scholarly journals A Randomized Controlled Trial to Evaluate the Effects of Different Forms of Orange Juice on Dental Plaque Ph

2021 ◽  
pp. 304-309
Author(s):  
Bellamkonda Pavani ◽  
D. S. Monica Dev ◽  
Mirnalini Selvakumar ◽  
Tejaswi Mali ◽  
M. Madhumidha ◽  
...  
Keyword(s):  
Orange Juice ◽  
Dental Plaque ◽  
Controlled Trial ◽  
Significant Drop ◽  
Added Sugar ◽  
Plaque Ph ◽  
Significant Difference ◽  
Orange Fruit ◽  
Fruit Drink

Aim: To study the acidogenic response in human dental plaque in vivo with fresh orange juice compared to orange fruit drink with no added sugar and regular orange fruit drink that were currently available in the market. Materials and Methods: Ninety subjects aged 18-30 years were allocated randomly into 3 groups. 10 ml of each experimental drink was given to the subjects in each group and instructed to keep in mouth for 2 minutes before swallowing. Intrinsic pH of the test drinks was measured by the Digital pH meter. Plaque pH was measured at the baseline, immediately after consumption and at 1,15 and 30minutes post consumption. Result: Inter group comparison by ANOVA showed significant difference among mean pH values and time intervals. There was significant drop in plaque pH in all the three groups after 1minute. Tropicana group showed drop in pH even after 30 minutes while in other two groups, pH returned to initial levels at the end of 30minutes. Conclusion: The results of our study showed that, plaque pH dropped rapidly after 1 minute of consumption of all the three fruit juices. Plaque pH returned to initial levels in two groups while in tropicana group, it declined.

scholarly journals Impact of nutrient warning labels on choice of ultra-processed food and drinks high in sugar, sodium, and saturated fat in Colombia: A randomized controlled trial

2021 ◽  
Author(s):  
Mercedes Mora-Plazas ◽  
Isabella Higgins ◽  
Luis Fernando Gomez ◽  
Marissa G. Hall ◽  
Maria Fernanda Parra ◽  
...  
Keyword(s):  
Controlled Trial ◽  
Future Research ◽  
Processed Food ◽  
Warning Label ◽  
Warning Labels ◽  
Breakfast Cereal ◽  
Added Sugar ◽  
Label Condition ◽  
Fruit Drink ◽  
The Impact

Abstract BackgroundFront-of-package nutrient warning labels are one promising policy to inform healthier food choices and purchasing decisions. This study aimed to identify the impact of nutrient warning labels on product selection and the ability to correctly identify products with an excess of critical nutrients, among other outcomes in Colombia.MethodsWe conducted an online randomized experiment among 8,061 Colombian adults in October 2020. Participants were randomly assigned to a front-of-package label condition: nutrient warning, guideline daily amounts (GDA), Nutri-Score, or a no-label condition. First, they viewed a fruit drink with added sugar that was labeled per their assigned condition and one without added sugar, which was only labeled in the GDA and Nutri-Score conditions, and completed selection tasks. The primary outcomes were 1) selection of the fruit drink with added sugar as the fruit drink they would rather buy and 2) correctly identifying which fruit drink was higher in sugar. Next, they viewed four food products (cookies, yogurt, sliced bread, and breakfast cereal) with their assigned condition and answered a series of questions. Finally, they selected which of the three label types would most discourage them from consuming a specified ultra-processed food.ResultsFewer participants in the nutrient warning condition (20%) selected the added sugar fruit drink as the product they would rather buy compared to 24% in the GDA condition (p<.01), 29% in the no-label condition, and 33% in the Nutri-Score condition (both, p<.001). More participants in the nutrient warning condition (88%) correctly identified the fruit drink higher in sugar compared to the no-label condition (68%) and the Nutri-Score condition (65%) (both, p<.001). More participants in the GDA condition (91%) correctly identified the fruit drink higher in sugar compared to the nutrient warning condition (p<.01). Most participants (72%) selected the nutrient warning label as most discouraging, while only 20% selected the GDA label and 9% selected the Nutri-Score label.ConclusionsNutrient warning labels are a promising policy strategy to prevent obesity and diet-related non-communicable diseases in Colombia. Future research is needed to understand the impact of nutrient warning labels on actual ultra-processed food purchases in Colombia. Trial Registration: NCT04567004

Effect of Allium sativum on dental plaque pH-A double blinded randomized parallel placebo-controlled trial

