Seal Material Research Articles

Sealing efficacy of various rubber dam barrier materials used for isolation procedures: A randomized controlled trial

ABSTRACT Aim: The aim of the study was to assess the sealing efficacy of three dam seal materials. Methods: Ninety participants were enrolled after obtaining consent. After the placement of rubber dam (RD), a stream of air was applied at the interface area and visualized at ××6 magnification to identify sealing ability. Dam seal materials were divided into Group A: Liquid Dam, Group B: Kool-Dam, and Group C: OraSeal caulking putty substance. Leakage was assessed using self-designed criteria such as sealing ability, retention, ease of adaptability, and removal. The data were tabulated and analyzed using IBM SPSS 20 software. Results: Kool-Dam (Group B) demonstrated superior effectiveness in controlling saliva seepage around the clamp and teeth (P = 0.039) compared to other groups. In addition, it was evident that Kool-Dam (Group B) had greater effectiveness as compared to Liquid Dam and OraSeal (Group C) with relation to the retention of dam seal material (P = 0.039). There was no statistically significant difference (P < 0.05) in the ease of adaptation or removal of dam seal material. Conclusion: This study highlights the importance of dam seal materials as an adjunct material to establish a tight seal over a RD placement. From the present study, it was evident that Kool-Dam exhibited superior performance over Liquid Dam and OraSeal dam seal material in terms of better sealing ability and retention of the dam seal materials.

Microstructure, Mechanical Properties, and Wear Behavior of Dissimilar Metallic Coatings for Steel Discs of Butterfly Valves

Abstract In the present work, coating materials that can be welded to the EN 1.6220 low-alloy steel disc of a butterfly valve and are also compatible with the seal material, i.e., 17–4 PH steel, are studied. 312 duplex stainless steel, 316 austenitic stainless steel, and Stellite 6 are identified as potential coating materials for the disc based on Cobweb analysis and are welded to the disc using metal active gas (MAG) welding (312 and 316 steel coatings) and powder plasma arc welding (Stellite 6 coating). Microstructural analyses and Vickers hardness measurements of the weld joints are performed. The surface roughness and wear behavior of the coatings are also studied. Nanoscale wear phenomena and consequent phase transformations are studied using molecular dynamics simulations. The results show that 312 and 316 stainless steels are suitable coating materials for the disc.

Targeted synthesis, macroscopic and microscopic evaluation of permeability performance of a new high-permeability fog seal

To improve the working performance of fog seal material and leverage its quality enhancement role in maintaining pavement, the new fog seal materials with significant permeability and bonding properties were prepared by adding penetrant. The change rules in the permeability of fog seal materials at different working conditions were studied. The macroscopic and microscopic combined method for evaluating the permeability of fog seal materials was proposed, and the correlation between permeability and asphalt mixture porosity was determined. The results showed that the fog seal materials with 4 % II penetrant have best permeability. The recommended spraying volume of fog seal is 0.6 kg/m2, and the construction temperature is 25 °C. The fog seal has a penetration depth of 8.4–34.4 mm at a porosity of 4 %−10 %. The proposed penetration depth evaluation method combining indoor testing and CT scanning can accurately evaluate the penetration performance of fog seal materials.

Thermal stress and contact analysis utilizing tested temperature data in a kW-class external-manifold solid oxide fuel cell stack

Thermal stress and contact are two pivotal factors influencing the operational lifespan and performance of solid oxide fuel cell (SOFC) stacks. In practical kW-MW SOFC systems, stack boxes are typically constructed using kW-class stack blocks comprising dozens of cells. Temperature distribution affects the thermal stress distribution, thus affecting the contact of the stack. In this work, the thermal stress distribution and contact of a 2.5 kW external-manifold stack composed of 60 repeat units are investigated by using finite element analysis (FEA). To get a more accurate and realistic results, temperature data of a stack measured in an ongoing SOFC system is incorporated into the computational model. The influences of the clamp loads from manifolds, the structure of current collectors, the number of spacer plates, and the thickness of interconnects on the thermal stress distribution and contact of the stack are investigated. In the basic stack, the tensile stress induced by the temperature gradient appears to be the primary cause of the high thermal stress in the air inlet region of top cells. Due to the high-temperature strength of the seal material and endplates, the contact is inferior in cells near endplates. Increasing the clamp loads of manifolds within specified limits leads to a reduction in both the magnitude and area of high thermal stress, concurrently enhancing the stack contact. Strengthening the current collector structure induces more high-stress regions and simultaneously increases the stack contact. The introduction of overmuch spacer plates results in more high stress regions and a deterioration in stack contact. Moreover, increasing the thickness of interconnects introduces more high stress regions, negatively impacting stack contact.

