Association between imaging and clinical findings in mandibular third molar surgeries

  • Marcelo Bonifácio da Silva Sampieri Universidade Federal do Ceará - Sobral
  • Danilo da Silva Correa Universidade de São Paulo - Bauru
  • Francisca Lívia Parente Viana Universidade Federal do Ceará
  • Thaís Sumie Nozu Imada Universidade de São Paulo - Bauru
  • Josfran da Silva Ferreira Filho Liga de Anatomia e Trauma Buco-Maxilo-Facial da Universidade Federal do Ceará campus Sobral
  • Eduardo Sant'Anna Universidade de São Paulo - USP

Resumo

Objective: it is important to evaluate the position andestablish the third molar relationship with the mandibularcanal to minimize the risk of nerve injury and assistin planning the extraction of this tooth. The panoramicradiograph is the standard diagnostic tool for this purpose.However, if it indicates a close relationship betweenthe third molar and the mandibular canal, furtherinvestigation using cone beam computed tomography(CBCT) may be recommended to check the three-dimensionalrelationship between the tooth and the mandibularcanal. Thus, this study aimed to correlate the clinicalfindings (observed in third molar surgeries) to imagingfindings (observed in panoramic radiographs andCBCT). Subjects and method: after the extraction of 20mandibular third molars, the panoramic radiograph andthe cone beam computed tomography were analyzed.Then, the surgical findings were correlated to the imagefindings. Results: It was observed that the radiographicfinding type 2 (darkening of roots) observed in the panoramicradiograph presented a greater relation to theabsence of cortical bone between the mandibular canaland the third molar (CBCT finding), with statistical significance(p<0.05). Conclusions: Based on the findingsobtained in this study, it may be concluded that CBCTwould be best used in the surgical planning, when thepanoramic radiograph clearly suggests a risk. Moreover,the panoramic radiograph may continue to be used forthe planning of third molar extractions.Keywords: Cone beam computed tomography. Panoramicradiograph. Third molar. Unerupted tooth.

Downloads

Não há dados estatísticos.

Referências

Peixoto LR, Gonzaga AK, Melo SL, Pontual ML, Pontual Ados A, de Melo DP. The effect of two enhancement tools on the assessment of the relationship between third molars and the inferior alveolar canal. J Craniomaxillofac Surg 2015; 43(5):637-42.

Matzen LH, Wenzel A. Efficacy of CBCT for assessment of impacted mandibular third molars: a review – based on a hierarchical model of evidence. Dentomaxillofac Radiol 2015; 44(1):1-11.

Kruse C, Spin-Neto R, Wenzel A, Kirkevang LL. Cone beam computed tomography and periapical lesions: a systematic review analyzing studies on diagnostic efficacy by a hierarchical model. Int Endod J 2015; 48(9):815-28.

Spin-Neto R, Gotfredsen E, Wenzel A. Impact of voxel size variation on CBCT – based diagnostic outcome in dentistry: a systematic review. J Digit Imaging 2013; 26(4):813-20.

Ishak MH, Zhun OC, Shaari R, Rahman SA, Hasan MN, Alam MK. Panoramic radiography in evaluating the relationship of mandibular canal and impacted third molars in comparison with cone-beam computed tomography. Mymensingh Med J 2014; 23(4):781-6.

Nascimento EHL, Oenning ACC, Freire BB, Gaêta-Araujo H, Haiter-Neto F, Freitas DQ. Comparison of panoramic radiography and cone beam CT in the assessment of juxta-apical radiolucency. Dentomaxillofac Radiol 2018; 47(1):115-23.

Nascimento EH, Oennnig AC, Rocha Nadaes M, Ambrosano GM, Haiter-Neto F, Freitas DQ. Juxta-apical radiolucency: relation to the mandibular canal and cortical plates based on cone beam CT imaging. Oral Surg Oral Med Oral Pathol Oral Radiol 2017; 123(3):401-7.

Haas LF, Dutra K, Porporatti AL, Mezzomo LA, De Luca Canto G, Corrêa M. Anatomical variations of mandibular canal detected by panoramic radiography and CT: a systematic review and meta-analysis. Dentomaxillofac Radiol 2016; 45(2):20150310.

Shah NP, Murtadha L, Brown J. Bifurcation of the inferior dental nerve canal: an anatomical study. Br J Oral Maxillofac Surg 2018 7. Pii:S0266-4335(18)30037-8.

Neves FS, Nascimento MC, Oliveira ML, Almeida SM, Bóscolo FN. Comparative analysis of mandibular anatomical variations between panoramic radiography and cone beam computed tomography. Oral Maxillofac Surg 2014; 18(4):419-24.

Rodriguez Y, Baena R, Beltrami R, Tagliabo A, Rizzo S, Lupi SM. Differences between panoramic and Cone Beam - CT in the surgical evaluation of lower third molars. J Clin Exp Dent 2017; 9(2):e259-e265

Peker I, Sarikir C, Toraman M, Zor ZF. Panoramic radiography and cone-beam computed tomography findings in preoperative examination of impacted mandibular third molars. BMC Oral Health 2014; 14:71.

Fee PA, Wright A, Cunningham C. Cone beam computed tomography in pre-surgical assessment of mandibular third molars. Evid Based Dent 2016; 17(4):117-8.

Matzen LH, Schropp L, Spin-Neto R, Wenzel A. Radiographic signs of pathology determining removal of an impacted mandibular third molar assessed in a panoramic image or CBCT. Dentomaxillofac Radiol 2017; 46(1):20160330.

Eyrich G, Seifert B, Matthews F, Matthiessen U, Heusser CK, Kruse AL, et al. 3-Dimensional imaging for lower third molars: is there an implication for surgical removal? J Oral Maxillofac Surg 2013; 69:1867-1872.

Lübbers HT, Matthews F, Damerau G, Kruse AL, Obwegeser JA, Grätz KW, et al. No plane is the best one-the volume is! Oral Surg Oral Med Oral Pathol Oral Radiol 2013; 113:421.

Oenning AC, Neves FS, Alencar PN, Prado RF, Groppo FC, Haiter-Neto F. External root resorption of the second molar associated with third molar impaction: comparison of panoramic radiography and cone beam computed tomography. J Oral Maxillofac Surg 2014; 72(8):144-55.

Guerrero ME, Botetano R, Beltran J, Horner K, Jacobs R. Can Preoperative imaging help to predict postoperative outcome after wisdom tooth removal? A randomized controlled trial using panoramic radiography versus cone-beam CT. Clin Oral Invest 2014; 18(1):335-42.

Muinelo-Lorenzo J, Suárez-Quintanilla JA, Fernández-Alonso A, Marsillas-Rascado S, Suárez-Cunqueiro MM. Descriptive study of the bifid mandibular canals and retromolar foramina: cone beam CT vs panoramic radiography. Dentomaxillofac Radiol 2014; 43(5):20140090.

Ghaeminia H, Gerlach NL, Hoppenreijs TJ, Kicken M, Dings JP, Borstlap WA, et al. Clinical relevance of cone beam computed tomography in mandibular third molar removal: A multicentre, randomised, controlled trial. J Craniomaxillofac Surg 2015; 43(10):2158-67.

Publicado
2018-08-15
Como Citar
Sampieri, M., Correa, D., Viana, F., Imada, T., Filho, J., & Sant’Anna, E. (2018). Association between imaging and clinical findings in mandibular third molar surgeries. Revista Da Faculdade De Odontologia - UPF, 23(1). https://doi.org/10.5335/rfo.v23i1.8127
Seção
Artigos