2021 ◽  
Vol 14 (2) ◽  
pp. 977-980
Author(s):  
V. Anu ◽  
P. Saraswathi ◽  
R. Sangeetha ◽  
K. M. Savitha ◽  
P. Swetha
Keyword(s):  
Dental Plaque ◽  
Allium Sativum ◽  
Controlled Trial ◽  
Plaque Ph ◽  
Double Blinded

scholarly journals Efficacy of a U-Shaped Automatic Electric Toothbrush in Dental Plaque Removal: A Cross-Over Randomized Controlled Trial

2020 ◽  
Vol 17 (13) ◽  
pp. 4649
Author(s):  
Michele Nieri ◽  
Veronica Giuntini ◽  
Umberto Pagliaro ◽  
Monica Giani ◽  
Lorenzo Franchi ◽  
...  
Keyword(s):  
Randomized Controlled Trial ◽  
Dental Plaque ◽  
Controlled Trial ◽  
Secondary Outcome ◽  
Outcome Variable ◽  
Plaque Score ◽  
Plaque Removal ◽  
Randomized Controlled ◽  
Significant Difference ◽  
Electric Toothbrush

Background: The aim of this single-use, four-treatment, four-period (visit), cross-over, mono-centered, examiner-blind, cross-over randomized controlled trial (RCT) was to evaluate the efficacy in dental plaque removal of a U-shaped automatic electric toothbrush (U) compared to a conventional powered toothbrush (P), a habitual toothbrushing procedure (H), and no brushing (N). Methods: Eligible participants were volunteer students. Primary outcome measure was the reduction in full-mouth plaque score (FMPS) after brushing. The secondary outcome variable was a visual analogic scale (VAS) on subjective clean mouth sensation. Mixed models were performed for difference in FMPS and VAS. Results: Twenty-two participants were randomized to the treatments in the four periods of the study. The differences between treatments in FMPS reduction after brushing were statistically significant (p < 0.0001). The differences were statistically significant between the U and P groups (difference −48; 95% CI from −54 to −41) favoring the P group, and between the U and H groups (difference −45; 95% CI from −52 to −39) favoring the H group. On the contrary, the difference between the U and N groups was not significant (difference 5; 95% CI from −2 to 12) favoring the U group. The differences between treatments in clean mouth VAS was statistically significant (p < 0.0001) favoring the P and H groups. Conclusions: The U-shaped automatic electric toothbrush tested in this study proved to be not effective in removing dental plaque.

scholarly journals The effect of supragingival glycine air polishing on periodontitis during maintenance therapy: a randomized controlled trial

PeerJ ◽  
2018 ◽  
Vol 6 ◽  
pp. e4371 ◽  
Author(s):  
Hongye Lu ◽  
Lu He ◽  
Yibing Zhao ◽  
Huanxin Meng
Keyword(s):  
Maintenance Therapy ◽  
Dental Plaque ◽  
Maintenance Treatment ◽  
Controlled Trial ◽  
Clinical Parameters ◽  
Periodontal Pathogens ◽  
Detection Rates ◽  
Air Polishing ◽  
Significant Difference ◽  
Plaque Biofilm

Background Glycine air polishing has been proved to be safe, comfortable and time-saving. Whether it could substitute ultrasonic scaling to remove dental plaque biofilm during periodontal maintenance remains unclear. The purposes of this study were to evaluate the effect of supragingival glycine air polishing (SGAP) on the subgingival periodontal pathogens during maintenance therapy and to check the association of periodontal pathogens and clinical parameters. Methods Twenty-three chronic periodontitis patients during their maintenance therapy were enrolled in the 12-week study. According to randomized split-mouth design, the test side was treated with SGAP (65 μm), while the control side was treated with supragingival ultrasonic scaling and polishing (SUSP) with rubber cup. Clinical examination including plaque index (PLI), probing depth (PD), bleeding index (BI) were performed at baseline and 12 weeks post-treatment. Sampling of the subgingival plaque at each investigational site (mesiobuccal site of the mandibular first molar) was performed at baseline and 2, 4, 8, 12 weeks after maintenance treatment. Four periodontal pathogens including Porphyromonas gingivalis, Tannerella forsythia, Treponema denticola and Fusobacterium nucleatum were detected by 16S rDNA polymerase chain reaction. Results Clinical status generally improved after treatment in both groups. PLI in both groups, PD in SGAP group and bleeding on probing (%) in SUSP group significantly decreased after treatment (p < 0.05). There was no significant difference of clinical parameters between two groups before and after treatment. The detection rates of P. gingivalis, T. denticola in both groups, T. forsythia in SUSP group and F. nucleatum in SGAP group decreased after maintenance treatment in both groups, although no significant difference was found, and it rebound to baseline level at 12 weeks after maintenance treatment. There was no significant difference between SGAP group and SUSP group at any time point. T. denticola-positive sites had significantly greater BI than T. denticola-negative sites (p < 0.05). Discussion Supragingival glycine air polishing had a reliable effect in removing subgingival dental plaque biofilm during maintenance period, and three months may be a proper maintenance interval for pockets not more than 5 mm.

