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Quantitative changes in fissure sealant six months after placement
J P Conry1, M R Pintado, W H Douglas
1University of Minnesota, Minneapolis.
Pediatric Dentistry
|May 1, 1990
Summary
Fissure sealant showed significant volumetric loss, averaging 0.23 mm3 or 13.99% after six months. This wear varied by tooth type but was not statistically significant between groups.
Area of Science:
- Dental Materials Science
- Biomaterials Research
- Preventive Dentistry
Background:
- Fissure sealants are crucial for preventing dental caries.
- Previous research indicated substantial early loss of fissure sealant volume.
- Understanding long-term sealant retention is vital for effective caries prevention strategies.
Purpose of the Study:
- To quantify the volumetric loss of fissure sealant after a six-month period.
- To analyze sealant wear patterns and depth in premolar teeth.
Main Methods:
- Utilized a servohydraulic profilometric apparatus and computer graphics for precise measurements.
- Created epoxy replicas from silicone impressions taken at baseline, immediately after sealing, and at six months.
- Employed a 3D root mean square (RMS) goodness-of-fit program to superimpose and analyze sealant volume changes.
Main Results:
- The average volumetric loss of fissure sealant after six months was 0.23 mm3.
- This represented an overall loss of 13.99% of the applied sealant across all premolars.
- Specific volumetric losses were recorded for maxillary and mandibular first and second premolars, with no significant differences between tooth groups (ANOVA).
Conclusions:
- Fissure sealants experience measurable volumetric loss within six months post-placement.
- The wear characteristics suggest a need for further investigation into sealant longevity and material properties.
- Findings contribute to the understanding of sealant durability in clinical settings.