Stomatologiya最新文献

{"title":"[FDM printing in the correction of temporary orthopedic structures: a study of adhesive strength and tightness of the joint].","authors":"V A Erokhin, D A Trunin, F S Rusanov, M S Chistiakova","doi":"10.17116/stomat202610502117","DOIUrl":"10.17116/stomat202610502117","url":null,"abstract":"<p><strong>Objective: </strong>The aim of this study was to improve the quality of prosthetic treatment through the development of methods for correction and modification of temporary prosthetic constructions using FDM printing.</p><p><strong>Materials and methods: </strong>Substrates made of acrylic resins <i>Belacryl M GO</i> and <i>Tempron</i> were used. Elements made of various polymers (PLA, ABS, PC, PMMA) produced by FDM printing were applied to their surfaces. Adhesive strength was evaluated using a Zwick Roell Z010 testing machine under shear and tensile tests, while the microleakage of the bonding zone was assessed with dye penetration.</p><p><strong>Results: </strong>Preliminary surface treatment with methyl methacrylate monomer provided a statistically significant increase in bond strength (<i>p</i><0.05). The highest values were demonstrated by PLA (up to 137.5±27.1 MPa) and ABS (up to 179.8±41.5 MPa). Microleakage testing revealed the absence of dye penetration in the bonding zone after monomer treatment.</p><p><strong>Conclusion: </strong>The proposed method of correction using FDM printing combined with preliminary substrate treatment improves the mechanical strength and sealing properties of the bonds, confirming its clinical potential for the repair and reinforcement of temporary prostheses.</p>","PeriodicalId":35887,"journal":{"name":"Stomatologiya","volume":"105 2","pages":"17-24"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147783872","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Use of autologous free parietal periosteum in the treatment of patients with anhidrotic (hypohidrotic) ectodermal dysplasia].","authors":"A E Ponomarev, S B Butsan, Sh N Iigitaliev, A I Lafishev, S G Bulat, N M Babaev","doi":"10.17116/stomat202610501143","DOIUrl":"https://doi.org/10.17116/stomat202610501143","url":null,"abstract":"<p><strong>Objective: </strong>To evaluate the effectiveness of autologous free parietal periosteum combined with cranial vault bone autografts for alveolar ridge reconstruction in patients with ectodermal dysplasia.</p><p><strong>Materials and methods: </strong>Prospective single-center study; 17 patients aged 17-40 years. Two groups were formed by membrane type: autologous free periosteum (<i>n</i>=6) and collagen membrane (<i>n</i>=11). Bone augmentation was performed with fixation of parietal bone autografts; the spaces between blocks were filled with a mixture of autogenous bone chips and xenograft (70:30). Changes in bone volume were calculated relative to the total volume of the maxilla and mandible using manual slice-by-slice segmentation of MSCT scans with MPR correction (Amira 5.4.5) preoperatively, at 2-3 days, and at 6 months. Graft resorption was assessed at 6 months. Dental implant stability was measured immediately after placement and at 6 months. Statistical processing was performed in IBM SPSS.</p><p><strong>Results: </strong>Both groups demonstrated an increase in bone volume that persisted at 6 months; no between-group differences in volume were found. Graft resorption was lower with autologous free periosteum than with a collagen membrane: maxilla 18.48±1.27% vs 23.56±4.83% (<i>p</i>=0.025); mandible 26.22±1.74% vs 38.68±4.68% (<i>p</i><0.001). Six-month implant stability was higher in the periosteum group (ISQ 86.83±2.04 vs 82.45±1.69; <i>p</i><0.001). No complications of bone grafting or dental implantation were recorded.</p><p><strong>Conclusion: </strong>Using autologous free parietal periosteum as a barrier membrane in cranial vault autograft reconstruction provides better graft volume preservation, lower resorption, and higher dental implant stability compared with a collagen membrane.</p>","PeriodicalId":35887,"journal":{"name":"Stomatologiya","volume":"105 1","pages":"43-51"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147310208","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Comparative analysis of the manufacturing strength of surgical templates made from Dental Yellow Clear PRO photopolymer material (HARZ Labs)].","authors":"F F Losev, T V Brailovskaya, F S Rusanov, I Ya Poyurovskaya, A F Sharganov","doi":"10.17116/stomat20261050215","DOIUrl":"10.17116/stomat20261050215","url":null,"abstract":"<p><strong>Objective: </strong>The aim of the study was to study the physico-mechanical properties of the photopolymer material Dental Yellow Clear PRO (HARZ Labs) and to evaluate its clinical applicability for the manufacture of surgical templates by stereolithographic 3D printing. According to the manufacturer, Dental Yellow Clear PRO (HARZ Labs) is a mixture