Treatment of caries affected dentin with different photosensitizers and its adhesive bond integrity to resin composite

Photodiagnosis and Photodynamic Therapy
Ali AlrahlahHaroon Rashid

Abstract

The aim of the present study was to evaluate the effect of different photosensitizers activated by photodynamic therapy (PDT) on shear bond strength (SBS) of composite resin on caries affected dentin compared to conventional cavity disinfectants. Forty carious mandibular teeth were collected through non-traumatic extraction. All samples were embedded in polyvinyl cross-sections to the cemento-enamel junction. The preparation of caries-affected dentin was performed by grinding the specimens using silicon carbide discs. All specimens were arbitrarily allocated in to four groups (n = 10). Group 1, affected dentin disinfected with methylene blue (MB) [100 mg/L]; Group 2, caries affected dentin disinfected using curcumin photosensitizer (CP) [500 mg/L]; Group 3, affected dentin disinfected with indocyanin green photosensitizer (ICGP) [0.5 ml] Group 4, affected dentin treated with 3% H2O2. Two-step self-etch adhesives was smeared on all specimens for 15 sec and photopolymerized for 10 sec. All specimens were placed in an incubator with humid environment for 24 hours at 37 °C followed by positioning in universal testing machine for SBS testing. Failure mode examination of debonded samples was performed by a stereomicroscope. Analysis ...Continue Reading

Citations

Dec 12, 2020·Photodiagnosis and Photodynamic Therapy·Khalid AlmadiSaud Mohammed Bin Thafrah
Jun 22, 2021·Photodiagnosis and Photodynamic Therapy·Fayez Hussain NiaziOmar Bandar Al Dossary
Jun 6, 2021·International Endodontic Journal·David EdwardsHal Duncan
Dec 6, 2021·European Journal of Oral Sciences·Meltem Tekbas AtayArzu Tezvergil-Mutluay

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