scholarly journals Microleakage of conventional light-cure resin-based fissure sealant and resin-modified glass ionomer sealant after application of a fluoride varnish on demineralized enamel

PLoS ONE ◽  
2018 ◽  
Vol 13 (12) ◽  
pp. e0208856 ◽  
Author(s):  
Concepción Germán-Cecilia ◽  
Sandra María Gallego Reyes ◽  
Amparo Pérez Silva ◽  
Clara Serna Muñoz ◽  
Antonio José Ortiz-Ruiz
Keyword(s):  
Fluoride Varnish ◽  
Glass Ionomer ◽  
Fissure Sealant ◽  
Demineralized Enamel ◽  
Resin Modified Glass Ionomer

scholarly journals Comparative study of resin sealant and resin modified glass ionomer as pit and fissure sealant

2017 ◽  
Vol 10 (1) ◽  
pp. 21
Author(s):  
Shirin Malek ◽  
Mozammal Hossain ◽  
Md. Abdul Gafur ◽  
Md. Shahjalal Rana ◽  
Md. Ali Asgor Moral
Keyword(s):  
Glass Ionomer Cement ◽  
Good Alternative ◽  
Glass Ionomer ◽  
Fissure Sealant ◽  
Treatment Groups ◽  
Organic Debris ◽  
Resin Modified Glass Ionomer ◽  
Group B ◽  
Resin Sealant

<p>The purpose of the present study was to compare the marginal integrity of resin modified glass ionomer cement with that of resin sealant, <em>in vitro</em>. Forty artificial pit and fissure cavities were prepared in occlusal surface of extracted premolar teeth by using ¼ round carbide bur. Cavities were condensed with artificial organic debris followed by cleaning with prophylaxis pumice brush and paste and then separated into two treatment groups. In Group A, 15 fissure cavities were sealed by resin sealant and in Group B, 15 fissure cavities were sealed by resin modified glass ionomer sealant. These specimens were subjected to thermo-cycling followed by dye penetration test. The remaining 5 cavities from each group were analyzed for debris score by the SEM. The results of the microleakage test showed that the efficacy of preventing microleakage of samples sealed by resin modified glass ionomer sealant was higher than the samples sealed by resin sealant. However, no significant differences were found. It can be concluded that use of resin modified glass ionomer sealant is a good alternative for sealing pits and fissures.</p>

scholarly journals Ameloplasty is counterproductive in reducing microleakage around Resin Modified Glass Ionomer and Resin based fissure sealants

2020 ◽  
Vol 36 (3) ◽  
Author(s):  
Tabinda Nawaz Khan ◽  
Farhan Raza Khan ◽  
Syed Yawar Ali Abidi
Keyword(s):  
Glass Ionomer Cement ◽  
Ordinal Scale ◽  
P Value ◽  
Glass Ionomer ◽  
Fissure Sealants ◽  
Human Teeth ◽  
Fissure Sealant ◽  
Significant Difference ◽  
Resin Modified Glass Ionomer

Objective: To compare the microleakage around resin modified glass ionomer cement (RMGIC) based sealants and flowable resin based sealants placed with or without ameloplasty in extracted human teeth. Methods: This in-vitro experimental study was conducted at the Operative Dentistry Department, Dow University of Health Sciences, Karachi, Pakistan from June 2017 to December 2018. Sixty extracted human molars and premolars were assigned to four groups (n=15) each, according to the type of fissure sealant (flowable resin based sealant or resin modified glass ionomer based sealant) used and either placed with or without ameloplasty. Specimens were thermocycled and then immersed in 1% methylene blue for 24 hours. Specimens were then sectioned and examined using stereo-microscope (50X) for microleakage that was scored on an ordinal scale. Mann-Whitney U test and Ordinal regression were applied. Level of significance kept at 0.05. Results: There was a statistically significant difference (p-value <0.001) between the two sealant types for the microleakage scores. Sealants placed with ameloplasty demonstrated significantly higher microleakage values (p-value <0.001). Conclusion: Microleakage was found to be more pronounced in RMGIC based sealants compared to the resin based sealants. Ameloplasty resulted in higher leakage around the sealants irrespective of the chemistry of material. doi: https://doi.org/10.12669/pjms.36.3.1268 How to cite this:Khan TN, Khan FR, Abidi SYA. Ameloplasty is counterproductive in reducing microleakage around Resin Modified Glass Ionomer and Resin based fissure sealants. Pak J Med Sci. 2020;36(3):---------. doi: https://doi.org/10.12669/pjms.36.3.1268 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

scholarly journals A comparative clinical study on efficacy of nanofilled resin-modified and conventional glass ionomer pit and fissure sealant in molar tooth

