Calcium channel blocker-induced gingival overgrowth (CCB-GO) is increasing in elderly patients who have been prescribed medication for hypertension for years. The purpose of the present study was to analyze the compre...Calcium channel blocker-induced gingival overgrowth (CCB-GO) is increasing in elderly patients who have been prescribed medication for hypertension for years. The purpose of the present study was to analyze the comprehensive protein expression levels of candidate biomarkers in gingival crevicular fluid (GCF) from CCB-GO patients. Eleven GO patients (10 males and one female, mean ± SD: age: 64.4 ± 14.0 years) who had been systemically prescribed CCBs, either amlodipine or nifedipine, for hypertension for at least 12 months were recruited. Before (baseline) and 4 weeks after initial periodontal treatments, subgingival plaque and GCF samples were taken from two sites per patient: sites affected by CCB-GO and chronic periodontitis. Measurement of clinical parameters and quantitative analysis of periodontopathic bacteria using real-time PCR were performed. Biomarkers/cytokines in GCF were examined using multiplex bead immunoassays. The Mann-Whitney U test was used to compare the collected data between groups. The correlations between pairs of biomarkers were assessed using the Spearman correlation relationship. Levels of two of the 14 biomarkers, interleukin (IL)-1β and transforming growth factor (TGF)- β, were significantly decreased in CCB-GO sites after initial periodontal therapy. The intragroup comparison at baseline showed that counts of Treponema denticola in the GO group were significantly higher than those in the chronic periodontitis group (P β and TGF-β in CCB-GO patients. These factors are involved in initiation and progression of GO as well as periodontitis.展开更多
Prostaglandin E_2 (PGE2) levels in gingival crevicular fluid (GCF) of 46 normal controls and 90 patients suffering from periodontitis with different periodontal pocket depths were measured by radioimmunoassay (RLA).Th...Prostaglandin E_2 (PGE2) levels in gingival crevicular fluid (GCF) of 46 normal controls and 90 patients suffering from periodontitis with different periodontal pocket depths were measured by radioimmunoassay (RLA).The results demonstrated that PGE2 levels in the GCF of the periodontal pockets are higher in patients with periodontitis.The PGE2 level rises as the periodontal pocket deepens, especially in cases where the periodontal pocket depth exceeds 6 mm. This study shows that the PGE2 level is significantly related to the severity of bone destruction in periodontitis.展开更多
Apical periodontitis(AP) develops as a result of the host's immune inflammatory response to pulpal infection of the dental root canals that leads to the generation of an apical lesion of endodontic origin(ALEO) an...Apical periodontitis(AP) develops as a result of the host's immune inflammatory response to pulpal infection of the dental root canals that leads to the generation of an apical lesion of endodontic origin(ALEO) and potentially to systemic metabolic alterations. Misdiagnosed ALEO is not infrequent due to the lack of diagnostic tools to differentiate apical lesions of different natures. Despite the conservative endodontic treatment shows a high success rate, there are refractory cases that can not be identified early enough during follow up. This evidences the need to develop complementary diagnostic tools, such as oral fluid biomarker analysis. Gingival crevicular fluid(GCF) is a serum transudate that becomes an exudate under inflammatory conditions, carrying molecules from local periodontal tissuesand general circulation than can be harvested noninvasively. We aimed to review the available literature analyzing GCF composition in AP patients to evaluate whether GCF has any potential for complementary diagnosis. To the date, only few studies addressing changes of GCF components in AP are available. Most studies support GCF modifications in specific components in APaffected teeth, suggesting that it might reflect periapical inflammation. GCF has potential for diagnostic tool, treatment follow-up and eventually to assess systemic comprise.展开更多
