A new approach to the protection against infections caused by bacteria and various viruses, including SARS-CoV-2 is described. In concrete example, protective filters and ALBO nanosilver masks showed extraordinary efficiency in protection against Staphylococcus aureus. These results show that it highly overcomes the efficiency of ordinary surgical masks. Besides, systematic meta-analysis given for ordinary surgical masks and filters N95 for masks and respirators, showed no statistical difference between them in the case of SARS-CoV-2. On the base our experimental data and systemic meta-analysis given in this paper, it can be concluded that ALBO nanosilver masks have significant advantages, and show a very perspective concept of developing new protective gear.
{"title":"A new approach to extraordinary efficient protection against COVID 19 based on nanotechnology","authors":"V. Jokanović, M. Živković, N. Zdravković","doi":"10.2298/sgs2002100j","DOIUrl":"https://doi.org/10.2298/sgs2002100j","url":null,"abstract":"A new approach to the protection against infections caused by bacteria and\u0000 various viruses, including SARS-CoV-2 is described. In concrete example,\u0000 protective filters and ALBO nanosilver masks showed extraordinary efficiency\u0000 in protection against Staphylococcus aureus. These results show that it\u0000 highly overcomes the efficiency of ordinary surgical masks. Besides,\u0000 systematic meta-analysis given for ordinary surgical masks and filters N95\u0000 for masks and respirators, showed no statistical difference between them in\u0000 the case of SARS-CoV-2. On the base our experimental data and systemic\u0000 meta-analysis given in this paper, it can be concluded that ALBO nanosilver\u0000 masks have significant advantages, and show a very perspective concept of\u0000 developing new protective gear.","PeriodicalId":180624,"journal":{"name":"Serbian Dental Journal","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123541536","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}
Vanja Opacic-Galic, S. Adzic, B. Dzeletovic, T. Vlajic
Introduction. The aim of this study was to investigate the solubility of gutta-percha points and various endodontic sealants in essential oils. Materials and method. Ninety-six gutta-percha points were divided into the four groups of 24 samples for every essential oil and subsequently divided into the three subgroups corresponding to the immersion times (2,10 and 15 min). The post-immersion amount was obtained for each. Endodontic sealers AHplus, Acroseal, Endomethasone N were included in the research. Samples were treated with corresponding oil for 10 min. Each sample was measured and the amount was obtained. Results. Orange oil was the most effective in dissolving gutta-percha compared to other tested essential oils (p < 0.05). Eucalyptol was more effective in dissolving gutta-percha than tea tree after 10 min (p < 0.05). There was no statistical significance in the effectiveness of essential oils in relation to the time of action (10 or 15 minutes) (p > 0.05). Most weight loss was recorded with Endomethasone for all solvents, but the highest in orange oil and tea tree, followed by eucalyptus and clove oil. Tea tree dissolved AH Plus more efficiently compared to Acroseal. Conclusion. Essential oils showed promising results in dissolving gutta-percha and sealers.
{"title":"In vitro study of essential oils efficacy as alternative solvents in endodontic retreatment","authors":"Vanja Opacic-Galic, S. Adzic, B. Dzeletovic, T. Vlajic","doi":"10.2298/sgs2104173o","DOIUrl":"https://doi.org/10.2298/sgs2104173o","url":null,"abstract":"Introduction. The aim of this study was to investigate the solubility of\u0000 gutta-percha points and various endodontic sealants in essential oils.\u0000 Materials and method. Ninety-six gutta-percha points were divided into the\u0000 four groups of 24 samples for every essential oil and subsequently divided\u0000 into the three subgroups corresponding to the immersion times (2,10 and 15\u0000 min). The post-immersion amount was obtained for each. Endodontic sealers\u0000 AHplus, Acroseal, Endomethasone N were included in the research. Samples\u0000 were treated with corresponding oil for 10 min. Each sample was measured and\u0000 the amount was obtained. Results. Orange oil was the most effective in\u0000 dissolving gutta-percha compared to other tested essential oils (p < 0.05).\u0000 Eucalyptol was more effective in dissolving gutta-percha than tea tree after\u0000 10 min (p < 0.05). There was no statistical significance in the\u0000 effectiveness of essential oils in relation to the time of action (10 or 15\u0000 minutes) (p > 0.05). Most weight loss was recorded with Endomethasone for\u0000 all solvents, but the highest in orange oil and tea tree, followed by\u0000 eucalyptus and clove oil. Tea tree dissolved AH Plus more efficiently\u0000 compared to Acroseal. Conclusion. Essential oils showed promising results in\u0000 dissolving gutta-percha and sealers.","PeriodicalId":180624,"journal":{"name":"Serbian Dental Journal","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127785372","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}
D. Sinadinović, Irena Aleksić-Hajduković, S. Mijomanović
Doctor-patient communication is a type of institutional communication which distinct linguistic features can significantly affect patient satisfaction and treatment outcome. A medical encounter has a clearly defined structure that has been shifting from clinician-centred to patient-centred. Therefore, it is of utter importance for prospective doctors and dentists to be aware of the role of language when communicating with their patients. Given the fact that working in a medical/dental practice has become increasingly international, the paper focuses on the role of the English language. New communicative models and environments such as Computer-Mediated Medical Communication (CMMC) and Video Interaction Guidance (VIG) are also presented.
