PMID- 36933029
OWN - NLM
STAT- MEDLINE
DCOM- 20230518
LR  - 20230620
IS  - 1432-2099 (Electronic)
IS  - 0301-634X (Linking)
VI  - 62
IP  - 2
DP  - 2023 May
TI  - Effects of direct therapeutic radiation on pulpal surface of root dentin: an in 
      vitro study.
PG  - 261-268
LID - 10.1007/s00411-023-01020-9 [doi]
AB  - The aims of the study were to analyze the effects of therapeutic radiation on 
      human root dentin samples from the aspect of possible alterations in 
      crystallinity, micro-morphology, and composition. Fifty-six root dentin specimens 
      were divided into seven groups (0, 10, 20, 30, 40, 50, and 60 Gy). Scanning 
      electron microscope (SEM), energy-dispersive X-ray spectroscopy (EDX) and X-ray 
      diffraction (XRD) analyses were performed on pulpal surfaces of root dentin after 
      being irradiated by 6MV photon energy. Mineral compositions, Ca/P, P/N, Ca/N 
      ratios, and hydroxyapatite pikes were calculated. Some deuteriations on the 
      dentin surface were observed in SEM images after 30 Gy and subsequent doses. 
      One-way ANOVA revealed that there was no significant alteration in weight 
      percentages of C, O, Mg, Ca, P, and N between groups. Radiation did not influence 
      stoichiometric Ca/P, Ca/N, and P/N molar ratios. XRD analysis did not show a 
      remarkable decline in hydroxyapatite pikes by the increasing doses. Radiotherapy 
      changes the micromorphology of circumpulpal dentin but does not affect elemental 
      composition and crystallinity.
CI  - (c) 2023. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, 
      part of Springer Nature.
FAU - Deniz, Yesim
AU  - Deniz Y
AUID- ORCID: 0000-0002-6967-5378
AD  - Department of Dentomaxillofacial Radiology, Faculty of Dentistry, Canakkale 
      Onsekiz Mart University, Sahil Yolu Street, No: 5, Canakkale, 17100, Turkey. 
      yesimdeniz@comu.edu.tr.
FAU - Isiktas Acar, Ezgi
AU  - Isiktas Acar E
AUID- ORCID: 0000-0001-8225-3367
AD  - Department of Medical Physics, Trakya University, Edirne, 22030, Turkey.
FAU - Cetin Genc, Cigdem
AU  - Cetin Genc C
AD  - Department of Dentomaxillofacial Surgery, Faculty of Dentistry, Canakkale Onsekiz 
      Mart University, Canakkale, 17100, Turkey.
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20230318
PL  - Germany
TA  - Radiat Environ Biophys
JT  - Radiation and environmental biophysics
JID - 0415677
RN  - 0 (Minerals)
RN  - 0 (Hydroxyapatites)
SB  - IM
MH  - Humans
MH  - *Dentin/chemistry/radiation effects
MH  - *Minerals
MH  - Hydroxyapatites/analysis
OTO - NOTNLM
OT  - Head and neck neoplasms
OT  - Mouth neoplasms
OT  - Radiobiology
OT  - Radiotherapy
OT  - Tooth
EDAT- 2023/03/19 06:00
MHDA- 2023/05/18 06:42
CRDT- 2023/03/18 12:13
PHST- 2022/02/14 00:00 [received]
PHST- 2023/02/27 00:00 [accepted]
PHST- 2023/05/18 06:42 [medline]
PHST- 2023/03/19 06:00 [pubmed]
PHST- 2023/03/18 12:13 [entrez]
AID - 10.1007/s00411-023-01020-9 [pii]
AID - 10.1007/s00411-023-01020-9 [doi]
PST - ppublish
SO  - Radiat Environ Biophys. 2023 May;62(2):261-268. doi: 10.1007/s00411-023-01020-9. 
      Epub 2023 Mar 18.