Scripta Scientifica Medicinae Dentalis最新文献

{"title":"Nd:YAG lasers in nonsurgical periodontal treatment - a literature review","authors":"M. Miteva","doi":"10.14748/SSMD.V5I1.5922","DOIUrl":"https://doi.org/10.14748/SSMD.V5I1.5922","url":null,"abstract":"Nonsurgical periodontal therapy addresses debriding the area of bacteria, endotoxins, and hard deposits from the root surface to restore gingival health.The instrumentation is focused on the root surface and most often accomplished through manual and power scaling. Nowadays lasers can alsobe used for root debridement.","PeriodicalId":303832,"journal":{"name":"Scripta Scientifica Medicinae Dentalis","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114318723","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":"Production of high-quality temporary crowns and bridges by stereolithography","authors":"T. Dikova","doi":"10.14748/ssmd.v5i1.5863","DOIUrl":"https://doi.org/10.14748/ssmd.v5i1.5863","url":null,"abstract":"Introduction: Temporary crowns and bridges are the main elements in the treatment with fixed partial dentures. They are usually manufactured from methacrylate polymers and composites by heat-curing or CAD/CAM milling. Additive technologies (ATs) offer a number of advantages in the production of temporary dental restorations. However, there is a lack of information about the application of AT for manufacturing of provisional prostheses due to the multiple variants and complexity of their design as well as the wide variety of the 3D printing processes. Aim: The aim of the present paper was to establish the peculiarities in the production of high-quality temporary crowns and bridges by stereolithography (SLA) with digital light projection (DLP). Materials and Methods: Two groups of samples - cubic (5 mm x 5 mm x 5 mm) and four-part dental bridges (1-st premolar to 2-nd molar) were printed with different layer thickness - 35 µm and 50 µm from NextDent C+B polymer using RapidShape D30 . Results and Discussion: It was established that for effective production of temporary crowns and bridges with high dimensional accuracy and surface smoothness, it is necessary to take into account the peculiarities of the 3D printing process and to make corrections still at the stage of virtual model generation. Individual corrections of the dimensions along the separate axes of the virtual model have to be done with correction coefficients, depending on the construction type - crown or bridge. In order to obtain high smoothness, the construction should be positioned with the vertical axes of the teeth parallel to the printing direction (Z-axis). The number of the supports has to be increased (≥4 per tooth) for reduction of the deformations during 3D printing and final photopolymerization. Conclusion: The findings in the present study could be very helpful in the development of proper construction design and technological process for improving the quality of temporary restorations.","PeriodicalId":303832,"journal":{"name":"Scripta Scientifica Medicinae Dentalis","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128216210","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":"Emdogain (EMD) and platelet-rich plasma (PRP) in periodontal regeneration","authors":"M. Miteva","doi":"10.14748/ssmd.v5i1.5903","DOIUrl":"https://doi.org/10.14748/ssmd.v5i1.5903","url":null,"abstract":"Periodontitis is a major cause of adult tooth loss and is characterized by bacteria-induced inflammation and periodontal destruction. The ultimate goal of periodontal therapy is not only to slow down the development of periodontal disease, but also to regenerate the architectural and functional integrity of the periodontal complex, which includes the formation of new cementum together with a new connective tissue attachment between the newly formed bone and cementum.Periodontitis is a major cause of adult tooth loss and is characterized by bacteria-induced inflammation and periodontal destruction. The ultimate goal of periodontal therapy is not only to slow down the development of periodontal disease, but also to regenerate the architectural and functional integrity of the periodontal complex, which includes the formation of new cementum together with a new connective tissue attachment between the newly formed bone and cementum.","PeriodicalId":303832,"journal":{"name":"Scripta Scientifica Medicinae Dentalis","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129108354","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":"Bone Block Augmentation - A Long Term Follow-Up","authors":"S. Peev, Elitsa Sabeva","doi":"10.14748/SSMD.V4I2.5652","DOIUrl":"https://doi.org/10.14748/SSMD.V4I2.5652","url":null,"abstract":"Introduction Autogenous bone block grafting is used for both vertical and horizontal augmentation of the upper and lower jaw. The bone block could be provided using extraoral or intraoral donor location. Aim The aim of this study was to observe the survival rate, the marginal bone level and the bleeding on probing (BOP) for a period of 4 to 6 years of implants, inserted in autogenous bone block graft. Materials and Methods We considered advanced horizontal bone loss, where guided bone regeneration with simultaneous implant placement could not be performed and/or vertical bone loss, where vertical augmentation of the alveolar  bone of more than 3 to 6 mm is required,  as indications for the bone block grafting procedure. As an intraoral donor site was used the mental area. Results and Discussion  The mean observation period was 4.81 years. The mean marginal bone loss was 0.442 mm, as bone resorption was established in 48% of all cases, BOP was observed in 17.7 % of the cases. No correlation was found between BOP and bone loss. The survival rate of the implants placed into bone augmented using autogenous bone block graft was 98.7 %. Conclusion For an implant placement we considered a period of 4 months after the procedure enough to provide high survival rate of the implants. The implants placed in bone augmented using autogenous bone block grafting