{"title":"Doctor-patient communication in medicine and dental medicine","authors":"D. Sinadinović, Irena Aleksić-Hajduković, S. Mijomanović","doi":"10.2298/sgs2001050s","DOIUrl":"https://doi.org/10.2298/sgs2001050s","url":null,"abstract":"Doctor-patient communication is a type of institutional communication which\u0000 distinct linguistic features can significantly affect patient satisfaction\u0000 and treatment outcome. A medical encounter has a clearly defined structure\u0000 that has been shifting from clinician-centred to patient-centred. Therefore,\u0000 it is of utter importance for prospective doctors and dentists to be aware\u0000 of the role of language when communicating with their patients. Given the\u0000 fact that working in a medical/dental practice has become increasingly\u0000 international, the paper focuses on the role of the English language. New\u0000 communicative models and environments such as Computer-Mediated Medical\u0000 Communication (CMMC) and Video Interaction Guidance (VIG) are also\u0000 presented.","PeriodicalId":180624,"journal":{"name":"Serbian Dental Journal","volume":"262 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122470630","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}
Introduction. Orthodontics experience has shown that dental compensation of some skeletal irregularities is under the positive influence of external factors. During sagittal development of cranial base and dental arches, they can be placed in relationship of I, II or III skeletal and dentoalveolar class. Malocclusion may be caused by a skeletal irregularity. Despite that, normal occlusion can be achieved by dentoalveolar compensation. The aim of this study was to investigate the influence of orofacial functions on maxillary and mandibular growth, as well as occlusion development in sagittal plane. Material and method. This study consisted of 60 male and female adolescents (average age 15.9). Types of respiration and deglutition were clinically determined. Molar relation and length of dental arch were evaluated from study models. On the lateral cephalograms the following parameters were measured: angles SNA, SNB, ANB, I/SpP and i/MP. Results showed that 78.8% of patients with regular orofacial functions and 11.1% of patients with irregular functions had developed molar class I. Patients with skeletal Class I and Class III and irregular orofacial functions, had protrusion of upper incisors in 88.9% (I) and 80% (III) and high length of maxillary dental arches in 58.8% (I) and 70%(III). Conclusion. There is relationship between orofacial functions and dental compensation of sagittal skeletal irregularities.
