The Importance and Management of Palato-gingival Groove

Palato-gingival groove is a tooth developmental anomaly usually found in upper lateral and upper central incisors. It is an important predisposing factor to localized periodontal disease. In some cases, the deep groove may communicate to the root canal system and may cause endodontic-periodontal lesion. Prognosis and treatment plan depend on the extension of the groove and the severity of attachment loss. Interdisciplinary treatment should be considered according to severity of the lesion, including periodontal, restorative and endodontic therapy. When the groove is deep and reach the apical part of the root, leading to severe alveolar bone loss, extraction will be considered. In order to prevent further tooth loss, the dentist should recognize palato-gingival groove as a routine examination.

1. Everett FG, Kramer GM. The disto-lingual groove in the maxillary lateral incisor; a periodontal hazard. J Periodontol 1972; 43 (6):352- 361.

2. 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 (1):14-18.

3. August DS. The radicular lingual groove: an overlooked differential diagnosis. J Am Dent Assoc 1978; 96 (6): 1037-1039.

4. Kozlovsky A, Tal H, Yechezkiely N, Mozes O. Facial radicular groove in a maxillary central incisor. A case report. J Periodontol 1988; 59 (9): 615-617.

5. Peikoff MD, Trott JR. An endodontic failure caused by an unusual anatomical anomaly. J Endod 1977; 3 (9): 356-359.

6. Withers JA, Brunsvold MA, Killoy WJ, Rahe AJ. The relationship of palato-gingival grooves to localized periodontal disease. J Periodontol 1981; 52(1): 41-44.

7. Hou GL, Tsai CC. Relationship between palato-radicular grooves and localized periodontitis. J Clin Periodontol 1993; 20 (9): 678-682.

8. Kogon SL. The prevalence, location and conformation of palato-radicular grooves in maxillary incisors. J Periodontol 1986; 57 (4): 231-234.

9. Bacic M, Karakas Z, Kaic Z, Sutalo J. The association between palatal grooves in upper incisors and periodontal complications. J Periodontol 1990; 61 (3): 197-199.

10. Albaricci MF, de Toledo BE, Zuza EP, Gomes DA, Rosetti EP. Prevalence and features of palato-radicular grooves: an in-vitro study. J Int Acad Periodontol 2008; 10 (1): 2-5.

11. Ennes JP, Lara VS. Comparative morphological analysis of the root developmental groove with the palato-gingival groove. Oral Dis 2004; 10 (6): 378-382.

12. Gao ZR, Shi JN, Wang Y, Gu FY. Scanning electron microscopic investigation of maxillary lateral incisors with a radicular lingual groove. Oral Surg Oral Med Oral Pathol 1989; 68 (4): 462-466.

13. Rajput A, Talwar S, Chaudhary S, Khetarpal A. Successful management of pulpo-periodontal lesion in maxillary lateral incisor with palatogingival groove using CBCT scan. Indian J Dent Res 2012; 23 (3): 415-418.

14. Ram S, Sudhakar U, Pramod V, Radhika A. Palatogingival Grooves. Indian J Dent Adv 2010; 2 (2): 229-233.

15. Goon WW, Carpenter WM, Brace NM, Ahlfeld RJ. Complex facial radicular groove in a maxillary lateral incisor. J Endod 1991; 17 (5): 244- 248.

16. Gu YC. A micro-computed tomographic analysis of maxillary lateral incisors with radicular grooves. J Endod 2011; 37 (6): 789-792.

17. Peikoff MD, Perry JB, Chapnick LA. Endodontic failure attributable to a complex radicular lingual groove. J Endod 1985; 11 (12): 573-577.

18. Friedman S, Goultschin J. The radicular palatal groove--a therapeutic modality. Endod Dent Traumatol 1988; 4 (6): 282-286.

19. Dragoo MR. Resin-ionomer and hybrid-ionomer cements: part II, human clinical and histologic wound healing responses in specific periodontal lesions. Int J Periodontics Restorative Dent 1997; 17 (1):75-87.

20. Vermeersch G, Leloup G, Delmee M, Vreven J. Antibacterial activity of glass-ionomer cements, compomers and resin composites: relationship between acidity and material setting phase. J Oral Rehabil 2005; 32 (5): 368-374.

21. Corr AFP, Alcantara CE, Santos CR, Marques LS, Ramos-Jorge ML. Palatal radicular groove: clinical implications of early diagnosis and surgical sealing. J Indian Soc Pedod Prev Dent 2011; 29 (6): s92-s94.

22. Wakia T, Islam MA, Alam MS. Non-surgical management of immature maxillary lateral incisor with palato-gingival groove with MTA. Updat Dent Coll J 2010; 2 (2): 38-41.

