Orthodontic Loads in Teeth after Regenerative Endodontics : A Finite Element Analysis of the Biomechanical Performance of the Periodontal Ligament
Bucchi, Cristina (Universidad de La Frontera (Chile). Department of Integral Adult Dentistry)
Del Fabbro, Massimo (Università degli Studi di Milano. Dipartimento di Scienze Biomediche, Chirurgiche ed Odontoiatriche)
Marcé Nogué, Jordi (Institut Català de Paleontologia Miquel Crusafont)

Data:	2022
Resum:	The objective of this study was to analyse the stress distribution in the periodontal ligament and tooth structure of a cementum-reinforced tooth, a dentine-reinforced tooth and an immature tooth during orthodontic loads using a finite element analysis. A finite element model of a maxillary incisor and its supporting tissues was developed. The root was segmented into two parts: a part that represented a root in an immature state and an apical part that represented the tissue formed after regenerative endodontics. The apical part was given the mechanical properties of dentine or cementum. The three models underwent simulation of mesial load, palatal inclination and rotation. The mean stress values and stress distribution patterns of the periodontal ligament of the dentine- and cementum-reinforced teeth were similar in all scenarios. The maturation of the root, with either dentine or cementum, was beneficial for all scenarios, since the periodontal ligament of the immature tooth showed the highest mean stress values. Under the condition of this computational study, orthodontic loads can be applied in teeth previously treated with regenerative endodontics, since the distribution of stress is similar to those of physiologically mature teeth. In vivo studies should be performed to validate these results.
Nota:	Altres ajuts: CERCA Programme/Generalitat de Catalunya
Drets:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Llengua:	Anglès
Document:	Article ; recerca ; Versió publicada
Matèria:	Orthodontic loads ; Periodontal ligament ; Regenerative endodontics ; Revitalisation ; Finite element analysis ; Stress distribution
Publicat a:	Applied sciences (Basel), Vol. 12, Issue 14 (July 2022) , art. 7063, ISSN 2076-3417

DOI: 10.3390/app12147063

11 p, 1.8 MB

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