{"title":"The influence of orofacial functions on sagittal growth and development of occlusion","authors":"A. Milić, J. Milutinović, J. Milić, E. Aleksić","doi":"10.2298/sgs2201007m","DOIUrl":"https://doi.org/10.2298/sgs2201007m","url":null,"abstract":"Introduction. Orthodontics experience has shown that dental compensation of\u0000 some skeletal irregularities is under the positive influence of external\u0000 factors. During sagittal development of cranial base and dental arches, they\u0000 can be placed in relationship of I, II or III skeletal and dentoalveolar\u0000 class. Malocclusion may be caused by a skeletal irregularity. Despite that,\u0000 normal occlusion can be achieved by dentoalveolar compensation. The aim of\u0000 this study was to investigate the influence of orofacial functions on\u0000 maxillary and mandibular growth, as well as occlusion development in\u0000 sagittal plane. Material and method. This study consisted of 60 male and\u0000 female adolescents (average age 15.9). Types of respiration and deglutition\u0000 were clinically determined. Molar relation and length of dental arch were\u0000 evaluated from study models. On the lateral cephalograms the following\u0000 parameters were measured: angles SNA, SNB, ANB, I/SpP and i/MP. Results\u0000 showed that 78.8% of patients with regular orofacial functions and 11.1% of\u0000 patients with irregular functions had developed molar class I. Patients with\u0000 skeletal Class I and Class III and irregular orofacial functions, had\u0000 protrusion of upper incisors in 88.9% (I) and 80% (III) and high length of\u0000 maxillary dental arches in 58.8% (I) and 70%(III). Conclusion. There is\u0000 relationship between orofacial functions and dental compensation of sagittal\u0000 skeletal irregularities.","PeriodicalId":180624,"journal":{"name":"Serbian Dental Journal","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132157677","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}
Milica Jovanovic-Medojevic, Ivana Milanović, Alena Zdravković, D. Stratimirovic
Introduction. Deformations and fractures of Ni-Ti instruments during chemomechanical instrumentation of root canals occur due to the action of cyclic and torsional forces. The aim of this research was to analyze the surfaces of the working parts of Mtwo instruments after preparation of root canals with different curvatures using SEM and determine possible changes and deformations after instrumentation. Materials and methods. The study included 3 sets of Mtwo (VDW, Munich, Germany) instruments. Each set was used to instrument 10 canals in three experimental groups (straight, slightly curved, and highly curved canals). Instrumentation was carried out using crown-down technique with the following irrigation solutions, 2% NaOCl (CHLORAXID 2%, Cerkamed, Polska) and Distilled water (Iva, Serbia) in the amount of 5 cm3. The apical and middle third of the instruments were scanned in two directions using SEM at different magnifications (150-2000X). The SEM images were analyzed using qualitative analysis for the presence of different irregularities according to Eggert et al. Statistical analysis of obtained data was performed using Fisher test at a confidence level of 5% (? = 0.05). Results. Most defects (37.3%) were observed in instruments used in highly curved canals, followed by the instruments of the second group (35.6%), and the least defects were (27.1%) observed in the group with straight canals. Higher prevalence of defects was observed in the apical thirds of instruments (54.2%), especially in the experimental group of curved canals where the highest presence was observed (20.3%). The presence of production grooves was observed in all instruments, and the most common types of defects after instrumentation were the appearance of corrosion and changes in the cutting edges. In the group with extremely curved canals fractures were observed in two instruments (10/0.04 and 15/0.05). Conclusion. Root canal curvature significantly affects the occurrence of deformations and fractures of Ni-Ti rotating instruments. The most common types of defects were grooves, corrosion and changes in the blade edges. Mtwo instruments showed deformations in terms of thread changes, microfractures and two complete fractures.
{"title":"Sem analysis of Mtwo instruments after instrumentation of root canals with different curvatures","authors":"Milica Jovanovic-Medojevic, Ivana Milanović, Alena Zdravković, D. Stratimirovic","doi":"10.2298/sgs2103131j","DOIUrl":"https://doi.org/10.2298/sgs2103131j","url":null,"abstract":"Introduction. Deformations and fractures of Ni-Ti instruments during\u0000 chemomechanical instrumentation of root canals occur due to the action of\u0000 cyclic and torsional forces. The aim of this research was to analyze the\u0000 surfaces of the working parts of Mtwo instruments after preparation of root\u0000 canals with different curvatures using SEM and determine possible changes\u0000 and deformations after instrumentation. Materials and methods. The study\u0000 included 3 sets of Mtwo (VDW, Munich, Germany) instruments. Each set was\u0000 used to instrument 10 canals in three experimental groups (straight,\u0000 slightly curved, and highly curved canals). Instrumentation was carried out\u0000 using crown-down technique with the following irrigation solutions, 2% NaOCl\u0000 (CHLORAXID 2%, Cerkamed, Polska) and Distilled water (Iva, Serbia) in the\u0000 amount of 5 cm3. The apical and middle third of the instruments were scanned\u0000 in two directions using SEM at different magnifications (150-2000X). The SEM\u0000 images were analyzed using qualitative analysis for the presence of\u0000 different irregularities according to Eggert et al. Statistical analysis of\u0000 obtained data was performed using Fisher test at a confidence level of 5% (?