according to our methodology demonstrated high survival rate and unstable marginal bone level.","PeriodicalId":303832,"journal":{"name":"Scripta Scientifica Medicinae Dentalis","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126621251","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":"Conservative management of periapical lesions of endodontic origin - a review of the different techniques","authors":"Tsvetelina Borisova-Papancheva, Slavena Svetlozarova","doi":"10.14748/SSMD.V4I2.5793","DOIUrl":"https://doi.org/10.14748/SSMD.V4I2.5793","url":null,"abstract":"Introduction : Periapical lesions of endodontic origin are common pathological conditions affecting the periradicular tissues. Mainly responsible for the initiation and progression of apical periodontitis is the microbial infection of pulpal tissues. There are different conservative techniques that can be applied in order to establish a healing process of periapical lesions of endodontic origin. Materials and Methods : We have conducted a research that covers related articles and publications, in order to review the different conservative management treatment techniques for lesions affecting the periradicular tissues. Results: Different non-surgical management techniques have been described, namely: conservative root canal therapy, decompression technique, a method using calcium hydroxide, aspiration-irrigation technique, lesion sterilization and repair therapy, active non-surgical decompression technique, and the apexum procedure. Conclusion: All of the described management techniques present with advantages, disadvantages and specific indications that should be taken into consideration when managing the treatment plan of every specific clinical case.","PeriodicalId":303832,"journal":{"name":"Scripta Scientifica Medicinae Dentalis","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130998619","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":"Removal of calcium hydroxide medicament from root canal walls - a review of the different techniques","authors":"Tsvetelina Borisova-Papancheva, Slavena Svetlozarova","doi":"10.14748/SSMD.V4I2.5792","DOIUrl":"https://doi.org/10.14748/SSMD.V4I2.5792","url":null,"abstract":"Introduction: Calcium hydroxide is used widely as an intracanal medication dressing due to its antibacterial activity. It is left into the root canal for a different period of time. Intracanal calcium hydroxide is usually removed by the use of instrumentation and irrigation. The residual material may interact with the root canal sealer and interfere with its sealing ability. Aim : The aim of this article is to review the literature in order to compare the main techniques that can be used to remove calcium hydroxide from the root canal system. Results: Intracanal calcium hydroxide is usually removed by the use of continuous irrigation, in conjunction with rotary or hand instruments, sonic or ultrasonic activation of the irrigants. Conclusion: None of the described techniques is able to provide a complete removal of the intracanal calcium hydroxide from the root canal walls in all clinical cases, because of the complexity of the root canal system of every tooth. There is no standard protocol and different techniques should be applied and combined in order to achieve clean root canal walls before the definitive obturation of the root canal system.","PeriodicalId":303832,"journal":{"name":"Scripta Scientifica Medicinae Dentalis","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130054090","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":"Comparison between the influence of implant diameter and implant length on the primary stability","authors":"Elitsa Sabeva","doi":"10.14748/SSMD.V4I2.5635","DOIUrl":"https://doi.org/10.14748/SSMD.V4I2.5635","url":null,"abstract":"INTRODUCTION The primary stability is a factor for successful osseointegration of dental implants. It is believed that factors that can increase the contact area between the implant and the bone, such as the implant shape, length, and diameter, can also increase the primary stability. AIM  The aim of this study was to determine whether the increase of implant length or the increase of implant diameter would contribute more to the enhancement of primary stability. MATERIALS AND METHODS The implant primary stability of 60 implants distributed in 6 groups, according their diameter, length and surface topography was evaluated using three methods: assessment of mean insertion torque, periotest values, and resonance frequency analysis. RESULTS AND DISCUSSION The results demonstrated that the primary stability achieved by increasing the diameter of the implants by 0.7 mm was comparable to that obtained by increasing their length by 2 mm at a smaller diameter (4.1 mm). When the difference in the diameter increased more (from 0.7 mm to 1.5 mm, when comparing the 3.3 mm/10 mm and 4.8 mm/8 mm implants), the increase of the length of the smaller diameter implants did not result in primary stability values comparable to those obtained during the insertion of  wider and shorter implants. CONCLUSION Considering our results as well as the literature data, we can conclude that the increase of the implant diameter affects more the improving of the primary stability than the increase of the implant length. However, it should be taken into account that this refers to a specific diameter change of 1.5 mm and length change of 2 mm. More studies, including implants with a greater difference in the length and a different diameter to length ratio, are needed to confirm or reject this relation.","PeriodicalId":303832,"journal":{"name":"Scripta Scientifica Medicinae Dentalis","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132128968","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":"Prevalence of dental decay among children suffering from congenital heart diseases","authors":"Teodora Nikolova, R. Andreeva","doi":"10.14748/SSMD.V4I2.5479","DOIUrl":"https://doi.org/10.14748/SSMD.V4I2.5479","url":null,"abstract":"Introduction: In general, dental