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1.
Braz Oral Res ; 35: e29, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-33605359

RESUMEN

This study evaluated how Er,Cr:YSGG laser, associated or not with 5% fluoride varnish, influences the surface roughness and volume loss of bovine root dentin submitted to erosive and/or abrasive wear. One hundred and twenty dentin specimens were divided into the groups: without preventive treatment (WPT), 5% fluoride varnish (FV); Er,Cr:YSGG laser irradiation (L), and varnish combined with laser (FV + L). The specimens (n = 10) were subdivided into: 1 = erosion (E); 2 = abrasion (A); and 3 = erosion followed by abrasion (E + A). The erosive solution used was a soft-drink (pH = 2.42 at 4ºC) applied in 5-min cycles twice a day for 10d. Abrasive wear involved brushing for 60s with an electric brush (1,600-oscillations/s) at a load of 2.0N. Surface roughness and volume loss were evaluated using a laser scanning confocal microscope. Roughness data were submitted to one-way ANOVA and Tukey post-hoc test. For volume loss, the Kruskal-Wallis and Dunn's post-hoc tests were used (α = 5%). The lowest values of roughness were found in the control areas of all subgroups (p > 0.05). In the experimental area, the [(WPT) + (E+A)] subgroup had a significantly higher roughness (5.712 ± 0.163 µm 2 ) than the other subgroups (p < 0.05). The L and (FV + L) groups had statistically similar roughness, regardless of the type of wear. The (FV + L) group had the lowest volume loss, regardless of the type of wear performed: [(FV + L) + (E)] = 7.5%, [(FV + L) + (A) = 7.3%, and [(FV + L) + (E + A)] = 8.1%. The subgroup [(WPT) + (E + A)] had the highest volume loss (52.3%). The proposed treatments were effective in controlling dentin roughness. Laser irradiation can be an effective method to increase root dentin resistance after challenges and limit problems related to non-carious lesions.


Asunto(s)
Láseres de Estado Sólido , Erosión de los Dientes , Animales , Bovinos , Dentina , Fluoruros , Láseres de Estado Sólido/uso terapéutico , Erosión de los Dientes/etiología , Raíz del Diente , Cepillado Dental
2.
São Paulo; s.n; 20210219. 114 p.
Tesis en Portugués | LILACS, BBO - Odontología | ID: biblio-1147723

RESUMEN

Diversas medidas vêm sendo propostas para a prevenção e controle do desgaste erosivo, como o uso de produtos fluoretados e lasers de alta potência. Este estudo in situ, cego e cruzado, visou avaliar o efeito do laser de CO2 (9.3 ?m), associado ou não a solução de AmF/NaF/SnCl2, na prevenção (Etapa 1: prevenção da lesão, amostras inicialmente hígidas) e controle (Etapa 2: controle da progressão da lesão, amostras previamente erodidas) da erosão dental em esmalte dental humano. As etapas foram divididas em duas fases, uma sem a exposição à solução de AmF/NaF/SnCl2 (Fase I) e outra com (Fase II). Para tanto, 192 fragmentos de esmalte dental humano (3 x 3 x 1 mm) foram divididos, randomicamente, em 4 grupos experimentais em cada etapa (n=12): C - sem tratamento (controle negativo); F - solução de AmF/NaF/SnCl2 (controle positivo); L - irradiação com laser de CO2 (9.3 ? ); L + - laser de CO2 (9.3 ? ) + solução de AmF/NaF/SnCl2. Doze voluntários utilizaram um dispositivo removível inferior bilateral contendo 8 amostras/fase. As amostras foram submetidas ao desafio erosivo ex vivo por meio de sua imersão em ácido cítrico (1,0%; pH 2,3; 5 minutos; 4x/dia em intervalos diferentes para cada fase, durante 5 dias). A perda de superfície foi determinada através da perfilometria óptica (n=12), e a morfologioa de superfície foi observada em Microscopia Eletrônica de Varredura (MEV). Para MEV, foram selecionadas 24 amostras (n=3) submetidas aos 5 dias de ciclagem e, adicionalmente, 24 amostras extras (n=3), submetidas aos tratamentos de superfície. Os dados das amostras da Etapa 1 foram analisados estatisticamente através de ANOVA 1-fator, e as da Etapa 2, através de ANOVA 2-fatores para medidas repetidas (Tempo - lesão inicial e após 5 dias; e Tratamento - C, F, L, L + F); ambos com posterior comparação múltipla através do teste de Tukey. Na análise da Etapa 1, observou-se que os grupos L (4,59 ± 2,95 ? )e L + F (1 58 ± 1 24 ? ) apresentaram melhores resultados na prevenção de lesão de erosão, diferindo estatisticamente dos grupos C e F, os quais não diferiram entre si. E na etapa 2, o grupo L + F (4,99 ± 1,17 ? ) apresentou melhores resultados no controle da progressão da lesão, sendo o único grupo a não apresentar perda de superfície significativa entre lesão inicial e após 5 dias de ciclagem quando comparado com a lesão inicial. Portanto, o laser de CO2 apresentou potencial em prevenir e controlar a progressão de erosão em esmalte dental humano, apresentando maior eficácia quando associado à solução de AmF/NaF/SnCl2.


