Crystallography of supragingival and subgingival human dental calculus
Abstract
Selected area electron diffraction of sections and individual crystal fragments of human dental calculus has demonstrated that octacalcium phosphate, hydroxyapatite and whitlockite form the inorganic part of both supragingival and subgingival dental calculus. However, the major constituents in supragingival calculus are platelet-shaped crystals of octacalcium phosphate and needle-shaped crystals of hydroxyapatite, while bulk crystals of whitlockite is the predominant component in subgingival calculus. The subgingival samples seemed to be better crystallized than the supragingival ones. The results obtained by the electron optical and X-ray powder investigations are in good agreement.
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Dental calculus includes a range of calcium phosphate minerals, including apatite, whitlockite, tricalcium phosphate, and octacalcium phosphate.
“Dental calculus includes a range of calcium phosphate minerals, including apatite, Whitlockite, tricalcium phosphate, and octacalcium phosphate [92–95].”
From A Review of Phosphate Mineral Nucleation in Biology and Geobiology (2013) · cites this paper as [95]
The predominant mineral in subgingival calculus is whitlockite, although hydroxyapatite has been found.
“The predominant mineral is whitlockite, although hydroxyapatite has been found (47).”
From Dental calculus: the calcified biofilm and its role in disease development (2018) · cites this paper as [47]
The predominant mineral in exterior layers of supragingival calculus is octacalcium phosphate, while hydroxyapatite is dominant in the inner layers of old calculus.
“The predominant mineral in exterior layers is octacalcium phosphate, while hydroxyapatite is dominant in the inner layers of old calculus.”
From Dental calculus: the calcified biofilm and its role in disease development (2018) · cites this paper as [47]
Whitlockite is only found in small proportions in supragingival calculus.
“Whitlockite is only found in small proportions (47).”
From Dental calculus: the calcified biofilm and its role in disease development (2018) · cites this paper as [47]
Cites
Formation and Inhibition of Dental Calculus
Schroeder, H. E., & Shanley, D. (1969) · Journal of Periodontology-Periodontics · doi:10.1902/jop.1969.40.11.643 · Cited by 209 · see citing works
Grøn, P., van Campen, G. J., & Lindstrom, I. (1967) · Archives of Oral Biology · doi:10.1016/0003-9969(67)90105-7 · Cited by 58 · see citing works
Crystallography of Dental Calculus and the Precipitation of Certain Calcium Phosphates
Jensen, A. T., & Danø, M. (1954) · Journal of Dental Research · doi:10.1177/00220345540330060201 · Cited by 58 · see citing works
Microbeam X-ray Diffraction Analysis of Dental Calculus
Kani, T., Kani, M., Moriwaki, Y., & Doi, Y. (1983) · Journal of Dental Research · doi:10.1177/00220345830620021901 · Cited by 54 · see citing works
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Dental calculus: the calcified biofilm and its role in disease development
Akcalı, A., & Lang, N. P. (2018) · Periodontology 2000 · doi:10.1111/prd.12151 · Cited by 155 · see citing works
A Review of Phosphate Mineral Nucleation in Biology and Geobiology
Omelon, S., Ariganello, M., Bonucci, E., Grynpas, M., & Nanci, A. (2013) · Calcified Tissue International · doi:10.1007/s00223-013-9784-9 · Cited by 84 · see citing works
Subgingival calculus: where are we now? A comparative review.
Roberts-Harry, E. A., & Clerehugh, V (2000) · Journal of Dentistry · doi:10.1016/s0300-5712(99)00056-1 · Cited by 80 · see citing works
- Authors
- SUNDBERG, M., & FRISKOPP, J.
- Affiliations
- Stockholm University (SE)
- Karolinska Institutet (SE)
- Corresponding author
- FRISKOPP, JOHAN
- Venue
- European Journal of Oral Sciences
- Publisher
- Wiley
- Published
- 1985-02
- Volume
- 93
- Issue
- 1
- Pages
- 30-38
- ISSN
- 0029-845X (ISSN-L)
- 0909-8836
- 1600-0722
- OpenAlex
- W2076497115
- Cited by
- 20
- References
- 4
- Citations by year
- 2026: 1 · 2024: 1 · 2021: 1 · 2017: 2 · 2016: 1 · 2013: 1 · 2012: 1
- FWCI
- 0.00
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- European Journal Of Oral Sciences (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Health Sciences › Dentistry › Periodontics › Oral microbiology and periodontitis research
- Health Sciences › Medicine › Rheumatology › Bone and Dental Protein Studies
- Health Sciences › Medicine › Urology › Periodontal Regeneration and Treatments
- Keywords
- dental calculus, supragingival calculus, subgingival calculus, octacalcium phosphate, hydroxyapatite, whitlockite, crystal morphology, crystallography, inorganic matrix
- MeSH terms
- Calcium Phosphates, Crystallization, Crystallography, Dental Calculus, Gingiva, Humans, Hydroxyapatites, Microscopy, Electron, X-Ray Diffraction, Durapatite
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