JOURNAL CLUB – pre eruptive coronal resorption

review study

1. JOURNAL CLUB – II PRE‑ERUPTIVE INTRA‑CORONAL RESORPTION OF DENTINE: A REVIEW OF AETIOLOGY, DIAGNOSIS, AND MANAGEMENT O. B. Al‑ Batayneh , E. K.  AlTawashi European Academy of Paediatric Dentistry 2019 Presented by: abhishek JR-I Deptt of endo UNDER THE GUIDANCE OF : Dr. Seema Thakur Dr. Parul Singhal Dr. Deepak Chauhan Dr. Ashish Justa Dr. Archana Sharma

2. INTRODUCTION Pre-eruptive intra-coronal radiolucency/resorption (PEIR) is a term used to describe an anomaly presenting as an abnormal, well-circumscribed, radiolucent area, often occurring within the coronal dentinal tissue close to the amelo -dentinal junction of unerupted teeth The clinical significance of these lesions lies in the fact that they manifest as carious lesions in radiographs of clinically sound, recently erupted permanent teeth of children presenting with a painful molar

3. Prevalence of PEIR defects In general, a subject prevalence between 0.2 and 27.3% and tooth prevalence between 0.2 and 3.5% were reported The prevalence of PEIR may vary depending on factors such as type of radiograph used for assessment, demographic factors, age range included, and dentition stage. Difference in prevalence between different radiographic methods may suggest that radiographs should not be prescribed to screen for PEIR; instead, all panoramic radiographs should be routinely screened, with CBCT when available, for PEIR.

4. No association was found between PEIR defects and race, medical condition, systemic factors, or fluoride supplementation In relation to dentition stage, the prevalence of PEIR defects in the permanent dentition is well known; how ever, in the primary dentition, the prevalence is unknown. The highest prevalence in the mixed dentition stage (89%) as compared to primary and permanent dentition stages possibly due to presence of more unerupted teeth for screening.

5. Characteristics of PEIR defects The clinical appearance of PEIR may vary; in cases where the cavity is uncovered after the tooth is fully erupted, the lesion usually appears relatively empty or filled with a friable material mainly consisting of decomposed dentine . The characteristics of PEIR defects can be discussed in relation to type of teeth affected and jaw predominance, number of defects within the same individual, size of relative to the width of dentine thickness, location within the tooth crown, and association with developmental defects. In all studies, lesions were localised just beneath the amelo -dentinal junction and extended from this area to various depths within dentine. Previous studies suggested an association of PEIR with developmental defects, namely, ectopic positioning, delay in dental development, and supernumerary teeth.

6. Aetiology of PEIR Several explanations for the aetiology of PEIR defects have been proposed in the literature; these include an acquired pathological condition resulting from apical inflammation of primary teeth, dental caries, localised developmental defects of dentine with or without an accompanying enamel defect, and internal or external resorption.