| 1. |
- Angulo, M., et al.
(författare)
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The association between the prevalence of dental fluorosis and the socio-economic status and area of residence of 12-year-old students in Uruguay
- 2020
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Ingår i: Acta Odontologica Scandinavica. - : Informa UK Limited. - 0001-6357 .- 1502-3850. ; 78:1, s. 26-30
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Tidskriftsartikel (refereegranskat)abstract
- Objective: This study investigates the association between the prevalence and severity of dental fluorosis, the socio-economic status (SES) and area of residence among 12-year-old schoolchildren in Uruguay. Material and methods: The study was descriptive, cross-sectional, explanatory and observational. Subjects considered eligible were born in 1999 and had their parents' or guardian's prior consent. A questionnaire was used to identify SES according to Centro de Investigaciones Economicas Institute on four levels. Dental fluorosis was determined using the Thylstrup-Fejerskov (TF) index. Results: Of the 1544 students examined, 45.0% showed dental fluorosis. A TF index 1-2 was recorded in 29.3% of the subjects, TF 3 in 20.9%, TF 4 in 6.7% and TF 5-9 in 2.1%. In area 1 (the capital Montevideo city), 84.8% of the subjects had dental fluorosis, a value that was significantly higher than in the inland region (area 2, 24.4%) and border departments (area 3, 22.5%) (x(2) = 27.92, p < .0001). Students from families with a low socio-economic level showed less prevalence of dental fluorosis than those with a high level (x(2) = 14.58, p = .002). Conclusion: Significant differences exist in the prevalence of dental fluorosis in relation to place of residence and socio-economic level.
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| 2. |
- Basili, C. P., et al.
(författare)
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Preventive and Therapeutic Proximal Sealing : A 3.5-Year Randomized Controlled Clinical Trial Follow-Up
- 2017
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Ingår i: Caries Research. - : S. Karger AG. - 0008-6568 .- 1421-976X. ; 51:4, s. 387-393
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Tidskriftsartikel (refereegranskat)abstract
- Objective: The aim of this split-mouth, randomized controlled clinical trial was to evaluate the efficacy of proximal sealing for avoiding the development of new caries lesions or arresting incipient caries lesions on the mesial surface of first permanent molars (6m) abutting lesions on the distal surface of second primary molars (05d) in children at high caries risk. Methods: A total of 61 children 8-10 years old were selected based on the caries status of the proximal sites of 05d and 6m. Children with caries on 05d and caries-free 6m were placed in the preventive sealing group and children with caries on both 05d and 6m in the therapeutic group. The children in each group had one 6m surface pair and in each pair one 6m surface was randomly allocated to receive a preventive or therapeutic sealing. Using a split-mouth design, the other 6m surface in the pair served as control. Results: After 3.5 years, standardized follow-up radiographs were obtained for the 45 children who remained. In the preventive sealing group, 4 out of 30 (13.3%) sealed and 16 out of 30 (53.3%) unsealed sound 6m surfaces had developed new caries lesions (p = 0.004, McNemar test). In the therapeutic sealing group, the progression of the carious lesions on 6m was observed in 3 out of 15 sealed (20.0%) and 8 out of 15 (53.3%) unsealed caries control surfaces (p = 0.06). Conclusions: Preventive sealing on sound 6m surfaces abutting 05d lesions in children at high caries risk efficaciously prevents the development of caries lesions. Therapeutically sealing active non-cavitated caries lesions reduces the progression. (C) 2017 S. Karger AG, Basel
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| 3. |
- Emilson, Claes-Göran, et al.
