Katarina Radovic, B. Brkovic, Jugoslav Ilić, Aleksandra Milić-Lemić, Tamara Jovanovic, Boris Jovanović, J. Roganović
Introduction. Vascular endothelial growth factor (VEGF) is signal molecule enrolled in diabetes mellitus type 2 (DM type 2) oral complications, but there are no studies showing the relation between VEGF and pressure caused by denture wearing in diabetic conditions. The aim of this study is to compare tissue VEGF levels in patients and animals with/without DM in conditions of chronic and acute pressure. Methods. Research was conducted on DM type 2 and healthy partial denture wearers for more than 5 years (78), candidates for teeth extractions and experimental animals of the Wistar rats (40). For chronic conditions, VEGF was measured in 2 mucosal samples covered and not covered by denture in all denture wearers. Demonstrating acute conditions, after 3 days of wearing experimental plate VEGF was measured in 2 gingival samples of palatal mucosa of DM (20) and control rats (20). The concentrations of VEGF (pg/ml) in human and animal tissues were measured by commercially available ELISA kit. Results. Tissue VEGF levels in control and diabetic partial denture wearers not covered by denture were without statistical difference. In comparison to noncovered tissue, VEGF decreased in samples covered by denture, being significantly lower in DM type 2, comparing to healthiest. VEGF levels in palatal mucosa without palatal base did not significantly differ in control and DM rats. VEGF levels under palatal base increased being significantly lower in DM rats comparing to controls. Conclusion. Both, chronic and acute mechanical stress caused by wearing palatal denture (plate) decreased the VEGF levels in diabetic conditions comparing the health?s suggesting the altered homeostasis.
{"title":"Vascular endothelial growth factor as a response of denture bearing tissues on mechanical stress in diabetes mellitus","authors":"Katarina Radovic, B. Brkovic, Jugoslav Ilić, Aleksandra Milić-Lemić, Tamara Jovanovic, Boris Jovanović, J. Roganović","doi":"10.2298/sgs2301018r","DOIUrl":"https://doi.org/10.2298/sgs2301018r","url":null,"abstract":"Introduction. Vascular endothelial growth factor (VEGF) is signal molecule\u0000 enrolled in diabetes mellitus type 2 (DM type 2) oral complications, but\u0000 there are no studies showing the relation between VEGF and pressure caused\u0000 by denture wearing in diabetic conditions. The aim of this study is to\u0000 compare tissue VEGF levels in patients and animals with/without DM in\u0000 conditions of chronic and acute pressure. Methods. Research was conducted on\u0000 DM type 2 and healthy partial denture wearers for more than 5 years (78),\u0000 candidates for teeth extractions and experimental animals of the Wistar rats\u0000 (40). For chronic conditions, VEGF was measured in 2 mucosal samples covered\u0000 and not covered by denture in all denture wearers. Demonstrating acute\u0000 conditions, after 3 days of wearing experimental plate VEGF was measured in\u0000 2 gingival samples of palatal mucosa of DM (20) and control rats (20). The\u0000 concentrations of VEGF (pg/ml) in human and animal tissues were measured by\u0000 commercially available ELISA kit. Results. Tissue VEGF levels in control and\u0000 diabetic partial denture wearers not covered by denture were without\u0000 statistical difference. In comparison to noncovered tissue, VEGF decreased\u0000 in samples covered by denture, being significantly lower in DM type 2,\u0000 comparing to healthiest. VEGF levels in palatal mucosa without palatal base\u0000 did not significantly differ in control and DM rats. VEGF levels under\u0000 palatal base increased being significantly lower in DM rats comparing to\u0000 controls. Conclusion. Both, chronic and acute mechanical stress caused by\u0000 wearing palatal denture (plate) decreased the VEGF levels in diabetic\u0000 conditions comparing the health?s suggesting the altered homeostasis.","PeriodicalId":180624,"journal":{"name":"Serbian Dental Journal","volume":"83 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":"117258705","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. Since 1987, there has been little information on oral health (OH) status of young adults aged 19 to 26 in Serbia. This study aimed to investigate the trends in OH status and OH-related quality of life (OHRQoL) of undergraduate student population in Belgrade in 2012. Materials and methods. The study included a total of 699 students of different study fields who underwent a dental examination, with 530 of them agreeing to an assisted survey and 275 forgoing a periodontal assessment. The survey consisted of six sections - basic information, socio-demographic data, oral healthcare use and habits, risk factors, OH self-assessment and OHRQoL. Clinical assessment was performed using the Decayed, Missing, Filled teeth (DMFT) index; Gingival Index; Clinical Attachment Level; Community Periodontal Index, and Plaque index. OHRQoL