The penetrating restoration mechanism of reactive polymer on slight crack of asphalt pavement

Abstract To explore the penetrating restoration mechanism of reactive polymer on slight crack (<3 mm) of asphalt pavement, based on the self-developed reactive MMA material, through the combination of viscosity control and micro-analysis methods, the penetration depth of different viscosities of binding materials to micro-crack and microstructure of the preventive maintenance interface were studied. The results show that the penetration depth of the binding material to the micro-crack is positively correlated with the viscosity of the material, and the restoration effect of the micro-crack depends on the fullness of the filling and curing state of the material in the crack. When the filler content is 20%, the penetration depth of the binding material to the micro-crack can reach 1 mm. The penetration depth can be changed through viscosity control, and a full-continuous restoration structure can be obtained. The microstructure of the micro-crack restoration area shows that the penetration enhancement of the polymer seal material to the micro-crack in the pavement includes three processes: penetration, filling, and curing.

Recyclable Tough Adhesive Sheets with Movable Cross-Links for Sustainable Use.

Acrylic adhesive sheets have been used for many applications, from popular seal materials to high-end electrical devices. One of the basic and critical design features of adhesives is effective covalent cross-linking for superior adhesive properties. On the other hand, covalent cross-linking prevents reuse or recycling of the adhesive. This makes the adhesive sheets insoluble and poorly workable. For development of sustainable adhesives, we investigated the adhesive sheets based on acrylic elastomers with "Movable Cross-links" (M-PEA-CD (0.5)) copolymerized with 0.5 mol % cyclodextrin monomers. The peel strength and creep resistance of M-PEA-CD (0.5) were greater than those of adhesives (N-PEA) without any cross-links. M-PEA-CD (0.5) was recyclable via dissolution in ethyl acetate. Furthermore, the recycled M-PEA-CD (0.5) from solution exhibited the same adhesion properties as virgin M-PEA-CD (0.5). Spectroscopic and mechanical measurements indicated that topological cross-linking with Cyclodextrin (CD) moieties generated novel recyclable adhesive sheets without restricting the polymer main chains, unlike covalent cross-linking (CC-PEA). The movable cross-links were maintained in both the solid state and in solution, which allowed recycling of the elastomer via simple methods.

The Assessment of Resin-Based Composite Sealants' Effectiveness in Arresting Non-Cavitated Dentin Carious Lesions (ICDAS 3)-A 12 Month Follow-Up Preliminary Study.

Background and Objectives: The therapeutic management of carious lesions remains a significant focus for researchers, given their persistently high prevalence despite being largely preventable. This study aimed to compare the effectiveness of a composite resin-based sealant material in halting extended non-cavitated dentin carious lesions when used therapeutically versus preventively on caries-free teeth over a period of twelve months. Materials and Methods: out of the 236 children examined, 45 were excluded from the study due to non-compliance with the inclusion criteria. Thus, the study included 191 children aged 10-12 years, and 764 molars in total. Results: among these molars, 171 were caries-free (ICDAS II code 0), forming the Control group, while 180 molars were classified with an ICDAS II score of 3, forming the Study group. All molars were sealed and evaluated at 6- and 12-month follow-up intervals. Both intervals revealed statistically significant differences (p < 0.05) in sealant retention and carious lesion development between sound (ICDAS code 0) and decayed (ICDAS code 3) teeth. Conclusions: the findings did not support the effectiveness of sealants in halting non-cavitated dentin carious lesions classified as ICDAS II with code 3 compared to their preventive application in sound teeth classified as ICDAS II with code 0.

