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Fluoride release from four reinforced composite resins; a one year study
B I Cohen1, A S Deutsch, B L Musikant
1Essential Dental Laboratories, S. Hackensack, NJ, USA.
Oral Health
|April 1, 1995
Summary
High-viscosity Ti-Core composite resins released the most fluoride over one year. Low-viscosity Flexi-Flow resins showed similar fluoride release, with all tested materials falling within expected ranges for dental cements.
Area of Science:
- Dental Materials Science
- Biomaterials Engineering
Background:
- Fluoridated composite resins are crucial in restorative dentistry.
- Understanding fluoride release kinetics is vital for material longevity and efficacy.
Purpose of the Study:
- To compare the fluoride release of four different fluoridated composite resins over a 52-week period.
- To differentiate between high-viscosity (Ti-Core) and low-viscosity (Flexi-Flow) core materials.
Main Methods:
- Four composite resins were categorized into high-viscosity (Ti-Core, Ti-Core Natural) and low-viscosity (Flexi-Flow Cement with titanium, Flexi-Flow Natural) groups.
- Fluoride release was measured in parts per million (ppm) in deionized water over one year.
- Statistical analyses included Repeated Measures ANOVA and one-way ANOVA with the Student-Newman-Keuls test.
Main Results:
- Ti-Core with titanium (Group 1) exhibited the highest cumulative fluoride release over 52 weeks.
- Ti-Core Natural (Group 2) showed the second-highest fluoride release.
- Flexi-Flow Natural (Group 4) and Flexi-Flow with titanium (Group 3) demonstrated similar weekly fluoride release rates.
Conclusions:
- Ti-Core systems released significantly different amounts of fluoride compared to Flexi-Flow systems and from each other.
- The observed fluoride release levels for all tested materials were comparable to those reported for other dental fluoridated cements and composite resins.
- Material viscosity and composition influence long-term fluoride ion release profiles.