PALATOGINGIVAL GROOVE: AN ENDODONTIC-PERIODONTAL HAZARD
*Dr. Divyangana Vashi, Dr. Prakash Talreja, MDS, Dr. Varsha Rathod, MDS, Dr. Vinayak Thorat and MDS, Dr. Aishwarya Udawant
Introduction: The palatogingival groove (PGG) is a developmental anomaly that predisposes teeth to periodontal breakdown. It is known to promote adherence of plaque and bacteria to levels significant for the development of pathology because of their inconspicuous occurrence and variable extent on tooth root. Many times it gets complicated by pulp necrosis giving rise to a combined endodontic-periodontal lesion. This report presents management of two endodontic-periodontal lesion in lateral incisors that have PGG using a combined endodontic- periodontal approach.
Case no 1:
A 30-year-old male patient reported with a chief complaint of pain and mobility in the maxillary left lateral incisor.
Clinical examination revealed a deep 12mm periodontal pocket & presence of PGG with 22.
Radiograph: Bone loss upto apical third of the root and a radiolucency around the apex.
Diagnosis: Primary periodontal and secondary endodontic lesion was made.
Treatment: Root canal therapy later followed by apicoectomy, guided tissue regeneration surgery and restoration of the PGG.
Case no 2:
A 35-year-old male patient reported with a chief complaint of pain and mobility in the maxillary right lateral incisor. Clinical examination revealed a deep 5.5mm periodontal pocket & presence of PGG with 12.
Radiograph: Interdental bone loss mesially and distally.
Diagnosis: Primary periodontal and secondary endodontic lesion.
Treatment: Root canal therapy, periodontal flap surgery, saucerization of the groove and restoration of the PGG.
Results: In both cases, there was a significant reduction in probing depth and radiograph revealed resolution of periapical infection and slight gain in bone level after 1 year: Early and accurate diagnosis of such developmental anomalies can help the clinician to achieve long-term success.
Keywords: Palatogingival groove, Endodontic-Periodontal Lesion, Maxillary Lateral Incisor, Periodontal Regeneration.
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