Efficacy of Ozone Pretreatment on Fissure Sealant Adaptation and Retention

Author(s):  
Tugba Bezgin ◽  
Firdevs Tulga Oz ◽  
Nurhan Ozalp
2010 ◽  
Vol 35 (2) ◽  
pp. 187-190 ◽  
Author(s):  
S Burcak Cehreli ◽  
Zeynep Yalcinkaya ◽  
Gunseli Guven-Polat ◽  
Zafer Cavit Çehreli

Objective: This study investigated the effect of ozone pretreatment on the microleakage and marginal integrity of pit and fissure sealants placed with or without a self-etch 6th generation adhesive. Study Design: Freshly-extracted, human third molars were randomly assigned into two main groups (n=48):Group A: Fissures were pretreated with ozone; Group B: Fissures were left untreated. The teeth were further randomly divided into two subgroups (n=24/each) so that half of teeth were sealed with a conventional fissure sealant (Fissurit F, Voco, Germany), while the remaining half received the same sealant bonded with a self-etch adhesive (Clearfil Protect Bond, Kuraray, Japan). Following thermal cycling (1000X), the specimens were subjected to dye penetration within 0.5% basic fuchsin for 24h. The extent of dye penetration was measured by image analysis. Kruskal Wallis and Mann-Whitney U tests were used for statistical analysis of the data (p=0.05). Two randomly-selected sections from each group were observed under SEM.Results: In all groups, ozone pretreatment significantly reduced the extent of microleakage (p<0.001). SEM investigation demonstrated better adaptation of the sealants in ozone-pretreated groups. Clearfil Protect Bond did not improve the marginal seal of Fissurit F (p>0.05). Conclusion: Ozone pretreatment favorably affected the marginal sealing ability of the tested fissure sealants.


2021 ◽  
Vol 21 (1) ◽  
Author(s):  
S. Moradi ◽  
S. Sabbagh ◽  
L. Timms ◽  
V. Ravaghi

Abstract Background Dental caries is a significant public health problem in Iran. Teaching  minimally invasive interventions in paediatric dentistry may facilitate the provision of treatment for untreated dental caries in children. We evaluated the teaching of such interventions in both undergraduate dental curriculum and Paediatric Dentistry Specialty Training Programme (PDSTP) in Iran. Methods This was a cross-sectional questionnaire-based survey. Participants in this study were the directors of 40 undergraduate programmes and 15 PDSTPs in all Iranian dental schools (response rate = 100%). Descriptive statistics were reported. Results The most commonly taught methods were preventive fissure sealant and preventive resin restoration (PRR), which were taught ‘both didactically and clinically’ in all undergraduate dental programmes. The least commonly taught methods were silver diamine fluoride (SDF), the Hall technique and resin infiltration, which were taught ‘both didactically and clinically’ in less than 5% of dental schools. The same three methods were the least commonly approaches taught in PDSTP, further, they were less often perceived to be ‘essential’. Conclusions There was a notable variation in the teaching of the management of dental caries in Iran’s dental education. Some minimally invasive approaches including SDF, the Hall technique and resin infiltration are not being commonly taught in Iranian dental schools despite the evidence base for these techniques.


Children ◽  
2021 ◽  
Vol 8 (6) ◽  
pp. 444
Author(s):  
Rahif E. Mattar ◽  
Ayman M. Sulimany ◽  
Saad S. Binsaleh ◽  
Ibrahim M. Al-Majed

This randomized clinical trial aimed to evaluate the patient’s preference and chair time needed during pit and fissure sealant placement under three isolation techniques (Isolite system, rubber dam isolation, and cotton roll isolation). Participants, aged 6–15 years and requiring four sealants on the first or second permanent molars, attending the pediatric dental clinics at King Saud University in Saudi Arabia were enrolled according to the inclusion criteria. Each participant received sealants on three random first or second permanent molars using three isolation techniques. The time required for sealant placement was recorded for each technique. Following sealant placement, an interview-based questionnaire was administered to the participants to evaluate their preference regarding the isolation techniques. Forty-eight children (23 male and 25 female) with a mean age of 8.58 ± 1.93 years participated in this study. The mean chair times were 248.14, 255.89, and 243.29 s for the Isolite system, rubber dam isolation, and cotton roll isolation, respectively. Approximately 79% of participants considered cotton roll isolation to be the most comfortable, whereas approximately 71% were significantly less likely to use rubber dam isolation again. In conclusion, there were no significant differences in sealant placement time among the three isolation techniques. However, cotton roll isolation was the technique that was most preferred by the participants.


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