RESUMEN
Statement of the Problem: Fissure sealant therapy is among the most effective methods of preventing dental caries. However, it is lengthy and isolation of the teeth is difficult in this procedure especially in young children. Using new hydrophilic fissure sealant may reduce such problems
Purpose: This study aimed to evaluate the clinical success of a hydrophilic fissure sealant on the lower permanent molar teeth in dry and wet conditions
Materials and Method: This clinical trial assessed 31 patients [mean age 8.13 +/- 1.77 years] who needed fissure sealant therapy on their first or second mandibular permanent molar. Having performed dental prophylaxis, the teeth were etched and rinsed. Then one of the two was randomly selected and sealed with smartseal and loc in isolated and dry conditions; while, the other was wetted on the etched enamel by using a saliva-contaminated micro brush, and was then sealed with the same fissure as the first tooth. Six and 12 months later, two independent observers examined the clinical success of sealant through checking the marginal integrity, marginal discoloration, and anatomical form. Data were analyzed by using SPSS software, version 16. The bivariate Chi-square and Exact Fisher tests were used to compare the clinical success of the two treatment methods
Results: There was a high interpersonal reliability between the two examiners [K= 0.713]. After 12 months, 90.3% clinical success was observed in dry conditions and 83.9% in wet conditions for smartseal and loc; however, the difference was not statistically significant [p= 0.0707]
Conclusion: According to the results of this study, it seems that using new hydrophilic fissure sealant can reduce technical sensitivities and consequently decreases the apprehensions on saliva contamination of etched enamel during treatment procedures
RESUMEN
Background: Tooth avulsion is one of the most severe dental traumas which most often occur in children. When immediate replantation is not possible, storage in a proper media may lead to a prolonged survival rate. Aloe Vera is a cactus like plant with green, tapered leaves that are filled with a transparent viscous gel. This medicinal plant has significant anti-inflammatory, antioxidant, antibacterial and antifungal effects. The purpose of this study was to assess the effectiveness of different concentrations of Aloe Vera extract compared to DMEM [cell culture medium] and egg white
Methods: The periodontal ligament [PDL] cells were cultured and certain number of cells were treated with Aloe Vera extract [in four different concentrations], egg white and culture media for 1, 3, 6, and 9 hours. Cell viability was determined by using the [3-[4, 5-dimethylthiazolyl-2]-2, 5-diphenyltetrazolium bromide] assay. Moreover, One-way ANOVA and post hoc [LSD] test were used for analyzing the study groups
Results: The results indicate that culture media and Aloe Vera extract [10, 30, and 50% concentration] were statistically similar and significantly preserved more PDL cells compared to other experimental storage media
Conclusion: Aloe Vera 10, 30, and 50% may be recommended as a suitable storage media for avulsed teeth