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PubMed1993

The effect of baking soda/hydrogen peroxide dentifrice (Mentadent) and a 0.12 percent chlorhexidine gluconate mouthrinse (Peridex) in reducing gingival bleeding.

The purpose of this study was to determine the effectiveness of a baking soda/hydrogen peroxide dentifrice, Mentadent, and a 0.12 percent chlorhexidine gluconate mouthrinse, Peridex, in reducing gingival bleeding. Forty subjects were divided into three groups; the baking soda group, the chlorhexidine group and the control group. All groups received oral hygiene instruction and brushed and flossed three times per day. Bleeding point scores were evaluated at baseline and at five weeks. The baking soda/hydrogen peroxide group used the supplied dentifrice as their sole toothpaste. The 0.12 percent chlorhexidine group used the mouthrinse twice per day. The control group performed oral hygiene as instructed. At five weeks, the 0.12 percent chlorhexidine mouthrinse significantly reduced gingival bleeding. The dentifrice and control groups revealed no statistically significant reductions. The results indicate that the 0.12 percent chlorhexidine mouthrinse is useful in improving oral health, whereas the baking soda/hydrogen peroxide dentifrice offered no advantages to conventional oral hygiene.

Adult↗
PubMed1994

[Effect of chlorhexidine gluconate on Serratia marcescens clinical isolates: relevance to serotype O3].

Effect of chlorhexidine gluconate (CHG) on 98 clinical isolates of Serratia marcescens, previously O-serotyped, in The Showa University Fujigaoka Hospital (1989. 1-1991. 3) was investigated. The serotype O3 group (28 strains) was more frequently isolated than any other groups and more resistant to 28 different antimicrobial agents tested. 18 (50%) of 36 strains (MIC of CHG > or = 100 micrograms/ml) were serotype O3 and MIC-distribution of CHG for total O3 strains was more resistant than that for the other serotype strains. Bactericidal effect of CHG on 18 O3 strains (MIC of CHG > or = 100 micrograms/ml) was significantly lower than on the other 10 strains (MIC of CHG < or = 50 micrograms/ml). Although 19 (68%) of total O3 strains were resistant to cefotaxime and the other drugs, MIC-distribution of CHG for these strains was not associated with the antimicrobial resistance tested. The above results, at least, suggest that the serotype O3 group is suited for residing in hospitalized patients more than any other serotype groups.

Chlorhexidine↗
PubMed1996

Therapeutic availability of iron administered orally as the ferrous gluconate together with magnesium-L-aspartate hydrochloride.

Since in vitro experiments had excluded interactions between Fe-gluconate (Fe-gluc) and magnesium-L-aspartate hydrochloride (MAH) in aqueous solutions the present in vivo studies seemed to be justified. Animal studies: Rats were kept on magnesium-(Mg)- and iron-(Fe)- sufficient and deficient diets. The intragastral administration of Fe-gluc significantly increased plasma Fe after 3 h, either given alone, or in combination with MAH (inducing hypermagnesemia). Same results were obtained when fortified diets were offered to Fe/Mg-deficient animals. Human studies: The combination of Fe-gluc (2 x 50 mg Fe per day, per os) plus MAH (2 x 7.5 mmol Mg per day, p.o.) was well tolerated by healthy volunteers. Single dose experiments revealed that Fe-gluc alone and in combination with MAH increased plasma Fe levels during 3 h to the same extent. Two groups of pregnant women with moderately reduced hemoglobin levels either received Fe-gluc (out-patients) or its combination with MAH (at least temporarily hospitalised because of preterm labor). Treatments were well tolerated. Hemoglobin levels did not further decrease, as expected without Fe supplements, during the course of pregnancy, thus indicating the therapeutic availability of the electrolytes in both study groups. Progesterone-induced constipation is frequently observed during pregnancy; hence stool softening reported by 50% of the women receiving Fe-gluc plus MAH (versus 33% in the Fe-gluc group) can be regarded as desirable effect. It is concluded that MAH does not interfere with the enteral absorption of Fe-gluc when both electrolytes are orally administered together. Taking both electrolytes together instead of 2 to 3 h apart from each other, as actually recommended, means a less complicated dosage regimen and probably improves compliance.

Administration, Oral↗
PubMed1997

Efficacy of sodium antimony gluconate and ketoconazole in the treatment of kala-azar--a comparative study.

The present study was undertaken to determine the efficacy of ketoconazole in comparison to sodium antimony gluconate (SAG) in the treatment of kala-azar. The study was conducted at two centres: All India Institute of Medical Science, New Delhi and Calcutta School of Tropical Medicine, Calcutta. A total of 180 patients with proven kala-azar were recruited. After preliminary investigations, the patients were randomly divided into 2 groups: One group received ketoconazole in a dose of 600 mg/ day in 3 divided doses for 4 weeks while the other group was treated with SAG at a dose of 20 mg/kg/day up to a maximum of 850 mg/day for 4 weeks. The patients were followed up by clinical examination, liver functions, haemogram and the bone marrow/splenic aspiration. Responders were followed up at 3 and 9 months of intervals. Of 90 cases in SAG, 78 (81.7%) got cured initially while under ketoconazole group, only 26 (33.3%) of 78 patients responded initially (p < 0.001). After 3 months of follow up, 75 of 78 SAG-responders (96.2%) and 24 of 26 ketoconazole-responders (92.3%) continued to be in remission. Despite the fact that 2 patients in each group were lost to follow up at 9 months, similar observations were noted with only one relapse in SAG group. The response to SAG was comparable at the two centres. However, the response to ketoconazole was better at Delhi centre as compared to that at Calcutta. There were no significant side effects or hormonal changes in any of the patients in ketoconazole group at Delhi centre. Significantly higher side effects were reported at Calcutta centre in ketoconazole group (P < 0.05). No satisfactory explanation can be given for this difference in response to ketoconazole at two centres. However, it is known that leishmanial parasites of different geographical origin differ in their response to different drugs and this could be one of the reasons for difference observed in response rate to ketoconazole as the study involved different populations of people.