AIM: To validate accuracy of a novel chair-side test for matrix metalloproteinase(MMP)-8 as compared to enzyme-linked immunosorbent assay(ELISA) in Periodontal health and disease.METHODS: Gingival crevicular fluid was...AIM: To validate accuracy of a novel chair-side test for matrix metalloproteinase(MMP)-8 as compared to enzyme-linked immunosorbent assay(ELISA) in Periodontal health and disease.METHODS: Gingival crevicular fluid was collected from 150 subjects, Group 1(healthy)- 50 subjects, Group 2(gingivitis)- 50 subjects and Group 3(chronic periodontitis)- 50 subjects. A chair-side test strip was indigenously prepared using polyclonal antibodies(principle of immunochromatography) to detect the MMP-8 levels. The detection accuracy(sensitivity and specificity) of the MMP-8 levels by chair-side test kit were compared with ELISA at baseline and 3 mo after scaling and root planing among the study population.RESULTS: The novel chair side test detected MMP-8 levels in accordance with ELISA which at baseline were higher in Group 2 and Group 3 as compared to controls(P < 0.05), and these enzyme levels decreased after therapy(P < 0.05). The chair-side test could differentiate healthy, gingivitis and periodontitis. The detection accuracy of the chair-side test strip were on par with ELISA(sensitivity 92.9% and specificity of 100%) which were statistically significant(P < 0.05). A desire to arouse interest about periodontal health and maintenance in the Indian population provided a strong rationale for us to develop our chair-side test strips to suit our economy. Moreover, this was the first ever effort to develop and validate a chair-side test strip to detect MMP-8 levels in the Indian population. This test can be used on a large scale in private dental practice for the early detection of disease, tapping the sites at risk for disease, alongside helps in patient education and motivation for maintenance.CONCLUSION: This study shows that the novel chair side test kit detects MMP-8 levels a biomarker of periodontal disease progression accurately making it a good chair side diagnostic tool. Further, it is cost effective and time saving which can make it applicable in private dental practice on a large scale for the early detection of periodontal disease.展开更多
Objective. To discover the relation between alkaline phosphatase (ALP) in gingival crevicular fluid (GCF) of implant teeth and the curing results. Methods. We measured the ALP level in GCF among 56 cases of implant te...Objective. To discover the relation between alkaline phosphatase (ALP) in gingival crevicular fluid (GCF) of implant teeth and the curing results. Methods. We measured the ALP level in GCF among 56 cases of implant teeth which included 2 failed cases, 5 cases with bad oral hygiene and gingivitis, and compared it with that in the normal group composed of 10 persons. Results. The ALP levels in normal group and success implant group showed no difference. The ALP levels in normal group and success with gingivitis group showed obvious difference. The ALP levels of the 2 failed cases are the highest of all.Conclusions. The ALP level in GCF is an important index in evaluating the curing result of the implant teeth.展开更多
文摘Calcium channel blocker-induced gingival overgrowth (CCB-GO) is increasing in elderly patients who have been prescribed medication for hypertension for years. The purpose of the present study was to analyze the comprehensive protein expression levels of candidate biomarkers in gingival crevicular fluid (GCF) from CCB-GO patients. Eleven GO patients (10 males and one female, mean ± SD: age: 64.4 ± 14.0 years) who had been systemically prescribed CCBs, either amlodipine or nifedipine, for hypertension for at least 12 months were recruited. Before (baseline) and 4 weeks after initial periodontal treatments, subgingival plaque and GCF samples were taken from two sites per patient: sites affected by CCB-GO and chronic periodontitis. Measurement of clinical parameters and quantitative analysis of periodontopathic bacteria using real-time PCR were performed. Biomarkers/cytokines in GCF were examined using multiplex bead immunoassays. The Mann-Whitney U test was used to compare the collected data between groups. The correlations between pairs of biomarkers were assessed using the Spearman correlation relationship. Levels of two of the 14 biomarkers, interleukin (IL)-1β and transforming growth factor (TGF)- β, were significantly decreased in CCB-GO sites after initial periodontal therapy. The intragroup comparison at baseline showed that counts of Treponema denticola in the GO group were significantly higher than those in the chronic periodontitis group (P β and TGF-β in CCB-GO patients. These factors are involved in initiation and progression of GO as well as periodontitis.