was evaluated through a modified OH Impact Profile (OHIP-14). Results. The mean DMFT of the examined population was 10.24 (standard deviation [SD] 5.33). Students from East and South Serbia (DMFT=8.69 [SD=4.93]), technical study field (DMFT=8.84 [SD=4.94]), with mother?s having a university degree (DMFT=9.33 [SD=5.15]) and with satisfactory OH (DMFT=8.94 [SD=4.76]) were all significantly associated with lower DMFT. A significantly lower OHRQoL score was observed in students with satisfactory self-reported OH (Score=9.48 [SD=1.44]). The periodontal assessment showed no significant differences across all values of observed indexes. Conclusion. The mean DMFT of Belgrade?s young adults? population has decreased from 1987 to 2012 from 12.5 to 10.4. Self-reported OH is significantly associated with both the DMFT values and OHRQoL.
{"title":"Oral health status of young adults in Serbia - clinical and non-clinical assessment of undergraduate students in Belgrade","authors":"Bogdan Lisul, Djurica Grga","doi":"10.2298/SGS2101007L","DOIUrl":"https://doi.org/10.2298/SGS2101007L","url":null,"abstract":"Introduction. Since 1987, there has been little information on oral health\u0000 (OH) status of young adults aged 19 to 26 in Serbia. This study aimed to\u0000 investigate the trends in OH status and OH-related quality of life (OHRQoL)\u0000 of undergraduate student population in Belgrade in 2012. Materials and\u0000 methods. The study included a total of 699 students of different study\u0000 fields who underwent a dental examination, with 530 of them agreeing to an\u0000 assisted survey and 275 forgoing a periodontal assessment. The survey\u0000 consisted of six sections - basic information, socio-demographic data, oral\u0000 healthcare use and habits, risk factors, OH self-assessment and OHRQoL.\u0000 Clinical assessment was performed using the Decayed, Missing, Filled teeth\u0000 (DMFT) index; Gingival Index; Clinical Attachment Level; Community\u0000 Periodontal Index, and Plaque index. OHRQoL was evaluated through a modified\u0000 OH Impact Profile (OHIP-14). Results. The mean DMFT of the examined\u0000 population was 10.24 (standard deviation [SD] 5.33). Students from East and\u0000 South Serbia (DMFT=8.69 [SD=4.93]), technical study field (DMFT=8.84\u0000 [SD=4.94]), with mother?s having a university degree (DMFT=9.33 [SD=5.15])\u0000 and with satisfactory OH (DMFT=8.94 [SD=4.76]) were all significantly\u0000 associated with lower DMFT. A significantly lower OHRQoL score was observed\u0000 in students with satisfactory self-reported OH (Score=9.48 [SD=1.44]). The\u0000 periodontal assessment showed no significant differences across all values\u0000 of observed indexes. Conclusion. The mean DMFT of Belgrade?s young adults?\u0000 population has decreased from 1987 to 2012 from 12.5 to 10.4. Self-reported\u0000 OH is significantly associated with both the DMFT values and OHRQoL.","PeriodicalId":180624,"journal":{"name":"Serbian Dental Journal","volume":"55 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":"121280427","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}
Nataša Puškar, Milica Puskar, Milica Jeremic-Knezevic, Daniela Djurovic-Koprivica, L. Andrijevic
Introduction. Saliva plays an important role in maintaining oral health. Its buffer capacity helps neutralise acidic products from food, drinks and dental plaque. Saliva composition, quantitative and qualitative properties, such as acidity, are associated with the occurrence of dental caries, non-carious lesions and periodontitis. The aim of the study was to examine the change in salivary acidity after taking carbonated mineral water and sugar-sweetened carbonated soda in subjects aged 18 to 25 years. Materials and method. The study research was conducted at the Dentistry Clinic of Vojvodina on 30 adult subjects. Salivary acidity was measured with a digital pH meter before, and 5, 10 and 20 minutes after taking 200 ml of carbonated mineral water and 200 ml of sugar-sweetened carbonated soda. The obtained results were statistically processed by mixed, combined analysis of variance. Results. Consumption of carbonated mineral water and sugar-sweetened carbonated soda led to a change in salivary acidity in the examined time intervals. Carbonated mineral water reduced the salivary acidity, and after 20 minutes the acidity recovers reaching levels close to the initial pH value. After taking sugar-sweetened carbonated soda, the salivary pH value dropped. It reached the lowest mean value 5 and 10 minutes after taking the beverage, and then increased slightly without reaching the initial value. In some subjects, the minimum value of the salivary pH obtained was below the value considered critical for the occurrence of enamel and dentin demineralisation. Conclusion. Carbonated mineral water and sugar-sweetened carbonated soda affected the salivary pH value within a period of 20 minutes after consumption. Consuming sugar-sweetened carbonated soda can have adverse effects on oral health.