decay and periodontal diseases have low mortality, but both have high levels of distribution and are responsible for pain in the oral cavity region, loss of teeth, and represent risk factors for other systemic complications, especially among children . Aim: The aim of this article is to assess dental decay prevalence in a group of children with congenital heart diseases (CHDs) and to compare it with the same indicator in a group of healthy, age- and gender-matched controls. Materials and Methods: Subject of monitoring of the prospective clinical research are 100 children from Varna region. Half of them (n=50) were diagnosed with CHDs and the other half (n=50) were healthy controls. Both groups were also divided into two age groups: from 4 to 7 years of age (n CHDs = 25; n Ctr. = 25) and from 8 to 17 years of age (n CHDs = 25; n Ctr. = 25). The dental status was examined and registered according to WHO, using the dmft/DMFT index. Possible risk factors for dental caries development were also registered. Results: Children with CHDs had statistically significant higher mean values of dmft/DMFT indices than healthy controls (age group 4-7 years: 5.5±3.2 vs. 4.3±1.2; age group 8-17 years: 5.6±2.9 vs. 3.6±2.3). The registered fillings among patients with CHDs were scarce. A total of 71% of patients with CHDs were subjected to regular oral medications intake due to the main chronic disease. Children with heart anomalies were mainly of low socio-economic status and had not received more intensive dental prophylaxis than healthy controls. A total of 98% of all examined patients (n=100) were affected by dental decay (dmft/DMFT > 0). Conclusion:  The findings from this research clearly show that the group of children with CHDs are more severely affected by dental decay than the control group of healthy children. Children with CHDs are at disadvantage, because the development of oral diseases in these patients may affect their overall medical condition. Prolonged oral pharmacotherapy and low socio-economic status, which affect oral health, are possible risk factors for dental decay development in these medically compromised children.","PeriodicalId":303832,"journal":{"name":"Scripta Scientifica Medicinae Dentalis","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125524509","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":"An algorithm for treatment of children under general anesthesia","authors":"R. Andreeva","doi":"10.14748/SSMD.V4I2.5626","DOIUrl":"https://doi.org/10.14748/SSMD.V4I2.5626","url":null,"abstract":"Introduction: Children indicated for general anesthesia are those with early childhood caries; with a high degree of anxiety from dental treatment, and those with special needs. Aim: The aim of this article is to create an algorithm for the complex treatment of children under general anesthesia. Materials and Methods: The object of observation were 992 teeth in 124 children with primary dentition, treated under general anesthesia. The treated teeth were separated into two groups with 496 teeth each, depending on the way of treatment. Observation units: count and relative share of tooth-related complications in relation to the used treatment methods. Results and Discussion: In the first examined group all the teeth diagnosed with periodontitis were extracted. The teeth diagnosed with pulpitis, which had a developed apex and no x-ray data of root resorption, were treated with extirpation and filling of the root canals with metapex, followed by obturation with glass ionomer cement (GIC). Only 1.2% (n=3) of them had complications. Conclusion: In order to prevent retreatment, a more radical therapy approach is mandatory. A basic principle in the treatment of these children is that it is consistent with a more severe differential diagnosis, in order to avoid complications. Keywords: general anesthesia, retreatment, radical approach","PeriodicalId":303832,"journal":{"name":"Scripta Scientifica Medicinae Dentalis","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123645171","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":"Determining the color of the teeth by using dental images with isolation of gingival color","authors":"R. Vasileva","doi":"10.14748/SSMD.V4I2.5070","DOIUrl":"https://doi.org/10.14748/SSMD.V4I2.5070","url":null,"abstract":"Introduction As a difficult and subjective process, when we determine the color of the teeth, we often use additional methods. One of the methods for color definition when communicating with a technical dental laboratory is the use of photography. Aim The aim of this study was to compare the color definition using a photo in terms of isolating the gingival color and without isolation of the gingival color. The presence of a background and distracting colors has a serious impact on color determination. Placed under different conditions, the colors are interpreted in a different way. For the needs of dental medicine the accurate color determination is of vital importance. This is particularly true in case of absence of a direct communication between a laboratory and a dental office. The actual color definition is done by a photo. Materials and Methods For the purpose of the study, a Shofu Eye Special 2 camera was used, specially created for the dental photography needs. The device had a built-in menu option to isolate the gingiva. The survey methodology included visual color determination of 2 images with a placed coloring (shade master) of Vita. Results The results of this study, show a unique advantage when defining the color with gingival color isolation. This happens especially visibly in a closer contact of the color standard with the masked background. Conclusion The color definition option by masking the gingival background is highly effective and convenient to determine the color of teeth for the needs of dentistry.","PeriodicalId":303832,"journal":{"name":"Scripta Scientifica Medicinae Dentalis","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114099902","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}