White spot infiltration emerged as an alternative of non-invasive treatment to halt progression of the lesion, through the use of low viscosity resins that would permeate the porous enamel and form a physical barrier ...White spot infiltration emerged as an alternative of non-invasive treatment to halt progression of the lesion, through the use of low viscosity resins that would permeate the porous enamel and form a physical barrier that would prevent the acid diffusion produced by micro-organisms. Purpose: To compare penetration levels in artificial white spot lesions, of infiltrant resin ICON™and 2 conventional adhesives systems, XP-Bond™and Single Bond 2™. Methodology: White spot lesions (ICDAS code 2) were caused in 75 premolars or third molars were extracted in good conditions, by immersion in a 0.1 M lactic acid solution (pH 4.5) at 37℃ for 8 weeks. They were divided randomly into 3 groups of 25 samples and applied the following resins, Group A: ICON™, B: XP-Bond™and C: Single Bond 2™. Subsequently, the enamel was removed with hydrochloric acid to expose resin saturated area and the samples were metalized with Au-Pd for SEM observation. The resin tags lengths were measured on microphotographs through software, and the values were analyzed with the statistics ANOVA and Scheffé post-test. Results: There were significant differences (p ™(82.7 μm ± 26.8 μm) compared to adhesive systems XP-Bond™(58.5 μm ± 29.3 μm) and Single Bond 2™(44.8 μm ± 32.5 μm). We found no significant differences between the two adhesive systems (p > 0.05). Conclusion: Under the conditions tested, the penetration of infiltrant ICON was significantly higher than the adhesive systems;however, it removes the surface layer of the enamel.展开更多
Orthodontic treatment offers great advantages in improving facial and smile aesthetics, self-confidence and the function of the stomatognathic apparatus. The pursuit of these advantages makes use of orthodontic applia...Orthodontic treatment offers great advantages in improving facial and smile aesthetics, self-confidence and the function of the stomatognathic apparatus. The pursuit of these advantages makes use of orthodontic appliances that could be fixed or removable. However, it’s worth stating that these appliances interfere with tooth brushing, making it more difficult to brush teeth effectively. Orthodontics appliances therefore promote the accumulation of dental plaque, which results in both quantitative and qualitative changes in the oral microbiota, hence, exposing patients to several adverse effects such as White spot lesions, dental caries, periodontal pathologies and halitosis. For this reason, oral assessment of patients before, during and after treatment is necessary as well as oral hygiene instructions and motivation. Orthodontists therefore, should educate patients on oral and periodontal hygiene in order to control dental and periodontal complications. Prescriptions of plaque control materials adapted to each patient are done in order to optimize the final result and minimize unwanted complications.展开更多
目的:对国内外近二十年正畸龋白斑研究现状、热点及研究趋势进行可视化分析。方法:检索2000~2022年发表于Web of Science(WoS)核心合集和中国知网(CNKI)数据库有关龋白斑的研究文献。采用Excel和CiteSpace 6.1.R2软件对国内外文献进行...目的:对国内外近二十年正畸龋白斑研究现状、热点及研究趋势进行可视化分析。方法:检索2000~2022年发表于Web of Science(WoS)核心合集和中国知网(CNKI)数据库有关龋白斑的研究文献。采用Excel和CiteSpace 6.1.R2软件对国内外文献进行回顾性计量分析并绘制可视化科学知识图谱。结果:经筛选国内外发表有关龋白斑的文献共9487篇,其中WoS核心合集8606篇,CNKI数据库881篇。WoS关于龋白斑的研究热点集中在儿童早期龋、变异链球菌、激光荧光检测等;CNKI数据库中的研究热点可归纳为白垩斑、釉质脱矿和再矿化以及氟保护剂等,其中黏结剂剪切强度是国内外共同关注的研究热点。国外研究机构之间合作紧密,国内则形成以四川大学华西口腔医院为核心研究机构的研究团体,其他院校相互间合作较少。结论:龋病管理、渗透树脂可能是未来龋白斑研究趋势,国内学者应更加积极地开展跨学科、跨单位以及国际间的交流合作,产出更多高质量的科研成果。展开更多
文摘White spot infiltration emerged as an alternative of non-invasive treatment to halt progression of the lesion, through the use of low viscosity resins that would permeate the porous enamel and form a physical barrier that would prevent the acid diffusion produced by micro-organisms. Purpose: To compare penetration levels in artificial white spot lesions, of infiltrant resin ICON™and 2 conventional adhesives systems, XP-Bond™and Single Bond 2™. Methodology: White spot lesions (ICDAS code 2) were caused in 75 premolars or third molars were extracted in good conditions, by immersion in a 0.1 M lactic acid solution (pH 4.5) at 37℃ for 8 weeks. They were divided randomly into 3 groups of 25 samples and applied the following resins, Group A: ICON™, B: XP-Bond™and C: Single Bond 2™. Subsequently, the enamel was removed with hydrochloric acid to expose resin saturated area and the samples were metalized with Au-Pd for SEM observation. The resin tags lengths were measured on microphotographs through software, and the values were analyzed with the statistics ANOVA and Scheffé post-test. Results: There were significant differences (p ™(82.7 μm ± 26.8 μm) compared to adhesive systems XP-Bond™(58.5 μm ± 29.3 μm) and Single Bond 2™(44.8 μm ± 32.5 μm). We found no significant differences between the two adhesive systems (p > 0.05). Conclusion: Under the conditions tested, the penetration of infiltrant ICON was significantly higher than the adhesive systems;however, it removes the surface layer of the enamel.
文摘Orthodontic treatment offers great advantages in improving facial and smile aesthetics, self-confidence and the function of the stomatognathic apparatus. The pursuit of these advantages makes use of orthodontic appliances that could be fixed or removable. However, it’s worth stating that these appliances interfere with tooth brushing, making it more difficult to brush teeth effectively. Orthodontics appliances therefore promote the accumulation of dental plaque, which results in both quantitative and qualitative changes in the oral microbiota, hence, exposing patients to several adverse effects such as White spot lesions, dental caries, periodontal pathologies and halitosis. For this reason, oral assessment of patients before, during and after treatment is necessary as well as oral hygiene instructions and motivation. Orthodontists therefore, should educate patients on oral and periodontal hygiene in order to control dental and periodontal complications. Prescriptions of plaque control materials adapted to each patient are done in order to optimize the final result and minimize unwanted complications.
文摘目的:对国内外近二十年正畸龋白斑研究现状、热点及研究趋势进行可视化分析。方法:检索2000~2022年发表于Web of Science(WoS)核心合集和中国知网(CNKI)数据库有关龋白斑的研究文献。采用Excel和CiteSpace 6.1.R2软件对国内外文献进行回顾性计量分析并绘制可视化科学知识图谱。结果:经筛选国内外发表有关龋白斑的文献共9487篇,其中WoS核心合集8606篇,CNKI数据库881篇。WoS关于龋白斑的研究热点集中在儿童早期龋、变异链球菌、激光荧光检测等;CNKI数据库中的研究热点可归纳为白垩斑、釉质脱矿和再矿化以及氟保护剂等,其中黏结剂剪切强度是国内外共同关注的研究热点。国外研究机构之间合作紧密,国内则形成以四川大学华西口腔医院为核心研究机构的研究团体,其他院校相互间合作较少。结论:龋病管理、渗透树脂可能是未来龋白斑研究趋势,国内学者应更加积极地开展跨学科、跨单位以及国际间的交流合作,产出更多高质量的科研成果。