{"title":"The effect of sugar-sweetened carbonated soda and carbonated mineral water on the salivary pH value","authors":"Nataša Puškar, Milica Puskar, Milica Jeremic-Knezevic, Daniela Djurovic-Koprivica, L. Andrijevic","doi":"10.2298/sgs2204160p","DOIUrl":"https://doi.org/10.2298/sgs2204160p","url":null,"abstract":"Introduction. Saliva plays an important role in maintaining oral health. Its\u0000 buffer capacity helps neutralise acidic products from food, drinks and\u0000 dental plaque. Saliva composition, quantitative and qualitative properties,\u0000 such as acidity, are associated with the occurrence of dental caries,\u0000 non-carious lesions and periodontitis. The aim of the study was to examine\u0000 the change in salivary acidity after taking carbonated mineral water and\u0000 sugar-sweetened carbonated soda in subjects aged 18 to 25 years. Materials\u0000 and method. The study research was conducted at the Dentistry Clinic of\u0000 Vojvodina on 30 adult subjects. Salivary acidity was measured with a digital\u0000 pH meter before, and 5, 10 and 20 minutes after taking 200 ml of carbonated\u0000 mineral water and 200 ml of sugar-sweetened carbonated soda. The obtained\u0000 results were statistically processed by mixed, combined analysis of\u0000 variance. Results. Consumption of carbonated mineral water and\u0000 sugar-sweetened carbonated soda led to a change in salivary acidity in the\u0000 examined time intervals. Carbonated mineral water reduced the salivary\u0000 acidity, and after 20 minutes the acidity recovers reaching levels close to\u0000 the initial pH value. After taking sugar-sweetened carbonated soda, the\u0000 salivary pH value dropped. It reached the lowest mean value 5 and 10 minutes\u0000 after taking the beverage, and then increased slightly without reaching the\u0000 initial value. In some subjects, the minimum value of the salivary pH\u0000 obtained was below the value considered critical for the occurrence of\u0000 enamel and dentin demineralisation. Conclusion. Carbonated mineral water and\u0000 sugar-sweetened carbonated soda affected the salivary pH value within a\u0000 period of 20 minutes after consumption. Consuming sugar-sweetened carbonated\u0000 soda can have adverse effects on oral health.","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":"115055949","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. Planning fixed prosthodontic reconstruction can be challenging task in everyday practice. When the last tooth in dental arch is missing, a single implant-supported crown is recommended. With the evolution of digital technology, it became possible that these restorations can be made using completely digital approach. The aim of this case report was to present complete clinical procedure of making implant supported single zirconia crowns for posterior teeth using completely digital approach. Case report. A 53-year-old patient presented to the dental office with missing both first molars in the lower dental arch. The decision was made to make two implant-supported single screw-retained crowns, using digital approach. Intraoral scanning of the soft tissues and the implants? position was done using intraoral scanner Medit i500. The laboratory steps followed: computer-assisted design (CAD) and computer-assisted manufacturing (CAM) of zirconia crowns. Conclusion. Implant-supported single crowns for posterior teeth are an excellent solution for patients when the last tooth in dental arch is missing. Digital approach -from initial intraoral scanning (IOS), to designing the restoration in software and further processing of monolithic CAD/CAM generated crowns out of zirconia gives predictable, highly esthetic and functional results for implant-supported single crowns.
