Int J Dent Case Reports 2012; 2(3):48-53 © IJDCR 2012. All rights reserved www.ijdcr.com CASE REPORT MANAGEMENT OF PERIODONTAL LESION ASSOCIATED WITH TRAUMATIC DEEP BITE: A CASE REPORT Anika Daing 1 , Aparna Singh 2 , Jaya Dixit 3 , Vishal Anand 4 1 Senior Resident, Department of Periodontics, Faculty of Dental Sciences, C.S.M.M.U. (erstwhile KGMC), Lucknow, Uttar Pradesh, India-226003 2 Senior Resident, Department of Periodontics, Faculty of Dental Sciences, C.S.M.M.U. (erstwhile KGMC), Lucknow, Uttar Pradesh, India-226003 3 Professor & Head, Department of Periodontics, Faculty of Dental Sciences, C.S.M.M.U. (erstwhile KGMC), Lucknow, Uttar Pradesh, India-226003 4 Senior Resident, Department of Periodontics, Faculty of Dental Sciences, C.S.M.M.U. (erstwhile KGMC), Lucknow, Uttar Pradesh, India-226003 Address for Correspondence Dr Anika Daing Senior Resident , Department of Periodontics Faculty of Dental Sciences C.S.M.M.U. (Erstwhile KGMC) Lucknow, Uttar Pradesh, India-226003 Email: anika_doc@yahoo.com Contact No.: 09889652506 ABSTRACT Introduction: Malocclusion like deep overbite is now recognized as potential contributors to the periodontal disease process when they cause occlusal traumatism. Case report: The present report illustrates a case where increased occlusal forces due to traumatic deep bite had led to a combined periodontal lesion consisting of dehiscence and lateral periradicular defect in relation to right maxillary central incisor. This lesion appeared on radiograph as a lateral circumscribed radiolucency, remote from alveolar crest and close to apex. T-scan III ® , a computerized occlusal analysis system was used for diagnosis of increased occlusal forces. Regenerative periodontal surgery was performed for the resolution of periodontal defect. Discussion: The lesion was aggravated by trauma is established from the fact that a localized pocket was present on buccal aspect of right maxillary central incisor, with no interproximal bone loss in relation to aforementioned tooth. Additionally, occlusal analysis by T scan also confirmed highest amount of occlusal force on right maxillary central incisor. Conclusion: An association between deep overbite and a discrete lateral periodontal defect was observed. Surgical periodontal regenerative treatment by collagen membrane and hydroxyapatite graft led to complete resolution of the lesion. Key words: deep overbite; occlusal trauma; root dehiscence; bone graft