Asunto(s)
Erosión de los Dientes
3.
Quintessence Int ; 0(0): 0, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-33491383

RESUMEN

Objective: This study examined the impact of early biofilm on the tooth surface, during the assessment of initial enamel erosion using swept-source optical coherence tomography (SS-OCT). Method and materials: Forty-five enamel windows of 2 × 4 mm2 were prepared on 23 extracted human teeth. The specimens were exposed to citric acid (pH 3.2) for 30 minutes and randomly divided into three groups (n = 15): Group 1, no biofilm; Group 2, 1-day-old biofilm; and Group 3, 3-day-old biofilm. Specimens in Groups 2 and 3 were inoculated with oral bacteria (Streptococcus sanguinis, Streptococcus mitis, and Actinomyces naeslundii) to produce early laboratory-cultivated biofilms for 1 and 3 days respectively. Surface microhardness (SMH) measurements were taken at pre- (t1) and post-erosion (t2); and SS-OCT scans were done at t1, t2, and post-biofilm cultivation (t3). Integrated reflectivity (IR) of the tooth-air interface (IRsurface) and enamel (IRenamel) were computed from the mean A-scans. Statistical analysis was performed using paired t tests and one-way ANOVA (α = .05). Results: A significant increase in IRenamel was observed at t2 (P < .05). At t3, IRsurface between Group 1 (control) and Group 2 (P = .012) as well as Group 3 (P = .001) were significantly different. Significant variances in IRenamel were perceived between t2 and t3 for Groups 2 and 3 but not for Group 1. Conclusion: As early biofilm affected SS-OCT assessment of initial enamel erosion, they should be removed from the tooth surface prior to OCT procedures..


Asunto(s)
Desmineralización Dental , Erosión de los Dientes , Actinomyces , Biopelículas , Esmalte Dental/diagnóstico por imagen , Humanos , Tomografía de Coherencia Óptica , Desmineralización Dental/diagnóstico por imagen , Erosión de los Dientes/diagnóstico por imagen
4.
Oral Health Prev Dent ; 19(1): 51-57, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-33491378

RESUMEN

PURPOSE: A previous clinical study showed that the prevalence of erosive toothwear in vegetarians is statistically significantly higher than in nonvegetarians, due to the consumption of vinegar and other acidic foodstuffs. To adequately inform patients, this study investigated the erosive potential of bottled salad dressings available in Switzerland and compared it with that of orange juice. Materials and Methods: One hundred enamel samples of bovine teeth were divided into ten groups. Samples were placed in 1 of 9 bottled salad dressings or orange juice (Granini) for 2 min. Afterwards, they were rinsed with Zürich tap water for 30 s, followed by abrasion with a toothbrush for 20 brush strokes and a toothpaste-saliva mixture. Erosive/abrasive enamel wear was determined with contact profilometry after 40 cycles. Results: The enamel wear (median/IQR) caused by Tradition Sauce Balsamique (9.5 µm/5.3 µm), M-Classic Dressing Italiano (10.9 µm/12.3 µm), Betty Bossi Balsamico Dressing (9.4 µm/4.5 µm) and Thomy Balsamico Vinaigrette Dressing (14.2 µm/6.5 µm) was statistically significantly higher than that caused by orange juice (2.4 µm/0.8 µm). Enamel wear caused by M-Classic Dressing French Joghurt (0.2 µm/0.2 µm) and Coop Qualité & Prix French Dressing (1.2 µm/1.0 µm) was statistically significantly lower compared to that of orange juice. Conclusions: The pure balsamico vinegar-based dressings (Italian type) showed a statistically significantly higher erosive potential than orange juice, whereas dressings containing calcium-rich products (enriched with milk and/or cream) (French-type) caused lower enamel wear than orange juice. The study shows that some bottled dressings have erosive potential even higher than orange juice and patients should be informed accordingly.


Asunto(s)
Abrasión de los Dientes , Erosión de los Dientes , Animales , Bovinos , Condimentos , Esmalte Dental , Humanos , Suiza , Erosión de los Dientes/inducido químicamente
5.
Gen Dent ; 69(1): 44-49, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-33350955