{"title":"Implant-supported single zirconia crowns for posterior teeth using completely digital work-flow: A case report","authors":"M. Ljubičić, M. Živković, Bogdan Bulic","doi":"10.2298/sgs2103153l","DOIUrl":"https://doi.org/10.2298/sgs2103153l","url":null,"abstract":"Introduction. Planning fixed prosthodontic reconstruction can be challenging\u0000 task in everyday practice. When the last tooth in dental arch is missing, a\u0000 single implant-supported crown is recommended. With the evolution of digital\u0000 technology, it became possible that these restorations can be made using\u0000 completely digital approach. The aim of this case report was to present\u0000 complete clinical procedure of making implant supported single zirconia\u0000 crowns for posterior teeth using completely digital approach. Case report. A\u0000 53-year-old patient presented to the dental office with missing both first\u0000 molars in the lower dental arch. The decision was made to make two\u0000 implant-supported single screw-retained crowns, using digital approach.\u0000 Intraoral scanning of the soft tissues and the implants? position was done\u0000 using intraoral scanner Medit i500. The laboratory steps followed:\u0000 computer-assisted design (CAD) and computer-assisted manufacturing (CAM) of\u0000 zirconia crowns. Conclusion. Implant-supported single crowns for posterior\u0000 teeth are an excellent solution for patients when the last tooth in dental\u0000 arch is missing. Digital approach -from initial intraoral scanning (IOS), to\u0000 designing the restoration in software and further processing of monolithic\u0000 CAD/CAM generated crowns out of zirconia gives predictable, highly esthetic\u0000 and functional results for implant-supported single crowns.","PeriodicalId":180624,"journal":{"name":"Serbian Dental Journal","volume":"12 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":"114286433","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. The aim of this informative paper is to show the importance and key role of atomic force microscopy, on one hand, in quantitative determination of the physicochemical changes on the surfaces of dental materials due to their exposure to acids and, on the other hand, in quantification of changes in the physicochemical properties of the surfaces of dental alloys after their processing and the consequences of the processing itself on the quality and applicability of the same. Methods. Atomic force microscopy was used to obtain data quantitatively describing nanoscale changes in Co-Cr dental alloys caused by exposure to formic acid over a 7-day period and to describe the effects of electropolishing and black brush polishing on the surface roughness of dental alloys. Results. Analysis of the topography and roughness of the surfaces of alloys treated with a black brush and electropolishing shows that both methods are applicable in dentistry and leave defects of insufficient size for microorganisms. Treatment of the studied alloys with formic acid leads to an increase in surface roughness, indicating the presence of corrosion processes, especially in the areas of interdentritic nanocrystals. Conclusion. The aforementioned effects of processing and treatment of Co-Cr alloys can be followed in great detail using the technique of atomic force microscopy, especially by analysing the surface topography and its roughness. The method is of extraordinary importance for the evaluation of the use of Co-Cr alloys in dentistry.