based on urethandimethacrylate (50-70%), polyethylene glycol dimethacrylate (30-50%) with additives of 2-hydroxypropylmethacrylate and contains photo initiators. The material is available as a liquid of varying transparency and color, odorless, with a viscosity of 800-1000 and a flash point above 100 °C. The main purpose is the production of surgical templates by stereolithographic printing. The data obtained as a result of the tests indicate that when the simultaneously cured layer is halved during 3D printing, the values of strength indicators increase and at the same time the possibilities of deformation of the samples increase.Thus, samples made with a lower layer thickness and a printing step of 0.05 mm instead of 0.1 mm showed higher values of bending strength and modulus of elasticity, on average 24% higher, and the deformation of samples during fracture also increased by 27%. At a printing step of 0.05 mm: the bending strength reaches 124 MPa, and the modulus of elasticity is 2780 MPa. The test results allow us to conclude that Dental Yellow Clear PRO (HARZ Labs) is a promising material for manufacturing surgical templates. It combines sufficiently high mechanical strength and predictable behavior under the influence of functional loads.</p>","PeriodicalId":35887,"journal":{"name":"Stomatologiya","volume":"105 2","pages":"5-8"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147783840","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Engineering of an auxiliary device for intraoral scanning of edentulous jaws with dental implants].","authors":"F F Losev, L B Borovsky, M S Kotik","doi":"10.17116/stomat202610503138","DOIUrl":"https://doi.org/10.17116/stomat202610503138","url":null,"abstract":"<p><strong>Objective: </strong>To develop a prototype design of a universal auxiliary geometric device (AGD) for intraoral scanning of edentulous jaws with dental implants, based on the analysis of existing solutions, and to integrate it into a CAD/CAM workflow.</p><p><strong>Materials and methods: </strong>A mandibular stone reference model with four multi-unit abutment analogs in positions 3.5, 3.2, 4.2, and 4.5 was used. On the basis of a literature review, design requirements for the AGD were formulated and three variants of scan bodies with a unified intermediate part were modelled. Intraoral scanning was performed with a 3Shape TRIOS 3 scanner, and the acquired datasets were processed in Exocad 3.2 to construct virtual implant analogs. Accuracy was assessed by comparing the test scans with the reference model scan in CloudCompare with calculation of linear and angular deviations.</p><p><strong>Results: </strong>The SB3 design demonstrated the lowest linear deviations (39 ± 4 µm; range, 36-44 µm) and angular deviations (0.44±0.16°; range, 0.26-0.67°), markedly outperforming SB1 and SB2 in both metrics. SB3 showed minimal variability between implant positions, indicating high stability of spatial transfer.</p><p><strong>Conclusion: </strong>The developed AGD prototype provides high accuracy and reproducibility of implant position transfer during intraoral scanning of edentulous jaws and may be considered a promising alternative to existing systems for clinical application within a full-digital workflow.</p>","PeriodicalId":35887,"journal":{"name":"Stomatologiya","volume":"105 3","pages":"38-46"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148279059","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[The influence of modern biomaterials on the processes of preventing peri-implantitis].","authors":"I R Khafizov, Z F Gaifutdinov, E A Lutfullina, F A Khafizova","doi":"10.17116/stomat202610503171","DOIUrl":"https://doi.org/10.17116/stomat202610503171","url":null,"abstract":"<p><p>The analysis of domestic and foreign scientific literature has been carried out in order to substantiate the influence of modern biomaterials on the processes of bone tissue regeneration in peri-implantitis. The search for publications was carried out in the databases PubMed, Scopus, RSCI, Google Scholar by keywords: \"periimplantitis\", \"implantation complications\", \"biomaterials\", \"bone regeneration\". 180 publications have been studied. After a full-text analysis, 27 works matching the search criteria were selected. Of these, 2 (7%) papers describe the etiology, pathogenesis, and approaches to the treatment and prevention of peri-implantitis, while 25 (93%) describe the properties of various nanobiomaterials for dental implantation.</p>","PeriodicalId":35887,"journal":{"name":"Stomatologiya","volume":"105 3","pages":"71-77"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148279196","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[The influence of composition and application technology of polymeric materials for temporary restorations in prosthetic dentistry on water sorption and solubility indicators].","authors":"F F Losev, T V Brailovskaya, M P Grigoriev, I Ya Poyurovskaya, L A Markina","doi":"10.17116/stomat20261050415","DOIUrl":"https://doi.org/10.17116/stomat20261050415","url":null,"abstract":"<p><strong>Objective: </strong>Comparative assessment of water absorption and solubility of polymer materials for temporary restorations, differing in composition and technology of application (CAD/CAM, 3D printing, traditional analog method).