Dental caries
Conditions
Interventions
The study evaluated the method used for removal of caries lesions. The intervention was performed using contra-angle. The study intervention was performed using Er: YAG Laser (250mJ / 4 Hz - experimen
Procedure/surgery
Other
E02.186.500
Sponsors
Faculdade de Odontologia de Ribeirão Preto, Universidade de São Paulo
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
Eligibility
Age
7 Years to 10 Years
Inclusion criteria
Inclusion criteria: The inclusion criteria of the children were: two active caries lesions in dentin; primary molars with pulp vitality; primary molars with absence of sealants; absence of amalgam restorations; absence of glass ionomer cement; absence of composite resin restorations.
Exclusion criteria
Exclusion criteria: First molars without pulp vitality; presence of sealants; presence of amalgam restorations; presence of glass ionomer cement; presence of composite resin restorations.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The presentation of the expected outcome was based on the null hypothesis where: 1) The child's salivary cortisol level would not be influenced by the selective necrotic dentin removal method; 2) The method used for caries removal would not influence the longitudinal clinical performance of class II composite resin restorations in deciduous molars.; We expected salivary cortisol levels increase for the experimental group, through immunoenzymatic analysis. | — |
Secondary
| Measure | Time frame |
|---|---|
| Salivary cortisol levels were higher during the selective removal of caries, regardless of the method used. The salivary cortisol levels obtained during caries removal using the Er: YAG laser were similar to those obtained by the bur preparation method(low speed turbine). The statistical data obtained by salivary cortisol levels were performed by Shapiro-Wilk test, showing non-normal sample distribution. Sequentially, Friedman test and Wilcoxon post-hoc tests were conducted at a significance level of 5%. Clinical analysis of class II restorations was performed using the modified USPHS criteria. There was no evidence of difference for retention, marginal adaptation, discoloration and secondary caries for restorations performed by the two methods. In the 12-month analysis, a bur-prepared restoration was lost. The SEM analysis exhibited the marginal adaptation through the replicate analysis of the restorations. The qualitative analysis revealed no difference between baseline and 6 months. After 12 months, the teeth irradiated with laser showed 10% of gaps in the total extension of the restoration. For those prepared with burs, 20% of the gaps were found at the cavo-superficial angle. For the modified USPHS criteria, descriptive statistics and 95% confidence intervals were built to proportions of all groups and experimental periods. For the SEM analysis, marginal gaps found on the restorations were expressed as percentage. Three calibrated examiners (kappa score > 0.80) were blinded from information regarding the experimental groups. Statistical analyses were performed using the SPSS software for Windows, version 19.0 (SPSS Inc., Chicago, IL, USA). | — |
Countries
Brazil
Contacts
Public ContactRodrigo Valério
Faculdade de Odontologia de Ribeirão Preto, Universidade de São Paulo
Outcome results
None listed