scholarly journals Impact of nutrient warning labels on choice of ultra-processed food and drinks high in sugar, sodium, and saturated fat in Colombia: A randomized controlled trial

2021 ◽  
Author(s):  
Mercedes Mora-Plazas ◽  
Isabella Higgins ◽  
Luis Fernando Gomez ◽  
Marissa G. Hall ◽  
Maria Fernanda Parra ◽  
...  
Keyword(s):  
Controlled Trial ◽  
Saturated Fat ◽  
Future Research ◽  
Processed Food ◽  
Warning Label ◽  
Warning Labels ◽  
Added Sugar ◽  
Food Purchases ◽  
Fruit Drink ◽  
The Impact

Abstract ObjectiveThis study assessed the impact of nutrient warning labels on product selection and ability to correctly identify less healthy products, among other outcomes, in Colombia. MethodsWe conducted an online randomized experiment among 8,061 Colombians in October 2020. Participants were assigned to a condition: nutrient warning, guideline daily amounts (GDA), Nutri-Score, or no-label. First, participants viewed two fruit drinks labeled according to their assigned condition, one with added sugar and one without, and indicated which they would prefer to buy and which was higher in sugar. Next, they viewed four food products with their assigned condition and answered questions. Finally, they selected which label type would most discourage them from consuming a specified ultra-processed food. ResultsFewer participants in the nutrient warning condition (20%) preferred to buy the added sugar fruit drink compared to 24% in the GDA condition (p<.01), 29% in the no-label condition, and 33% in the Nutri-Score condition (both, p<.001). More participants who saw the nutrient warning (88%) correctly identified the fruit drink higher in sugar compared to those who saw no-label (68%) or Nutri-Score (65%) (both, p<.001). In the GDA condition, 91% correctly identified the fruit drink higher in sugar compared to the nutrient warning condition (p<.01). Most participants (72%) selected the nutrient warning label as most discouraging. ConclusionsNutrient warning labels are a promising policy strategy to prevent obesity and diet-related non-communicable diseases in Colombia. Future research should assess nutrient warning labels’ impact on actual food purchases in Colombia. Trial Registration: NCT04567004

Diet Patterns and Caries

1994 ◽  
Vol 8 (2) ◽  
pp. 221-224 ◽  
Author(s):  
D.A.M. Geddes
Keyword(s):  
Dental Plaque ◽  
Eating Patterns ◽  
Diet Patterns ◽  
Food Items ◽  
Plaque Ph ◽  
Oral Environment ◽  
Food And Drink ◽  
Carious Process ◽  
The Individual

Few dietary studies have been designed to investigate the effects of intake patterns of food items upon the environment of the teeth. This brief review considers evidence about the effects of choice, combination, and sequence of ingested food and drink upon the pH of human dental plaque in vivo. A series of three studies, which were designed to investigate some of the intra-oral biological events associated with cariogenicity during various eating patterns, are discussed. The principal findings show that if a "meal" includes an item which contains carbohydrate such as sucrose, glucose, or fructose which is rapidly fermented by the acidogenic microorganisms in dental plaque, there will be rapid acid production and the plaque pH will fall. However, other items eaten immediately before, during, or after the consumption of the sugary item can influence the plaque pH. If the non-sugary item stimulates saliva, it will have a pH-raising effect. The remineralizing potential may be enhanced if, for instance, calcium or fluoride is released from the food. However, if one sugary item is followed by another, the demineralizing potential may be enhanced. The results of these experiments are discussed in the context of our current understanding of the dynamics of the carious process. Recent preliminary experiments suggest that other factors, such as the individual subject's speed of consumption, may also affect the cariogenic potential of the oral environment.

scholarly journals In Vivo Randomized Controlled Study of the Bone Response of All-Suture Anchors and Biocomposite Anchors

