Abstract
Pre-Eruptive Intracoronal Resorption: The Hidden Truth
Highlights
pre-eruptive intra-coronal resorption (PEIR) is an anomaly presenting as an abnormal, well circumscribed, radiolucent area, often occurring in the coronal dentin adjacent to the amelo-dentin junction of unerupted teeth [1-3] Most PEIR’s are often detected as incidental findings in routine dental radiographs [4]
Aim: To evaluate the prevalence of pre-eruptive intra-coronal resorption (PEIR) in unerupted permanent teeth using a whole slew of panoramic radiographs of Chennai residents
PEIR can have three etiological factors (1) Chronic apical inflammation of primary teeth affecting the erupting successor, dental caries [10, 11, 12]; (2) Developmental mineralization defect of dentine [13, 12]; (3) Resorption superimposed on existing developmental defects [10-14] The conventional theory describes the lesion as an idiopathic external resorption of coronal dentin; resorptive cells originating from the surrounding connective tissue or bone penetrating the developing tooth through a breach in the reduced enamel epithelium and cause dentin resorption [13, 15, 16]
Summary
PEIR is an anomaly presenting as an abnormal, well circumscribed, radiolucent area, often occurring in the coronal dentin adjacent to the amelo-dentin junction of unerupted teeth [1-3] Most PEIR’s are often detected as incidental findings in routine dental radiographs [4]. A single tooth is affected, cases involving several teeth have been reported [9]. PEIR can have three etiological factors (1) Chronic apical inflammation of primary teeth affecting the erupting successor, dental caries [10, 11, 12]; (2) Developmental mineralization defect of dentine [13, 12]; (3) Resorption superimposed on existing developmental defects [10-14] The conventional theory describes the lesion as an idiopathic external resorption of coronal dentin; resorptive cells originating from the surrounding connective tissue or bone penetrating the developing tooth through a breach in the reduced enamel epithelium and cause dentin resorption [13, 15, 16]. The prevalence of PEIR is of 3-6% of the patients and in 0.5-2% 0f the teeth [16, 18, 19]
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