A Comparative Evaluation of the Role of Self-Adhesive Flowable Composite in Enhancing Sealant Retention Versus Conventional Pits and Fissure Sealant With and Without Fissurotomy in Permanent Molars

Inclusion Criteria: * Normal healthy children aged 6 to 8 years. * Children with high caries risk * Completely erupted lower first permanent molars with deep pits and fissures. * Fissures either intact, sound or retentive which are stained, caries free or ICDAS 0-2. * Availability for the duration of the study. * Satisfactory dental care performed at home. Exclusion Criteria: * Children whose parents refuse to sign informed consent. * Long-term medication affecting the salivary flow. * Children enrolled for other studies or fluoridation program. * Adverse reaction reported to any dental material. * Uncooperative child. * Bruxism or malocclusion. * Children with developmental defects/ hypoplastic molars or caries affected teeth (ICDAS\>2). * Teeth with restoration and partially retained sealants. * Children who cannot come for the follow-up.