Fluorescence-aided Composite Removal in Directly Restored Permanent Posterior Teeth
| Autor: | Christian Meller, Roland Weiger, L Matthisson, Christian Dettwiler, Florin Eggmann, Thomas Connert |
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| Rok vydání: | 2020 |
| Předmět: |
Dentition
business.industry medicine.medical_treatment Dentistry 030206 dentistry 02 engineering and technology 021001 nanoscience & nanotechnology Composite Resins Fluorescence Dentition Permanent 03 medical and health sciences 0302 clinical medicine medicine Posterior teeth Humans Dental Restoration Permanent 0210 nano-technology business General Dentistry Dental restoration |
| Zdroj: | Operative Dentistry. 45:62-70 |
| ISSN: | 1559-2863 0361-7734 |
| DOI: | 10.2341/19-032-l |
| Popis: | SUMMARY Aim: The aim of this study was to quantitatively compare conventional composite removal and composite removal supported by the fluorescence-aided identification technique (FIT) regarding the completeness, selectivity, and duration of the procedure in directly restored permanent posterior teeth. Methods and Materials: Two operators removed standardized direct class II composite restorations (n=32 per operator) in human tooth models under simulated clinical conditions. According to a randomized allocation scheme, removal was performed with either the conventional technique (contra-angle handpiece) or supported by FIT. The duration of each removal procedure was recorded. The completeness and selectivity were volumetrically assessed through superimposition of three-dimensional surface scans. Statistical significance was tested by examining the overlap of 95% confidence intervals (CI). Multiple comparison was performed with Tukey tests for each variable. Results: Compared with the conventional technique, composite removal with FIT was faster (329 seconds [95% confidence interval (CI): 268-390 seconds] vs 179 seconds [95% CI: 150-208 seconds]), generated less tooth substance loss (4.53 mm3 [95% CI: 3.77-5.30 mm3] vs 2.77 mm3 [95% CI: 2.11-3.43 mm3]), and left behind less composite residue (1.58 mm3 [95% CI: 1.23-1.94 mm3] vs 0.53 mm3 [95% CI: 0.39-0.67 mm3]). Conclusion: Within the limitations of this in vitro study, FIT facilitated the selective and expeditious removal of tooth-colored composites in directly restored posterior teeth. |
| Databáze: | OpenAIRE |
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