RESUMEN

This study aimed to evaluate the erosive potential of powdered juice drinks on dental enamel in 2 stages: physiochemical characterization and erosive challenge testing. In stage 1, the pH and titratable acidity of 5 commercially available powdered juices in 10 different flavors were analyzed. Five treatment groups were then established based on the pH values, titratable acidity, and presence of citric acid in the juices, and their energy-dispersive X-ray (EDX) spectroscopy profiles were studied. In stage 2, the erosive effect of the juices was tested using a pH cycling model; polished bovine dental enamel blocks (n = 8) were treated 4 times daily on 5 consecutive days with 1% citric acid (positive control) or lemon, orange, pineapple, or cashew juice. The specimens were immersed in the erosive solutions, under agitation (100 rpm), for 1 minute at 25°C. Overnight and between treatments, the blocks were stored in artificial saliva without agitation. At the end of cycling, the enamel surfaces were evaluated by profilometry and scanning electron microscopy. The stage 2 results were submitted to 1-way analysis of variance followed by Tukey test (α = 0.05). The pH values of the juices ranged between 2.86 (lemon) and 3.84 (cashew), while the titratable acidity ranged from 14.5 (cashew) to 90.00 (lemon) mmol/L. Lemon juice showed the least calcium content (2.76%) and no (0.00%) phosphorus concentration. Orange, pineapple, and cashew juices showed the greatest concentrations of calcium and phosphorus and were therefore less erosive than lemon juice. The mean [SD] surface loss was higher in the lemon juice group (0.52 [0.16] µm), with no significant differences (P > 0.05) from the control (0.39 [0.09] µm) and orange juice (0.41 [0.12] µm). In groups exposed to pineapple juice (0.36 [0.04] µm) and cashew juice (0.16 [0.08] µm), the surface loss was significantly lower (P < 0.05) than that found in lemon juice. The results demonstrate that powdered juice drinks (especially lemon juice) present erosive potential and lead to surface loss of dental enamel.


Asunto(s)
Citrus sinensis , Erosión de los Dientes , Animales , Bebidas , Bovinos , Esmalte Dental , Concentración de Iones de Hidrógeno , Polvos , Erosión de los Dientes/inducido químicamente
6.
J Clin Pediatr Dent ; 44(6): 429-435, 2020 Dec 01.
Artículo en Inglés | MEDLINE | ID: mdl-33378467

RESUMEN

OBJECTIVES: To compare the prevalence of parafunctional habits, erosive tooth wear and occurrence of tooth injuries among children being under the care of Social Welfare Centre and children treated in the Department of Children's Dentistry of the Medical University of Warsaw. STUDY DESIGN: The study contains environmental and medical interviews, record-based analysis and clinical examination. Parafunctional habits were rated on the base of dental interviews and clinical examinations. The occlusal surfaces were evaluated by visual examination using modified tooth wear index (TWI). Tooth injuries were reported from a medical interview labeled using Andreasen classification. The consent of the bioethics committee and guardians of children participated in the study was obtained. RESULTS: The study involved 782 patients, including 404 children from dysfunctional families (average age 11,4 ± 3,7) and 378 from ordinary families-control group (8,53 ± 3,92). In the study group we observed higher prevalence of erosive tooth wear (44,66% vs 18,02% p=0,000), dental trauma (9,4% vs 3,44% p=0,001) and a presence of parafunctional habits (67,8% vs 20,4 % p=0,000). CONCLUSION: The occurrence of parafunctional habits, erosive tooth wear and tooth injuries may be an indicator of domestic violence and a component of maltreated child syndrome.


Asunto(s)
Violencia Doméstica , Erosión de los Dientes , Traumatismos de los Dientes , Desgaste de los Dientes , Adolescente , Niño , Hábitos , Humanos , Prevalencia , Erosión de los Dientes/epidemiología , Erosión de los Dientes/etiología , Traumatismos de los Dientes/epidemiología , Desgaste de los Dientes/epidemiología , Desgaste de los Dientes/etiología
7.
Oral Health Prev Dent ; 18(1): 959-971, 2020 10 29.
Artículo en Inglés | MEDLINE | ID: mdl-33215487

RESUMEN

PURPOSE: This study aimed to estimate the prevalence, distribution, and the associated factors of tooth erosion in Turkish school children. MATERIALS AND METHODS: A cross-sectional analysis was performed on a representative sample of 473 children (aged 7-14 years) from 11 public schools in Turkey. Parents were asked to fill out a questionnaire to collect sociodemographic data. A questionnaire was also given to the children, to collect data pertaining to personal demographic details and habits of consuming acidic foods and drinks. The O'Sullivan index was used to assess affected permanent teeth. The data were analysed using a chi-square test and multivariate logistic regression analysis. RESULTS: Dental erosion was observed in 21.8% of the children. Lesions were most often observed in the enamel with less than half of the buccal surface affected. Erosion was found to be statistically significantly higher in older children and in those with an elevated body mass index (BMI) (p <0.05). The consumption of fruit juices, drinks with cola, orange soft drinks, gaseous, cocoa milk, iced tea, sodas, sports drinks, energy drinks, oranges, lemons, kiwis, grapefruits, apples, peaches, and fruit yogurts was statistically significantly higher in students with erosion (p <0.05). There was no statistically significant relationship between students' sex, systemic disease, premature birth and low birth weight, exercise activity level, socioeconomic status, parental education level, and oral hygiene habits with erosion (p >0.05). CONCLUSION: Although erosive lesions were limited to the enamel, the prevalence of erosion was high. Erosion was statistically significantly associated with older age, elevated BMI, consumption of certain beverages, and fruit.