</p><p><strong>Materials and methods: </strong>Four materials were studied: Huge PMMA (CAD/CAM), Dental Sand Pro (3D printing), Sinma-M (hot polymerization) and Tempokor Automix (chemical curing). Samples in the form of discs (<i>n</i>= 4-8 per group) were made according to the requirements of GOST R 71412-2024. Water absorption (p_w) and solubility (p_s) tests were carried out in distilled water at a temperature of 37 ± 1 °C for 7 days. The statistical analysis was performed using the Student's <i>t</i>-test.</p><p><strong>Results: </strong>Statistically significant intergroup differences were found (<i>p</i><0.05). The highest water absorption was observed in the Dental Sand Pro 3D printing material (40.04±1.59 micrograms/mm³), which corresponds to the upper limit of the standard value. The values of p_w for Huge PMMA (26.76±1.70 micrograms/mm³) and Sigma-M (24.05±2.65 micrograms/mm³) are below the established limit. The solubility of Sinma-M (11.21±3.17 micrograms/mm³) exceeded the standard value (7.5 micrograms/mm³) and was significantly higher than that of Huge PMMA (0.78±0.16 micrograms/mm³) and Dental Sand Pro (4.32±1.44 micrograms/mm³). The Tempocor material showed satisfactory results in both parameters.</p><p><strong>Conclusion: </strong>The water absorption and solubility of polymer materials for temporary restorations significantly depend on both the chemical composition and the manufacturing technology. Milled PMMA (CAD/CAM) demonstrated the greatest stability, while traditional materials showed high variability in properties. The results obtained should be taken into account in the clinical selection of the material to ensure the long-term success of orthopedic treatment.</p>","PeriodicalId":35887,"journal":{"name":"Stomatologiya","volume":"105 4","pages":"5-10"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148713899","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Comparative assessment of glucose levels in oral fluid, parotid saliva and blood in a healthy group of individuals].","authors":"F F Losev, A A Kulakov, O S Vladimirskaya, E S Abramova, E I Selifanova, A E Fomenkova","doi":"10.17116/stomat202610502139","DOIUrl":"10.17116/stomat202610502139","url":null,"abstract":"<p><strong>Objective: </strong>To determine the presence of glucose levels in parotid saliva in somatically healthy people and establish a relationship with indicators in oral fluid, venous and capillary blood.</p><p><strong>Materials and methods: </strong>A comprehensive clinical and laboratory study of 20 healthy volunteers (average age 25 years) was conducted without somatic pathology, 2 of them are men and 18 are women. A health questionnaire was used during the examination. To determine the glucose concentration (in mmol/L), oral fluid, parotid saliva, and capillary and venous blood were collected in the morning on an empty stomach and 2 hours after meals.</p><p><strong>Results: </strong>The glucose level in the oral fluid on an empty stomach was 0.1 mmol/l and 0.03 mmol/l 2 hours after eating, which indicated a significant decrease in the indicator For the first time, the limits of glucose content in parotid saliva in healthy people were 0.02-0.3 mmol/l. There were minimal differences between glucose levels in parotid saliva on an empty stomach and after meals (0.06 mmol/l and 0.05 mmol/l, respectively). In capillary and venous blood, the highest concentration of glucose is reached 2 hours after eating.</p><p><strong>Conclusion: </strong>The study showed that the glucose concentration in parotid saliva in a healthy group of people practically does not change before and after eating, unlike oral fluid. The study of glucose levels in saliva can serve as a clinically significant parameter for additional diagnosis of diseases, which confirms the prospects of this study.</p>","PeriodicalId":35887,"journal":{"name":"Stomatologiya","volume":"105 2","pages":"39-42"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147783883","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Etiological and pathogenetic aspects of odontogenic inflammatory diseases and their sensitivity to antibiotics].","authors":"I D Ushnitsky, A A Chakhov, B F Saidov","doi":"10.17116/stomat202610502151","DOIUrl":"10.17116/stomat202610502151","url":null,"abstract":"<p><p>To date, antibacterial and anti-inflammatory drugs are widely used in the complex treatment of odontogenic inflammatory diseases, but the frequent use of antibiotics leads to changes in the composition and properties of microorganisms, as well as their sensitivity to antibiotics. An overview of the etiological and pathogenetic aspects of odontogenic inflammatory diseases is presented, which examines modern scientific data on the study of pathogens of odontogenic infections and their sensitivity to antibiotics. In this regard, studies aimed at improving the quality of drug treatment of odontogenic inflammatory diseases with the determination of the sensitivity of microflora to antibiotics are relevant.