Optimal tooth sectioning using a surgical handpiece and elevator: a finite element study of horizontally deeply impacted mandibular third molars.
Efficiency
Finite element model
Mandibular third molar
Tooth section
Trauma
Journal
Clinical oral investigations
ISSN: 1436-3771
Titre abrégé: Clin Oral Investig
Pays: Germany
ID NLM: 9707115
Informations de publication
Date de publication:
22 Jul 2024
22 Jul 2024
Historique:
received:
10
04
2024
accepted:
14
07
2024
medline:
22
7
2024
pubmed:
22
7
2024
entrez:
22
7
2024
Statut:
epublish
Résumé
To conduct a finite element analysis of the impact of different variables on tooth sectioning efficiency and trauma to surrounding tissues when utilizing high-speed surgical handpieces and elevators. CBCT data from the horizontally impacted third mandibular molar (M3M) of a patient were utilized to establish digital models of the M3M, adjacent M2M, and surrounding bone. To simulate tooth sectioning, a 3D finite element model was established with the following variables: remaining tooth tissue thickness (1-5 mm), tooth section fissure width (1-3 mm), elevator depth in fissure (2-6 mm), elevator position (buccal, lingual, central), elevator width (2-5 mm), and application of force (rotating, levering). Using this model, the distribution of stress on the M3M and the surrounding tissue was assessed while measuring tooth sectioning efficiency and trauma to the surrounding tissue. Factors associated with uniform stress at the site of sectioning included thin (≤ 3 mm) remaining tooth tissue, appropriate fissure width (~ 2 mm), a wide (≥ 4 mm) elevator, and central elevator positioning. Levering the elevator yielded greater stress on the M3M than rotating force. Greater sectioning efficiency was associated with increased stress placed on the distobuccal side of M2M. Tooth sectioning efficiency can be improved by adjusting the high-speed surgical handpiece and elevator. However, it is important to remain attentive to the trauma to which adjacent teeth are exposed during this process. These results offer guidance for approaches to improving operator efficiency and reducing trauma to surrounding tissues during tooth sectioning.
Identifiants
pubmed: 39037593
doi: 10.1007/s00784-024-05834-9
pii: 10.1007/s00784-024-05834-9
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
439Subventions
Organisme : Youth Research Fund, School of Stomatology, Peking University Stomatology Hospital
ID : PKUSS20220102
Organisme : New Clinical Techniques Project of Peking University School and Hospital of Stomatology
ID : PKUSSNCT-22A11
Informations de copyright
© 2024. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.
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