\u0000 = 0.05). Results. Most defects (37.3%) were observed in instruments used in\u0000 highly curved canals, followed by the instruments of the second group\u0000 (35.6%), and the least defects were (27.1%) observed in the group with\u0000 straight canals. Higher prevalence of defects was observed in the apical\u0000 thirds of instruments (54.2%), especially in the experimental group of\u0000 curved canals where the highest presence was observed (20.3%). The presence\u0000 of production grooves was observed in all instruments, and the most common\u0000 types of defects after instrumentation were the appearance of corrosion and\u0000 changes in the cutting edges. In the group with extremely curved canals\u0000 fractures were observed in two instruments (10/0.04 and 15/0.05).\u0000 Conclusion. Root canal curvature significantly affects the occurrence of\u0000 deformations and fractures of Ni-Ti rotating instruments. The most common\u0000 types of defects were grooves, corrosion and changes in the blade edges.\u0000 Mtwo instruments showed deformations in terms of thread changes,\u0000 microfractures and two complete fractures.","PeriodicalId":180624,"journal":{"name":"Serbian Dental Journal","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129703292","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}
M. Eftimoska, Ana Petroska, Boban Terzievski, V. Rendžova, S. Apostolska
Introduction. In dental practice, despite the constant improvement of dental equipment and materials, caries removal using rotational instruments is still not a satisfactory way. The caries removal treatment constantly offers numerous alternatives in order to replace machine tools, and one of them is the chemo-mechanical method. The aim of this paper is to examine the effectiveness of the chemo-mechanical method of caries removal using BRIX 3000 and classic method. Material and Method. We used BRIX 3000; a material intended for atraumatic caries removal. Both caries elimination methods were performed in 40 patients with evident carious lesions. Twenty patients underwent atraumatic caries removal while in the other twenty carious tissue was removed using rotating instruments. Results. BRIX 3000 was effective in caries removal. A significant reduction in the use of local anesthetics was noticed. Patients did not experience discomfort or pain during treatment with BRIX 3000, but the duration of caries removal using this atraumatic method was significantly longer than with the classic method. Conclusion. Atraumatic method of caries removal is an adequate alternative to conventional therapeutic procedures for caries removal, which finds a place in the domain of modern minimally invasive dentistry.
{"title":"Comparative study of caries removal using BRIX 3000 and classic mechanical method","authors":"M. Eftimoska, Ana Petroska, Boban Terzievski, V. Rendžova, S. Apostolska","doi":"10.2298/sgs2202057e","DOIUrl":"https://doi.org/10.2298/sgs2202057e","url":null,"abstract":"Introduction. In dental practice, despite the constant improvement of dental\u0000 equipment and materials, caries removal using rotational instruments is\u0000 still not a satisfactory way. The caries removal treatment constantly offers\u0000 numerous alternatives in order to replace machine tools, and one of them is\u0000 the chemo-mechanical method. The aim of this paper is to examine the\u0000 effectiveness of the chemo-mechanical method of caries removal using BRIX\u0000 3000 and classic method. Material and Method. We used BRIX 3000; a material\u0000 intended for atraumatic caries removal. Both caries elimination methods were\u0000 performed in 40 patients with evident carious lesions. Twenty patients\u0000 underwent atraumatic caries removal while in the other twenty carious tissue\u0000 was removed using rotating instruments. Results. BRIX 3000 was effective in\u0000 caries removal. A significant reduction in the use of local anesthetics was\u0000 noticed. Patients did not experience discomfort or pain during treatment\u0000 with BRIX 3000, but the duration of caries removal using this atraumatic\u0000 method was significantly longer than with the classic method. Conclusion.\u0000 Atraumatic method of caries removal is an adequate alternative to\u0000 conventional therapeutic procedures for caries removal, which finds a place\u0000 in the domain of modern minimally invasive dentistry.","PeriodicalId":180624,"journal":{"name":"Serbian Dental Journal","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122593105","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}
In this paper viruses are considered as very efficient nano-machines that produce numerous copies of them. Observing these nano-architectures, the question arises: which molecular forces and processes make up the set of such structures, given that they are extremely inspiring for development of new technologies at the nano level. There is a need for deep understanding of individual molecular building blocks and their structures, properties of their assemblies and dynamic behavior.