{"title":"Application of atomic force microscopy in investigations of dental alloy surfaces","authors":"S. Šegota","doi":"10.2298/sgs2301033s","DOIUrl":"https://doi.org/10.2298/sgs2301033s","url":null,"abstract":"Introduction. The aim of this informative paper is to show the importance and\u0000 key role of atomic force microscopy, on one hand, in quantitative\u0000 determination of the physicochemical changes on the surfaces of dental\u0000 materials due to their exposure to acids and, on the other hand, in\u0000 quantification of changes in the physicochemical properties of the surfaces\u0000 of dental alloys after their processing and the consequences of the\u0000 processing itself on the quality and applicability of the same. Methods.\u0000 Atomic force microscopy was used to obtain data quantitatively describing\u0000 nanoscale changes in Co-Cr dental alloys caused by exposure to formic acid\u0000 over a 7-day period and to describe the effects of electropolishing and\u0000 black brush polishing on the surface roughness of dental alloys. Results.\u0000 Analysis of the topography and roughness of the surfaces of alloys treated\u0000 with a black brush and electropolishing shows that both methods are\u0000 applicable in dentistry and leave defects of insufficient size for\u0000 microorganisms. Treatment of the studied alloys with formic acid leads to an\u0000 increase in surface roughness, indicating the presence of corrosion\u0000 processes, especially in the areas of interdentritic nanocrystals.\u0000 Conclusion. The aforementioned effects of processing and treatment of Co-Cr\u0000 alloys can be followed in great detail using the technique of atomic force\u0000 microscopy, especially by analysing the surface topography and its\u0000 roughness. The method is of extraordinary importance for the evaluation of\u0000 the use of Co-Cr alloys in dentistry.","PeriodicalId":180624,"journal":{"name":"Serbian Dental Journal","volume":"1 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":"129761443","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}
S. Živković, Marijana Popović-Bajić, Milica Jovanovic-Medojevic, Jelena Neskovic
More certain therapeutic and significantly facilitated solution of everyday endodontic problems are provided by the introduction of NiTi rotary files in endodontic practice and their proper application. However, their widespread use has caused more and more frequent fractures and has become a significant frustrating factor that diminishes their numerous benefits. Torsional stress and cyclic fatigue are the main reasons for the occurrence of a fracture, and the frequency of NiTi file fractures is exactly proportional to the degree of bending of the canal, knowledge of the features of the file, ie. the skill and expertise of the therapist. The most dominant factor for the occurrence of fractures is the dentist who, in addition to manual dexterity, must have a good knowledge of the anatomy of various canal systems and file design in order to make the best choice for each individual case. Properly formed access cavity and knowledge of the working part of NiTi files enable maximum realization of endodontic skills, increased efficiency of intervention and reduced possibility of error during canal instrumentation. The special treatment of NiTi alloy and new solutions related to the design of the working part have significantly increased file flexibility and resistance to cyclic fatigue. Specific design (reduced number of threads, change of conicity, interruption of blade continuity), reduced engagement of file, ie. change of dynamics of movement in the canal (full rotation, reciprocal, eccentric, transaxial), as well as reduced number of processing files, have also significantly influenced the reduction of fracture risks. The aim of this paper was to analyze the most common reasons for the fracture of NiTi files and emphasize measures and factors that can increase their safe use and reduce complications during canal instrumentation.
{"title":"How to prevent fracture of NiTi files","authors":"S. Živković, Marijana Popović-Bajić, Milica Jovanovic-Medojevic, Jelena Neskovic","doi":"10.2298/sgs2102086z","DOIUrl":"https://doi.org/10.2298/sgs2102086z","url":null,"abstract":"More certain therapeutic and significantly facilitated solution of everyday\u0000 endodontic problems are provided by the introduction of NiTi rotary files in\u0000 endodontic practice and their proper application. However, their widespread\u0000 use has caused more and more frequent fractures and has become a significant\u0000 frustrating factor that diminishes their numerous benefits. Torsional stress\u0000 and cyclic fatigue are the main reasons for the occurrence of a fracture,\u0000 and the frequency of NiTi file fractures is exactly proportional to the\u0000 degree of bending of the canal, knowledge of the features of the file, ie.\u0000 the skill and expertise of the therapist. The most dominant factor for the\u0000 occurrence of fractures is the dentist who, in addition to manual dexterity,\u0000 must have a good knowledge of the anatomy of various canal systems and file\u0000 design in order to make the best choice for each individual case. Properly\u0000 formed access cavity and knowledge of the working part of NiTi files enable\u0000 maximum realization of endodontic skills, increased efficiency of\u0000 intervention and reduced possibility of error during canal instrumentation.