Analyzing Tooth Structure in Hypophosphatasia Using Raman Spectroscopy
Author Information
Author(s): Imamura Hayata, Adachi Tetsuya, Zhu Wenliang, Yamamoto Toshiro, Kanamura Narisato, Onoda Hiroaki, Nakamura-Takahashi Aki, Kasahara Masataka, Nakada Masaru, Sato Hideo, Pezzotti Giuseppe, Angelov Borislav, Cirillo Giuseppe
Primary Institution: Kyoto Prefectural University of Medicine
Hypothesis
This study aimed to analyze the crystallinity of hydroxyapatite and the three-dimensional structure of collagen in HPP teeth at the molecular level and to search for new biomarkers of HPP.
Conclusion
HPP primary teeth showed lower hydroxyapatite crystallinity and higher carbonate apatite content compared to healthy teeth, indicating incomplete calcification.
Supporting Evidence
- HPP primary teeth had lower hydroxyapatite crystallinity in the dentin region near the DEJ than healthy ones.
- HPP primary teeth had higher carbonate apatite contents in the same region than healthy ones.
- HPP primary teeth had a higher tissue mineral density than healthy ones.
Takeaway
The study looked at teeth from kids with a bone disease called hypophosphatasia and found that their teeth were not as strong as healthy teeth.
Methodology
Raman spectroscopy, X-ray diffraction, and micro-computed tomography were used to analyze the teeth.
Potential Biases
Potential bias due to the small sample size and the difficulty in obtaining healthy control teeth.
Limitations
The sample size was small due to the rarity of hypophosphatasia, and the study did not consider the influence of cementum.
Participant Demographics
Five primary teeth from HPP patients and five from healthy donors were analyzed.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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