Drug Monitoring↗
PubMedDate not supplied

A comparative, qualitative and quantitative antimicrobial efficacies of mouthrinses containing chlorhexidine gluconate and essential oils.

A project was launched to evaluate and compare antimicrobial efficacy of Hexidine and Listerine over placebo in 10 day human experimental gingivitis study. A rigid study schedule for subject compliance spanning well over 3 months was sorted out and volunteers recruited for study rinsed all the 3 assigned mouthrinses containing (a) chlorhexidine gluconate, (b) "essential oils" and (c) flavoured distilled water one after the other at certain prefixed intervals. After 10 days of assigned mouthrinse regimen, where the assigned mouthrinse was the only method practiced by the volunteers for oral hygiene, Supragingival Plaque was quantitatively and qualitatively assayed. Qualitatively supragingival plaque was assayed by Gram staining (Direct smear and Thioglycollate Broth) and growth characteristics i.e; Aerobic, Microaerophilic and Anaerobic growth was noted. Quantitatively plaque was assayed by calculating total microbial load per tooth by preparing Mafarland Nephelometer standard and Spectrophotometric analysis. It is concluded that Hexidine and Listerine exert similar antimicrobial efficacy in 10 days experimental gingivitis study. Hexidine and Listerine exert their antimicrobial influence through reduction of total Aerobes and Anaerobes reducing total microbial load per tooth by 58% and 53% respectively as compared to placebo.

Adult↗
PubMed1998

[A comparative in-vitro study of the bactericidal efficacy of sodium hypochlorite and chlorhexidine gluconate plus cetrimide on root canal anaerobic bacterial flora].

INTRODUCTION: The permanence of necrotic tissues and/or bacteria may be responsible for persistent root canal infection. Root canal irrigation plays an important role in the success of endodontic treatment given that, on the one hand, it encourages the progressive elimination of the smear layer and, on the other, it neutralises microbic flora within the canal. The aim of this study was to test root canal irrigants from a microbiological point of view: sodium hypochlorite 5% (Niclor Ogna, Milan) and a new generation irrigant based on chlorhexidine gluconate and cetrimide (Cetrexidine VEBAS S. Giuliano Milanese-MI). METHODS: The experiments were performed on a series of obligatory anaerobic bacteria which are most frequently found in the endodontium, all belonging to the international collection "American Type Culture Collection" (ATCC) and supplied by Dasit SpA, Cornaredo (MI). The following bacterial strains were used in the experiment: Actinimyces odontolyticus ATCC 17929, Fusobacterium nucleatum ATCC 25586, Prevotella melanginogenica ATCC 25845, Porphyromonas gingivalis ATCC 33277. The working concentration (CFU/ml) was defined as 0.5 McFarland which corresponds to a concentration of microorganisms equivalent to approx. 1.5 x 10(3) bacteria. Each irrigant was kept in contact with the bacterial species used for this experiment for 10', 20', 30'. RESULTS: The results obtained confirm the bactericidal efficacy of both irrigants used, even after a short contact time. CONCLUSIONS: This does not mean that all irrigants are the same and/or promise the same results. This was a microbiological study, but in practice it is important to bear in mind other variables, such as contact time. Moreover, in order to increase the probability of endodontic treatment, root canal irrigants are also required to satisfy other criteria: biocompatibility, scarce toxicity, high proteolytic power.

Anti-Bacterial Agents↗
PubMed1998

Fissure penetration and antibacterial effect in vitro of a glass ionomer cement containing chlorhexidine gluconate.

Chlorhexidine has been incorporated in different varnishes to provide a slow release system on the tooth surface in order to reduce mutans streptococci. To provide an alternative vehicle for chlorhexidine with better adhesion properties compared to resin-based varnishes, glass ionomer cement (GI) has been suggested. However, one disadvantage for glass ionomers is a longer setting time compared to the resin-based varnishes. The aim with this study was to compare the fissure penetration and antibacterial characteristics of a glass-ionomer cement (GI) with a GI containing chlorhexidine gluconate (GI-CHX), and GI-CHX with added tataric acid (GI-CHX-TA) to reduce its setting time. Antibacterial properties against mutans streptococci were assessed by agar diffusion. GI, GI-CHX and GI-CHX-TA were applied with a microbrush on the occlusal surfaces of 4, 4 and 6 extracted molars respectively. After setting of cements, sections were ground with 1 mm intervals and photographed. The fissure penetration and adaptation of the cements were scored excellent, acceptable or unacceptable under blind conditions according to a standard. Seventy percent scored excellent with GI-CHX-TA (n = 54) compared with 40% with GI-CHX (n = 48) and 38% with GI (n = 40), (p < 0.05). GI-CHX and GI-CHX-TA had significant better antibacterial properties compared to GI or GI with added tataric acid only.

Analysis of Variance↗