Position‐based fluid simulation for robotic injection sealing of pavement cracks

AbstractAutomated crack sealing could significantly benefit the maintenance of road pavements, but there is difficulty in depositing the correct volume of sealant material into the hidden crack space. A simulated model of the material flow within a crack space would allow the development of a predictive control scheme, such that the repair robot can apply suitable trajectories and operational parameters to accomplish neatly sealed surfaces. For the first time, the position‐based fluid (PBF) method, a computationally cheap and fast but approximate model of fluid flows, is studied for its feasibility for sealant flow simulation in the robotic injection crack sealing scenario. A Real‐to‐Sim experiment is performed, in which a PBF simulation of sealant in a virtual robotic crack sealing environment is mirrored from the physical lab setup. The fluid simulation is tuned to match the real‐world dynamics through comparison with 132 simulation runs, varying the artificial viscosity parameters (fluid–fluid viscous interaction) and (fluid–wall viscous interaction). It was found that had a varied three‐stage influence on the simulation error while 's negative influence on the simulation error only effectively applied to fluids satisfying . Through comparing the physical and virtual crack sealing results, the simulation was validated with an average fluid level error of 1.26 mm along a 3.1 mm wide, 16 mm deep and 80 mm long artificial crack, which shows the usefulness of the PBF method for robotic injection sealing. The accuracy and computational requirements of the PBF method are also discussed.

A Study on the Effect and Suppression of Hydrogen Permeation Behavior on the Friction Characteristics of PEEK/PTFE Composites via Molecular Dynamics Simulation.

To research the effect of hydrogen permeation on the friction characteristics of the seal materials on the hydrogen equipment, the molecular models of 10% PEEK/PTFE composites and its frictional models were established, respectively, and molecular dynamics (MDs) and giant canonical Monte Carlo (GCMC) methods were used to simulate the diffusion coefficient, dissolution coefficient and permeability coefficient of the hydrogen in PEEK/PTFE composites. The effect of a different amount of hydrogen on the friction and wear of PEEK/PTFE composites was also studied. The results showed that few permeations of the hydrogen gas mainly demonstrated having a positive effect on the surface of the PEEK/PTFE composites, and the wear rate of the PEEK/PTFE composites showed a slight decreasing trend. The wear rate of the PEEK/PTFE composites gradually decreased when more hydrogen molecules penetrated the matrix. With the further penetration of the hydrogen molecules, the wear rate and friction coefficient of the PEEK/PTFE composites rapidly increased, showing a negative effect. With the further penetration of the hydrogen molecule, the friction coefficient of the composite displayed a small fluctuation and then a rapid decreasing trend. Meanwhile, effective improvement measures were proposed, and the introduction of the graphene was verified to be effective to reduce the negative effect of the hydrogen permeation, thereby improving the friction performance of the PEEK/PTFE composites.

Evaluation of stress distributions of calcium silicate-based root canal sealer in bulk or with main core material: A finite element analysis study.

This research aimed to assess the stress distribution in lower premolars that were obturated with BioRoot RCS or AH Plus, with or without gutta percha (GP), and subjected to vertical and oblique forces. One 3D geometric model of a mandibular second premolar was created using SolidWorks software. Eight different scenarios representing different root canal filling techniques, single cone technique with GP and bulk technique with sealer only with occlusal load directions were simulated as follows: Model 1 (BioRoot RCS sealer and GP under vertical load [VL]), Model 2 (BioRoot RCS sealer and GP under oblique load [OL]), Model 3 (AH Plus sealer with GP under VL), Model 4 (AH Plus sealer with GP under OL), Model 5 (BioRoot RCS sealer in bulk under VL), Model 6 (BioRoot RCS in bulk under OL), Model 7 (AH Plus sealer in bulk under VL), and Model 8 (AH Plus sealer in bulk under OL). A static load of 200 N was applied at three occlusal contact points, with a 45° angle from lingual to buccal. The von Mises stresses in root dentin were higher in cases where AH Plus was used compared to BioRoot RCS. Furthermore, shifting the load to an oblique direction resulted in increased stress levels. Replacing GP with sealer material had no effect on the dentin maximum von Mises stress in BioRoot RCS cases. Presence of a core material resulted in lower stress in dentin for AH Plus cases, however, it did not affect the stress levels in dentin for cases filled with BioRoot RCS. Stress distribution in the dentin under oblique direction was higher regardless of sealer or technique used.