Asunto(s)
Erosión de los Dientes , Adolescente , Anciano , Bebidas , Bebidas Gaseosas/efectos adversos , Niño , Estudios Transversales , Conducta Alimentaria , Humanos , Prevalencia , Erosión de los Dientes/epidemiología , Erosión de los Dientes/etiología , Turquia/epidemiología
8.
Braz Dent J ; 31(6): 664-672, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-33237239

RESUMEN

Evaluated the effect of CPP-ACP/NaF and xylitol/NaF varnishes in reduce erosion and progression of erosion. Forty enamel blocks were divided into four groups (n=10): G1=CPP-ACP/NaF varnish (MI varnishTM); G2=xylitol/NaF varnish (Profluorid®); G3=NaF varnish (Duraphat®, positive control) and G4=deionized water (MilliQ®, negative control). Samples were immersed in Sprite ZeroTM (pH 2.58, 4x/day, 3 days), in between immersions, the specimens stayed in artificial saliva. After 3 days of erosion, the eroded area was divided in two (half of one received an additional varnish layer while the other half repeated the same 3-day erosion cycle). The 3D, non-contact profilometry technique was used to determinate tooth structure loss (TSL) and surface roughness (SR). Scanning electron microscopy (SEM) and 3D images were utilized to evaluate the topography of the samples. Mann-Whitney, one-way ANOVA and Tukey tests were used (significance level of 0.05%). SEM and 3D images were descriptively evaluated. After 3 or 6 days of erosion, all tested varnishes were better than G4 (p<0.05) for TSL and SR. In addition, G1 had lower values for TSL than G3 (p<0.05) after 3 days of erosion. Under SEM and 3D images observation, all groups presented porosity, irregularities and depressions on the surface enamel after 3 and 6 days of erosion, more pronounced in G4. An application of topical NaF varnishes was effective in reducing TSL and enamel roughness after erosion challenges, being the CCP-ACP/NaF varnish more effective than NaF varnish and water after 3 days of erosion.


Asunto(s)
Erosión de los Dientes , Caseínas , Esmalte Dental , Fluoruros Tópicos , Humanos , Fluoruro de Sodio , Erosión de los Dientes/prevención & control , Xilitol
9.
Braz Oral Res ; 34: e115, 2020 Sep 04.
Artículo en Inglés | MEDLINE | ID: mdl-32901730

RESUMEN

The aim of the present transversal study was to evaluate the clinical and biochemical salivary parameters of children with and without erosive tooth wear (ETW). The study population was children aged 4 to 9 years. A trained and calibrated examiner (kappa value for intraexaminer reliability = 0.89) classified the children into ETW (n = 24) and control groups (n = 24), and applied the O'Brien index. The salivary flow rate was initially evaluated by stimulated sialometry (paraffin chewing). Afterwards, the collected saliva was submitted to biochemical analyses of pH, uric acid, total buffering capacity, ferric-reducing antioxidant power, reduced glutathione, calcium, and phosphorus. Among the ETW children, 20 (83%) had dental lesions restricted to enamel, and 4 (17%) presented lesions affecting both enamel and dentin. A statistically significant difference between the groups was obtained only for the pH values (t-test; p = 0.004), with averages of 7.31 and 7.56 for the control and the ETW groups, respectively. Considering the parameters evaluated in general, it is suggested that the salivary profile of children with ETW does not differ considerably from that of children without ETW. However, the pH mean value seems to be slightly higher in ETW children, but is still within the normal physiological range.


Asunto(s)
Desgaste de los Dientes , Calcio , Niño , Preescolar , Esmalte Dental , Humanos , Saliva , Erosión de los Dientes
10.
Oral Health Prev Dent ; 18(1): 701-706, 2020 Sep 04.
Artículo en Inglés | MEDLINE | ID: mdl-32895652

RESUMEN

PURPOSE: To evaluate the effects of stomach and duodenal fluid on enamel surfaces, simulating the action of refluxed liquid in patients with duodenogastric reflux. METHODS AND MATERIALS: Forty bovine incisors were used to obtain enamel fragments. Only half of the enamel surface was exposed to erosive challenges; the samples were then randomly divided into the following four groups (n = 10): G1: HCl; G2: HCl + pepsin; G3: HCl + ox bile + NaHCO3; and G4: HCl + pancreatin + NaHCO3. The specimens were placed in 37°C solutions, six times per day, for 20 s, over a period of 5 days and then analysed for morphology, surface roughness and the step formed on the dental enamel using confocal laser microscopy. The data were analysed using the Kruskal-Wallis and Dunn's test (p <0.05). RESULTS: Both analyses revealed a higher step and surface roughness for the G3 group (5.6 µm ± 1.69, 2.2 µm ± 1.61), which were statistically significant compared with the G1 and G2 groups (3.9 µm ± 1.5 µm; 1.0 µm ± 0.18; 3.7 µm ± 1.45; and 0.9 µm ± 0.12) (p <0.05); only the step in the G4 group (4.9 µm ± 1.8 µm) was similar to that of the G3 group (p >0.05). Morphological analysis showed greater structural loss in the G3 and G4 groups. CONCLUSIONS: Bile and pancreatin, in combination with hydrochloric acid, may promote a greater loss of structure, increased surface roughness and loss of enamel prismatic anatomy.