2018 ◽  
Vol 11 (4) ◽  
pp. 278-281
Author(s):  
Dilruba Khatun ◽  
Mozammal Hossain ◽  
Md. Joynal Abdin ◽  
Md. Abdul Hannan Sheikh ◽  
Md. Shamsul Alam
Keyword(s):  
Clinical Performance ◽  
Color Stability ◽  
Marginal Adaptation ◽  
Glass Ionomer ◽  
Chi Square ◽  
Fissure Sealant ◽  
Resin Modified Glass Ionomer ◽  
Pit And Fissure Sealant ◽  
The Difference ◽  
Observation Period

The present study compared the clinical performance of nanoparticulated resin modified glass ionomer and conventional glass ionomer pit and fissure sealant on permanent molars. Fifty patient having bilateral occlusal grooves in pits and fissures of the occlusal surface were included for this study where 50 teeth were treated with nanopaticulated resin modified and the remaining 50 teeth were subjected to conventional glass ionomer sealants.  The color match, retention and marginal adaptation were assessed at 3, 6 and 12 months and statistical analysis was performed by Chi-square test to assess the difference between the two sealants; a values of <0.05 was considered as statistically significant. The results showed that although there were no significant differences between two sealants at baseline and 3 months observation period but nanoparticulated resin modified glass ionomer sealants showed better clinical performance than that of conventional glass ionomer sealants at 12 months and the differences between two sealants were statistically significant (p<0.05). It can be concluded that naqnoparticulated resin modified glass ionomer sealant exhibited better color stability, more retention, and better marginal adaptation than those of conventional glass ionomer sealants at 12 months observation period.

scholarly journals Comparative efficacy of nanofilled and microfilled resin-modified glass ionomer as pits and fissure sealant in permanent molar teeth

2017 ◽  
Vol 10 (2) ◽  
pp. 53
Author(s):  
Manzuma Akhter Zakaria ◽  
Mozammal Hossain ◽  
Ali Asgor Moral
Keyword(s):  
Color Stability ◽  
Marginal Adaptation ◽  
Glass Ionomer ◽  
Color Match ◽  
Chi Square ◽  
Fissure Sealant ◽  
Permanent Molar ◽  
Group I ◽  
Resin Modified Glass Ionomer ◽  
Molar Teeth

<p>The purpose of the present study was to compare the efficacy of nanofilled and microfilled resin- modified glass ionomer as pits and fissure sealants in permanent molar teeth. Ninety six teeth having fissure at the occlusal surface were randomly divided into two groups: Group I: Treated by nanofilled resin-modified glass ionomer sealant and Group II: Treated by microfilled resin- modified glass ionomer sealants. Clinical assessment was performed by modified Ryge´s criteria by means of retention, color match, marginal adaptation at 3, 6, and 12 months follow-up visit. Chi-square test was used for testing differences between the two groups; a value of p&lt;0.05 was considered as statistically significant. The results revealed that at 12 months observation period, nanofilled resin-modified glass ionomer sealant showed better retention, color stability and marginal adaptation than that of microfilled resin-modified glass ionomer sealants. Furthermore, the differences between two groups in respect to marginal adaptation and color match were statistically significant (p&lt;0.05). It can be concluded that nanofilled resin-modified glass ionomer sealant could be a better alternative to microfilled resin- modified glass ionomer sealant.</p>

In vitro Evaluation of Topical Fluoride Varnishes Effect on Enamel Demineralization Around Orthodontic Brackets

2018 ◽  
Vol 69 (11) ◽  
pp. 3013-3017
Author(s):  
Roxana Oancea ◽  
Anca Mesaros ◽  
Octavia Iulia Balean ◽  
Angela Codruta Podariu
Keyword(s):  
Resin Composite ◽  
Glass Ionomer Cement ◽  
Orthodontic Brackets ◽  
Fluoride Varnish ◽  
Control Group ◽  
Glass Ionomer ◽  
Mean Values ◽  
Resin Modified Glass Ionomer ◽  
Ionomer Cement

The aim of this in vitro study was to test the effectiveness of applying the fluoride varnish on bracketed teeth with 2 types of bonding agent. 10 patients aged 12-18 (mean age 13.06 +/- 1.72 years) were scheduled to have the four fist premolar teeth extracted. The teeth were dived in 4 groups: 2 experimental and 2 controls. The teeth were cut in half so 80 surfaces were analyzed. The brackets were collated with Transbond XT and Fuji Ortho Lc. For each of the materials that have been used there was a test and a control group. The tests groups received one single application of Duraphat. The content in fluoride was measured by spectrophotometer. The mean values of fluoride indicated an important increase in the fluoride content after using resin modified glass ionomer cement and fluoride varnish. Statistically significant differences were determined between each of the control and treatment group when both materials have been used, after 10 days and one month application of the varnish. The study pointed out that the fluoride varnish combined with resin modified glass ionomer cement is more efficient than the classical resin composite in preventing demineralization around orthodontic brackets.

scholarly journals Efficacy of CPP-ACP fluoride varnish applied with and without acid etching in preventing enamel demineralization compared to light-curable fluoride varnish

