Titre : Allélopathie

Allélopathie : Questions médicales fréquentes

Termes MeSH sélectionnés :

Toothbrushing
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"description": "Quels symptômes indiquent une allélopathie ?\nLes symptômes varient-ils selon les espèces ?\nComment l'allélopathie affecte-t-elle la biodiversité ?\nLes symptômes sont-ils réversibles ?\nL'allélopathie peut-elle causer des dommages permanents ?", "url": "https://questionsmedicales.fr/mesh/D064089?mesh_terms=Toothbrushing&page=3#section-symptômes" }, { "@type": "MedicalWebPage", "name": "Prévention", "headline": "Prévention sur Allélopathie", "description": "Comment prévenir l'allélopathie dans les cultures ?\nL'espacement des plantes est-il important ?\nLes pratiques culturales peuvent-elles aider ?\nFaut-il surveiller les plantes voisines ?\nLes conditions climatiques influencent-elles l'allélopathie ?", "url": "https://questionsmedicales.fr/mesh/D064089?mesh_terms=Toothbrushing&page=3#section-prévention" }, { "@type": "MedicalWebPage", "name": "Traitements", "headline": "Traitements sur Allélopathie", "description": "Comment traiter les effets de l'allélopathie ?\nLes amendements du sol aident-ils ?\nPeut-on utiliser des plantes compagnes pour contrer l'allélopathie ?\nLes traitements chimiques sont-ils efficaces ?\nComment la rotation des cultures aide-t-elle ?", "url": "https://questionsmedicales.fr/mesh/D064089?mesh_terms=Toothbrushing&page=3#section-traitements" }, { "@type": "MedicalWebPage", "name": "Complications", "headline": "Complications sur Allélopathie", "description": "Quelles complications peuvent résulter de l'allélopathie ?\nL'allélopathie peut-elle affecter la santé du sol ?\nY a-t-il des impacts économiques liés à l'allélopathie ?\nLes plantes envahissantes exacerbent-elles l'allélopathie ?\nComment l'allélopathie affecte-t-elle les écosystèmes ?", "url": "https://questionsmedicales.fr/mesh/D064089?mesh_terms=Toothbrushing&page=3#section-complications" }, { "@type": "MedicalWebPage", "name": "Facteurs de risque", "headline": "Facteurs de risque sur Allélopathie", "description": "Quels facteurs augmentent le risque d'allélopathie ?\nLe type de sol influence-t-il l'allélopathie ?\nLes conditions climatiques jouent-elles un rôle ?\nLes pratiques agricoles influencent-elles le risque ?\nLes interactions entre espèces sont-elles un facteur ?", "url": "https://questionsmedicales.fr/mesh/D064089?mesh_terms=Toothbrushing&page=3#section-facteurs de risque" } ] }, { "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "Comment identifier l'allélopathie chez les plantes ?", "position": 1, "acceptedAnswer": { "@type": "Answer", "text": "L'allélopathie se diagnostique par l'observation de la croissance des plantes et des tests de bioassay." } }, { "@type": "Question", "name": "Quels tests peuvent confirmer l'allélopathie ?", "position": 2, "acceptedAnswer": { "@type": "Answer", "text": "Des tests de culture en milieu contrôlé et des analyses chimiques des exsudats racinaires peuvent confirmer." } }, { "@type": "Question", "name": "Quels signes indiquent une interaction allélopathique ?", "position": 3, "acceptedAnswer": { "@type": "Answer", "text": "Des signes incluent un retard de croissance, une décoloration des feuilles et une mortalité accrue." } }, { "@type": "Question", "name": "L'allélopathie peut-elle être confondue avec d'autres maladies ?", "position": 4, "acceptedAnswer": { "@type": "Answer", "text": "Oui, elle peut être confondue avec des maladies fongiques ou des carences nutritionnelles." } }, { "@type": "Question", "name": "Quels facteurs environnementaux influencent le diagnostic ?", "position": 5, "acceptedAnswer": { "@type": "Answer", "text": "L'humidité, le type de sol et la densité de plantation peuvent influencer les résultats du diagnostic." } }, { "@type": "Question", "name": "Quels symptômes indiquent une allélopathie ?", "position": 6, "acceptedAnswer": { "@type": "Answer", "text": "Les symptômes incluent un flétrissement, une croissance réduite et des feuilles jaunies." } }, { "@type": "Question", "name": "Les symptômes varient-ils selon les espèces ?", "position": 7, "acceptedAnswer": { "@type": "Answer", "text": "Oui, les symptômes d'allélopathie peuvent varier selon les espèces de plantes impliquées." } }, { "@type": "Question", "name": "Comment l'allélopathie affecte-t-elle la biodiversité ?", "position": 8, "acceptedAnswer": { "@type": "Answer", "text": "Elle peut réduire la biodiversité en inhibant la croissance d'espèces sensibles dans un écosystème." } }, { "@type": "Question", "name": "Les symptômes sont-ils réversibles ?", "position": 9, "acceptedAnswer": { "@type": "Answer", "text": "Dans certains cas, les symptômes peuvent être réversibles si les conditions s'améliorent." } }, { "@type": "Question", "name": "L'allélopathie peut-elle causer des dommages permanents ?", "position": 10, "acceptedAnswer": { "@type": "Answer", "text": "Oui, des dommages permanents peuvent survenir si l'exposition à des substances allélopathiques