Premium
A study of the mineral phase of cementifying fibroma
Author(s) -
Aoba Takaaki,
Yoshioka Chihiro,
Ogawa Yuzo,
Yagi Toshio
Publication year - 1978
Publication title -
journal of oral pathology and medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.887
H-Index - 83
eISSN - 1600-0714
pISSN - 0904-2512
DOI - 10.1111/j.1600-0714.1978.tb01591.x
Subject(s) - cementum , apatite , thermogravimetric analysis , mineral , differential thermal analysis , crystallinity , chemistry , fibroma , materials science , mineralogy , anatomy , diffraction , dentin , medicine , crystallography , composite material , organic chemistry , optics , physics
Physico‐chemical study of a case of cementifying fibroma in the mandible of 78‐year‐old woman was carried out by X‐ray diffraction analysis and thermogravimetric and differential‐thermal analyses (TGA‐DTA). The center of the tumor consisted of masses of acellular cementum‐like tissues, while the periphery consisted of cementicle‐like tissues. X‐ray powder diffraction patterns showed that the mineral phase of these tissues was apatitic in nature. X‐ray line broadening analysis revealed that the crystallinity of apatite of the cementum‐like tissue was higher than that of apatite of cementicle‐like tissue, and lower than that of bone apatite obtained from the same patient. Furthermore, TGA‐DTA studies showed that the mineral (ash) value of cementum‐like tissue was slightly higher than that of bone.