Asunto(s)
Reflujo Duodenogástrico , Erosión de los Dientes , Animales , Bovinos , Esmalte Dental , Humanos
11.
J Appl Oral Sci ; 28: e20200182, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32813839

RESUMEN

The increased consumption of citrus sweets can contribute to the development of erosive tooth wear (ETW). Objective This in vitro study evaluated the erosive potential of citrus sweets on bovine enamel samples regarding the quantification of wear. Methodology Ninety bovine crowns were prepared and samples were randomly distributed into 6 groups (n=15): 0.1% citric acid solution (pH 2.5); Coca-Cola ® Soft Drink (pH 2.6); Fini ® Diet (lactic and citric acid, pH 3.3); Fini ® Jelly Kisses (lactic and citric acid, pH 3.5); Fini ® Fruit Salad Bubblegum (maleic acid, pH 2.6); Fini ® Regaliz Acid Tubes (maleic and citric acid, pH 3.1). Sweets were dissolved in the proportion of 40 g/250 mL of deionized water. Enamel samples were submitted to erosive challenges for 7 days (4 daily acid immersion cycles for 90 s each). Enamel wear was measured using contact profilometry (µm), and data (median values [interquartile range]) were submitted to Kruskal-Wallis/Dunn's test (p<0.0001). Results All citrus sweets tested present a high erosive potential, Fini Diet ® (2.4 [1.2]) and Fini Regaliz Tubs ® (2.2 [0.5]) show the highest erosive potential, similar to 0.1% citric acid (2.3 [0.7]); Fini Regaliz Tubs ® is more erosive than Coca-Cola ® (1.4 [0.9]). Conclusion The evaluated citrus sweets have great erosive potential and play a key role in the development of ETW.


Asunto(s)
Citrus , Erosión de los Dientes , Desgaste de los Dientes , Animales , Bebidas Gaseosas , Bovinos , Esmalte Dental , Concentración de Iones de Hidrógeno
12.
Pediatr Dent ; 42(4): 300-307, 2020 Jul 15.
Artículo en Inglés | MEDLINE | ID: mdl-32847670

RESUMEN

Purpose: To evaluate the cumulative incidence and progression of erosive tooth wear (ETW) and identify risk factors over 18 months in a cohort of 11- to 14-year-old schoolchildren in Mexico. Methods: The study was conducted in public schools located in northern Mexico City. Permanent teeth of 424 schoolchildren were examined using the basic erosive wear examination. The possible risk factors were included in the logistic models: the consumption of acidic food and beverages; habits related to the consumption of beverages; medication; gastroesophageal reflux; frequent vomiting; and characteristics of the saliva. Results: The prevalence of ETW was 62.5 percent (265 out of 424). The cumulative incidence was 35.2 percent (56 out of 159) and the progression was 72.8 percent (193 out of 265). The consumption of acidic beverages increased the relative risk (RR) of both the cumulative incidence (RR equals 1.09; 95 percent confidence interval [95% CI] 1.02 to 1.18; P=0.005) and the progression (RR equals 1.16; 95% CI 1.01 to 1.34; P=0.003). Conclusions: This population has a high risk of the development and progression of ETW, found in approximately one-third and approximately two-thirds of the schoolchildren, respectively. The most important risk factor was the consumption of acidic beverages.


Asunto(s)
Erosión de los Dientes , Desgaste de los Dientes , Adolescente , Niño , Humanos , Incidencia , México , Prevalencia , Factores de Riesgo
13.
J Appl Oral Sci ; 28: e20200131, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32725049

RESUMEN

Objective There is increasingly common the consumption more times a day of foods and acidic drinks in the diet of the population. The present study aimed to evaluate and compare the effects of a calcium mesoporous silica nanoparticle single application of other calcium and/or fluoride products in reducing the progression of dental erosion. Methodology Half of the eroded area was covered of 60 blocks of enamel, after which the block was submitted to the following treatments: (Ca2+-MSN), casein phosphopeptide-amorphous calcium phosphate (CPP-ACP); CPP-ACP/F-(900 ppm F-); titanium tetrafluoride (TiF4 1%) (positive control); sodium fluoride (NaF 1.36%) (positive control); and Milli-Q® water (negative control) before being submitted to a second erosive challenge. A surface analysis was performed via a three-dimensional (3D) noncontact optical profilometry to assess the volumetric roughness (Sa) and tooth structure loss (TSL) and and through scanning electron microscopy (MEV). An analysis of variance (ANOVA) and Tukey's test were performed. Results Regarding Sa, all experimental groups exhibited less roughness than the control (p<0.05). The TSL analysis revealed that the Ca2+-MSN and NaF groups were similar (p>0.05) and more effective in minimizing tooth loss compared with the other groups (p<0.05). Conclusions The Ca2+-MSN and NaF treatments were superior compared with the others and the negative control.


