Wolf, Thomas Gerhard; Basmaci, Samuel; Schumann, Sven; Waber, Andrea Lisa (2023). Internal Morphology of Mandibular Second Premolars Using Micro-Computed Tomography. Journal of imaging, 9(12), p. 257. MDPI 10.3390/jimaging9120257
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To examine root canal morphology of mandibular second premolars (Mn2P) of a mixed Swiss-German population by means of micro-computed tomography (micro-CT). Root canal configuration (RCC) of 102 Mn2P were investigated using micro-CT unit (µCT 40; SCANCO Medical AG, Brüttisellen, Switzerland) with 3D software imaging (VGStudio Max 2.2; Volume Graphics GmbH, Heidelberg, Germany), described with a four-digit system code indicating the main root canal from coronal to apical thirds and the number of main foramina. A total of 12 different RCCs were detected. 1-1-1/1 (54.9%) was most frequently observed RCC, followed by 1-1-1/2 (14.7%), 1-1-2/2 (10.8%), 1-2-2/2 (4.9%), 1-1-3/3 (3.9%), 1-1-1/3 (2.9%), 2-1-1/1 (2.9%) and less frequently 1-1-2/3, 1-2-1/2, 2-1-2/2, 1-1-2/5, 1-1-1/4 with each 1.0%. No accessory foramina were present in 35.3%, one in 35.3%, two in 21.6%, three and four in 2.9%, and five in 2.0%. In 55.9% Mn2Ps, accessory root canals were present in apical third and 8.8% in middle third of a root. Connecting canals were observed less frequently (6.9%) in apical and 2.9% in the middle third, no accessory/connecting canals in coronal third. Every tenth tooth showed at least or more than three main foramina. Almost two thirds of the sample showed accessory root canals, predominantly in apical third. The mainly single-rooted sample of Mn2Ps showed less frequent morphological diversifications than Mn1Ps.
Item Type: |
Journal Article (Original Article) |
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Division/Institute: |
04 Faculty of Medicine > School of Dental Medicine > Department of Preventive, Restorative and Pediatric Dentistry |
UniBE Contributor: |
Wolf, Thomas Gerhard, Anderegg, Andrea Lisa |
Subjects: |
600 Technology > 610 Medicine & health |
ISSN: |
2313-433X |
Publisher: |
MDPI |
Language: |
English |
Submitter: |
Thomas Gerhard Wolf |
Date Deposited: |
24 Nov 2023 09:58 |
Last Modified: |
24 Nov 2023 09:58 |
Publisher DOI: |
10.3390/jimaging9120257 |
Uncontrolled Keywords: |
internal morphology; mandibular second premolar; micro-CT; number of canals; root canal configuration |
BORIS DOI: |
10.48350/189335 |
URI: |
https://boris.unibe.ch/id/eprint/189335 |
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