Multiple assessment of molars with hypercementosis lost due to periodontitis using X-ray micro-computed tomography, electron microprobe analysis, and histological sections

Kato, Akira; Naitoh, Munetaka; Inagaki, Koji; Yamamoto, Genta; Ariji, Eiichiro; Mitani, Akio; Honda, Masaki

doi:10.1016/j.job.2022.02.003

Cited by 1 publication

(2 citation statements)

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“…Traumatic occlusion is an important external factor proposed to induce a CeT [1]. Similarly, hypercementosis is reported to be caused by traumatic occlusion together with ageing, inflammation, systemic disease and periodontal disease [30]. Considering that this patient was only aged in her 50s, had no systemic history and had been undergoing SPT, sustained occlusal loading might have induced the hypercementosis.…”

Section: Discussionmentioning

confidence: 99%

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Unusual imaging appearance of cemental tear in the maxillary first molar on cone‐beam computed tomography: A case report

Kuwada,

Kikuchi,

Kato

et al. 2023

Aust Endodontic J

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A cemental tear (CeT) is a definitive clinical entity and its radiographic appearance is well known in single‐rooted teeth. However, the imaging features of CeT in multi‐rooted teeth have not been clarified. We report a case of CeT which arose in the maxillary first molar and exhibited an unusual appearance in cone‐beam computed tomography images. The torn structure was verified as cementum by micro‐computed tomography and histological analysis. The hypercementosis, most likely induced by occlusal force, might have been torn from the root by a stronger occlusal force caused by the mandibular implant. An unusual bridging structure was created between the two buccal roots. These features may occur in multi‐rooted teeth with long‐standing deep pockets and abscesses that are resistant to treatment.

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Section: Discussionmentioning

confidence: 99%

“…The histopathological specimens and μ‐CT images, which could differentiate the cementum from dentin [30], verified that the bridging structure was composed of cemental components. Therefore, this characteristic feature was verified to be a result of CeT.…”

Section: Discussionmentioning

confidence: 99%