| Full text | |
| Author(s): |
Faraoni, Juliana Jendiroba
[1]
;
de Andrade, Julia Barone
[1]
;
Machado de Matos, Lais Lopes
[1]
;
Palma-Dibb, Regina Guenka
[1]
Total Authors: 4
|
| Affiliation: | [1] Univ Sao Paulo, Dept Restorat Dent, Sch Dent Ribeirao Preto, Ribeirao Preto, SP - Brazil
Total Affiliations: 1
|
| Document type: | Journal article |
| Source: | ORAL HEALTH & PREVENTIVE DENTISTRY; v. 18, n. 4, p. 701-706, JUL-AUG 2020. |
| Web of Science Citations: | 0 |
| Abstract | |
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 degrees 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 mu m +/- 1.69, 2.2 mu m +/- 1.61), which were statistically significant compared with the 01 and G2 groups (3.9 mu m +/- 1.5 mu m; 1.0 mu m +/- 0.18; 3.7 mu m +/- 1.45; and 0.9 mu m +/- 0.12) (p <0.05); only the step in the G4 group (4.9 mu m +/- 1.8 mu m) 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. (AU) | |
| FAPESP's process: | 13/01413-7 - Influence of duodenogastric reflux on tooth enamel |
| Grantee: | Julia Barone de Andrade |
| Support Opportunities: | Scholarships in Brazil - Master |
| FAPESP's process: | 11/12901-7 - In vitro and in situ analysis of dental erosion and prevention methods in patients with gastroesophageal reflux disease |
| Grantee: | Regina Guenka Palma-Dibb |
| Support Opportunities: | Regular Research Grants |