{"title":"Viruses as potential nanomachines","authors":"V. Jokanović, M. Živković, S. Živković","doi":"10.2298/SGS2101031J","DOIUrl":"https://doi.org/10.2298/SGS2101031J","url":null,"abstract":"In this paper viruses are considered as very efficient nano-machines that\u0000 produce numerous copies of them. Observing these nano-architectures, the\u0000 question arises: which molecular forces and processes make up the set of\u0000 such structures, given that they are extremely inspiring for development of\u0000 new technologies at the nano level. There is a need for deep understanding\u0000 of individual molecular building blocks and their structures, properties of\u0000 their assemblies and dynamic behavior.","PeriodicalId":180624,"journal":{"name":"Serbian Dental Journal","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128335711","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}
Djordje Pejanović, Milana Cabrilo, D. Djurić, V. Biočanin
Sodium hypochlorite (NaOCl) is a strong antiseptic agent that is usually used as endodontic irrigant for dissolving organic parts of pulp and dentin and neutralizing toxic products. However, the use of sodium hypochlorite may cause destruction of blood vessels, soft tissues and bone necrosis if extruded into the periapical region. Urgent treatment of the NaOCl accident should be oriented on pain relief, infection control and recovery. This paper shows a case of periradicular tissue necrosis after accidental extrusion on NaOCl through fausse route of right maxillary canine, and complete tissue regeneration after surgical debridement and bone augmentation with addition of platelet rich fibrin (PRF) that occurred in a 53-year old patient at the dental clinic of Faculty of Dentistry in Pancevo.
{"title":"Periradicular tissue necrosis caused by accidentally injected sodium hypochlorite through fausse route in upper maxillary canine","authors":"Djordje Pejanović, Milana Cabrilo, D. Djurić, V. Biočanin","doi":"10.2298/SGS2004219P","DOIUrl":"https://doi.org/10.2298/SGS2004219P","url":null,"abstract":"Sodium hypochlorite (NaOCl) is a strong antiseptic agent that is usually used\u0000 as endodontic irrigant for dissolving organic parts of pulp and dentin and\u0000 neutralizing toxic products. However, the use of sodium hypochlorite may\u0000 cause destruction of blood vessels, soft tissues and bone necrosis if\u0000 extruded into the periapical region. Urgent treatment of the NaOCl accident\u0000 should be oriented on pain relief, infection control and recovery. This\u0000 paper shows a case of periradicular tissue necrosis after accidental\u0000 extrusion on NaOCl through fausse route of right maxillary canine, and\u0000 complete tissue regeneration after surgical debridement and bone\u0000 augmentation with addition of platelet rich fibrin (PRF) that occurred in a\u0000 53-year old patient at the dental clinic of Faculty of Dentistry in Pancevo.","PeriodicalId":180624,"journal":{"name":"Serbian Dental Journal","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134162773","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}
V. Lazić, A. Todorović, Marko Lazić, V. Konstantinovic
Maxillofacial defects create physical, emotional and mental problems for the patient. The task of surgical-prosthetic rehabilitation is to provide best possible functional and esthetic solution. The aim of this paper was to present a modern approach to auricular defect rehabilitation. A 24-year-old patient with a lack of the right ear lobe due to trauma was admited for aesthetic rehabilitation. Implant-retained ear prosthesis was indicated. Three implants were placed into mastoid region of the temporal bone, and after the period of osseointegration, an individualized bar was attached to them for the retention of an auricular prosthesis made out of silicone. Prosthetic rehabilitation, in this case, achieved excellent retention and restored the appearance as well as self-confidence of the patient.
