An in vivo Study on Bacterial Colonization with Metal, Ceramic and Self-ligating Brackets: A Scanning Electron Microscopy Study

Raju, Aravind S; Hegde, Nikhil Anand; Reddy, Vinay P; Chandrashekar, BS; Mahendra, S; Harishkoushik, SR

doi:10.1177/0974909820130206

Cited by 5 publications

(6 citation statements)

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“…[6] because we also found a higher percentage of cariogenic dental bio lm in the EL group compared with the SSL group. This difference might be due to an increase in the retentive area of elastomeric rings compared with stainless steel ligatures [51]. Our results, however, differ from the results of Rodrigues et al [52] who reported no difference in the dental bio lm formation between the surfaces tied with either SSL or EL when using a plaque staining method that evaluated dental bio lm accumulation, but not its cariogenicity.…”

Section: Discussioncontrasting

confidence: 99%

“…However, the combined tooth brushing reduced the percentage of mature dental bio lm in the SSL, but not the EL group. This discrepancy in these results might be due to the differences in new retentive areas and physical properties of the two ligatures [51,53,54].…”

Section: Discussionmentioning

confidence: 88%

“…Fixed orthodontic therapy typically causes retentive site-associated dental plaque accumulation [51].…”

Section: Discussionmentioning

confidence: 99%

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Reduction of dental biofilm cariogenicity in patients with fixed orthodontic appliances by a combined Horizontal-Charters-modified Bass brushing technique and dietary advice: A randomized clinical trial

Saengphen

Koontongkaew

Utispan

2022

Preprint

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Background: The orthodontic patients with inadequate oral hygiene have susceptibility to dental caries. Increased dental biofilm accumulation has been found in orthodontic patients. However, assessment of dental biofilm cariogenicity in these patients has not been reported. This open-label, two-arm parallel trial evaluated the effects of toothbrushing and dietary advice on dental biofilm maturity and dietary habit in patients with stainless steel (SSL) and elastomeric (EL) ligatures.Methods: At T0, diet habits, socio-demographic, medical problems, orthodontic treatment, and dental health behavior data were collected from 70 patients. The patients were randomized (1:1 ratio) to the SSL or EL group by simple randomization at T1. Dental biofilm cariogenicity was evaluated using a three-color-disclosing dye. The patients in both groups were instructed to brush their teeth using a combined Horizontal-Charters-modified Bass technique and dietary advice. The data were reassessed at the 4-week follow-up (T2). Results: At T1, new dental biofilm (median 50%; Q1, 32.66%; Q3, 71.13%) was highest followed by mature dental biofilm (median 26%; Q1, 20.42%; Q3, 47.93%), and cariogenic dental biofilm (median 8%; Q1, 4%; Q3, 22.92%) (p < 0.05), in SSL group. In the EL group, cariogenic dental biofilm (median 54.16%; Q1, 44.44%; Q3, 69.56%) was highly observed, while the median for mature and new dental biofilm was 25.0% (Q1, 18.18%; Q3, 36.18%) and 13.63% (Q1, 7.55%; Q3, 26.96%), respectively (p < 0.05). At T2, cariogenic dental biofilm in EL group demonstrated significantly greater reduction (47.04%) compared with the SSL group (8%) (p < 0.05). Cariogenic food consumption was low in two groups. However, dietary habits did not change in either group at T2.Conclusions: Combined toothbrushing effectively reduced cariogenic dental biofilm in orthodontic patients. Trial registration Thai clinical trials registry (TCTR20220221003)

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Section: Discussioncontrasting

confidence: 99%

Section: Discussionmentioning

confidence: 88%

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Reduction of dental biofilm cariogenicity in patients with fixed orthodontic appliances by a combined Horizontal-Charters-modified Bass brushing technique and dietary advice: A randomized clinical trial

Saengphen

Koontongkaew

Utispan

2022

Preprint

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“…Fixed orthodontic therapy may provide retentive site-associated dental biofilm accumulation [ 52 ]. Our findings imply that fixed orthodontic appliances may induce oral ecologic changes, which lead to increased dental biofilm cariogenicity.…”