Asunto(s)
Nanopartículas , Erosión de los Dientes , Remineralización Dental , Calcio , Caseínas , Fluoruros , Humanos , Dióxido de Silicio , Fluoruro de Sodio
14.
Oral Health Prev Dent ; 18(1): 619-624, 2020 Jun 08.
Artículo en Inglés | MEDLINE | ID: mdl-32700515

RESUMEN

PURPOSE: The in-situ efficacy of an experimental stannous (Sn)-containing sodium fluoride (NaF) dentifrice against erosion and erosive tooth wear was compared with a conventional NaF dentifrice. MATERIALS AND METHODS: This was a randomised, controlled, double-blind, parallel-group clinical trial. Mandibular appliances containing four enamel specimens (2 per side [L/R] of the appliance) were worn by 60 generally healthy adult subjects. Subjects were randomised to treatment based on age and gender. Treatments included a Sn-containing NaF or conventional NaF dentifrice. Conditions of erosion (dentifrice slurry treatment) and erosion/tooth wear (dentifrice slurry plus brushing) were compared. Dentifrices were used twice per day for 30 s of lingual brushing, followed by 90 s of slurry exposure. In addition, the two specimens on the left side of the mouth were brushed for 5 s each, using a power toothbrush. All specimens were exposed to four daily erosive challenges with commercial orange juice (pH 3.6). Tooth wear was measured as enamel loss using non-contact profilometry on day 10. RESULTS: At the day 10 visit, the adjusted mean (SE) enamel loss for specimens receiving slurry (erosion) treatment was 4.7 µm (0.61) [Sn-containing NaF] and 8.73 µm (1.12) [NaF control], with results demonstrating a statistically significant benefit for the Sn-containing dentifrice (46.2% benefit; p = 0.009). For specimens exposed to erosion/tooth wear conditions, enamel loss = 6.68 µm (1.29) (Sn-containing NaF) and 10.99 µm (1.29) (NaF group), with results statistically significant (p = 0.048; 39.2% better, favouring the Sn-containing dentifrice). When data were combined, enamel loss (SE) for all specimens subjected to erosion + erosion/tooth wear was 5.61 µm (0.77) (Sn-containing NaF]) and 9.9 µm (1.3) (NaF group). The difference again was statistically significant, favouring the Sn-containing group (p = 0.022; 43.4% better). CONCLUSIONS: The Sn-containing dentifrice demonstrated significantly better protection than did NaF under erosive and erosive/tooth wear conditions.


Asunto(s)
Dentífricos , Erosión de los Dientes , Desgaste de los Dientes , Adulto , Fluoruros , Humanos , Fluoruro de Sodio , Fluoruros de Estaño
15.
Oral Health Prev Dent ; 18(1): 529-536, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32515424

RESUMEN

PURPOSE: To evaluate the effect of pre-treatment air abrasion of surfaces using bioactive glass 45S5 on the progression of erosion in bovine enamel induced by a common soft drink. MATERIALS AND METHODS: Twelve intact bovine incisors were selected and 24 enamel samples were prepared and randomly assigned to two groups (n = 12): 1. control group, no anti-erosive treatment; 2. experimental group: samples were air abraded with bioglass 45S5 before the erosive challenge. The enamel samples were submitted to erosive cycling using a common soft drink. Enamel surface loss was evaluated using optical profilometry; surface microhardness and roughness changes were determined using Vickers method and Vertical Scanning Interferometry, respectively. In addition, SEM observations and EDS analysis were performed to detect any alterations in surface morphology and mineral content. The data were statistically analysed using one-way ANOVA and Tukey's post-hoc test at a significance level of α = 0.05. RESULTS: The experimental group exhibited less (18.7%) surface loss than did the control group (p < 0.05), while also presenting a statistically significantly smaller decrease in surface microhardness compared to the control group after erosive cycling (p < 0.05). However, neither group showed a statistically significant change in surface roughness (p > 0.05). After the treatments, changes in surface morphology and mineral content of enamel were observed. CONCLUSIONS: Surface pre-treatment using air abrasion bioglass 45S5 may help prevent enamel erosion induced by excessive consumption of soft drinks. Further clinical trials are needed to confirm the effectiveness of this method and its clinical significance.