(författare)
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A 5-year clinical follow-up of the efficacy of proximal sealing in high caries risk children
- 2023
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Ingår i: Journal of Dentistry. - : Elsevier BV. - 0300-5712. ; 128
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Tidskriftsartikel (refereegranskat)abstract
- Objective: The aim of the present study was to evaluate, after 5 years, the efficacy of proximal microinvasive sealing of permanent teeth on the risk for caries lesion development. Methods: Children aged 8 to 10 y at baseline, at high caries risk, were studied. In the preventive (P) group the children had caries lesions on the distal surface of primary second molars (05d) but sound mesial surfaces of the approximating permanent first molars (6m). In the therapeutic (T) group the children had initial caries lesions on 6m that abutted lesions on 05d. Each child in the two groups had one 05d/6m pair. Using a split-mouth design, one 6m surface in each pair was randomly assigned to receive sealing while the other pair served as an unsealed control. Results: Of the 61 children at baseline 42 could be blindly examined clinically and radiographically both at baseline and after 5 years. In the P group, 8 of 28 (28.6%) sealed and 15 of 28 (53.6 %) unsealed sound 6m surfaces had developed caries lesions (p = 0.04). In the T group, the progression of the carious lesions on 6m was observed in 4 of 14 sealed (28.6%) and 8 of 14 (57.1%) unsealed caries control surfaces (p = 0.29). Pooling the data from the two groups, the difference between sealed and non-sealed surfaces was significant (p = 0.013). Conclusion: Both preventive and therapeutic sealant to 6m adjacent to a lesion on 05d has effectiveness in caries reduction in high caries risk children Clinical Significance: The beneficial effect of sealing is observed for at least 5 years after a single sealant treatment.
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| 4. |
- Gisselsson, Hans, et al.
(författare)
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Approximal caries increment in two cohorts of schoolchildren after discontinuation of a professional flossing program with chlorhexidine gel.
- 2005
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Ingår i: Caries research. - : S. Karger AG. - 0008-6568 .- 1421-976X. ; 39:5, s. 350-6
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Tidskriftsartikel (refereegranskat)abstract
- We have in two earlier studies evaluated the effect of professional flossing with chlorhexidine (CHX) gel treatment, in 4- to 7-year-old preschool children and in 12- to 15-year-old teenagers. The mean caries reduction after 3 years was around 40% compared to placebo gel or no gel treatment. The aim of the present investigation was to follow up these two clinical studies. The preschool children were followed up to the age of 16 years and the teenager group to the age of 19. Of the total number of original children, 71 and 80% were available at the age of 16 and 19 years, respectively. At the 9-year follow-up, when the children were 16 years old, the former CHX group had still significantly lower mean DFS than the control group (p < 0.05). The differences in caries increment occurred between 7 and 12 years of age, whereas the number of new caries lesions during the next 4 years were almost the same in the three groups. At the 4-year follow-up, when the teenagers were 19 years old, DFS was 6.9 in the former CHX group compared to 10.4 in the control group (p < 0.05). The main conclusion of these two follow-up studies after 9 and 4 years, respectively, is that caries reductions obtained at the end of professional flossing with a 1% CHX gel were maintained.
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| 5. |
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| 6. |
- Gomez, Santiago S, et al.
(författare)
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A 2-year clinical evaluation of sealed noncavitated approximal posterior carious lesions in adolescents.
- 2005
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Ingår i: Clinical oral investigations. - : Springer Science and Business Media LLC. - 1432-6981 .- 1436-3771. ; 9:4, s. 239-43
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Tidskriftsartikel (refereegranskat)abstract
- The objective was to evaluate the clinical performance of a therapeutic sealant to arrest the progression of noncavitated approximal posterior carious lesions. The study population comprised 50 adolescents in whom bitewing radiographs had been taken for diagnosis of caries. Approximal noncavitated lesions in premolars and molars (4d-7m) were selected. One group (n=17) had a sealant placed after tooth separation on all enamel lesions. A second group (n=7) received sealant and fluoride varnish in a split-mouth design. A control group (n=26) received a standard fluoride varnish treatment without tooth separation. Follow-up radiographs were taken after 2 years and were analyzed together with the baseline radiographs in a blind study setting. About 93% of the sealed initial carious lesions showed no progression. The corresponding value for the fluoride varnish control group was 88%. In the split-mouth study, 92 and 88% of the surfaces with enamel caries showed no progression after sealant or fluoride varnish treatment, respectively. The difference between the two treatment procedures was not statistically significant. The incidence rate for the transition from enamel caries to dentin caries or fillings was 3.5-3.9 surfaces/100 years in the sealant groups and 5.9-6.1 surfaces/100 years in the fluoride varnish groups. The results show the potential of sealants to act as a noninvasive treatment of early approximal enamel lesions.
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| 7. |
- Gomez, S. S., et al.
