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Disorders of Dental Hard Tissues Induced by Radioiodine-131 (I-131) Therapy Used in Differentiated Thyroid Cancer: An In Vitro Study
被引:3
|作者:
Mester, Alexandru
[1
]
Piciu, Andra
[2
]
Piciu, Doina
[3
]
Petean, Ioan
[4
]
Lucaciu, Patricia Ondine
[1
]
Apostu, Dragos
[5
]
Moisescu-Goia, Cristina
[3
]
Voina-Tonea, Andrada
[6
]
Moldovan, Marioara
[7
]
机构:
[1] Univ Med & Pharm Iuliu Hatieganu, Dept Oral Hlth, Cluj Napoca 400012, Romania
[2] Univ Med & Pharm Iuliu Hatieganu, Dept Med Oncol, Cluj Napoca 400012, Romania
[3] Univ Med & Pharm Iuliu Hatieganu, Oncol Inst Ion Chiricuta, Dept Endocrine Tumors & Nucl Med, Cluj Napoca 400012, Romania
[4] Univ Babes Bolyai, Fac Chem & Chem Engn, Cluj Napoca 400294, Romania
[5] Univ Med & Pharm Iuliu Hatieganu, Dept Orthoped, Cluj Napoca 400012, Romania
[6] Univ Med & Pharm Iuliu Hatieganu, Dept Dent Mat, Cluj Napoca 400012, Romania
[7] Univ Babes Bolyai, Inst Chem Raluca Ripan, Dept Polymer Composites, Cluj Napoca 400294, Romania
来源:
关键词:
oral disease;
differentiated thyroid cancer;
radioiodine therapy;
dental hard tissue;
RADIOACTIVE IODINE;
ENAMEL;
TEETH;
MICROHARDNESS;
D O I:
10.3390/biomedicines8110475
中图分类号:
Q5 [生物化学];
Q7 [分子生物学];
学科分类号:
071010 ;
081704 ;
摘要:
This study aimed to evaluate, in vitro, the effects of I-131 on enamel and dentin in healthy human incisive permanent maxillary teeth. Our in vitro model analogue with the in vivo conditions of differentiated thyroid carcinoma patients treated with I-131, consisted in a solution of I-131 dissolved in artificial saliva. A total of 48 teeth were divided into eight groups (n = 6): control, irradiation groups at 3, 6, 12, 24, 36, 48, and 192 h, respectively. At the end of radiation exposure, radioiodine activity of specimens was assessed. Fine microstructure, nanostructure, surface roughness, and hidroxyapatite (HAP) crystallite diameter were investigated by atomic force microscopy (AFM) to both enamel and dentin structures. There is a constant increase of radioactivity in dental structures at 3, 6, 12, 24 h, due to progressive retention and I-131 migration, with a maximum at 36 h. Enamel showed notable alterations, which was correlated with the increase of the treatment time. A relevant visible distance between the HAP prisms was observed after 24 h. The surface suffered a loss in its compact structure. I-131 acts in the same way on HAP crystallites in dentin as in those in enamel. It was noticed that their morpho-dimensional changes occurred only after 12 h of treatment. Radioiodine-131 determines degradation of enamel and dentin by starting from the alteration of the crystalline network of HAP prisms, transforming them from compact materials into an agglomeration of rocky submicron structures.
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页码:1 / 10
页数:10
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