Asunto(s)
Erosión de los Dientes , Abrasión Dental por Aire , Animales , Bovinos , Cerámica , Esmalte Dental , Vidrio , Propiedades de Superficie
16.
Braz Dent J ; 31(2): 164-170, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32556016

RESUMEN

The aim of this study was to compare the effects of a single application of a new calcium mesoporous silica nanoparticle (Ca2+-MSN) versus other calcium and/or fluoride products against dental erosion. Enamel blocks were half-covered and assigned to six groups (n = 10): Ca2+-MSNs; casein phosphopeptide-amorphous calcium phosphate mousse (CPP-ACP); CPP-ACP/F- (900 ppm F-); titanium tetrafluoride (TiF4 1%); sodium fluoride (NaF 1.36%); and Milli-Q® water (negative control). A single application for each product was completed on the exposed areas of the blocks and were submitted to an erosive challenge. Differences in volumetric roughness (Sa), and tooth structure loss (TSL) by use of three-dimensional noncontact optical profilometry were evaluate. Scanning electron microscopy (SEM) was performed. Analysis of variance and Tukey's test for Sa and the Kruskal-Wallis and Mann-Whitney U tests (p< 0.05) for TSL, respectively. Results: When evaluating Sa, all products presented differences in roughness when compared with the control group (p< 0.05) but not with each other (p > 0.05). However, when analyzing the TSL, it was observed that Ca2+-MSNs, TiF4, and NaF were more effective in preventing dental erosion versus CPP-ACP, CPP-ACP/F-, and Milli-Q® water (p< 0.05). In the SEM images, the negative control presented the worst loss of dental structure, with more porous enamel. Ca2+-MSNs were as effective as TiF4 and NaF to reduce the tooth structure loss.


Asunto(s)
Fluoruros , Erosión de los Dientes , Calcio , Caseínas , Esmalte Dental , Humanos , Dióxido de Silicio , Fluoruro de Sodio , Remineralización Dental
17.
Acta Odontol Scand ; 78(8): 590-598, 2020 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-32406299

RESUMEN

OBJECTIVES: The objectives of the present study were to assess the consumption of acidic beverages, knowledge and concern about preventing dental erosive wear, and to examine potential associations between these variables, in a sample of high school students. MATERIALS AND METHODS: A survey measuring acidic beverage consumption, knowledge and concern about erosive tooth wear was conducted at 13 high schools in Rogaland county, Norway. RESULTS: Of the 850 students who completed the questionnaire, 26% reported that they drink acidic beverages every day. There were significant gender differences for the consumption of acidic drinks. The survey also demonstrated that a high proportion of students lacks basic knowledge of what erosive tooth wear is, and that this lack of knowledge is associated with a more frequent intake of acidic beverages. However, students who responded that they are concerned about preventing dental erosive wear reported that they drink soft drinks and energy drinks less frequently than students who are not concerned about this. CONCLUSIONS: Results from this study support assumptions about a lack of knowledge about dental erosive wear in youth, and that this lack of knowledge is associated with a more frequent intake of acidic drinks.


Asunto(s)
Erosión de los Dientes , Adolescente , Bebidas , Bebidas Gaseosas/efectos adversos , Conducta Alimentaria , Humanos , Noruega/epidemiología , Estudiantes , Erosión de los Dientes/inducido químicamente , Erosión de los Dientes/epidemiología
18.
Artículo en Inglés | MEDLINE | ID: mdl-32357436

RESUMEN

Tooth erosion is becoming an increasingly common dental problem among teenagers. The study aimed to determine risk factors for erosive lesions in young sports professionals. Participants were 155 students-102 physically active and 53 controls. The method included dental examination (including Basic Erosive Wear Examination) and a questionnaire concerning sports activity, dietary and hygienic habits. The sporting activity significantly correlated with erosive lesions (RSpearman = 0.344). The regression model incorporating the kind of sports activity, special diet and (non-)drinking water was statistically significant (p = 0.922 for the Hosmer-Lemeshow test) and strong enough to predict erosive lesions in young athletes (AUC = 0.758). Water sports professionals were almost 14 times more likely to suffer from erosive lesions than control students. Drinking water as the main beverage decreased the odds by about 70%. The graphical interpretation of multidimensional correspondence analysis confirms the predictive value of these factors. The kind of sports activity adjusted by the main beverage and a special diet was the best variable to predict erosive lesions among teenagers. Early proper diagnosis with defined risk factors leads to better prevention and successful treatment.


