Effect of Surface Pretreatments on the Bond Strength and Removal Efficiency of Temporary Restoration

Authors : Ayşe Aslı Şenol, Yasin Özçelik, Özdemir Akı, Elif Alkan, Bilge Tarçın, Pınar Yılmaz Atalı, Dilek Tağtekin
Pages : 281-293
View : 66 | Download : 230
Publication Date : 2025-12-31
Article Type : Research Paper
Abstract :Objectives: To evaluate the effect of temporary restoration and different surface pretreatment methods on the shear bond strength (SBS) of resin cement to dentin surfaces coated with immediate dentin sealing (IDS), and assess the relationship between removal efficiency and SBS. Materials and Methods: Forty extracted human molars were prepared to obtain flat dentin surfaces and IDS was applied. Specimens were randomly assigned into four groups (n=10): air abrasion with silica-coated alumina or polishing using abrasive paste, with and without temporary restoration. In the test groups, temporary restorations were applied, stored in distilled water for 7-days, and removed using dental probe. The surfaces of all specimens were pretreated with either air abrasion or polishing and then restored with a dual-cure resin cement. After thermocycling, SBS was tested. Fluorescence images obtained before and after surface pretreatment were used to quantify residual temporary material and to calculate removal efficiency. Data were analyzed using one-way ANOVA, Tukey’s post hoc, and Pearson’s correlations tests. Results: The mean SBS values of temporary groups were significantly lower than control groups (p<0.05). No significant difference was observed between pretreatment methods. The mean removal efficiency was 72.6±22% for air abrasion and 59.7±34.5% for polishing (p=0.380). A positive correlation existed between removal efficiency and SBS (r=0.83, p<0.01). Conclusion: Temporization significantly reduced the SBS to IDS-applied dentin, regardless of the surface pretreatment method. Both cleaning approaches removed residues effectively but neither restored initial strength. Higher removal efficiency correlated with improved adhesion, emphasizing the importance of effective cleaning after using temporary material.
Keywords : Air-abrazyon, Dental bonding, Geçici diş restorasyonları, Makaslama dayanımı

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