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an organic defect in enamel; a thin, leaflike structure that extends from the enamel surface toward the dentinoenamel junction.
Microscopic cracks or calcification imperfections in the enamel surface of a tooth. They may be shallow or extend into the underlying dentin and occur as a developmental defect or a microfracture caused by temperature change or shearing forces.
See also: lamella
e·nam·el la·mel·la(ĕ-namĕl lă-melă)
Organic defect in enamel; thin, leaflike structure that extends from enamel surface toward dentinoenamel junction.