Asunto(s)
Ejercicio Físico , Erosión de los Dientes , Desgaste de los Dientes , Adolescente , Bebidas , Femenino , Humanos , Masculino , Factores de Riesgo
19.
J Dent ; 97: 103342, 2020 06.
Artículo en Inglés | MEDLINE | ID: mdl-32360512

RESUMEN

OBJECTIVES: Recent software advancements have facilitated quantification of erosive tooth wear progression using intraoral scans. This paper investigated if wear on commonly affected surfaces (central incisors and first molars) was representative of wear on the full arch. METHODS: Bimaxillary digital intraoral scans (True Definition, 3 M, USA) of patients (n = 30) from the monitoring arm of the Radboud Tooth Wear Project, were taken at baseline and at 3 years (+/-10months). The occlusal/incisal surface of each tooth (excluding 3rd molars) was analysed for volume change and volume change per mm of analysed surface area in WearCompare (www.leedsdigitaldentistry.com/Wearcompare) following previously published protocols. Data were normal, descriptives and multi-level linear regression analysis was performed in Stata v15.1 taking patient level and surface type data into account. RESULTS: Data from 556 surfaces in 29 patients were included in analysis. Per patient, mean volume loss (95 % CI) was -0.91mm3(-1.28,-0.53) on all surfaces, -1.85mm3(-2.83,-0.86) on index surfaces, -2.53mm3(-3.91,-1.15) on molar surfaces and -0.83 mm3(-1.34,-0.31) on upper central incisal surfaces. Statistical differences were observed between analysing all surfaces and index teeth(p = 0.002) in addition to molar surfaces(p < 0.0001). Mean volume loss per mm2 of surface analysed was -0.024 mm3 (-0.031,-0.017), -0.028mm3 (-0.041,-0.014), -0.030mm3 (-0.046,-0.013) and -0.025mm3 (-0.041,-0.010) for all surfaces, index surfaces, first molar surfaces and central incisor surfaces respectively with no statistical differences between groups. CONCLUSIONS: Wear on upper central incisors was not statistically different to full arch wear analysis. If the surface area is standardised, wear on both index surfaces are statistically similar to wear on the full arch. CLINICAL SIGNIFICANCE: These results suggest that analysing rates of wear on index teeth can be a resource-saving substitute for analysing rates of wear on the entire dentition, provided the surface area is standardised. If whole surfaces are analysed, the molar surfaces will show greater rates of wear.


Asunto(s)
Atrición Dental , Erosión de los Dientes , Desgaste de los Dientes , Dentición , Humanos , Incisivo , Diente Molar/diagnóstico por imagen
20.
Lasers Med Sci ; 35(7): 1607-1620, 2020 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-32472426

RESUMEN

The aim of the present study was to evaluate the effects of different remineralization agents associated with erbium, chromium:yttrium-scandium-gallium-garnet (Er,Cr:YSGG) (0.5 W power, 20 Hz frequency, 60% water, 40% air, 25 mJ pulse energy, 8.84 J/cm2 fluence, 60 µs pulse duration, 600 µm tip diameter, and an approximate 1-1.5 mm distance to the target) laser irradiation on erosion induced by the consumption of carbonated drinks in human primary enamel. There were 8 groups and 10 primary teeth in each g0roup. The distribution was as follows: group 1, casein phosphopeptide-amorphous calcium phosphate with fluoride (CPP-ACPF); group 2, Er,Cr:YSGG laser+CPP-ACPF; group 3, fluor varnish; group 4, Er,Cr:YSGG Laser+fluoride varnish; group 5, ROCS® medical mineral gel; group 6, Er,Cr:YSGG laser + ROCS® medical mineral gel; group 7, Er,Cr:YSGG laser; and group 8, artificial saliva. The samples in the groups were submerged in artificial saliva and acid twice a day for 6 s at 6-h intervals and were then exposed to an erosion cycle 15 times. In the groups in which the Er,Cr:YSGG laser was applied in combination with the remineralization agents, the laser application was made first, and then the remineralization agents were applied for 4 min in each group. The Friedman and Wilcoxon signed-rank tests and the Bonferroni correction were used in statistical analyses, and the significance level was taken as p < 0.05. According to the results, all agents had a statistically significant difference (groups 1, 2, 3, 4, and 6: p = 0.005, p < 0.017; groups 5 and 7: p = 0.007, p < 0.017) between BL-RM periods. However, all agents had a statistically significant remineralization effect on primary teeth enamel (groups 1, 2, 3, 6, and 7: p = 0.005, p < 0.017; group 4: p = 0.011, p < 0.017) except that group 5 (p = 0.074, p < 0.017) between DM-RM periods. The coadministration of an agent with the laser did not make any difference at a statistical level (p = 0.804, p > 0.05). The results were supported by scanning electron microscopy (SEM) and X-ray diffraction (XRD) analysis. As a result of this study, CPP-ACPF had a notable impact in terms of the remineralization effect on eroded enamel, and the Er,Cr:YSGG laser alone may be an alternative method, which may be related to the modified hydroxyapatite structure, 38.5% H0.56Ca4.56O13P3Y0.44, that was determined in XRD analysis.


Asunto(s)
Esmalte Dental/efectos de la radiación , Láseres de Estado Sólido/uso terapéutico , Erosión de los Dientes/cirugía , Remineralización Dental , Diente Primario/efectos de la radiación , Esmalte Dental/ultraestructura , Dureza , Humanos , Difracción de Rayos X
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