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Effect of periodontal therapy on the subgingival microbiota in preeclamptic patients. Secondary analysis of a controlled clinical trial Efecto del tratamiento periodontal sobre la microbiota subgingival en pacientes con preeclampsia. Análisis secundario de un ensayo clínico controlado  [cached]
Adriana Jaramillo,Roger Arce,Adolfo Contreras,Julián A. Herrera
Biomédica , 2011,
Abstract: Introduction. Few studies have described subgingival microbiota in pregnant women with mild preeclampsia. Objective. To identify clinical periodontal and subgingival microbiota changes of pregnant women with mild preeclampsia after periodontal treatment. Materials and methods. In a secondary analysis of a randomized clinical trial were studied 57 preeclamptic women at Hospital Universitario del Valle in Cali. Thirty one women were randomized to the periodontal intervention group (IG) (subgingival scaling and planing ultrasonic and manual) during pregnancy and 26 to the control group (CG) (supragingival prophylaxis). Periodontal clinical parameters and subgingival microbiota were determined at the inclusion in the study and postpartum. Eight periodontopathic bacteria and 2 herpesviruses were assessed by polymerase chain reaction. Chi-square, McNemar or Student's T tests were used, with a significance level of P≤0.05. Results. Both groups were comparable in the clinical and microbiological variables at baseline. Periodontal treatment reduced the average pocket depth in the IG from 2.44±0.31 to 2.31±0.24mm (p=0.000) and in CG 2.58±0.37 to 2.44±0.39mm, (p = 0.000) and bleeding index 16.4±1.5% to 7.9±0.7% in the IG (p = 0.000) and 17.1±1.8% to 10±0.9% in the CG (p=0.002). The frequency of detection of microorganisms did not differ significantly between groups. Conclusion. Scaling/root planning and supragingival prophylaxis, significantly reduced the probing depth and gingival bleeding index. Periodontal treatment was not more effective than prophylaxis in reducing periodontopathic organisms or herpesvirus. Introducción. Pocos estudios han descrito la microbiota subgingival en embarazadas con preeclampsia leve. Objetivo. Identificar cambios periodontales y de la microbiota subgingival en embarazadas con preeclampsia después del tratamiento periodontal. Materiales y métodos. En un análisis secundario de un ensayo clínico aleatorizado, se estudiaron 57 preeclámpticas en el Hospital Universitario del Valle en Cali. Fueron aleatorizadas 31 al grupo de intervención periodontal (GI) (detartraje y alisado subgingival ultrasónico y manual) durante su embarazo y otras 26 al grupo control (GC) (profilaxis supragingival). Se determinaron los parámetros clínicos periodontales y la microbiota subgingival a la inclusión al estudio y posparto. Se evaluaron 8 bacterias periodontopáticas y 2 herpesvirus por reacción en cadena de polimerasa. Se usaron las pruebas de Ji cuadrado, test de McNemar o T de Student, con un nivel de significancia de P≤0,05. Resultados. Los grupos fuer
Effect of non-surgical periodontal treatment on chronic kidney disease patients
Artese, Hilana Paula Carillo;Sousa, Celso Oliveira de;Luiz, Ronir Raggio;Sansone, Carmelo;Torres, Maria Cynésia Medeiros de Barros;
Brazilian Oral Research , 2010, DOI: 10.1590/S1806-83242010000400013
Abstract: chronic kidney disease (ckd) is a debilitating systemic condition. our working hypothesis is that ckd predialysis patients with periodontitis would respond poorly to periodontal treatment owing to immunologic compromise. twenty-one predialysis patients (group 1) and 19 individuals without clinical evidence of kidney disease (group 2) with chronic periodontitis were subjected to non-surgical periodontal treatment with no antibiotics. clinical periodontal and systemic parameters were evaluated at baseline and 3 months after treatment. both groups showed significant and similar post-treatment improvements in all periodontal parameters examined. most interestingly, periodontal treatment had a statistically significant positive effect on the glomerular filtration rate of each individual (group 1, p = 0.04; group 2, p = 0.002). our results indicate that chronic periodontitis in predialysis kidney disease patients improved similarly in patients with chronic periodontitis and no history of ckd after receiving non-surgical periodontal therapy. this study demonstrates that ckd predialysis patients show a good response to non-surgical periodontal treatment.
