Effect of Diode Laser Treatment and Nano-Desensitizing Agent on Degree of Tubular Occlusion

Gouda, Salma Raafat; Fahmy, Ola; Gomaa, Hussein; Abd El-Hamid, Mohamed; EL-Asaly, Passant

doi:10.21608/jfcr.2021.211092

Effect of Diode Laser Treatment and Nano-Desensitizing Agent on Degree of Tubular Occlusion "In Vitro Study"

Document Type : Original research articles

Authors

¹ operative dentistry department, Post graduate Researcher, Faculty of Oral and Dental Medicine, Misr International University, Cairo, Egypt.

² Operative Dentistry Department, Faculty of Oral and Dental Medicine, Misr International University, Cairo, Egypt.

³ Operative Dentistry Department, Faculty of Oral and Dental Medicine, Cairo University, Cairo, Egypt.

10.21608/jfcr.2021.211092

Abstract

Background:Dentin Hypersensitivity is a common dental problem affecting a huge section of every population that doesn’t have a permanent treatment yet. Aim: The purpose of this study is to compare the effect of Diode laser (940nm) and Nano-desensitizing agent on the degree of tubular occlusion compared to the conventional fluoride varnish for the treatment of dentin hypersensitivity. Materials and methods: Twenty dentin specimens were prepared from extracted human premolars. Dentin specimens will be randomly allocated in 4 groups (n=5) according to desensitizing agent used: D₁ (Diode Laser (940nm), D₂ (Nano-hydroxyapatite), D₃ (Diode Laser + Nano-hydroxyapatite) and D₄ (Fluoride). The specimens will be treated with EDTA for 2 mins to open dentinal tubules simulating Dentin Hypersensitivity. Each specimen will be evaluated at 3 different times: T₀ (before material application), T₁ (after material application) and T₂ (after acid attack) using Environmental Scanning Electron Microscope and Image Analysis software to detect degree of occlusion of dentinal tubules. Results: Group D₃ showed statistically significant tubular occlusion percentagecompared to the other groups except group D₁. After acid attack group D₃were the only group that showed non-statistically significant decrease in tubular occlusion percentage denoting the best resistance to acid attack, while other groups were drastically affected by the acid attack. Conclusion: Combining DL (940nm) and Nano-hydroxyapatite could be a successful treatment option for Dentin Hypersensitivity, due to its high degree of tubular occlusion effect and sustainability in the acidic environment.

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