2020 ◽  
Vol 8 (4) ◽  
pp. 232596712091496
Author(s):  
Christopher M.B. Stewart ◽  
Haseem Raja ◽  
Emma Torrance ◽  
Lennard Funk
Keyword(s):  
Interrater Reliability ◽  
Suture Anchor ◽  
Controlled Trial ◽  
Intraclass Correlation ◽  
Controlled Study ◽  
Suture Anchors ◽  
Randomized Controlled ◽  
Bone Response ◽  
Significant Difference

Background: Suture anchors are widely used for labral reconstruction surgery. However, there has been some concern over the development of osteolysis around the anchor. This has been reported for both biocomposite and all-suture anchors, but they have not been compared directly in vivo. Purpose: To compare the bone response to 2 common suture anchors: a traditional biocomposite push-fit anchor and an all-suture anchor. Study Design: Randomized controlled trial; Level of evidence, 2. Methods: Included in this study were 17 patients with a total of 37 unique suture anchors. Magnetic resonance imaging scans were performed at 3 weeks and 6 months postoperatively. A total of 38 senior radiologists and shoulder surgeons evaluated the images using a previously validated system for grading the bone response around suture anchors. The mean difference in grading at 3 weeks and 6 months was calculated using unpaired t tests, and the interrater reliability was evaluated with an intraclass correlation coefficient (ICC). Results: At 3 weeks, there was no statistically significant difference in the degree of osteolysis surrounding each suture anchor type ( P = .258), with little bone response. However, on the 6-month scans, there was a significantly lower level of osteolysis seen in the all-suture anchors compared with the biocomposite anchors ( P = .040). Interrater reliability was excellent, with an ICC value of 0.975 (95% CI, 0.962-0.985). Conclusion: All-suture anchors cause significantly less osteolysis in glenoid bone at 6 months compared with biocomposite anchors.

Comparison of in vivo Human Dental Plaque pH Changes within Artificial Fissures and at Interproximal Sites

1989 ◽  
Vol 23 (6) ◽  
pp. 417-422 ◽  
Author(s):  
K. Igarashi ◽  
I.K. Lee ◽  
C.F. Schachtele
Keyword(s):  
Dental Plaque ◽  
Ph Changes ◽  
Plaque Ph

Alterations in Erythrocyte Morphology Induced by Blood Pumps

1993 ◽  
Vol 16 (9) ◽  
pp. 653-658 ◽  
Author(s):  
P. Calzavara ◽  
S. De Angeli ◽  
A. Nieri ◽  
C. Furlan ◽  
R. Bolzonella ◽  
...  
Keyword(s):  
Toxic Substances ◽  
In Vitro Test ◽  
Significant Drop ◽  
Erythrocyte Morphology ◽  
In Vivo Test ◽  
Significant Difference ◽  
Image Analyser ◽  
Vitro Test

A scanning electron microscopy was used after in vitro and in vivo tests to investigate any alterations caused by the peristaltic roller pump in erythrocyte morphology. The electron micrographs of samples were examined as follows: 1) by image analyser; 2) by applying Bessis's classification for the qualitative study of crenated red blood cells (RBCs). The in vitro test was repeated four times using blood from healthy donors. Each basal blood sample was divided into 250 ml portions, each of which was recirculated for 12 minutes at different flow rates. In order to verify any persistent erythrocyte damage caused by the peristaltic pump, 15 minutes after recirculation at 450 ml/min, another sample was prepared using the blood remaining from the last test. A statistically significant direct correlation was found between blood flow (Qb) increase and the percentage of morphologically altered RBCs, when either using an image analyser (r = 0.97; p < 0.05) or Bessis's classification (r = 0.95; p < 0.05). However, neither method showed any statistically significant difference between the percentage of deformed RBCs, determined in the basal sample, or in the percentage found at the end of the 450 ml/min test after standing 15 minutes at room temperature. The in vivo test was carried out on 6 patients over 2 dialysis sessions, which differed only for the Qb: 250 versus 400 ml/min. The two dialysis sessions gave comparable results when using both study methods regarding the presence of deformed RBCs. While Bessis's classification showed a significant drop in the post-dialysis percentage of dysmorphic RBCs compared to the pre-dialysis value, both with a Qb of 250 ml/min and 400 ml/min, no significant change was found with the image analyser. The contradictory results of the two tests can be attributed to the presence of spherocytes and stomatocytes in the in vivo test which on the other hand were absent in the in vitro test and not easily distinguished by the image analyser with the parameter used. Reduction in the number of deformed RBCs after dialysis in the in vivo test can be attributed to improvement in the acidosis, correction of the hydroelectric imbalances and removal of toxic substances as a result of dialysis, thus allowing the echinocytes, spherocytes and stomatocytes to be transformed into discocytes.

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