J Korean Acad Conserv Dent.  2011 Jan;36(1):19-25. 10.5395/JKACD.2011.36.1.19.

A retrospective study of the intentionally replanted mandibular second molars with C-shaped root canal configurations

• Shon WJ
• Kum KY
• Baek SH
• Lee WC

• KMID: 1446080
• DOI: http://doi.org/10.5395/JKACD.2011.36.1.19

Abstract

OBJECTIVES
The purpose of this retrospective study was to evaluate the success rate of intentionally replanted mandibular second molar with C-shaped canal configurations and to access the impact of preoperative periapical lesion on the success of intentional replantation procedure.
MATERIALS AND METHODS
This retrospective chart review study evaluated 52 intentionally replanted mandibular second molar teeth treated at Seoul National University Dental Hospital Department of Conservative Dentistry from January 2005 to December 2007. Seventeen teeth were lost for the follow-up, and another 6 teeth did not meet inclusion criteria of C-shaped root canal configurations. Healing outcome such as success, uncertain healing, and failure after follow-up was evaluated by clinical criteria and radiographs.
RESULTS
The overall success rate was 72.4% for the 29 intentionally replanted C-shaped mandibular second molars. The success rate of replanted teeth with preoperative periapical lesions was similar to that of replanted teeth which have no periapical lesions.
CONCLUSIONS
Therefore, root canal treatment failure on C-shaped mandibular second molar can be predictably treated by intentional replantation regardless of the presence of periapical lesion.

Keyword

C-shaped root canal; Intentional replantation; Mandibular second molar; Preoperative periapical lesions; Success rate

MeSH Terms

Dental Pulp Cavity
Dentistry
Follow-Up Studies
Hospital Departments
Intention
Molar
Replantation
Retrospective Studies
Tooth
Treatment Failure

Reference

1. Jafarzadeh H, Wu Y-N. The C-shaped root canal configuration: a review. J Endod. 2007. 33:517–523.

2. Fan B, Min Y, Lu G, Yang J, Cheung GSP, Gutmann Jl. Negotiation of C-shaped canal systems in mandibular second molars. J Endod. 2009. 35:1003–1008.

3. Yang ZP, Yang SF, Lin YC, Shay JC, Chi CY. C-shaped root canals in mandibular second molars in a Chinese population. Endod Dent Traumatol. 1988. 4:160–163.

4. Seo MS, Park DS. C-shaped root canals of mandibular second molars in a Korean population: clinical observation and in vitro analysis. Int Endod J. 2004. 37:139–144.

5. Jin GC, Lee SJ, Roh BD. Anatomical study of C-shaped canals in mandibular second molars by analysis of computed tomography. J Endod. 2006. 32:10–13.

6. Melton DC, Krell KV, Fuller MW. Anatomical and histological features of C-shaped canals in mandibular second molars. J Endod. 1991. 17:384–388.

7. Gao Y, Fan B, Cheung GSP, Gutmann Jl, Fan M. C-shaped canal system in mandibular second molars Part IV-3D morphological analysis and transverse measurement. J Endod. 2006. 32:1062–1065.

8. Ingle J, Bakland L. Endodontics. 2002. 5th ed. Philadelphia: Lea & Febiger;558.

9. Jerome CE. C-shaped root canal systems: diagnosis, treatment, and restoration. Gen Dent. 1994. 42:424–427.

10. Peer M. Intentional replantation - a "last resort" treatment or a conventional treatment procedure: Nine case reports. Dent Traumatol. 2004. 20:48–55.

11. Wolcott J, Rossman LE. Intentional replantation of endodontically treated teeth: an update. Compend Contin Educ Dent. 2003. 24:68–74.

12. Rud J, Andreasen JO, Jensen JE. Radiographic criteria for the assessment of healing after endodontic surgery. Int J Oral Surg. 1972. 1:195–214.

13. Molven O, Halse A, Grung B. Observer strategy and the radiographic classification of healing after endodontic surgery. Int J Oral Maxillofac Surg. 1987. 16:432–439.

14. Fan B, Cheung GSP, Fan M, Gutmann JL, Bian Z. C-shaped canal system in mandibular second molars: Part I-anatomical features. J Endod. 2004. 30:899–903.

15. Bender IB, Rossman LE. Intentional replantation of endodontically treated teeth. Oral Surg Oral Med Oral Pathol. 1993. 76:623–630.

16. Kingsbury BC Jr, Wiesenbaugh JM Jr. Intentional replantation of mandibular premolars and molars. J Am Dent Assoc. 1971. 83:1053–1057.

17. Raghoebar GM, Vissink A. Results of intentional replantation of molars. J Oral Maxillofac Surg. 1999. 57:240–244.

18. Cotter MR, Panzarino J. Intentional replantation: a case report. J Endod. 2006. 32:579–582.

19. Saunders WP. A prospective clinical study of periradicular surgery using mineral trioxide aggregate as a root-end filling. J Endod. 2008. 34:660–665.

20. Fernandez-Yanez Sanchez A, Leco-Berrocal MI, Martinez-Gonzalez JM. Metaanalysis of filler materials in periapical surgery. Med Oral Patol Oral Cir Bucal. 2008. 13:E180–E185.

21. Torabinejad M, Corr R, Handysides R, Shabahang S. Outcomes of nonsurgical retreatment and endodontic surgery: a systematic review. J Endod. 2009. 35:930–937.

22. Fan W, Fan B, Gutmann JL, Cheung GSP. Identification of C-shaped canal in mandibular second molars: Part I - radiographic and anatomical features revealed by intraradicular contrast medium. J Endod. 2007. 33:806–810.

23. Fan B, Cheung GSP, Fan M, Gutmann JL, Fan W. C-shaped canal system in mandibular second molars: Part II - radiographic features. J Endod. 2004. 30:904–908.

24. Carlsen O. Root complex and root canal system: a correlation analysis using one-rooted mandibular second molars. Scand J Dent Res. 1990. 98:273–285.

25. Fan W, Fan B, Gutmann JL, fan M. Identification of C-shaped canal in mandibular second molars - Part III: Anatomical features revealed by digital subtraction radiography. J Endod. 2008. 34:1187–1190.

26. Fan B, Gao Y, Fan W, Gutmann JL. Identification of C-shaped canal in mandibular second molars - Part II: the effect of bone image superimposition and intraradicular contrast medium on radiograph interpretation. J Endod. 2008. 34:160–165.

27. Ricucci D, Pascon EA, Langeland K. Long-term follow-up on C-shaped mandibular molars. J Endod. 1996. 22:185–187.

28. Cheung LHM, Cheung GSP. Evaluation of a rotary instrumentation method for C-shaped canals with micro-computed tomography. J Endod. 2008. 34:1233–1238.

29. Rodig T, Hulsmann M, Muhge M, Schafer F. Quality of preparation of oval distal root canals in mandibular molars using nickel-titanium instruments. Int Endod J. 2002. 35:919–928.