"Minimally Invasive Treatment of a Type II Palatogingival Groove Detected at an Early Stage: A Case Report"`
DOI:
https://doi.org/10.53274/IJCRD.2026.7104Keywords:
- Palatogingival groove, Endo-Perio lesion, Saucerization, CBCT
Abstract
Background:
The palatogingival groove (PGG) is a developmental anomaly that may cause localised periodontal destruction, encourage plaque accumulation and increase risk of dental caries and endodontic involvement.
Aims:
This case report describes early detection and minimally invasive management of a Type II PGG in a maxillary lateral incisor, highlighting the diagnostic value of cone-beam computed tomography (CBCT).
Materials and Methods:
A 19-year-old patient presented with gingival bleeding and sensitivity on the maxillary left lateral incisor. CBCT revealed a groove extending from the cingulum into the middle third of the root (depth 1.7 mm). Treatment included flap reflection, saucerisation of the groove, root-surface conditioning with 24% EDTA gel, and sealing with resin-modified glass-ionomer cement.
Results:
At the 6-month follow-up, gingival inflammation resolved, bleeding ceased and tooth vitality remained intact
Downloads
References
1. Lee KW, Lee EC, Poon KY. Palato-gingival grooves in maxillary incisors. A possible predisposing factor to localised periodontal disease. Br Dent J 1968;124:14- 18.
2. Kogon SL. The prevalence, location and conformation of palato-radicular grooves in maxillary incisors. J Periodontol 1986;57:231-234.
3. Everett FG, Kramer GM. The distolingual groove in the maxillary lateral incisor: a periodontal hazard. J Periodontol 1972;43:352–61.
4. Withers JA, Brunsvold MA, Killoy WJ, Rahe AJ. The relationship of palato-gingival grooves to localized periodontal disease. J Periodontol 1981;52:41–4.
5. Goon WW,Carpenter WM, Brace NM, Ahlfeld RJ. Complex facial radicular groove in a maxillary lateral incisor. J Endod 1991;17:244–8.
6. Gu YC. A micro-computed tomographic analysis of maxillary lateral incisors with radicular grooves. J Endod 2011;37:789-792.
7. Attam K, Tiwary R, Talwar S, Lamba AK. Palatogingival groove: endodontic- peri odontal management–case report. J Endod 2010;36:1717–20.
8. Kim HJ, Choi Y, Yu MK, Lee KW, Min KS. Recognition and management of palatogingival groove for tooth survival: a literature review. Restor Dent Endod. 2017;42:77–86.
9. Lara VS, Consolaro A, Bruce RS. Macroscopic and microscopic analysis of the palato-gingival groove. J Endod 2000;26:345–50.
10. 11. Peikoff MD, Perry JB, Chapnick LA. Endodontic failure attributable to a complex radicular lingual groove. J Endod 1985;11:573–7.
11. 15. Al-Hezaimi K, Naghshbandi J, Simon JH, et al. Successful treatment of a radicular groove by intentional replantation and Emdogain therapy. Dent Traumatol 2004; 20:226–8.
12. Saleh MHA, Dias DR, Ravida A, Wang HL. Root surface biomodification in periodontal therapy: Biological rationale and clinical applications. Periodontol 2000 . 2024
13. Yildirim, D.P., Goker Kamali, S. Prevalence of palatogingival groove and its association with periapical lesions and periodontal bone loss: a cone beam computed tomography study. BMC Oral Health 2025; 25:313
14. Everett FG, Kramer GM. The distolingual groove in the maxillary lateral incisor: a periodontal hazard. J Periodontol 1972;43:352–61.
15. Rankow HJ, Krasner PR. Endodontic applications of guided tissue regeneration in endodontic surgery. J Endod 1996;22:34–43.
16. Simon JH, Glick DH, Frank AL. Predictable endodontic and periodontic failures as a result of radicular anomalies. Oral Surg Oral Med Oral Pathol 1971;31:823–6