Ionic Hydraulic Fluids and Seal-Material Compatibility

Manufacturers of hydraulic fluids invest a lot of effort and resources in improving their physico-chemical properties, with the goal of getting as close as possible to the properties of an ideal hydraulic fluid. It should be non- flammable, environmentally friendly, sustainable and should have excellent physical and chemical properties. After decades of development in the field of ionic liquids and the search for an ionic liquid suitable for use in hydraulic systems, ionic hydraulic liquids are now already in industrial use, especially on devices that operate in harsh and risky operating conditions. Since ionic hydraulic fluids are a completely new type of hydraulic fluid, one of the issues is their compatibility with the materials present in the hydraulic components, including all the seals. This paper refers to the process of testing the compatibility of hydraulic seal materials with different types of ionic hydraulic fluids according to the standardized percentages and recommendations, with emphasis on changes in the swell, shrinkage and hardness of the seals. The presented results are a useful guide for selecting suitable seal materials in case of using high-tech ionic hydraulic fluids.

Microstructure and Properties of Hot Pressing Sintered SiC/Y3Al5O12 Composite Ceramics for Dry Gas Seals.

Silicon carbide (SiC) ceramics with high bending strength were prepared by hot pressing sintering (HPS) with yttrium aluminum garnet (Y3Al5O12, YAG) as sintering additive, and the effects of YAG content and sintering temperature on the sintering behavior, microstructure and mechanical properties of SiC ceramics were investigated in detail. The uniform distribution of YAG to form a liquid phase and the driving force provided by hot pressing sintering decrease the sintering temperature, improve the densification of SiC ceramics, and refine the crystal size. By means of suitable sintering conditions with the additional amount of YAG of 5 wt%, the sintering temperature of 1950 °C and a pressure of 30 MPa, the resultant SiC/YAG composite ceramics possesses high sintering and mechanical properties with the relative density of 98.53%, the bending strength of 675 MPa, the Vickers hardness of up to 17.92 GPa, and the elastic modulus of 386 GPa. The as-prepared SiC/YAG composite ceramics are promisingly used as the dry gas seal materials in the centrifugal compressors.

Comparison of the Effect of Different Bonding Agents on the Microleakage of Two Hydrophilic Pit and Fissure Sealants: An Ex Vivo Study.

To compare the impact of fifth- and seventh-generation bonding agents on the microleakage between Embrace WetBond sealants and Ionoseal. Forty extracted human premolar teeth were used for the study and grouped according to different sealants and bonding agents-group I: Embrace WetBond sealant with fifth-generation bonding agent; group II: Embrace WetBond sealant with seventh-generation bonding agent; group III: Ionoseal with fifth-generation bonding agent; group IV: Ionoseal with seventh-generation bonding agent. For microleakage evaluation, all the teeth were subjected to invasive sealant placement using the respective sealant materials in combination with bonding agents as specified. The treated teeth were stored at 37°C for 24 hours and then thermocycled for 100 cycles at temperatures of 5°C and 55°C with a dwell time of 30 seconds. In order to assess microleakage, the samples were immersed in 0.2% methylene blue dye for 24 hours, then sectioned in buccolingual direction, and evaluated under stereomicroscope. The mean microleakage scores in group III were highest at 0.90 ± 0.57, while the least was in group IV at 0.30 ± 0.68, indicating that Ionoseal with seventh-generation bonding agent was the most effective. However, when the mean microleakage scores of the four groups were compared using Kruskal-Wallis test, it indicated that the differences were not statistically significant. V R, P P, A A, et al. Comparison of the Effect of Different Bonding Agents on the Microleakage of Two Hydrophilic Pit and Fissure Sealants: An Ex Vivo Study. Int J Clin Pediatr Dent 2024;17(3):270-273.

Low stress creep response of PTFE sealants applied to PEM fuel cells

AbstractViscoelastic properties of polytetrafluoroethylene (PTFE) play a crucial role in forecasting its long‐term behavior in engineering applications. An attempt is made to explore the viscoelastic properties of PTFE sealants that are utilized in polymer electrolyte membrane fuel cell (PEMFC). It is to be noted that PTFE sealants are vulnerable to creep under constant loading at elevated temperatures. Moreover, the creep of sealants will lead to leakage of reactants from the cell, which affects the performance of PEMFC. PTFE is an excellent choice as a sealant material in low‐temperature polymer electrolyte membrane fuel cell (LT‐PEMFC), which operates in the temperature range of 60–80°C. PTFE can be prominently used as sealants in high‐temperature polymer electrolyte membrane fuel cell (HT‐PEMFC), as it possesses no significant change in its physical properties within the temperature range of −150 to 300°C along with the working conditions of HT‐PEMFC. In LT‐PEMFC, the sealants will typically be subjected to low stresses in the range of 1–5 MPa. In this article, the creep response of PTFE sealant material is extensively studied at various temperatures of 25 (room temperature), 35, 45, 55, and 65°C and at three stress levels of 2, 3, and 4 MPa. The time–temperature superposition principle is utilized to develop master curve at a reference temperature of 25°C, to forecast long‐term creep characteristics of PTFE sealants. Moreover, the master curve for creep compliance is developed for 4.5 h.

