Phototherapy with blue light emitting diodes (LEDs) is gaining interest because of the efficient antimicrobial benefits reported in several studies in the last decade. The aim in this study was to investigate if a too...Phototherapy with blue light emitting diodes (LEDs) is gaining interest because of the efficient antimicrobial benefits reported in several studies in the last decade. The aim in this study was to investigate if a toothbrush with incorporated blue light used in daily oral care can reduce dental plaque and gingival inflammation. An 8-week single-blinded randomized controlled clinical study including 48 subjects compared effects of toothbrushes with/without 450 nm blue LED light emission, on clinical parameters (plaque index, gingival index, bleeding on probing), and on inflammatory markers in saliva and gingival crevicular fluid. Significant reductions in dental plaque and gingival inflammation (p < 0.001), and in some inflammatory markers (p ≤ 0.05), matrix metalloproteinase (MMP)-8, tissue inhibitor metalloproteinase inhibitor (TIMP)-1, interleukin (IL)-1β and interleukin (IL)-8, were detected within both groups from baseline to follow-up. For all subjects dental plaque was reduced with 57%, and a reduction in gingival inflammation was demonstrated by a decrease in gingival index (GI) with 46% and in bleeding on probing (BOP) with a decrease of 15%. No significant differences were found between the groups at a level of p = 0.05. However, the amount of plaque was reduced by 62% in the blue light group and 51% in the control group, a difference established at a level of p = 0.058. A toothbrush with a 450 nm LED did not show any statistical significant adjunctive effect of toothbrushing regarding reduction in measurements of dental plaque and gingival inflammation.展开更多
Diabetes mellitus and periodontal disease are chronic diseases affecting a large number of populations worldwide.Changed bone metabolism is one of the important long-term complications associated with diabetes mellitu...Diabetes mellitus and periodontal disease are chronic diseases affecting a large number of populations worldwide.Changed bone metabolism is one of the important long-term complications associated with diabetes mellitus.Alveolar bone loss is one of the main outcomes of periodontitis,and diabetes is among the primary risk factors for periodontal disease.In this review,we summarise the adverse effects of diabetes on the periodontium in periodontitis subjects,focusing on alveolar bone loss.Bone remodelling begins with osteoclasts resorbing bone,followed by new bone formation by osteoblasts in the resorption lacunae.Therefore,we discuss the potential mechanism of diabetes-enhanced bone loss in relation to osteoblasts and osteoclasts.展开更多
基金The Swedish Research Council,Contract No K2014-70X-22533-01-3,Praktikertjanst AB,Karolinska Institutet,Huddinge,Sweden and Stockholm University,Stockholm,Sweden supported the study
文摘Phototherapy with blue light emitting diodes (LEDs) is gaining interest because of the efficient antimicrobial benefits reported in several studies in the last decade. The aim in this study was to investigate if a toothbrush with incorporated blue light used in daily oral care can reduce dental plaque and gingival inflammation. An 8-week single-blinded randomized controlled clinical study including 48 subjects compared effects of toothbrushes with/without 450 nm blue LED light emission, on clinical parameters (plaque index, gingival index, bleeding on probing), and on inflammatory markers in saliva and gingival crevicular fluid. Significant reductions in dental plaque and gingival inflammation (p < 0.001), and in some inflammatory markers (p ≤ 0.05), matrix metalloproteinase (MMP)-8, tissue inhibitor metalloproteinase inhibitor (TIMP)-1, interleukin (IL)-1β and interleukin (IL)-8, were detected within both groups from baseline to follow-up. For all subjects dental plaque was reduced with 57%, and a reduction in gingival inflammation was demonstrated by a decrease in gingival index (GI) with 46% and in bleeding on probing (BOP) with a decrease of 15%. No significant differences were found between the groups at a level of p = 0.05. However, the amount of plaque was reduced by 62% in the blue light group and 51% in the control group, a difference established at a level of p = 0.058. A toothbrush with a 450 nm LED did not show any statistical significant adjunctive effect of toothbrushing regarding reduction in measurements of dental plaque and gingival inflammation.
基金funded by the National Institute of Dental and Craniofacial Research(grant no. DE021921)
文摘Diabetes mellitus and periodontal disease are chronic diseases affecting a large number of populations worldwide.Changed bone metabolism is one of the important long-term complications associated with diabetes mellitus.Alveolar bone loss is one of the main outcomes of periodontitis,and diabetes is among the primary risk factors for periodontal disease.In this review,we summarise the adverse effects of diabetes on the periodontium in periodontitis subjects,focusing on alveolar bone loss.Bone remodelling begins with osteoclasts resorbing bone,followed by new bone formation by osteoblasts in the resorption lacunae.Therefore,we discuss the potential mechanism of diabetes-enhanced bone loss in relation to osteoblasts and osteoclasts.
