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Distances of root apices to adjacent anatomical structures in the anterior maxilla: an analysis using cone beam computed tomography.
Clin Oral Investig. 2019 May; 23(5):2253-2263.CO

Abstract

OBJECTIVES

The aim was to assess the anatomical relationship of anterior maxillary teeth to the nasal floor in patients referred for apical surgery.

MATERIALS AND METHODS

Cone beam computed tomographic images (CBCT) of 83 patients were analysed retrospectively to quantify the distances between the root apices of maxillary anterior teeth (canine to canine) to the nasal floor or maxillary sinus (whichever was closer). Secondary outcome variables were the distances of the periapical lesion to the nasal floor, distances of the apices to the labial and palatal bone plates as well as to the neighbouring teeth.

RESULTS

A total of 93 teeth (39 central, 35 lateral incisors and 19 canines) were analysed. The mean shortest distances of the apices to the nasal floor (or maxillary sinus) were 8.54 mm for central incisors, 9.49 mm for lateral incisors and 5.39 mm for the canines. The canines exhibited a significantly shorter distance to the nasal floor/maxillary sinus. In the presence of an osteolysis, the distance to the nasal floor was significantly shorter compared to the teeth without lesions. The lateral and central incisors showed significant proximity to each other at the level of the future surgical resection (3 mm from the apex).

CONCLUSIONS

A close proximity between apices and adjacent anatomical structures such as nasal floor, maxillary sinus or adjacent roots could be shown in some cases.

CLINICAL RELEVANCE

CBCT could be a valuable adjunctive imaging tool prior to apical surgery in the anterior maxilla to assess the risk for and decrease the incidence of damage to neighbouring anatomical structures such as the nasal floor, maxillary sinus or adjacent roots.

Authors+Show Affiliations

Department of Oral Surgery and Stomatology, School of Dental Medicine, University of Bern, Freiburgstrasse 7, CH-3010, Bern, Switzerland. julien.ducommun@zmk.unibe.ch.Applied Oral Sciences, Faculty of Dentistry, Prince Philip Dental Hospital, The University of Hong Kong, Sai Ying Pun, Hong Kong, SAR, China.Dental Public Health, Faculty of Dentistry, Prince Philip Dental Hospital, The University of Hong Kong, Sai Ying Pun, Hong Kong, SAR, China.Department of Oral Surgery and Stomatology, School of Dental Medicine, University of Bern, Freiburgstrasse 7, CH-3010, Bern, Switzerland.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

30288606

Citation

Ducommun, Julien, et al. "Distances of Root Apices to Adjacent Anatomical Structures in the Anterior Maxilla: an Analysis Using Cone Beam Computed Tomography." Clinical Oral Investigations, vol. 23, no. 5, 2019, pp. 2253-2263.
Ducommun J, Bornstein MM, Wong MCM, et al. Distances of root apices to adjacent anatomical structures in the anterior maxilla: an analysis using cone beam computed tomography. Clin Oral Investig. 2019;23(5):2253-2263.
Ducommun, J., Bornstein, M. M., Wong, M. C. M., & von Arx, T. (2019). Distances of root apices to adjacent anatomical structures in the anterior maxilla: an analysis using cone beam computed tomography. Clinical Oral Investigations, 23(5), 2253-2263. https://doi.org/10.1007/s00784-018-2650-4
Ducommun J, et al. Distances of Root Apices to Adjacent Anatomical Structures in the Anterior Maxilla: an Analysis Using Cone Beam Computed Tomography. Clin Oral Investig. 2019;23(5):2253-2263. PubMed PMID: 30288606.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Distances of root apices to adjacent anatomical structures in the anterior maxilla: an analysis using cone beam computed tomography. AU - Ducommun,Julien, AU - Bornstein,Michael M, AU - Wong,May Chun Mei, AU - von Arx,Thomas, Y1 - 2018/10/04/ PY - 2017/11/02/received PY - 2018/09/20/accepted PY - 2018/10/6/pubmed PY - 2019/12/31/medline PY - 2018/10/6/entrez KW - Apical surgery KW - Cone beam computed tomography KW - Maxillary sinus KW - Nasal floor SP - 2253 EP - 2263 JF - Clinical oral investigations JO - Clin Oral Investig VL - 23 IS - 5 N2 - OBJECTIVES: The aim was to assess the anatomical relationship of anterior maxillary teeth to the nasal floor in patients referred for apical surgery. MATERIALS AND METHODS: Cone beam computed tomographic images (CBCT) of 83 patients were analysed retrospectively to quantify the distances between the root apices of maxillary anterior teeth (canine to canine) to the nasal floor or maxillary sinus (whichever was closer). Secondary outcome variables were the distances of the periapical lesion to the nasal floor, distances of the apices to the labial and palatal bone plates as well as to the neighbouring teeth. RESULTS: A total of 93 teeth (39 central, 35 lateral incisors and 19 canines) were analysed. The mean shortest distances of the apices to the nasal floor (or maxillary sinus) were 8.54 mm for central incisors, 9.49 mm for lateral incisors and 5.39 mm for the canines. The canines exhibited a significantly shorter distance to the nasal floor/maxillary sinus. In the presence of an osteolysis, the distance to the nasal floor was significantly shorter compared to the teeth without lesions. The lateral and central incisors showed significant proximity to each other at the level of the future surgical resection (3 mm from the apex). CONCLUSIONS: A close proximity between apices and adjacent anatomical structures such as nasal floor, maxillary sinus or adjacent roots could be shown in some cases. CLINICAL RELEVANCE: CBCT could be a valuable adjunctive imaging tool prior to apical surgery in the anterior maxilla to assess the risk for and decrease the incidence of damage to neighbouring anatomical structures such as the nasal floor, maxillary sinus or adjacent roots. SN - 1436-3771 UR - https://www.unboundmedicine.com/medline/citation/30288606/Distances_of_root_apices_to_adjacent_anatomical_structures_in_the_anterior_maxilla:_an_analysis_using_cone_beam_computed_tomography_ L2 - https://dx.doi.org/10.1007/s00784-018-2650-4 DB - PRIME DP - Unbound Medicine ER -