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Órgano Oficial de la Asociación Dental Mexicana

2018, Number 2

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Rev ADM 2018; 75 (2)

Difference between the radiographic and anatomical measurements of ducts, after preparation for the placement of a post

Larenas A, Del Valle LJ

Language: Spanish
References: 17
Page: 88-91
PDF size: 250.01 Kb.


ABSTRACT

Background: Periapical radiographs have distortions that lead to greater wear of the dental structure, increasing the risk of weakening, perforation or vertical fracture when the root canal is preparation for post placement. Objective: The investigation is to determine the difference between the measurements of the radiographic thickness and the anatomical thickness by means of a calibrator of the residual dentine after the preparation for post placement. Material and methods: Root canal treatment was performed in 50 premolars and was unsealed with Pesso #1 and 2 leaving 4 mm of the apical seal, the radiographic was made and compared with measurements made with a digital calibrator. The measurements were compared with a Student t. Results: The radiographic measurements were 24.63% larger than the caliper measurements. The radiographic measurements were significantly higher in comparison with the digital calibrators. Conclusions: The periapical radiography presents an overestimation residual dentin measurement, therefore the most conservative protocol should be chosen to obtain predictable and successful results.


REFERENCES

  1. Sorensen JA, Martinoff JT. Intracoronal reinforcement and coronal coverage: a study of endodontically treated teeth. J Prosthet Dent. 1984; 51 (6): 780-784.

  2. Trope M, Maltz DO, Tronstad L. Resistance to fracture of restored endodontically treated teeth. Endod Dent Traumatol. 1985; 1 (3): 108-111.

  3. Assif D, Gorfil C. Biomechanical considerations in restoring endodontically treated teeth. J Prosthet Dent. 1994; 71 (6): 565-567.

  4. Mou YB, Chen YM, Smales RJ, Yip KH. Optimum post and tooth root diameters for a cast post-core system. Am J Dent. 2009; 22 (5): 311-314.

  5. Sathorn C, Palamara JE, Palamara D, Messer HH. Effect of root canal size and external root surface morphology on fracture susceptibility and pattern: a finite element analysis. J Endod. 2005; 31 (4): 288-292.

  6. Gutmann JL. The dentin-root complex: anatomic and biologic considerations in restoring endodontically treated teeth. J Prosthet Dent. 1992; 67 (4): 458-467.

  7. Raiden G, Koss S, Costa L, Hernández JL. Radiographic measurement of residual root thickness in premolars with post preparation. J Endod. 2001; 27 (4): 296-298.

  8. Kuttler S, McLean A, Dorn S, Fischzang A. The impact of post space preparation with Gates-Glidden drills on residual dentin thickness in distal roots of mandibular molars. J Am Dent Assoc. 2004; 135 (7): 903-909.

  9. Katz A, Wasenstein-Kohn S, Tamse A, Zuckerman O. Residual dentin thickness in bifurcated maxillary premolars after root canal and dowel space preparation. J Endod. 2006; 32 (3): 202-205.

  10. Cheung W. A review of the management of endodontically treated teeth. Post, core and the final restoration. J Am Dent Assoc. 2005; 136 (5): 611-619.

  11. Schwartz RS, Robbins JW. Post placement and restoration of endodontically treated teeth: a literature review. J Endod. 2004; 30 (5): 289-301.

  12. Souza EM, do Nascimento LM, Maia Filho EM, Alves CM. The impact of post preparation on the residual dentin thickness of maxillary molars. J Prosthet Dent. 2011; 106 (3): 184-190.

  13. Pilo R, Shapenco E, Lewinstein I. Residual dentin thickness in bifurcated maxillary first premolars after root canal and post space preparation with parallel-sided drills. J Prosthet Dent. 2008; 99 (4): 267-273.

  14. Nair MK, Nair UP. Digital and advanced imaging in endodontics: a review. J Endod. 2007; 33(1): 1-6.

  15. Patel S, Dawood A, Whaites E, Pitt Ford T. New dimensions in endodontic imaging: part 1. Conventional and alternative radiographic systems. Int Endod J. 2009; 42 (6): 447-462.

  16. Raiden G, Costa L, Koss S, Hernández JL, Aceñolaza V. Residual thickness of root in first maxillary premolars with post space preparation. J Endod. 1999; 25 (7): 502-505.

  17. Baratieri LN, De Andrada MA, Arcari GM, Ritter AV. Influence of post placement in the fracture resistance of endodontically treated incisors veneered with direct composite. J Prosthet Dent. 2000; 84 (2): 180-184.




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