Influence of Bioceramic Cements on the Quality of Obturation of the Immature Tooth: An In Vitro Microscopic and Tomographic Study.

The present in vitro study focuses on the filling ability of three different bioceramic cements with or without the addition of a bioceramic sealer in an open apex model on the marginal apical adaptation, tubule infiltrations, and void distributions as well as the interface between the cement and the sealer materials. To this end, sixty mandibular premolars were used. MTA-Biorep (BR), Biodentine (BD), and Well-Root Putty (WR) were used to obturate the open apex model with or without the addition of a bioceramic sealer, namely TotalFill® BC sealer™ (TF). A digital optical microscope and scanning electron microscope (SEM) were used to investigate the cement-dentin interface, marginal apical adaptation, and the material infiltration into the dentinal tubules. Micro-computed X-ray tomography and digital optical microscopy were used to investigate the cement-sealer interface. The results were analyzed by using the Kruskal-Wallis test. No significant difference was found between the groups for the marginal apical adaptation quality (p > 0.05). Good adaptation of the dentin-cement interface was found for all tested groups and the sealer was placed between the cement material and dentinal walls. All the groups demonstrated some infiltrations into the dentinal tubules at the coronal part except for the BR group. A good internal interface was found between the cement and the sealer with the presence of voids at the external interface. A larger number of voids were found in the case of the BD-TF group compared to each of the other two groups (p < 0.05). Within the limitations of the present in vitro study, all the groups demonstrated good marginal apical adaptation. The use of a sealer in an open apex does not guarantee good filling and, in addition, creates voids at the external interfaces with the dental walls when the premixed sealer is used with powder-liquid cement systems. The use of a premixed bioceramic cement could offer fewer complications than when a powder-liquid cement system is used.

Research on the Performance of Cement-Based Composite Borehole Sealing Material Based on Orthogonal Test.

In order to achieve better sealing of boreholes, the performance of sealing materials is modified to improve the efficiency of coalbed methane extraction. In this paper, a new type of cement-based hole sealing material was prepared by using silicate cement (PC) and cement sulfoaluminate (SAC) as raw materials, supplemented with various additives, such as fly ash, Na2SO4, Ca(OH)2, and poly(vinyl alcohol) (PVA) fiber. The effects of these additives on the fluidity, setting time, and compressive strength of the PC-SAC compounded cementitious pore sealing material were investigated by orthogonal tests, and the hydration process and hydration products were analyzed by X-ray diffraction (XRD), thermogravimetry-differential thermogravimetry (TG-DTG), and scanning electron microscopy (SEM). The results show that the water-cement ratio has the most significant influence on the various properties of the material; the two additives of Na2SO4 and Ca(OH)2 play a key role in the setting time of the material; the optimal group, i.e., water-cement ratio of 0.5, fly ash of 5%, Na2SO4 of 1%, Ca(OH)2 of 0.75%, and PVA fibers of 0.8%, is obtained by the orthogonal test method, which is the closest to the actual needs of the project. The hydration products of the optimized materials have obvious changes, and the needle-like AFt and C-S-H increase so that the performance of the materials has been significantly improved.

Bacterial Flora in Screw-Fixed Superstructures with Different Sealing Materials: A Comparative Clinical Trial.

A screw-fixed superstructure is predominantly selected for implant prostheses because of the concern regarding developing peri-implantitis, although its infection route remains unclear. Focusing on microleakage from access holes, the present study clinically investigated the bacterial flora in access holes with different sealing materials. We examined 38 sites in 19 patients with two adjacent screw-fixed superstructures. Composite resin was used in the control group, and zinc-containing glass ionomer cement was used in the test group. Bacteria were collected from the access holes 28 days after superstructure placement and were subjected to DNA hybridization analysis. The same patient comparisons of the bacterial counts showed a significant decrease in 14 bacterial species for the red, yellow, and purple complexes in the test group (p < 0.05). In addition, the same patient comparisons of the bacterial ratios showed a significant decrease in six bacterial species for the orange, green, yellow, and purple complexes in the test group (p < 0.05). Furthermore, the same patient comparisons of the implant positivity rates showed a significant decrease in the six bacterial species for the orange, yellow, and purple complexes in the test group. The results of this study indicate that zinc-containing glass ionomer cement is effective as a sealing material for access holes.

