Does a black light lens aid in composite removal?

Autor: Teer KR; College of Dentistry, University of Tennessee Health Science Center, Memphis, Tennessee, USA., Kisling AC; College of Dentistry, University of Tennessee Health Science Center, Memphis, Tennessee, USA., Tantbirojn D; Department of General Dentistry, College of Dentistry, University of Tennessee Health Science Center, Memphis, Tennessee, USA., Callahan WR 3rd; Department of General Dentistry, College of Dentistry, University of Tennessee Health Science Center, Memphis, Tennessee, USA., Nordin JS; Department of General Dentistry, College of Dentistry, University of Tennessee Health Science Center, Memphis, Tennessee, USA., Levey BJ; Department of General Dentistry, College of Dentistry, University of Tennessee Health Science Center, Memphis, Tennessee, USA., Versluis A; Department of Bioscience Research, College of Dentistry, University of Tennessee Health Science Center, Memphis, Tennessee, USA.
Jazyk: angličtina
Zdroj: Journal of esthetic and restorative dentistry : official publication of the American Academy of Esthetic Dentistry ... [et al.] [J Esthet Restor Dent] 2023 Sep; Vol. 35 (6), pp. 980-986. Date of Electronic Publication: 2023 Mar 01.
DOI: 10.1111/jerd.13030
Abstrakt: Objective: To evaluate the effectiveness of a black light lens as visual aid in composite restoration removal. Lost tooth structure, residual composite, and removal time were compared for operators with different levels of experience.
Methods: Occlusal preparations in 24 matched-pair extracted molars were etched, bonded, restored with composite, and thermocycled. The restored teeth were radiographed and two faculty and two student doctors removed the restorations with or without a black light lens while time was recorded. Digital scans of the cavity before and after restoration removal were used to calculate lost tooth structure and residual composite.
Results: Removal of restorations resulted in tooth structure loss and left residual composite. The use of the black light lens had no significant effect (two-way ANOVA; p value >0.05). However, operator experience significantly affected operating times and average depth of tooth structure loss (two-way ANOVA; p value <0.05). Student doctors assisted by the black light lost less tooth structure than experienced operators and improved their operating times (multiple comparisons; p value <0.05).
Conclusions: The black light lens did not conserve tooth structure or avoid composite remnants compared to routine operation, nor affected the operating time. However, less-experienced operators did benefit from the black light in conserving tooth structure and time.
Clinical Significance: Replacement of defective composite restorations is a regular practice in restorative dentistry. When existing composite restorations are removed, loss of tooth structure is unavoidable. A black light lens might improve the ability of operators with less experience to conserve tooth structure even though it did not provide benefits for the experienced operators.
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Databáze: MEDLINE
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