Effect of Radiotherapy on the Mechanical and Chemical structure of Primary teeth enamel: In-Vitro study
Adel, M., Shouman, T., Ashour, M., Wassef, N. (2025). Effect of Radiotherapy on the Mechanical and Chemical structure of Primary teeth enamel: In-Vitro study. EKB Journal Management System, 71(2), 1091-1099. doi: 10.21608/edj.2025.351370.3333
Mai Adel; Tarek Shouman; May Ashour; Nada Wassef. "Effect of Radiotherapy on the Mechanical and Chemical structure of Primary teeth enamel: In-Vitro study". EKB Journal Management System, 71, 2, 2025, 1091-1099. doi: 10.21608/edj.2025.351370.3333
Adel, M., Shouman, T., Ashour, M., Wassef, N. (2025). 'Effect of Radiotherapy on the Mechanical and Chemical structure of Primary teeth enamel: In-Vitro study', EKB Journal Management System, 71(2), pp. 1091-1099. doi: 10.21608/edj.2025.351370.3333
Adel, M., Shouman, T., Ashour, M., Wassef, N. Effect of Radiotherapy on the Mechanical and Chemical structure of Primary teeth enamel: In-Vitro study. EKB Journal Management System, 2025; 71(2): 1091-1099. doi: 10.21608/edj.2025.351370.3333

Effect of Radiotherapy on the Mechanical and Chemical structure of Primary teeth enamel: In-Vitro study

Egyptian Dental Journal
Volume 71, Issue 2 - Serial Number 1, April 2025, Page 1091-1099  XML PDF (747.76 K)
Document Type: Original Article
DOI: 10.21608/edj.2025.351370.3333
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Authors
Mai Adel email orcid 1; Tarek Shoumanorcid 2; May Ashourorcid 3; Nada Wasseforcid 4
1Dentist in Pediatric Dentistry Department, Police Academy Hospital, Ministry of Interior Affairs, Cairo, Egypt and Post Graduate Student, Pediatric Dentistry and Dental Public Health Department, Faculty of Dentistry, Cairo University, Cairo, Egypt.
2Professor of Oncology and Nuclear Medicine and Head of Radiotherapy Department, National Cancer Institute, Cairo University, Cairo, Egypt
3Associate Professor of Oncology and Nuclear Medicine, National Cancer Institute, Cairo University, Cairo, Egypt
4Associate Professor of Pediatric Dentistry and Dental Public Health, Faculty of Dentistry, Cairo University, Cairo, Egypt
Abstract
Abstract:
Aim: This study aimed to assess the dental complications associated with radiotherapy in primary molars treated like oncological pediatric head and neck patients receiving irradiation treatment.
Methods: Five primary molars were selected and assessed for microhardness, Energy Dispersive X-ray Analysis (EDXA), and Environmental Scanning Electron Microscopy (ESEM). The molars were then embedded in acrylic blocks exposing the buccal surfaces. The molars were subjected to pediatric Hodgkin lymphoma radiotherapy regimen. The same tests were conducted to assess the mechanical and chemical structure after irradiation.
Results: Radiotherapy treatment led to a decrease in surface microhardness and a reduction in the levels of phosphorus and fluoride within the enamel. However, there were no significant alterations in calcium (Ca) content or the Ca/P ratio of the enamel. Additionally, notable superficial morphological changes in the enamel were observed following irradiation.
Conclusion: Radiotherapy negatively impacts the microhardness, chemical composition, and surface microstructure of the enamel in primary teeth.
Keywords
Keywords: Pediatric head and neck cancer; Radiotherapy; Vickers microhardness; EDXA; ESEM
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