23. Shabahang S, Torabinejad M. Treatment of teeth with open apices using mineral trioxide aggregate. Pract Periodontics Aesthetic Dent 2000; 12 (3):315-320.

24. Johns D, Shivashankar V, Shobha K, Johns M. An innovative approach in the management of palatogingival groove using BiodentineTM and platelet-rich fibrin membrane. J Conserv Dent 2014; 17 (1):75-79.

25. Camilleri J, Kralj P, Veber M, Sinagra E. Characterization and analyses of acid-extractable and leached trace elements in dental cements. Int Endod J 2012; 45 (8): 737-743.

26. Liji MP, Rameshkumar M. Integration of PRF and Biodentine in Palatogingival Groove case. J Dent Med Sci 2013; 6 (4): 26-33.

27. Sharma S, Deepak P, Vivek S, Dutta SR. Palatogingival Groove: Recognizing and Managing the Hidden Tract in a Maxillary Incisor: A Case Report. J Int Oral Health 2015; 7 (6): 110-114.

28. Rethman MP. Treatment of a palatal-gingival groove using enamel matrix derivative. Compen Contin Educ Dent 2001; 22 (9):792-797.

29. Zucchelli G, Mele M, Checchi L. The papilla amplification flap for the treatment of a localized periodontal defect associated with a palatal groove. J Periodontol 2006; 77 (10): 1788-1796.

30. Bender IB, Rossman LE. Intentional replantation of endodontically treated teeth. Oral Surg Oral Med Oral Pathol 1993; 76 (5): 623-630.

31. Gottlow J, Nyman S, Karring T, Lindhe J. New attachment formation as the result of controlled tissue regeneration. J Clin Periodontol 1984; 11 (8): 494-503.

32. Gottlow J, Nyman S, Lindhe J, Karring T, Wennstrom J. New attachment formation in the human periodontium by guided tissue regeneration. Case reports. J Clin Periodontol 1986; 13 (6): 604-616.

33. Cortellini P, Tonetti MS. Focus on intrabony defects: guided tissue regeneration. Periodontol 2000 2000; 22: 104-132.

34. Filippi A, Pohl Y, von Arx T. Treatment of replacement resorption by intentional replantation, resection of the ankylosed sites, and Emdogain--results of a 6-year survey. Dental traumatology : official publication of International Association for Dent Traumatol 2006; 22 (6):307-311.

35. Dohan DM, Choukroun J, Diss A, et al. Platelet-rich fibrin (PRF): a second-generation platelet concentrate. Part I: technological concepts and evolution. Oral Surg, Oral Med, Oral Pathol, Oral Radiol, Endod 2006; 101 (3): e37-e44.

36. Rouhani A, Javidi B, Habibi M, Jafarzadeh H. Intentional replantation: a procedure as a last resort. J Contemp Dent Pract 2011; 12 (6): 486- 492.

37. 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 (6): 823-826.

38. Hungund S, Kumar M. Palato-radicular groove and localized periodontitis: a series of case reports. J Contemp Dent Pract 2010; 11 (5): 56-62.

39. Anderegg CR, Metzler DG. Treatment of the palato-gingival groove with guided tissue regeneration. Report of 10 cases. J Periodontol 1993; 64 (1): 72-74s.

Meeleesawasdi B, Louwakul P. The Importance and Management of Palato-gingival Groove: Review articles. CM Dent J [Internet]. 2024 Dec 02 [cited 2025 May 03];36(2):47-56. Available from: https://www.dent.cmu.ac.th/cmdj/frontend/web/?r=site/viewarticle&id=260

Meeleesawasdi, B. & Louwakul, P. (2024). The Importance and Management of Palato-gingival Groove. CM Dent J, 36(2), 47-56. Retrieved from: https://www.dent.cmu.ac.th/cmdj/frontend/web/?r=site/viewarticle&id=260

Meeleesawasdi, B., and Phumisak Louwakul. 2024. "The Importance and Management of Palato-gingival Groove." CM Dent J, 36(2), 47-56. https://www.dent.cmu.ac.th/cmdj/frontend/web/?r=site/viewarticle&id=260

Meeleesawasdi, B. et al. 2024. 'The Importance and Management of Palato-gingival Groove', CM Dent J, 36(2), 47-56. Retrieved from https://www.dent.cmu.ac.th/cmdj/frontend/web/?r=site/viewarticle&id=260

Meeleesawasdi, B. and Louwakul, P. "The Importance and Management of Palato-gingival Groove", CM Dent J, vol.36, no. 2, pp. 47-56, Dec. 2024.

Benjaporn Meeleesawasdi, Phumisak Louwakul "The Importance and Management of Palato-gingival Groove." CM Dent J, vol.36, no. 2, Dec. 2024, pp. 47-56, https://www.dent.cmu.ac.th/cmdj/frontend/web/?r=site/viewarticle&id=260