文摘Prostaglandin E_2 (PGE2) levels in gingival crevicular fluid (GCF) of 46 normal controls and 90 patients suffering from periodontitis with different periodontal pocket depths were measured by radioimmunoassay (RLA).The results demonstrated that PGE2 levels in the GCF of the periodontal pockets are higher in patients with periodontitis.The PGE2 level rises as the periodontal pocket deepens, especially in cases where the periodontal pocket depth exceeds 6 mm. This study shows that the PGE2 level is significantly related to the severity of bone destruction in periodontitis.
基金Supported by Project grants from Scientific and TechnologicInvestigation Resource(FONDECYT),Santiago,Chile,No.N°1090461 and 1120138
文摘Apical periodontitis(AP) develops as a result of the host's immune inflammatory response to pulpal infection of the dental root canals that leads to the generation of an apical lesion of endodontic origin(ALEO) and potentially to systemic metabolic alterations. Misdiagnosed ALEO is not infrequent due to the lack of diagnostic tools to differentiate apical lesions of different natures. Despite the conservative endodontic treatment shows a high success rate, there are refractory cases that can not be identified early enough during follow up. This evidences the need to develop complementary diagnostic tools, such as oral fluid biomarker analysis. Gingival crevicular fluid(GCF) is a serum transudate that becomes an exudate under inflammatory conditions, carrying molecules from local periodontal tissuesand general circulation than can be harvested noninvasively. We aimed to review the available literature analyzing GCF composition in AP patients to evaluate whether GCF has any potential for complementary diagnosis. To the date, only few studies addressing changes of GCF components in AP are available. Most studies support GCF modifications in specific components in APaffected teeth, suggesting that it might reflect periapical inflammation. GCF has potential for diagnostic tool, treatment follow-up and eventually to assess systemic comprise.
文摘AIM: To validate accuracy of a novel chair-side test for matrix metalloproteinase(MMP)-8 as compared to enzyme-linked immunosorbent assay(ELISA) in Periodontal health and disease.METHODS: Gingival crevicular fluid was collected from 150 subjects, Group 1(healthy)- 50 subjects, Group 2(gingivitis)- 50 subjects and Group 3(chronic periodontitis)- 50 subjects. A chair-side test strip was indigenously prepared using polyclonal antibodies(principle of immunochromatography) to detect the MMP-8 levels. The detection accuracy(sensitivity and specificity) of the MMP-8 levels by chair-side test kit were compared with ELISA at baseline and 3 mo after scaling and root planing among the study population.RESULTS: The novel chair side test detected MMP-8 levels in accordance with ELISA which at baseline were higher in Group 2 and Group 3 as compared to controls(P < 0.05), and these enzyme levels decreased after therapy(P < 0.05). The chair-side test could differentiate healthy, gingivitis and periodontitis. The detection accuracy of the chair-side test strip were on par with ELISA(sensitivity 92.9% and specificity of 100%) which were statistically significant(P < 0.05). A desire to arouse interest about periodontal health and maintenance in the Indian population provided a strong rationale for us to develop our chair-side test strips to suit our economy. Moreover, this was the first ever effort to develop and validate a chair-side test strip to detect MMP-8 levels in the Indian population. This test can be used on a large scale in private dental practice for the early detection of disease, tapping the sites at risk for disease, alongside helps in patient education and motivation for maintenance.CONCLUSION: This study shows that the novel chair side test kit detects MMP-8 levels a biomarker of periodontal disease progression accurately making it a good chair side diagnostic tool. Further, it is cost effective and time saving which can make it applicable in private dental practice on a large scale for the early detection of periodontal disease.
文摘Objective. To discover the relation between alkaline phosphatase (ALP) in gingival crevicular fluid (GCF) of implant teeth and the curing results. Methods. We measured the ALP level in GCF among 56 cases of implant teeth which included 2 failed cases, 5 cases with bad oral hygiene and gingivitis, and compared it with that in the normal group composed of 10 persons. Results. The ALP levels in normal group and success implant group showed no difference. The ALP levels in normal group and success with gingivitis group showed obvious difference. The ALP levels of the 2 failed cases are the highest of all.Conclusions. The ALP level in GCF is an important index in evaluating the curing result of the implant teeth.
