Human cementum tumor cells have different features from human osteoblastic cells in vitro.

@article{Arzate1998HumanCT,
  title={Human cementum tumor cells have different features from human osteoblastic cells in vitro.},
  author={Higinio Arzate and Marco Antonio {\'A}lvarez-P{\'e}rez and M E Aguilar-Mendoza and Octavio {\'A}lvarez-Fregoso},
  journal={Journal of periodontal research},
  year={1998},
  volume={33 5},
  pages={
          249-58
        }
}
Cells obtained from human cementoblastoma and alveolar bone were isolated and cultured. Initial and late stages of mineralization were assessed by using atomic force microscopy, scanning electron microscopy and X-ray microanalysis. In cultures of cementoblastoma-derived cells the initial stages of mineralization showed well-defined spherical-shaped structures, while the osteoblastic cells showed plaque-like deposits. These morphological patterns of mineral deposition could serve as nucleation… 
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TLDR
It is suggested that cells derived from bone can express in vitro the phenotype for the cementums, and that cells obtained from human gingival and rat periodontal ligament do not do so when cultured under similar conditions, and the possibility that the osteoblasts, cementoblasts and their progenitors that are found in the periodonta ligament could have their origin and migrate there from the endosteal spaces of the alveolar process.
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TLDR
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TLDR
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TLDR
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TLDR
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TLDR
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