{"title":"Auricular prosthesis retained with implants - a case report","authors":"V. Lazić, A. Todorović, Marko Lazić, V. Konstantinovic","doi":"10.2298/sgs2104202l","DOIUrl":"https://doi.org/10.2298/sgs2104202l","url":null,"abstract":"Maxillofacial defects create physical, emotional and mental problems for the\u0000 patient. The task of surgical-prosthetic rehabilitation is to provide best\u0000 possible functional and esthetic solution. The aim of this paper was to\u0000 present a modern approach to auricular defect rehabilitation. A 24-year-old\u0000 patient with a lack of the right ear lobe due to trauma was admited for\u0000 aesthetic rehabilitation. Implant-retained ear prosthesis was indicated.\u0000 Three implants were placed into mastoid region of the temporal bone, and\u0000 after the period of osseointegration, an individualized bar was attached to\u0000 them for the retention of an auricular prosthesis made out of silicone.\u0000 Prosthetic rehabilitation, in this case, achieved excellent retention and\u0000 restored the appearance as well as self-confidence of the patient.","PeriodicalId":180624,"journal":{"name":"Serbian Dental Journal","volume":"86 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132195502","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}
Renata Josipović, Violeta Petrovic, Marijana Popović-Bajić, Irena Kuzmanovic-Radman, Mirjana Umićević-Davidović, Aleksandra Djeri, S. Živković
Introduction. In addition to good biological properties, biomaterials should also possess appropriate physical properties in order to provide stability and longevity at the place of application. The aim of this work was to evaluate physical properties of an experimental nanostructured material based on calcium aluminate (CAL) and calcium silicate (CS). Material and method. The research used nanostructured calcium aluminate synthesized by the hydrothermal solgel method from the individual components of calcium aluminate (CaO?Al2O3), calcite (CaCO3) and barium sulfate (BaSO4) as an X-ray contrast agent and calcium silicate (CS). The prepared material was placed in plastic molds with a diameter of 5 ? 0.1 mm and a height of 2 ? 0.1 mm. After setting time, the materials were left in an incubator at 37?C for 24 hours, and then they were removed from the mold and absorption and solubility of the materials was calculated. MTA (Angelus Londrina, Brazil) was used as a control material. Results. The lowest material solubility was recorded with MTA (0.255 mg/mm3), followed by calcium silicate (0.267 mg/mm3), and the highest with calcium aluminate (0.725 mg/mm3). The difference was statistically significant between calcium aluminate and MTA (p = 0.001901) and between calcium aluminate and calcium silicate (p = 0.002550). After 28 days in deionized water, the lowest water sorption was recorded with MTA (0.347 mg/mm3), followed by calcium silicate (0.357 mg/mm3), and the highest water sorption was measured with calcium aluminate (0.474 mg/mm3). Statistically significant differences were observed between calcium aluminate and MTA (p = 0.000283) and between calcium aluminate and calcium silicate (p = 0.001576). Conclusion. Material solubility and water absorption of calcium aluminate-based nanostructured material was significantly higher compared to calcium silicate (CS) and MTA.
{"title":"Evaluation of sorption and solubility of materials based on calcium aluminate","authors":"Renata Josipović, Violeta Petrovic, Marijana Popović-Bajić, Irena Kuzmanovic-Radman, Mirjana Umićević-Davidović, Aleksandra Djeri, S. Živković","doi":"10.2298/sgs2301026j","DOIUrl":"https://doi.org/10.2298/sgs2301026j","url":null,"abstract":"Introduction. In addition to good biological properties, biomaterials should\u0000 also possess appropriate physical properties in order to provide stability\u0000 and longevity at the place of application. The aim of this work was to\u0000 evaluate physical properties of an experimental nanostructured material\u0000 based on calcium aluminate (CAL) and calcium silicate (CS). Material and\u0000 method. The research used nanostructured calcium aluminate synthesized by\u0000 the hydrothermal solgel method from the individual components of calcium\u0000 aluminate (CaO?Al2O3), calcite (CaCO3) and barium sulfate (BaSO4) as an\u0000 X-ray contrast agent and calcium silicate (CS). The prepared material was\u0000 placed in plastic molds with a diameter of 5 ? 0.1 mm and a height of 2 ?\u0000 0.1 mm. After setting time, the materials were left in an incubator at 37?C\u0000 for 24 hours, and then they were removed from the mold and absorption and\u0000 solubility of the materials was calculated. MTA (Angelus Londrina, Brazil)\u0000 was used as a control material. Results. The lowest material solubility was\u0000 recorded with MTA (0.255 mg/mm3), followed by calcium silicate (0.267\u0000 mg/mm3), and the highest with calcium aluminate (0.725 mg/mm3). The\u0000 difference was statistically significant between calcium aluminate and MTA\u0000 (p = 0.001901) and between calcium aluminate and calcium silicate (p =\u0000 0.002550). After 28 days in deionized water, the lowest water sorption was\u0000 recorded with MTA (0.347 mg/mm3), followed by calcium silicate (0.357\u0000 mg/mm3), and the highest water sorption was measured with calcium aluminate\u0000 (0.474 mg/mm3). Statistically significant differences were observed between\u0000 calcium aluminate and MTA (p = 0.000283) and between calcium aluminate and\u0000 calcium silicate (p = 0.001576). Conclusion. Material solubility and water\u0000 absorption of calcium aluminate-based nanostructured material was\u0000 significantly higher compared to calcium silicate (CS) and MTA.","PeriodicalId":180624,"journal":{"name":"Serbian Dental Journal","volume":"300 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133637318","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}
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