Topographic Distribution of Carious Lesion on Young Permanent Mandibular Molars and Its Relation to Periapical Index Score of Apical Periodontitis: A Radiographic Analysis

INTRODUCTION: Caries in young permanent teeth progress rapidly resulting early pulp involvement which further progresses into loss of mineralized tissue and severe periapical pathologies. The Periapical Index scoring system (PAI) proposed by Ørstavik et al. 1986 is an invaluable diagnostic tool used to evaluate lesion extent severity 2D digital intraoral radiographic analysis with minimal radiation exposure hence treatment planning.AIM: To the relationship surface distribution caries molars, pulpal index score respect individual root forming mandibular molars. MATERIALS AND METHOD: In this retrospective single-centre study, 100 pulpally involved carious molars were included, selected from departmental records between August 2018-2019. Topographic (using PAI) was evaluated see effect anatomical site caries, form root, & apical periodontitis developed.RESULT: No significant correlation PAI observed. for distal roots higher(PAI> 2) as compared mesial first (p-value root-0.576 , root-0.591)CONCLUSION: independent topographic no radiolucency does not depend on distribution, either it mesial, or occlusal.