est prolongée." } }, { "@type": "Question", "name": "Comment prévenir l'allélopathie dans les cultures ?", "position": 11, "acceptedAnswer": { "@type": "Answer", "text": "La prévention inclut la sélection de variétés de plantes compatibles et la gestion des sols." } }, { "@type": "Question", "name": "L'espacement des plantes est-il important ?", "position": 12, "acceptedAnswer": { "@type": "Answer", "text": "Oui, un espacement adéquat peut réduire les interactions allélopathiques entre les plantes." } }, { "@type": "Question", "name": "Les pratiques culturales peuvent-elles aider ?", "position": 13, "acceptedAnswer": { "@type": "Answer", "text": "Oui, des pratiques culturales appropriées peuvent minimiser les effets de l'allélopathie." } }, { "@type": "Question", "name": "Faut-il surveiller les plantes voisines ?", "position": 14, "acceptedAnswer": { "@type": "Answer", "text": "Oui, surveiller les plantes voisines peut aider à détecter les signes d'allélopathie tôt." } }, { "@type": "Question", "name": "Les conditions climatiques influencent-elles l'allélopathie ?", "position": 15, "acceptedAnswer": { "@type": "Answer", "text": "Oui, les conditions climatiques comme l'humidité et la température peuvent influencer l'allélopathie." } }, { "@type": "Question", "name": "Comment traiter les effets de l'allélopathie ?", "position": 16, "acceptedAnswer": { "@type": "Answer", "text": "Le traitement inclut l'amélioration des conditions de croissance et l'utilisation de variétés résistantes." } }, { "@type": "Question", "name": "Les amendements du sol aident-ils ?", "position": 17, "acceptedAnswer": { "@type": "Answer", "text": "Oui, les amendements organiques peuvent améliorer la santé du sol et réduire les effets allélopathiques." } }, { "@type": "Question", "name": "Peut-on utiliser des plantes compagnes pour contrer l'allélopathie ?", "position": 18, "acceptedAnswer": { "@type": "Answer", "text": "Oui, certaines plantes compagnes peuvent atténuer les effets négatifs de l'allélopathie." } }, { "@type": "Question", "name": "Les traitements chimiques sont-ils efficaces ?", "position": 19, "acceptedAnswer": { "@type": "Answer", "text": "Des traitements chimiques peuvent être utilisés, mais ils doivent être appliqués avec précaution." } }, { "@type": "Question", "name": "Comment la rotation des cultures aide-t-elle ?", "position": 20, "acceptedAnswer": { "@type": "Answer", "text": "La rotation des cultures peut réduire l'accumulation de substances allélopathiques dans le sol." } }, { "@type": "Question", "name": "Quelles complications peuvent résulter de l'allélopathie ?", "position": 21, "acceptedAnswer": { "@type": "Answer", "text": "Les complications incluent la réduction des rendements agricoles et la perte de biodiversité." } }, { "@type": "Question", "name": "L'allélopathie peut-elle affecter la santé du sol ?", "position": 22, "acceptedAnswer": { "@type": "Answer", "text": "Oui, l'allélopathie peut dégrader la santé du sol en perturbant les communautés microbiennes." } }, { "@type": "Question", "name": "Y a-t-il des impacts économiques liés à l'allélopathie ?", "position": 23, "acceptedAnswer": { "@type": "Answer", "text": "Oui, l'allélopathie peut entraîner des pertes économiques dues à des rendements réduits." } }, { "@type": "Question", "name": "Les plantes envahissantes exacerbent-elles l'allélopathie ?", "position": 24, "acceptedAnswer": { "@type": "Answer", "text": "Oui, les plantes envahissantes peuvent intensifier les effets allélopathiques sur les espèces natives." } }, { "@type": "Question", "name": "Comment l'allélopathie affecte-t-elle les écosystèmes ?", "position": 25, "acceptedAnswer": { "@type": "Answer", "text": "Elle peut perturber les écosystèmes en modifiant les interactions entre les espèces végétales." } }, { "@type": "Question", "name": "Quels facteurs augmentent le risque d'allélopathie ?", "position": 26, "acceptedAnswer": { "@type": "Answer", "text": "Les facteurs incluent la densité de plantation élevée et la présence de certaines espèces végétales." } }, { "@type": "Question", "name": "Le type de sol influence-t-il l'allélopathie ?", "position": 27, "acceptedAnswer": { "@type": "Answer", "text": "Oui, certains types de sol peuvent favoriser l'expression des effets allélopathiques." } }, { "@type": "Question", "name": "Les conditions climatiques jouent-elles un rôle ?", "position": 28, "acceptedAnswer": { "@type": "Answer", "text": "Oui, des conditions climatiques extrêmes peuvent exacerber les effets de l'allélopathie." } }, { "@type": "Question", "name": "Les pratiques agricoles influencent-elles le risque ?", "position": 29, "acceptedAnswer": { "@type": "Answer", "text": "Oui, des pratiques agricoles inappropriées peuvent augmenter le risque d'allélopathie." } }, { "@type": "Question", "name": "Les interactions entre espèces sont-elles un facteur ?", "position": 30, "acceptedAnswer": { "@type": "Answer", "text": "Oui, les interactions entre espèces peuvent augmenter le risque d'allélopathie dans un écosystème." } } ] } ] }