\u0000 The special treatment of NiTi alloy and new solutions related to the design\u0000 of the working part have significantly increased file flexibility and\u0000 resistance to cyclic fatigue. Specific design (reduced number of threads,\u0000 change of conicity, interruption of blade continuity), reduced engagement of\u0000 file, ie. change of dynamics of movement in the canal (full rotation,\u0000 reciprocal, eccentric, transaxial), as well as reduced number of processing\u0000 files, have also significantly influenced the reduction of fracture risks.\u0000 The aim of this paper was to analyze the most common reasons for the\u0000 fracture of NiTi files and emphasize measures and factors that can increase\u0000 their safe use and reduce complications during canal instrumentation.","PeriodicalId":180624,"journal":{"name":"Serbian Dental Journal","volume":"43 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":"129345141","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. Biočanin, Djordje Pejanović, Djordje Antonijević, Marija Ciric, Z. Tambur, S. Zarić
Introduction. Implant placement with simultaneous bone augmentation presents procedure with high risk of complications. In those situations, one of the surgical procedures with promising outcomes is the split crest technique. Case report. A 69-year-old edentulous patient was referred to the Clinic of Oral Surgery, at the Faculty of Dentistry in Pancevo. The width of the mandibular alveolar ridge in the inter-canine region was 2 mm. For the ridge splitting and expansion, a special split and expansion kit was used (Esset KitR, Osstem, South Korea). The procedure started with crestal remover carbide cylindrical bur of 7 mm diameter for flattening of the alveolar ridge to the width of 4 mm. Then, a sharp lance drill was used to mark the places for implant osteotomies and placement. After that, 1.8 mm twist drill was used to prepare a bed of 10 mm depth, and a 13 mm saw was directed vertically. Set of expansion drills were used to expand the alveolar ridge gradually. Two implants 3.5x10 mm each (TSIII SAR, Osstem, South Korea) were inserted in the region of lower canines and the space between split buccal and lingual bone lamellae remained empty. Initial stability of inserted implants was assessed by implant stability quotient (ISQ). The values for implant stability were high for both inserted implants (98 and 93). After the surgical procedure, a control CBCT was done. The wound healed uneventfully. Conclusion. Split crest technique seems to be a predictable alternative for implant placement in narrow alveolar ridges.
{"title":"Split crest technique - an effective method in dental implantology for narrow ridges: A case report","authors":"V. Biočanin, Djordje Pejanović, Djordje Antonijević, Marija Ciric, Z. Tambur, S. Zarić","doi":"10.2298/sgs2301039b","DOIUrl":"https://doi.org/10.2298/sgs2301039b","url":null,"abstract":"Introduction. Implant placement with simultaneous bone augmentation presents\u0000 procedure with high risk of complications. In those situations, one of the\u0000 surgical procedures with promising outcomes is the split crest technique.\u0000 Case report. A 69-year-old edentulous patient was referred to the Clinic of\u0000 Oral Surgery, at the Faculty of Dentistry in Pancevo. The width of the\u0000 mandibular alveolar ridge in the inter-canine region was 2 mm. For the ridge\u0000 splitting and expansion, a special split and expansion kit was used (Esset\u0000 KitR, Osstem, South Korea). The procedure started with crestal remover\u0000 carbide cylindrical bur of 7 mm diameter for flattening of the alveolar\u0000 ridge to the width of 4 mm. Then, a sharp lance drill was used to mark the\u0000 places for implant osteotomies and placement. After that, 1.8 mm twist drill\u0000 was used to prepare a bed of 10 mm depth, and a 13 mm saw was directed\u0000 vertically. Set of expansion drills were used to expand the alveolar ridge\u0000 gradually. Two implants 3.5x10 mm each (TSIII SAR, Osstem, South Korea) were\u0000 inserted in the region of lower canines and the space between split buccal\u0000 and lingual bone lamellae remained empty. Initial stability of inserted\u0000 implants was assessed by implant stability quotient (ISQ). The values for\u0000 implant stability were high for both inserted implants (98 and 93). After\u0000 the surgical procedure, a control CBCT was done. The wound healed\u0000 uneventfully. Conclusion. Split crest technique seems to be a predictable\u0000 alternative for implant placement in narrow alveolar ridges.","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":"124356663","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}
Igor Radovic, Lado Davidović, Smiljka Cicmil, S. Tomić, D. Ivanović, Ljiljana Bjelović
Many of medicaments used historically in root canal treatment have been shown to be cytotoxic. Paraformaldehid agents (such as Toxavit and Depulpin) are used to devitalize inflamed pulp when local anesthesia is ineffective. The misuse of pulp devitalizing agents may cause damage to gingiva and alveolar bone. This case report demonstrates complications arising after application of paraformaldehyde containing paste, necrosis of the gingiva and alveolar cortical bone, which resulted in great loss of supporting bone. Surgical intervention was required wherein necrotic bone was removed and bone defect was filled with xenograft of bovine origin. After three months endodontic treatment was performed. After the treatment, the patient?s complaints were resolved. The use of paraformaldehyde-based agents during endodontic therapy requires special caution.