</p>","PeriodicalId":35887,"journal":{"name":"Stomatologiya","volume":"105 2","pages":"51-55"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147783908","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[The role of interleukins in dental caries susceptibility: a review of current evidence and future prospects].","authors":"V O Krivulya, A I Filatova, E A Andreeva","doi":"10.17116/stomat202610502156","DOIUrl":"10.17116/stomat202610502156","url":null,"abstract":"<p><p>A significant role in the development of dental caries is played by a genetic predisposition, especially variations in interleukin (IL) genes that regulate the immune response and tissue permeability. Analysis of literature data confirms a significant association of interleukins (IL6, IL8, IL10, IL17, IL18) and their polymorphic variants (rs1800795/IL-6, rs1800871/IL10, IL1B/rs1143643, IL1RN/rs2234663, IL4/rs8179190) with the risk of caries, periodontitis and their complications (<i>p</i><0.05). This analysis allowed us to establish the contribution of interleukins to the pathogenesis of caries. However, the contribution of these genes has not been sufficiently studied, which requires further molecular genetic studies.</p>","PeriodicalId":35887,"journal":{"name":"Stomatologiya","volume":"105 2","pages":"56-59"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147783919","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Integral criteria for determining indications for surgical repositioning of the premaxilla in patients with bilateral cleft lip and palate at the stage of alveolar bone grafting].","authors":"A L Ivanov, A P Romanenko, N V Udalova","doi":"10.17116/stomat202610502132","DOIUrl":"10.17116/stomat202610502132","url":null,"abstract":"<p><strong>Objective: </strong>To substantiate the criteria for surgical repositioning of the premaxilla in patients with bilateral cleft lip and palate at the stage of preparation for alveolar bone grafting based on a comprehensive assessment of clinical and morphometric data.</p><p><strong>Materials and methods: </strong>The study included 42 patients (mean age 10.9 years) with bilateral cleft lip and palate who had previously undergone primary surgical repair. At the initial stage, the spatial position of the premaxilla was assessed according to four parameters: protrusion, vertical dystopia, rotation, and deviation. All patients underwent orthodontic treatment aimed at preparing for alveolar bone grafting. In cases of ineffective orthodontic correction, surgical repositioning of the premaxilla was performed. According to treatment outcomes, the patients were divided into two groups: 16 patients (38.1%) who required surgical repositioning and 26 patients (61.9%) in whom the deformity was successfully corrected orthodontically. Morphometric measurements were performed using multislice computed tomography (MSCT) of the skull and plaster dental models.</p><p><strong>Results: </strong>In the group of patients who underwent surgical repositioning, the median values were: protrusion - 10.3 mm (5.0-16.6), vertical dystopia - 10.4 mm (2.5-15.2), rotation - 13.0° (0.0-57.0), and deviation - 2.0 mm (0.0-8.6). In the group with successful orthodontic correction, the parameters were lower: protrusion - 4.4 mm (1.6-9.1), vertical dystopia - 2.6 mm (0.0-11.5), rotation - 10.0° (0.0-34.0), and deviation - 1.6 mm (0.0-5.9). Statistically significant differences were found for protrusion and vertical dystopia (<i>p</i><0.0001). Based on the threshold values of the studied parameters, three clinical zones were identified: effective orthodontic correction, a borderline zone, and a zone of pronounced deformity. To objectify treatment indications, an integral deformity index of the premaxilla was developed. It was established that surgical repositioning is not required when the index value is ≤1.168, whereas values ≥1.622 indicate a justified need for surgical intervention.</p><p><strong>Conclusion: </strong>A comprehensive assessment of deformity parameters made it possible to develop a three-zone clinical decision model and an integral deformity index that allows objective determination of indications for surgical repositioning of the premaxilla.</p>","PeriodicalId":35887,"journal":{"name":"Stomatologiya","volume":"105 2","pages":"32-38"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147783921","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}