Sources (343 au total)

Associations of adverse childhood experiences with caries and toothbrushing in adolescents. The Young-HUNT4 Survey.

Adverse childhood experiences (ACEs) are associated with poor oral health. Using a life course theoretical framework, this study explored the associations of specific and cumulative ACEs with caries a... Participants were adolescents (n = 6351) age 13-17 years from The Young-HUNT4 Survey. Clinical data were retrieved from dental health records. Oral health outcomes were toothbrushing frequency, dentin... Adolescents exposed to physical abuse by others, sexual abuse by peers, parental separation/divorce, bullying, or who had witnessed violence, were more likely to report non-daily toothbrushing compare... Several specific ACEs were associated with non-daily toothbrushing and a higher caries experience among Norwegian adolescents in the Young-HUNT4 Survey....

The efficacy of manual toothbrushes in patients with fixed orthodontic appliances: a randomized clinical trial.

This study aims to evaluate three types of manual toothbrushes [Cross action (CA), Flat trim (FT), and orthodontic type (OT)] in terms of efficacy in plaque removal in patients undergoing fixed orthod... Manual toothbrushes are an essential part of oral hygiene for primary prevention. Plaque control, however, can be influenced by a number of individual and material-related factors. Individual factors ... The experiment followed the Consolidated Standards of Reporting Trials (CONSORT) guidelines. This was a three treatment, three-period crossover clinical trial with a single brushing exercise. Thirty s... Of the thirty-four subjects enrolled in the study, thirty of the subjects met the inclusion criteria and completed all three periods of the study. The mean age was 19.5 ± 1.52 years, with a range of 1... Plaque was significantly removed by the conventional FT toothbrush after a single brushing compared to the OT and CA types....

Robot and mechanical testing of a specialist manual toothbrush for cleaning efficacy and improved force control.

Toothbrushes require flexibility to access all dental surfaces and remove plaque effectively, but they should also aim to prevent or limit overbrushing and consequent damage to teeth and gums. In two ... In Study 1, a universal testing machine (Instron E 10,000) with a specially designed setup was used to test the deflection behaviour of toothbrush head and neck. Untufted toothbrushes were fixed in a ... Study 1 showed that the flexible-neck toothbrush deflected 2 to 2.5 times more than the rigid-neck reference toothbrush when same force was applied to the toothbrush head. Study 2 revealed that all fi... The addition of a flexible-neck component to the toothbrush designs helped to reduce stiffness and may allow more effective cleaning compared to rigid designs with controlled force distribution on the...

In-Vitro Tooth Cleaning Efficacy and Filament End Rounding of Different Manual Children's Toothbrushes.