{"title":"Maxillary bone necrosis following the use of formaldehyde containing paste: Case report","authors":"Igor Radovic, Lado Davidović, Smiljka Cicmil, S. Tomić, D. Ivanović, Ljiljana Bjelović","doi":"10.2298/sgs2003165r","DOIUrl":"https://doi.org/10.2298/sgs2003165r","url":null,"abstract":"Many of medicaments used historically in root canal treatment have been shown\u0000 to be cytotoxic. Paraformaldehid agents (such as Toxavit and Depulpin) are\u0000 used to devitalize inflamed pulp when local anesthesia is ineffective. The\u0000 misuse of pulp devitalizing agents may cause damage to gingiva and alveolar\u0000 bone. This case report demonstrates complications arising after application\u0000 of paraformaldehyde containing paste, necrosis of the gingiva and alveolar\u0000 cortical bone, which resulted in great loss of supporting bone. Surgical\u0000 intervention was required wherein necrotic bone was removed and bone defect\u0000 was filled with xenograft of bovine origin. After three months endodontic\u0000 treatment was performed. After the treatment, the patient?s complaints were\u0000 resolved. The use of paraformaldehyde-based agents during endodontic therapy\u0000 requires special caution.","PeriodicalId":180624,"journal":{"name":"Serbian Dental Journal","volume":"20 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":"121957667","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, Alena Zdravković, Mina Medojevic, D. Stratimirovic
Introduction. Modern endodontic procedure implies the use of rotary Ni-Ti instruments during chemomechanical treatment of root canals. The aim of this study is to analyze the surfaces of new (unused) rotary endodontic instruments using the SEM-EDS method and determine how frequently manufacture defects or impurities appear on their working surfaces. Material and method. Five new different sets of rotary endodontic Ni-Ti instruments were included in this study: K3, Mtwo, ProTaper Universal, HyFlex and BioRaCe. The working part of endodontic instrument was analyzed using SEMEDS method (magnifications ?150 to ?2000), which determined the morphological characteristics of the instrument surface and chemical composition of the found impurities. Statistical analysis was performed using the Fisher?s test (p < 0.05). Results. The results of SEM-EDS analysis showed that there is no new instrument without defects on its surface. The most common defects were observed in K3 (27.43%) and ProTaper Universal group (27.21%) and the least were in BioRaCe instruments (7.67%). The most common type of defect in tested instruments was fretting. In addition, the presence of debris and metal strips was found on all instruments, while corrosion of the working part was observed only in K3, ProTaper Universal and Mtwo systems in a small percentage. Conclusion. Based on the results of this research, it can be concluded that manufacturing defects were noticed in all examined instruments. The most common defect is pitting. Impurities such as debris and metal strips have also been registered. No organic debris was observed on electropolished surface of BioRaCe instruments, but a small percentage of other types of defects were registered.
