Surface conditioning and the organic structure of the sealant may be factors that influence sealant retention
Improved sealant retention
with bonding agents: a clinical study of two-bottle and single-bottle systems.
and caries development after resealing on first permanent molars of low, moderate and high caries risk children.
High initial caries risk showed significantly lower sealant retention
rates and higher occlusal caries prevalence following sealant loss, compared to those of low risk.
Finally in one of the first studies on FS retention following adhesives application it was clearly shown that these factors helped substantially in sealant retention in cases of molars with enamel 'alterations' as they were described that time [Feigal et al.
Substantially increased fissure sealant retention in hypomineralised molars with occlusal opacities was achieved when a single bottle adhesive system was used prior to sealant placement.
Teethmate F1 (0) Complete retention % (n) 60.
Feigal RJ, Musherurue P, Gillespie B, Levy-Polack M, Quelhas I, Hebling J: Improved sealant retention with bonding agents: A clinical study of two-bottle and single-bottle systems.
Twelve-month Sealant Retention in a School-based Program Using a Self-etching Primer/Adhesive Journal of Public Health Dentistry 2004 64 (4), 191-197.
These results suggest that development of occlusal surface caries is independent of the material used to bond FS to a tooth prior to failure of a sealant or the sealant material used and that the critical factor is adequate sealant retention and coverage.
2006] concluded that it is still necessary to carry out well-designed randomized clinical trials focused on sealant retention considering different clinical procedures, particularly new enamel preparation techniques.