This in-vitro study aimed to investigate the cleaning efficacy of 18 different manual children's toothbrushes applying horizontal, vertical, and rotational movements, as well as to evaluate the roundi... Models equipped with artificial teeth (coated with titanium dioxide) were brushed using a brushing machine with clamped manual children's toothbrushes. The machine carried out horizontal, vertical, an... The rotational and the vertical movements achieved the best cleaning efficacy with all tested toothbrushes. The vast majority of the tested toothbrushes had their poorest cleaning efficacy in the hori... Based on the present results, it could be concluded that the cleaning efficacy of different manual children's toothbrushes varied considerably. The best cleaning efficacy was almost always observed fo...

Assessment of knowledge, attitude and practice of medical and dental students about maintaining and disinfecting toothbrushes.

Proper toothbrush care and maintenance play an important role in oral health. This study aimed to investigate the knowledge, attitude and practice of medical and dental students regarding the maintena... This cross-sectional descriptive study examined 824 medical and dental students of Babol University of Medical Sciences, Babol, Iran. Data were collected using a researcher-made questionnaire and anal... Nearly 63.7% of the students had a good level of knowledge regarding toothbrush maintenance, 62.2% had a positive attitude toward toothbrush care, and 53.7% had a good practice. The mean scores of kno... This study indicated the moderate level of knowledge, attitude, and practice of medical and dental students in maintaining and disinfecting their toothbrushes. The students' oral health habits were al...

Unemployment and expenditure on health and education as mediators of the association between toothbrushing and global income inequalities.

The study assessed the association of country-level income inequalities with the percentage of schoolchildren toothbrushing-at-least-twice-daily; and the mediating effect of country-level unemployment... This was an ecological study. The dependent variable was country-level toothbrushing-at-least-twice-daily among 11-15-year-old schoolchildren. Data for the period 2009 to 2019 were extracted from two ... Data were available for 127 countries. The mean (SD) percentage of children who brushed-at-least-twice-daily was 67.3 (16.1), the mean (SD) GC = 41.4 (8.2), unemployment rate = 7.5 (4.7) and EH&E = 8.... Unemployment and EH&E mediated the association between income inequality and toothbrushing. Country-level factors may indirectly impact toothbrushing....

Antiplaque and antigingivitis efficacy of new and worn manual toothbrushes: A systematic review and meta-analysis.

To systematically review the literature about the antiplaque and antigingivitis efficacy of new and worn manual toothbrushes.... Five databases were searched to identify randomized controlled trials, involving adults, comparing the clinical efficacy of new and worn manual toothbrushes. Experimental groups need to have different... Eight studies were included, totalling 344 individuals. In studies with a single-use design, no statistically difference was found between new and worn toothbrushes for antiplaque efficacy (SMD:-0.39;... New and worn toothbrushes presented similar antiplaque and antigingivitis efficacy. However, further randomized controlled trials, with a lower risk of bias, are needed to enhance the certainty of thi...

Effectiveness of a sonic-flosser toothbrush with different size brush heads and manual toothbrush plus dental floss on plaque, gingival bleeding and inflammation in adults with naturally occurring gingivitis: A 4-week randomized controlled trial.

To compare the effectiveness of three oral hygiene groups: a novel sonic-flosser toothbrush with a compact brush head, a novel sonic-flosser toothbrush with a full size brush head and manual toothbrus... One hundred and five (n = 105) healthy adults were enrolled in this randomized, examiner-blind, three-group, parallel clinical trial. Subjects were assigned to one of three groups: sonic-flosser tooth... All subjects completed the study. All three groups demonstrated a significant reduction in BOP, MGI and RMNPI from baseline to 4-weeks for all areas recorded (p < 0.001), except gingival margin plaque... The sonic-flosser toothbrush with a full size or compact brush head was statistically and clinically more effective at improving gingival health and reducing plaque than manual toothbrush and dental f...

Effectiveness of different types of toothbrushes on periodontal health in orthodontic patients with gingivitis: A randomized controlled study.

The aim of the study is to evaluate the effectiveness of different toothbrushes in reducing gingival inflammation and dental biofilm removal in gingivitis patients with fixed orthodontic appliances.... Following baseline clinical assessments, including the Turesky modification of the Quigley-Hein plaque index (TQHI), gingival index (GI), bleeding on probing (BOP), and probing pocket depth (PPD), all... Thirty-six patients with a mean age of 23.14 ± 3.86 (18-32 years) participated in the study. All groups with twelve patients each demonstrated significant improvements in clinical parameters compared ... The ST-TB was shown to be more effective in reducing gingival inflammation over three months, while it demonstrated similar efficacy to the O-TB in dental biofilm removal. Further research is necessar... This study was registered with the National Library of Medicine Clinical Trials Registry Platform on 19/07/2024 as NCT06510179....