{"title":"Evaluation of surface characteristics of new rotary nickel-titanium instruments - SEM-EDS analysis","authors":"Milica Jovanovic-Medojevic, Alena Zdravković, Mina Medojevic, D. Stratimirovic","doi":"10.2298/SGS2101019J","DOIUrl":"https://doi.org/10.2298/SGS2101019J","url":null,"abstract":"Introduction. Modern endodontic procedure implies the use of rotary Ni-Ti\u0000 instruments during chemomechanical treatment of root canals. The aim of this\u0000 study is to analyze the surfaces of new (unused) rotary endodontic\u0000 instruments using the SEM-EDS method and determine how frequently\u0000 manufacture defects or impurities appear on their working surfaces. Material\u0000 and method. Five new different sets of rotary endodontic Ni-Ti instruments\u0000 were included in this study: K3, Mtwo, ProTaper Universal, HyFlex and\u0000 BioRaCe. The working part of endodontic instrument was analyzed using SEMEDS\u0000 method (magnifications ?150 to ?2000), which determined the morphological\u0000 characteristics of the instrument surface and chemical composition of the\u0000 found impurities. Statistical analysis was performed using the Fisher?s test\u0000 (p < 0.05). Results. The results of SEM-EDS analysis showed that there is no\u0000 new instrument without defects on its surface. The most common defects were\u0000 observed in K3 (27.43%) and ProTaper Universal group (27.21%) and the least\u0000 were in BioRaCe instruments (7.67%). The most common type of defect in\u0000 tested instruments was fretting. In addition, the presence of debris and\u0000 metal strips was found on all instruments, while corrosion of the working\u0000 part was observed only in K3, ProTaper Universal and Mtwo systems in a small\u0000 percentage. Conclusion. Based on the results of this research, it can be\u0000 concluded that manufacturing defects were noticed in all examined\u0000 instruments. The most common defect is pitting. Impurities such as debris\u0000 and metal strips have also been registered. No organic debris was observed\u0000 on electropolished surface of BioRaCe instruments, but a small percentage of\u0000 other types of defects were registered.","PeriodicalId":180624,"journal":{"name":"Serbian Dental Journal","volume":"83 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":"115860875","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. In the period from 2004 to 2020, many reforms were implemented in the health sector of the Republic of Serbia and it?s financing. The aim of this work was to provide an insight into foundations on which healthcare was based in the Republic of Serbia in the period from 2004 to 2020 and review the reform changes in the healthcare sector and it?s financing. Material and method. A retrospective analysis of data from the National Health Account of the Institute of Public Health of Serbia, the regulations of the Republic Health Insurance Fund, reports of the Ministry of Health as well as laws and regulations related to the health sector was performed. Results. The results of the analysis showed that the State health sector represented the foundation of the health system in the Republic of Serbia in the observed period. Of the total health financing, it was estimated that about sixty percent were public financing schemes, and about forty percent belonged to private schemes, with a large part of private schemes being out-of-pocket payments. Conclusion. The general conclusion of the analysis is that in the observed period, within the framework of the reform changes, Serbia had a good system of exemption from participation, but that out-of-pocket payments for certain health services and corrupt payments represented a barrier to health care.
{"title":"Overview of changes in the health sector and its financing in the Republic of Serbia in the period 2004-2020","authors":"Milena Gajic-Stevanovic, Ivana Stevanović","doi":"10.2298/sgs2302095g","DOIUrl":"https://doi.org/10.2298/sgs2302095g","url":null,"abstract":"Introduction. In the period from 2004 to 2020, many reforms were implemented\u0000 in the health sector of the Republic of Serbia and it?s financing. The aim\u0000 of this work was to provide an insight into foundations on which healthcare\u0000 was based in the Republic of Serbia in the period from 2004 to 2020 and\u0000 review the reform changes in the healthcare sector and it?s financing.\u0000 Material and method. A retrospective analysis of data from the National\u0000 Health Account of the Institute of Public Health of Serbia, the regulations\u0000 of the Republic Health Insurance Fund, reports of the Ministry of Health as\u0000 well as laws and regulations related to the health sector was performed.\u0000 Results. The results of the analysis showed that the State health sector\u0000 represented the foundation of the health system in the Republic of Serbia in\u0000 the observed period. Of the total health financing, it was estimated that\u0000 about sixty percent were public financing schemes, and about forty percent\u0000 belonged to private schemes, with a large part of private schemes being\u0000 out-of-pocket payments. Conclusion. The general conclusion of the analysis\u0000 is that in the observed period, within the framework of the reform changes,\u0000 Serbia had a good system of exemption from participation, but that\u0000 out-of-pocket payments for certain health services and corrupt payments\u0000 represented a barrier to health care.","PeriodicalId":180624,"journal":{"name":"Serbian Dental Journal","volume":"59 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":"130243178","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}