(författare)
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Efficacy of sealing the mesial surfaces of first permanent molars with respect to the status of the distal surfaces of the second primary molars in children at high caries-risk
- 2014
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Ingår i: European Archives of Paediatric Dentistry. - : European Academy of Paediatric Dentistry. - 1818-6300 .- 1996-9805. ; 15:2, s. 65-73
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Tidskriftsartikel (refereegranskat)abstract
- Aim: This study aimed at evaluating the efficacy of sealants at preventing caries development or arresting the progression of non-cavitated mesial carious lesions in first permanent molars (6m) with respect to the status of the distal surfaces of the second primary molars (05d). Method: The study population comprised 121, 8- to 10-year-old schoolchildren in a high-caries community in Valparaiso, Chile. They were examined clinically and radiographically and screened for caries-related risk factors using the risk-assessment software program Cariogram. The children were divided into three groups: Group A, with no caries lesions on adjacent surfaces of 05d-6m, served as a control group. Group B, with caries on 05d, received a preventive sealant on the caries-free 6m after temporary separation, and Group C, with carious 05d, received a therapeutic sealant on a 6m with initial lesions. Standardised follow-up radiographs were taken in 110 children after 12-14 months. Results: In group A, with no treatment, the mean percentage of sound surfaces that developed caries lesions was 3.8 %. In group B, the mean percentage of sound 6m surfaces that developed caries lesions was 4.9 % for sealed and 22.0 % for unsealed surfaces (p < 0.05). In group C, the progression of therapeutically sealed carious lesions on 6m was 3.0 % compared with 41.2 % for unsealed carious control surfaces (p < 0.05). Conclusions: These results suggest that sealing sound surfaces and non-cavitated caries in the proximal mesial surfaces of permanent molar teeth effectively prevents or reduces the progression of caries adjacent to lesions on the distal surfaces of the second primary molars. © 2013 European Academy of Paediatric Dentistry.
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| 8. |
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| 9. |
- Gomez, Santiago S., et al.
(författare)
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Therapeutic seal of approximal incipient non-cavitated carious lesions. Technique and case reports.
- 2007
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Ingår i: Quintessence Int. ; 38
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Tidskriftsartikel (refereegranskat)abstract
- Sealing of incipient carious lesions in occlusal surfaces has been shown to arrest the progression of the lesions. In this report, we describe for approximal surfaces with noncavitated incipient lesions the clinical procedures for sealant application illustrating this minimally invasive method with 3 clinical cases and scanning electron microscopic images.
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| 10. |
- Gomez, Santiago, et al.
(författare)
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SEM analysis of sealant penetration in posterior approximal enamel carious lesions in vivo.
- 2008
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Ingår i: The journal of adhesive dentistry. - 1461-5185. ; 10:2, s. 151-6
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Tidskriftsartikel (refereegranskat)abstract
- PURPOSE: To study the microstructure of sealant penetration in the enamel of in vivo sealed approximal noncavitated incipient caries lesions with and without a preceding bonding step. MATERIALS AND METHODS: A total of 26 proximal noncavitated caries lesions were sealed in vivo, using a sealant in 13 premolars with orthodontic indication of extraction. Each tooth was randomly assigned to mesial or distal surface application of a sealant in the lesion area and in surrounding sound enamel, with or without a bonding system. Four groups were analyzed: a nonbonding group in the lesion area (NBL); a nonbonding group in sound enamel (NBS); a bonding group in the lesion area (BL) and a bonding group in sound enamel (BS). The premolars were extracted after two weeks. All sealed areas were cut and demineralized with 37% hydrochloric acid for 24 h. For each group, the resin tags were observed and measured by scanning electron microscopy. RESULTS: The lesion areas showed a very irregular resin network with twisted and curved tags in contrast to the sound enamel where a regular etching pattern was observed. The length of resin tags in microns for each group (mean +/-SD) was: NBG-L = 4.19 +/- 1.59; NBG-S = 5.49 +/- 2.49; BG-L = 4.57 +/- 1.99; and BG-S = 4.21 +/- 1.87. The differences between the groups were not statistically significant (p = 0.34). Conclusion: The use of a bonding system prior to the application of a pit and fissure sealant on both lesion and sound enamel areas does not increase the resin penetration length under non-contaminated conditions.
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