Proximity of mandibular third molar root(s) to surrounding cortical bone: cone beam computed tomography (CBCT) and panoramic findings.
Cone beam computed tomography
Cortical bone
Mandibular third molar
Panoramic radiography
Penetration
Perforation
Journal
Oral and maxillofacial surgery
ISSN: 1865-1569
Titre abrégé: Oral Maxillofac Surg
Pays: Germany
ID NLM: 101319632
Informations de publication
Date de publication:
Jun 2022
Jun 2022
Historique:
received:
15
03
2021
accepted:
03
06
2021
pubmed:
11
8
2021
medline:
7
6
2022
entrez:
10
8
2021
Statut:
ppublish
Résumé
We evaluated the relationship between mandibular third molar roots (M3Ms) and surrounding cortical bone using cone beam computed tomography (CBCT) and panoramic findings. We studied (a) the location of mandibular third molar roots in relation with cortical bone in terms of contact, penetration, and perforation on CBCT; (b) the relationship between characteristics of a root in panoramic findings and the CBCT image (entire and segmentally); and (c) the relationship of the root plane in panoramic findings vs. CBCT. One hundred five teeth with 224 roots of mandibular third molar from 73 patients were evaluated by using cone beam computed tomography and panoramic image. The relationships were assessed using 105 images of impacted M3Ms: 104/105 (99%) showed cortical bone involvement (30.4% penetration and 68.6% perforation). The more apical the segment, the higher the proportion of perforation. Most (79.9%) of the M3M roots involved a lingual cortex with 46.9% penetration and 49.2% perforation. The panoramic signs of segmental root images-viz. clear and blurred-were not associated with cortical penetration or perforation. Panoramic signs of individual root images-in the same and different planes-could be used to predict root plane M3M roots. The same appearance in the panoramic image was significantly related to the same plane of the root in CBCT (p-value 0.048). These findings could contribute to enhanced radiological assessment and surgical planning.
Identifiants
pubmed: 34374876
doi: 10.1007/s10006-021-00979-3
pii: 10.1007/s10006-021-00979-3
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
311-319Informations de copyright
© 2021. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.
Références
Bouloux GF, Fracds F, Steed MB, Perciaccante VJ (2007) Complications of third molar surgery. Oral and Maxillofacial Surgery Clinics 19(1):117–118
doi: 10.1016/j.coms.2006.11.013
Aznar-Arasa L, Figueiredo R, Gay-Escoda C (2012) Iatrogenic displacement of lower third molar roots into the sublingual space: report of 6 cases. Journal of Oral Maxillofacial Surgery 70(2):107–115
doi: 10.1016/j.joms.2011.09.039
Brauer HU (2009) Unusual complications associated with third molar surgery: a systematic review. Quintessence Int 40(7):565–572
pubmed: 19626231
Huang IY, Chen CM, Chang SW, Yang CF, Chen CH, Chen CM (2007) Surgical management of accidentally displaced mandibular third molar into the pterygomandibular space: a case report. Kaohsiung J Med Sci 23(7):370–374
doi: 10.1016/S1607-551X(09)70424-3
Jolly SS, Rattan V, Rai SK (2014) Intraoral management of displaced root into submandibular space under local anesthesia–a case report and review of literature. The Saudi Dental Journal 26(4):181–184
doi: 10.1016/j.sdentj.2014.05.004
Stacy G (1964) Perforation of the lingual alveolar plate in association with mandibular third molars: report of a case. Oral Surgery, Oral Medicine, Oral Pathology 17(5):586–591
doi: 10.1016/0030-4220(64)90362-7
