EVAUATION OF FLOURIDE RELEASE FROM CONVENTIONAL CHEMICAL CURE GLASS IONOMER AND RESIN MODIFIED GLASS IONOMER AS PIT AND FISSURE SEALANTS IN PERMANAT MOLARS: AN IN VITRO STUDY

2021 ◽  
Vol 67 (3) ◽  
pp. 1761-1766
Author(s):  
Reham Mohamed ◽  
Sherif Eltawil ◽  
Manal ElShiekh
Keyword(s):  
In Vitro Study ◽  
Vitro Study ◽  
Glass Ionomer ◽  
Fissure Sealants ◽  
Pit And Fissure Sealants ◽  
Resin Modified Glass Ionomer

scholarly journals Pit and fissure sealants penetration capacity and their correlation with fissure morphology

2019 ◽  
Vol 92 ◽  
pp. S50-S54
Author(s):  
Alexandrina Muntean ◽  
Meda-Romana Simu ◽  
Raluca Suhani ◽  
Anca Stefania Mesaros
Keyword(s):  
In Vitro Study ◽  
Glass Ionomer ◽  
Fissure Sealants ◽  
Depth Of Penetration ◽  
Fissure Sealant ◽  
Pit And Fissure Sealants ◽  
Group I ◽  
Occlusal Surfaces ◽  
Resin Modified Glass Ionomer

Background and aims. Pit and fissure sealant placement corresponds to an effective approach of the prevention of caries on occlusal surfaces. Fissure morphology and dental material characteristics are the key factors for sealant effectiveness. The aim of this in vitro study was to compare the penetration ability of two commercially available pit and fissure sealants. Methods. Twenty sound human premolars extracted for orthodontic purpose have been sealed according to manufacturer’s instructions as follows: Group I (n=10), light-cured unfilled resin-based sealant, Admira Seal® (Voco GmbH); Group II (n=10), resin modified glass ionomer sealant without varnish, GC Fuji Triage® (GC Corporation). The teeth have been sectioned buccal-lingually in the middle of the occlusal surface, and the sections were examined at 40x with an inverted microscope. Results. Penetration of the sealants was found to be greater in U-type fissure pattern (91.69%) followed by V-type (75.42%), IK-type (71.24%) and then in I-type (63.98%). The depth of penetration of GC Fuji Triage® (82.85%) demonstrated to be superior to Admira Seal® (76.28%). Conclusion. U fissure design was more common than other fissure patterns and showed significantly higher penetration for the two type of sealants evaluated. Resin modified glass ionomer sealant used in the present study perform comparably with the filled resin sealant.

scholarly journals Comparative evaluation of microleakage of nano-filled resin-modified glass ionomer: An in vitro study

2014 ◽  
Vol 08 (04) ◽  
pp. 450-455 ◽  
Author(s):  
Nesrin Eronat ◽  
Emir Yilmaz ◽  
Nazan Kara ◽  
Asli Topaloglu Ak
Keyword(s):  
Third Molar ◽  
In Vitro Study ◽  
High Viscosity ◽  
Vitro Study ◽  
Glass Ionomer ◽  
Class V ◽  
Dye Penetration ◽  
Resin Modified Glass Ionomer ◽  
Group B

ABSTRACT Objective: This in vitro study evaluated the microleakage of a nano-filled resin-modified glass ionomer and a high viscosity glass-ionomer restorations in class V cavities. Materials and Methods: Thirty-two class V cavities prepared on the buccal and lingual surfaces of 16 sound, third molar teeth were randomly assigned into two groups and restored by one of the glass ionomer material; Group A: A high viscosity (Ketac Molar, 3M ESPE) Group B: A nano-filled resin-modified (Ketac N100, 3M ESPE) glass ionomer. One clinician prepared all the cavities. The materials were used according to the manufacturers’ recommendations. The restored teeth were then stored in distilled water at 37°C for 24 h, thermocycled at 5-55°C for 1000 cycles. The specimens were immersed in aqueous solution of Indian ink dye for 48 h at room temperature. They were embedded in resin polyester and sectioned longitudinally in a buccolingual direction. Microleakage was assessed according to the depth of dye penetration along the restoration. The extent of dye penetration at the occlusal and gingival margins was assessed using a stereo microscope. Randomly selected samples from each group were prepared for scanning electron microscope evaluation. The data were statistically analyzed with Friedman and Wilcoxon signed ranks tests. Results: There were statistically significant differences between the microleakage scores of the two groups for both occlusal and gingival scores (P = 0.001). Occlusal and gingival scores for high viscosity glass ionomer (P = 0.024) and nanoionomer (P = 0.021) using Wilcoxon signed ranks tests showed statistically significant differences. High viscosity glass ionomer showed significantly less microleakage compared to the nano-filled resin-modified glass-ionomer (RMGIs) at occlusal margin (P = 0.001). No significant differences were found between the groups at gingival margin (P = 0.0317). Conclusion: Within the limitations of this in vitro study, nano-filled RMGIs restorations did not perform better than high viscosity glass ionomer in class V cavities in terms of microleakage assessment.

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