ArticleSupportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer2024
Effect of radiotherapy on the surface roughness and microhardness of contemporary bioactive restorative materials.
Article in Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Effect of photon radiotherapy on microleakage and microhardness of nanohybrid resin composite restoration: an in vitro study.BMC oral health · 2026Article
- Effect of fractionated therapeutic radiotherapy on surface microhardness and roughness of giomer- and ormocer-based restorative composites: an in vitro study.Scientific reports · 2026Article
- Damage of irradiated teeth by ultrasonic scaling: an in vitro study.Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer · 2026Article
- Evaluation of pediatric drugs on the surface roughness of primary enamel and restorative materials: an in vitro study.BMC oral health · 2026Article
- The Importance of Dental Treatment in Patients Before Radiotherapy, Chemotherapy, and Cardiac Surgeries: A Narrative Review.Journal of clinical medicine · 2025Review
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Abstract
objectiveThe aim of this in vitro study was to evaluate the effect of radiotherapy on the surface microhardness and roughness of different bioactive restorative materials. MATERIALS AND
methodsA total of 60-disc specimens (5 mm × 2 mm) were performed in four groups (n = 15 each) from Equia Forte HT, Cention N, Activa Bioactive Restorative, and Beautifil II. Following the polishing procedure (600, 1000, 1200 grit silicon carbide papers), all specimens were irradiated at 2 Gy per fraction, five times a week for a total dose of 70 Gy in 30 fractions over 7 weeks. Before and after the irradiation, the specimens were analyzed regarding the surface roughness and microhardness. Surface morphology was also analyzed by scanning electron microscopy. Kruskal-Wallis test, Wilcoxon test, and paired sample t-test were used for statistical analysis.
resultsSignificant differences were found after radiation with increased mean roughness of both Cention N (p = 0.001) and Beautifil II (p < 0.001) groups. In terms of microhardness, only the Beautifil II group showed significant differences with decreased values after radiation. There were statistically significant differences among the groups' roughness and microhardness data before and after radiotherapy (p < 0.05).
conclusionThe effect of radiotherapy might differ according to the type of the restorative material. Although results may differ for other tested materials, giomer tends to exhibit worse behaviour in terms of both surface roughness and microhardness. CLINICAL RELEVANCE: In patients undergoing head and neck radiotherapy, it should be taken into consideration that the treatment process may also have negative effects on the surface properties of anti-caries restorative materials.
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