Ohshima A, Ariji Y, Goto M, Izumi M, Naitoh M, Kurita K et al (2004) Anatomical considerations for the spread of odontogenic infection originating from the pericoronitis of impacted mandibular third molar: computed tomographic analyses. Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontology 98(5):589–597
doi: 10.1016/j.tripleo.2004.07.012
Chow AW (2020) Infections of the oral cavity, neck, and head. In: Bennett JE, Dolin R, Blaser MJ (eds) Mandell, Douglas, and Bennett’s principles and practice of infectious diseases, 9th edn. Elsevier, Philadelphia, pp 859–874
Markiewicz MR, Han MD, Miloro M (2019) Complex odontogenic infection. In: Hupp J, Tucker M, Ellis E (eds) Contemporary oral and maxillofacial surgery, 7th edn. Elsevier, Philadelphia, pp 335–363
Tantanapornkul W, Okochi K, Bhakdinaronk A, Ohbayashi N, Kurabayashi T (2009) Correlation of darkening of impacted mandibular third molar root on digital panoramic images with cone-beam computed tomography findings. Dentomaxillofacial Radiology 38(1):11–16
doi: 10.1259/dmfr/83819416
Harada N, Vasudeva S, Joshi R, Seki K, Araki K, Matsuda Y et al (2013) Correlation between panoramic radiographic signs and high-risk anatomical factors for impacted mandibular third molars. Oral Surg 6(3):129–136
doi: 10.1111/ors.12025
Winter GB (1926) Impacted mandibular third molar. St. Louis: American Medical Book 41
Park K-L (2016) Which factors are associated with difficult surgical extraction of impacted lower third molars? Journal of the Korean Association of Oral Maxillofacial Surgeons 42(5):251–258
doi: 10.5125/jkaoms.2016.42.5.251
Aktop S, Atalı O, Borahan O, Gocmen G, Garip H (2017) Analyses of anatomical relationship between mandibular third molar roots and variations in the lingual undercut of the mandible using cone-beam computed tomography. Journal of Dental Sciences 12(3):261–267
doi: 10.1016/j.jds.2016.12.005
Chan HL, Brooks SL, Fu JH, Yeh CY, Rudek I, Wang HL (2011) Cross-sectional analysis of the mandibular lingual concavity using cone-beam computed tomography. Clin Oral Implant Res 22(2):201–206
doi: 10.1111/j.1600-0501.2010.02018.x
Momin M, Matsumoto K, Ejima K, Asaumi R, Kawai T, Arai Y et al (2013) Correlation of mandibular impacted tooth and bone morphology determined by cone-beam computed tomography on a premise of third molar operation. Surgical Radiologic Anatomy 35(4):311–318
doi: 10.1007/s00276-012-1031-y
Emes Y, Öncu B, Aybar B, Al-Badri N, Işsever H, Atalay B et al (2015) Measurement of the lingual position of the lower third molar roots using cone-beam computed tomography. Journal of Oral Maxillofacial Surgery 73(1):13–17
doi: 10.1016/j.joms.2014.06.460
Ge J, Zheng J-W, Yang C, Qian W-T (2016) Variations in the buccal-lingual alveolar bone thickness of impacted mandibular third molar: our classification and treatment perspectives. Sci Rep 6:1–9
doi: 10.1038/s41598-016-0001-8
Tolstunov L, Brickeen M, Kamanin V, Susarla SM, Selvi F (2016) Is the angulation of mandibular third molars associated with the thickness of lingual bone? British Journal of Oral Maxillofacial Surgery 54(8):914–919
doi: 10.1016/j.bjoms.2016.06.005
Szalma J, Vajta L, Lempel E, Jeges S, Olasz L (2013) Darkening of third molar roots on panoramic radiographs: is it really predominantly thinning of the lingual cortex? International Journal of Oral Maxillofacial Surgery 42(4):483–488
doi: 10.1016/j.ijom.2012.06.018
Nascimento EHL, Oenning ACC, Nadaes MR, Ambrosano GMB, Haiter-Neto F, Freitas DQ (2017) Juxta-apical radiolucency: relation to the mandibular canal and cortical plates based on cone-beam CT imaging. Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology 123(3):401–407
doi: 10.1016/j.oooo.2016.12.001