Section: Discussionmentioning

confidence: 99%

Fixed Orthodontic Treatment Increases Cariogenicity and Virulence Gene Expression in Dental Biofilm

Thanetchaloempong

Koontongkaew

Utispan

2022

JCM

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Background: Dental caries commonly occurs during orthodontic treatment because fixed appliances can impede effective oral hygiene practices. This study investigated the effects of fixed orthodontic treatment on dental biofilm maturity and virulence gene (gtfB, ldh, brpA, spaP, luxS, and gbpB) expression. Methods: Dental biofilms and virulence gene expression were determined in 24 orthodontic patients before and after treatment of ≥6 months. A three-tone disclosing gel was used to stain dental biofilm and assess its maturity by its color change—pink (new dental biofilm), purple (mature dental biofilm), and light blue (cariogenic dental biofilm). Gene expression levels were determined using real-time PCR. Results: After fixed orthodontic appliance insertion, the percentage of new dental biofilm decreased, whereas that of cariogenic dental biofilm significantly increased (p < 0.05). There was no significant difference in the percentage of mature dental biofilm (p > 0.05). Fixed orthodontic appliances increased gtfB, ldh, brpA, and gbpB gene expression above 1.5-fold in dental biofilm. In contrast, there was no change in spaP or luxS gene expression after treatment. Conclusions: Fixed orthodontic appliance insertion induced ecological changes and cariogenic virulence gene expression in dental biofilm.

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“…Decreased wettability may inhibit direct adhesion and colonization of bacteria onto the appliances. [ 12 ]…”

Section: Introductionmentioning

confidence: 99%

Orthodontic bracket designs and their impact on microbial profile and periodontal disease: A clinical trial

et al. 2014

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Aim:The aim of the present study was to compare the undisturbed plaque formation on teeth bonded with Preadjusted (Captain Ortho, Libral Traders, Mumbai, India) and Begg Brackets (Captain Ortho, Libral Traders, Mumbai, India) with nonbonded control sites via a de novo plaque growth over a period of 7 days.Materials and Methods:A clinical trial with the split-mouth design was set up enrolling 10 dental students. Within each subject sites with (Preadjusted) (P-site), Begg brackets (B-site) and control sites were followed. Plaque index and gingival index were recorded on days 3 and 7. Supra-gingival and sub-gingival plaque samples were taken from the brackets and the teeth on days 3 and 7, and were sent for aerobic and anaerobic culturing. The total number of bacterial colony forming units (CFU) was assessed for each sample using a colony counter. Tukeys and Dunnett test then statistically analyzed data.Results:The mean plaque index and gingival index increased on P-site and B-site on the third and 7th day. The shift from aerobic to anaerobic species was observed earlier in P-sites than in B-sites. The CFU were significantly higher for all sites on day 7 when compared with day 3. The aerobe/anaerobe CFU ratio was significantly lower in P-sites than in B-sites and then control showing an increase in the number of anaerobic species on the 3rd and 7th day (P < 0.05). Based on observed means, the mean difference was significant (P < 0.05).Conclusion:The present data suggest that Preadjusted brackets accumulated more plaque than Begg brackets. Bracket design can have a significant impact on bacterial load and on periodontal parameters.

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An in vivo Study on Bacterial Colonization with Metal, Ceramic and Self-ligating Brackets: A Scanning Electron Microscopy Study

Cited by 5 publications

References 0 publications

Reduction of dental biofilm cariogenicity in patients with fixed orthodontic appliances by a combined Horizontal-Charters-modified Bass brushing technique and dietary advice: A randomized clinical trial

Reduction of dental biofilm cariogenicity in patients with fixed orthodontic appliances by a combined Horizontal-Charters-modified Bass brushing technique and dietary advice: A randomized clinical trial

Fixed Orthodontic Treatment Increases Cariogenicity and Virulence Gene Expression in Dental Biofilm

Orthodontic bracket designs and their impact on microbial profile and periodontal disease: A clinical trial

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