The microstructure of normal and sclerosed dentine

Age-related transparent root dentin: mineral concentration, crystallite size, and mechanical properties

“…Of importance is whether this increase in mineral concentration is due only to the closure of the tubule lumens, or whether there is an additional accretion of mineral into the intertubular dentin matrix, as had been suggested in the past [19]. It is likely that the majority, if not all, of the increased mineral concentration is due to the closure of the tubule lumens.…”

“…Specifically, the tubules are filled with a mineral phase; this filling is most likely a passive chemical precipitation [16,17]. It is not clear whether the increased mineralization associated with transparency is entirely a result of the filling of the tubule lumens, or whether there are any additional alterations in the mineralization of the intertubular dentin matrix [18,19].…”

Double dye technique and fluid filtration test to evaluate early sealing ability of an endodontic sealer

“…This phenomenon, described in the past as Bbutterfly effect [47][48][49], is due to the dentinal tubular sclerosis that differs in the mesio-distal and bucco-lingual direction [50,51]. Root sections with the butterfly effect have a lower density of tubules in mesio-distal direction, corresponding to the wings of the butterfly [49].…”

A transmission electron microscopy study of mineralization in age-induced transparent dentin

“…Dentin transparency thus is a commonly observed pathology in aged teeth, but it is unclear if the increased mineralization is from the filling of the tubule lumens [2], or whether there are any additional alterations in the mineralization of the intertubular dentin matrix [6,7]. Our previous work using small-angle X-ray scattering (SAXS) revealed a slightly lower mineral crystallite size in transparent dentin, as compared to normal dentin [8].…”