This randomized clinical trial aimed to compare the wear resistance and clinical performance of bioactive versus conventional resin-based pit and fissure sealants over a 12-month period. Conducted on young adults with sound, caries-susceptible molars, the study evaluated three groups: bioactive sealants applied with and without etching, and conventional resin-based sealants with etching. Clinical assessments and 3D digital scans were used to measure sealant retention and wear. The study seeks to determine whether bioactive sealants, especially when applied without etching, provide comparable long-term protection and durability to conventional sealants, potentially simplifying application without compromising effectiveness.
This study is a randomized controlled clinical trial designed to evaluate and compare the wear resistance and clinical performance of bioactive pit and fissure sealants-applied with and without acid etching-against conventional resin-based sealants in young adults aged 18-25 with caries-susceptible, sound first permanent molars. Seventy-five teeth were randomly assigned to three groups: Group 1 received a bioactive giomer-based sealant (BeautiSealant) with etching, Group 2 received the same sealant without etching, and Group 3 received a conventional resin-based sealant (Fisseal Promedica) with etching. Sealant retention and wear were evaluated clinically using modified USPHS criteria and digitally using intraoral 3D scanning at baseline, 6 months, and 12 months. The aim was to determine if omitting the etching step in bioactive sealants compromises their effectiveness, offering a simpler yet reliable alternative to conventional methods. The findings are expected to guide clinical decision-making on the most efficient and durable sealant protocols for caries prevention.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
DOUBLE
Enrollment
23
This group received BeautiSealant (a bioactive giomer-based sealant) applied after etching the enamel surface with 37% phosphoric acid for 15 seconds. The etching process creates micro-retentive patterns in the enamel to enhance micromechanical bonding, potentially improving the sealant's retention and wear resistance while also benefiting from the bioactive material's fluoride release and enamel remineralization properties.
In this group, BeautiSealant was applied directly to the tooth surface without prior etching. The goal was to simplify the procedure by eliminating the etching step, relying instead on the sealant's chemical bonding and bioactive properties (such as fluoride release and S-PRG technology) to maintain retention and resist wear, while reducing the risk of enamel alteration and improving clinical efficiency.
This group served as the control and received Fisseal (a conventional resin-based sealant) applied following standard etching with 37% phosphoric acid. This method is considered the gold standard for fissure sealing, offering strong micromechanical adhesion and proven wear resistance, making it a reliable benchmark for evaluating the performance of newer bioactive materials.
retention of wear resistance of the sealants
modified USPHS criteria
Time frame: 3,6,9 and 12 months
quantitative wear assesment
digital scanner
Time frame: 12 months
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