Diabetes, periodontitis, and the subgingival microbiota  [cached]
Edward J. Ohlrich,Mary P. Cullinan,Jonathan W. Leichter
Journal of Oral Microbiology , 2010, DOI: 10.3402/jom.v2i0.5818
Abstract: Both type 1 and type 2 diabetes have been associated with increased severity of periodontal disease for many years. More recently, the impact of periodontal disease on glycaemic control has been investigated. The role of the oral microbiota in this two-way relationship is at this stage unknown. Further studies, of a longitudinal nature and investigating a wider array of bacterial species, are required in order to conclusively determine if there is a difference in the oral microbiota of diabetics and non-diabetics and whether this difference accounts, on the one hand, for the increased severity of periodontal disease and on the other for the poorer glycaemic control seen in diabetics.
Detection of putative periodontal pathogens in subgingival specimens of dogs
Nishiyama, Sheila Alexandra Belini;Senhorinho, Gerusa Neyla Andrade;Gioso, Marco Ant?nio;Avila-Campos, Mario Julio;
Brazilian Journal of Microbiology , 2007, DOI: 10.1590/S1517-83822007000100006
Abstract: in this study, the presence of putative periodontal organisms, porphyromonas gingivalis, prevotella intermedia, tannerella forsythensis, fusobacterium nucleatum,dialister pneumosintes,actinobacillus actinomycetemcomitans,campylobacter rectus,eikenella corrodens and treponema denticola were examined from subgingival samples of 40 dogs of different breeds with (25) and without (15) periodontitis, by using the pcr method. the pcr products of each species showed specific amplicons. of the 25 dogs with periodontitis, p. gingivalis was detected in 16 (64%) samples, c. rectus in 9 (36%), a. actinomycetemcomitans in 6 (24%), p. intermedia in 5 (20%), t. forsythensis in 5 (20%), f. nucleatum in 4 (16%) and e. corrodens in 3 (12%). t. denticola and d. pneumosintes were not detected in clinical samples from dogs with periodontitis. moreover, p. gingivalis was detected only in one (6.66%) crossbred dog without periodontitis. our results show that these microorganisms are present in periodontal microbiota of dogs with periodontitits, and it is important to evaluate the role of these putative periodontal microorganisms play in the periodontitis in household pets particularly, dogs in ecologic and therapeutic terms, since these animals might acquire these periodontopahogens from their respective owners.
Irrigación subgingival com clorhexidina en terapia periodontal no quirúrgica
Kuchenbecker R?sing,Cassiano; Corrêa de Toledo,Benedicto Egbert;
Acta Odontológica Venezolana , 2009,
Abstract: the present study had as objective to evaluate the clinical effect of professional subgingival irrigation with chlorhexidine as adjunct to scaling and root planning procedures. the study was developed in 17 patients with 5 periodontal pockets 6 or more millimeters depth and similar, which were divided in 4 groups: only subgingival scaling and root planning, scaling and root planning plus subsequent irrigation with saline, scaling and root planning and subsequent irrigation with chlorhexidine 0.12% and irrigation with chlorhexidine 0.12% previous to scaling and root planning. the clinical parameters evaluated were plaque index, gingival index, probing depth, level of attachment, bleeding and suppuration upon probing of the bottom of the pocket. the analysis was done at the beginning of the study and 60 days after the clinical procedures. the results demonstrate improvement in all parameters of all experimental groups, statistically similar, with exception of bleeding on probing of the bottom of the pocket that showed better results to the irrigated groups in relation to the group that was only mechanically instrumented. thus, it was concluded that irrigation as an adjunct, either with chlorhexidine or with saline solution, provides better repair of non-surgical periodontal therapy procedures
Experimental periodontal disease treatment by subgingival irrigation with tetracycline hydrochloride in rats
Fernandes, Leandro Araújo;Martins, Thiago Marchi;Almeida, Juliano Milanezi De;Nagata, Maria José Hitomi;Theodoro, Leticia Helena;Garcia, Valdir Gouveia;Bosco, Alvaro Francisco;
Journal of Applied Oral Science , 2010, DOI: 10.1590/S1678-77572010000600017
Abstract: objective: the aim of this study was to compare subgingival irrigation with tetracycline hydrochloride (ttc-hcl) as adjunctive treatment to scaling and root planning (srp) on induced periodontitis in rats. material and methods: in 60 rats, periodontal disease was ligature-induced at the mandibular left first molar. after 7 days, the ligature was removed and all animals were submitted to srp, and divided into 2 groups according to the following treatment: c (n=30) - subgingival irrigation with 1 ml of saline; t (n=30) - subgingival irrigation with 1 ml of ttc-hcl (50 mg/ml). ten animals in each group were euthanized at 7, 15 and 30 days posttreatment. the histometric values were statistically analyzed (p<0.05). results: in the histometric analysis, at 7, 15 and 30 days, group t (0.72±0.05 mm2, 0.57±0.14 mm2, 0.62±0.07 mm2), showed less bone loss (p<0.05) than group c (1.35±0.25 mm2; 1.40±0.31 mm2; 1.29±0.27 mm2), respectively. conclusions: subgingival irrigation with ttc-hcl was an effective adjunctive treatment for periodontal disease induced in rats.
