalt-chromium alloy, photosensitive plastic, hard base resin and advanced artificial teeth was (2.

Novel vanadium(III) complexes with rigid phenylpolycarboxylate ligands: synthesis, structures and application in C-H bond activation.

Two novel vanadium(III) complexes: V(dipic)(Hbdc)(H2O)2 (1) and [V2(dipic)2(H2btec)(H2O)4]·2H2O (2) (H2dipic = 2,6-pyridinedicarboxylic acid, H2bdc = 1,3-benzene-dicarboxylic acid, H4btec = 1,2,4,5-benzenetetracarboxylic acid) are synthesized by the reaction of V2(SO4)3, 2,6-pyridinedicarboxylic acid and 1,3-benzene-dicarboxylic acid (for 1) or 1,2,4,5-benzenetetracarboxylic acid (for 2) under hydrothermal condition at 120 °C for 3 days. They were characterized by elemental analysis, IR, UV-Vis, single crystal X-ray diffraction analysis and thermogravimetric analyses (TG). Structural analyses show that the vanadium atoms in the complexes 1 and 2 are both in a pentagonal-bipyramidal coordination environment with the NO6 donor set, and there is intermolecular hydrogen bonding in each complex.

[The effect of disinfectant soaking on dental gypsum model size].

Purpose: To study the influence of disinfectant soaking on the dimensional stability of three kinds of dental gypsum model.

Methods: Three commonly used gypsums ( type III,IV,Vtype) in clinic were used to make 24 specimens for 50 mm×15 mm×10 mm in size. One hour after release, the specimens were placed for 24 h.