2021 ◽  
Author(s):  
Moufida Abufarwa ◽  
Amal Noureldin ◽  
Rosemary Dziak ◽  
David Covell
Keyword(s):  
Enamel Surface ◽  
Spherical Particles ◽  
Fluoride Varnish ◽  
Acid Etching ◽  
Control Group ◽  
Glass Ionomer ◽  
Surface Microhardness ◽  
Enamel Demineralization ◽  
Significant Difference ◽  
Resin Modified Glass Ionomer

ABSTRACT Objectives To compare efficacy of casein phosphopeptide (CPP)–amorphous calcium phosphate (ACP) fluoride varnish and light-curable resin modified glass ionomer fluoride varnish (FV) in preventing white spot lesions and evaluating acid etching prior to CPP-ACPFV application on its efficacy. Materials and Methods Molars and premolars were transected and halves divided into four groups (n = 18/group): (1) resin-modified glass ionomer FV: etched and Clinpro-XT varnish (3M ESPE, Pymble, New South Wales, Australia) application; (2) CPP-ACPFV: MI varnish (GC America, Alsip, IL) application; (3) Etch+CPP-ACPFV: etched and MI varnish application; (4) Control: etched and no surface treatment. To simulate 12 weeks in an intraoral environment, samples were subjected to thermocycling, brushing, and pH cycling. Enamel surface microhardness was evaluated at baseline and after the simulated 12 weeks. Representative samples were also assessed using scanning electron microscopy (SEM). Results At baseline there was no significant difference in microhardness among groups. After the simulated 12 weeks, all groups showed significant within-group differences (P &lt; .001). Control showed the highest percentage loss of surface microhardness (89%), followed by CPP-ACPFV (58%), RMGIFV (51%), and Etch+CPP-ACPFV (24%). The control group had a significant decrease in microhardness compared to all experimental groups (P &lt; .001). No difference was found between the RMGIFV and CPP-ACPFV varnish groups. The Etch+CPP-ACPFV group had significantly less decrease in microhardness compared to the RMGIFV (P &lt; .001) and CPP-ACPFV groups (P &lt; .001). With SEM, control samples showed signs of enamel surface damage, while experimental groups showed spherical particles on a relatively intact surface. Conclusions RMGIFV and CPP-ACPFV are effective in reducing enamel demineralization. Acid etching the enamel surface prior to CPP-ACPFV varnish application increased its efficacy.

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.

Occlusal caries formation in vitro: comparison of resinmodified glass ionomer with fluoride-releasing sealant

2000 ◽  
Vol 24 (4) ◽  
pp. 309-314 ◽  
Author(s):  
M. John Hicks ◽  
Catherine Flaitz
Keyword(s):  
Surface Morphology ◽  
Artificial Saliva ◽  
Glass Ionomer ◽  
Lesion Formation ◽  
Occlusal Caries ◽  
Fissure Sealant ◽  
Occlusal Surfaces ◽  
Mandibular Molar ◽  
Resin Modified Glass Ionomer

The purpose of this laboratory study was to evaluate caries-like lesion formation in occlusal enamel adjacent to a light-cured resin-modified glass ionomer utilized as a pit and fissure sealant and a conventional light-cured, fluoride-releasing sealant. Fluoride-free prophylaxis was done on occlusal surfaces of 12 caries-free mandibular molar teeth that had not been exposed to the oral cavity. Occlusal surface morphology was examined by SEM on the uncoated specimens. Each tooth was then sectioned into 2 portions buccolingually, producing mesial and distal tooth halve. Occlusal surfaces of mesial tooth halves were prepared for an experimental light-cured resin-modified glass ionomer (RMG) sealant (PH-SE II, ESPE), and for comparison, a light-cured fluoride-releasing pit and fissure (PFS) sealant (Helioseal F, Ivoclar) was placed on occlusal surfaces of the corresponding distal tooth halves. The sealed occlusal surfaces were examined uncoated by SEM to compare RMG and PFS adaptation. After thermocycling in artificial saliva, caries-like lesions were formed in the occlusal surfaces adjacent to RMG and PFS. Longitudinal sections were taken for comparison of lesion formation adjacent to RMG and PFS. Mean lesion depths in occlusal surfaces were 64±17mm for RMG, and 116±27mm for PFS (p&lt;0.05, paired t-test). Occlusal lesions terminated at the point where bonding occurred between the occlusal enamel and RMG or PFS. SEM surface topography demonstrated adequate adaptation of the materials with obliteration of the typical pit and fissure surface morphology by both RMG and PFS. While both the resin-modified glass ionomer and fluoride-releasing sealant materials protected the pit and fissure enamel from caries development, the resin-modified glass ionomer reduced the extent of caries involvement in the adjacent unsealed occlusal incline enamel, when compared with the resin sealant.

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