The use of subgingival chlorhexidine chip in the treatment of periodontal disease  [PDF]
Lukovi? Natalija,Zeli? Obrad,?aki? Sa?a
Stomatolo?ki Glasnik Srbije , 2006, DOI: 10.2298/sgs0603181l
Abstract: Due to the infective nature of periodontal disease several local devices have been used to overcome the limited efficacy of conventional periodontal treatment. However, local concentration of these medicaments, especially over time, raises the question of expediency of their use. Local delivery systems allow the therapeutic agents to be targeted to the diseased site for a long time. These systems, when retained in the periodontal pocket, can release the antimicrobial agents at levels that are 10- to 100-fold higher than the levels that can be delivered by systemic antibiotics. Several different drug delivery systems have been used in controlled clinical trials: fibers, gels and chips. The most frequently used antimicrobials are antibiotics (tetracycline, minocycline), hemotherapeutics (metronidazole), and antiseptics (chlorhexidine dicluconate). In the present paper the method of chlorhexidine chip application is analyzed. We discussed the results of studies that evaluated the efficacy of a controlled-release of biodegradable chlorhexidine chip when used as an adjust to scaling and root planning (SRP) in adult periodontitis.
Non surgical Periodontal Therapy  [PDF]
Rajababu P,Harinath Reddy S,Satyanarayana D,Palakuru SK
Indian Journal of Dental Advancements , 2009,
Abstract: Periodontal disease is the number one chronic infectious disease in the world. It is the leading cause of tooth loss, and begins as painless infection in the gums that is caused by buildup of bacterial plaque. The treatment modalities that exist for the treatment of gingivitis and Periodontitis depends on the extent and severity, but the primary objective is to restore the gingival health by removing the local factors viz plaque, calculus etc. that provoke inflammation. Non- surgical periodontal therapy or NSPT is one of the management of gingival infection with scaling, root planning, antibiotics and other non surgical means.
Influence of IL-1 gene polymorphism on the periodontal microbiota of HIV-infected Brazilian individuals
Gon?alves, Lucio de Souza;Ferreira, S?nia Maria Soares;Souza, Celso Oliveira;Colombo, Ana Paula Vieira;
Brazilian Oral Research , 2009, DOI: 10.1590/S1806-83242009000400016
Abstract: this study investigated the association of il-1a (+4845) and il-1b (+3954) gene polymorphism with the subgingival microbiota and periodontal status of hiv-infected brazilian individuals on highly active antiretroviral therapy (haart). one hundred and five subjects were included in the study, distributed into 2 hiv groups [29 chronic periodontitis (cp+) and 30 periodontally healthy (h+)]; and 2 non-hiv groups (29 cp- and 17 h- patients). il-1a and b were genotyped by pcr and restriction enzyme digestion. thirty-three bacterial species were detected by checkerboard. overall, we observed a prevalence of the allele 2 in the il1-a and il-1b polymorphism at 30.5% and 25.7%, respectively. only 11.4% of all patients were composite genotype-positive, and 75% of those were hiv-infected. no significant associations between polymorphism of the il-1 gene and periodontitis or hiv infection were observed. likewise, no significant differences in the frequency and counts of any bacterial species were found between individuals with and without allele 2 (il-1a or il-1b). the data indicated that the il-1 gene polymorphism is neither associated with periodontal destruction nor with high levels of subgingival species, including putative periodontal pathogens in hiv brazilian individuals on haart.
Changes in the subgingival biofilm composition after coronally positioned flap
Lima, Jadson Almeida;Santos, Vanessa Renata;Feres, Magda;Figueiredo, Luciene Cristina de;Duarte, Poliana Mendes;
Journal of Applied Oral Science , 2011, DOI: 10.1590/S1678-77572011000100014
Abstract: objectives: this study evaluated the effects of coronally positioned flap (cpf) on the subgingival biofilm composition. material and methods: twenty-two subjects with gingival recessions were treated with cpf. clinical parameters were assessed before and at 6 months after surgery. subgingival biofilms were analyzed by checkerboard dna-dna hybridization technique for 40 bacterial species. results: recession height, clinical attachment level and bleeding on probing improved significantly (p<0.05) at 6 months post-cpf. the proportions of 10 periodontal pathogens and the proportions of red and orange complexes decreased at 6 months. conclusion: in conclusion, cpf can induce beneficial effects on the composition of the subgingival microbiota after 6 months.
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