Evaluation of the Factors Affecting Higher Hospitalization Cost of Lung Resection for Primary Lung Cancer: A Retrospective Cohort Study.

This study aims to evaluate the factors associated with the higher hospitalization cost of lung resection for primary lung cancer to contribute to the reduction of healthcare spending. A total of 435 consecutive primary lung cancer patients who underwent lung resection by a single surgeon at a single institution were enrolled. Baseline patient characteristics, operative procedures, postoperative complications, and postoperative courses were analyzed in relation to the hospitalization cost. Patients with higher costs (exceeding the third quartile [TQ]) were compared with patients with lower costs (less than TQ). Median and TQ medical costs for overall cases were 11177 US dollars (USD) and 12292 USD, respectively. Smoking history, history of coronary artery disease, previous thoracotomy, multiple sealant material use, transfusion, tumor factor T3 or higher, squamous cell carcinoma, postoperative complications, and longer postoperative hospital stay (>10 POD) were significant risk factors for increased hospitalization cost in multivariate analysis. The 5-year survival rate was significantly lower in the higher hospitalization cost group. In addition to postoperative complications and prolonged hospitalization, patient background, histological types, and intraoperative factors were also considered as the risk factors for higher medical costs.

Clinical Evaluation of the Retention of Four Different Pit and Fissure Sealants on the First Permanent Molars – An Original Research

ABSTRACT Objective: In this study, the retention rates of four different pit and fissure sealant materials on the first permanent molars were clinically assessed and compared. Materials and Methods: A total of 120 kids aged 7 to 10 participated in a randomized controlled experiment. On their first permanent teeth, the subjects each got one of the four sealant materials (A, B, C, or D). Over the course of 24 months, the retention rates were evaluated every 6 months. The Chi-square test and Kaplan–Meier survival analysis were used for statistical analysis. Results: At 6, 12, 18, and 24 months, the following retention rates were observed overall: A (85%, 78%, 65%, 52%), B (90%, 82%, 70%, 60%), C (78%, 70%, 55%, 42%), and D (95%, 88%, 75%, 62%). At each time point, the sealant materials showed significant variations in retention rates (P 0.05). While sealants A and C showed lower retention rates, sealant D showed the best retention rates, followed by sealant B. Conclusion: This study shows that different materials have different retention rates for pit and fissure sealants on first permanent molars. Higher retention rates for sealants D and B suggest that they may be superior than sealants A and C. These results highlight how crucial it is to choose the right sealant materials to guarantee long-term retention and effectiveness in avoiding dental cavities.

Antibacterial Effect of Two Novel Sealants: A Laboratory-Based Study.

This research sought to assess the impact of polyhexamethylene guanidine hydrochloride (PHMGH) and 1,3,5-triacryloyl hexahydro-1,3,5-triazine (TAT) on the antibacterial activity of an experimental resin sealant. The two experimental sealants were formulated based on previous research, and Streptococcus mutans (S. mutans) was tested for biofilm and planktonic bacteria's antibacterial properties. In 48 hours, 300 L of frozen S. mutans in skim milk was stored in an oven at 37°C in a microaerophilic atmosphere with 5% of CO2 and put on a petri plate containing brain-heart infusion (BHI) broth with agar at 15 g/L. By combining 100 mL of the subculture broth with 900 mL of a sterile saline solution (0.9%) in an Eppendorf tube, the initial inoculum used for the experiments was evaluated. The colonies were measured in colony-forming units per milliliter (CFU/mL) after being counted visually. To measure the antibacterial activity, log CFU/mL was used to express the number of bacteria in the broth that had been in contact with the samples for 24 hours. Outcomes of antibacterial activity against planktonic bacteria and against biofilm development on polymerized materials. The two innovative sealant materials were found to differ significantly from one another, while group 2's mean and standard deviation values were larger. Dental sealants designed with PHMGH and TCPTAT for anticaries application showed less bacterial growth throughout time the cavity prevention properties of the resin sealant.