5093210d632da08ef7a4ebd6dfbe0204 applsci-12-07063.pdf 123795a11d357b2fe4e5d6a82a6172cf3cc85079 applsci-12-07063.pdf 009d524a5eb2d500bd7bae1743ab2e048d54c66e679d18d942721fef6341b75e applsci-12-07063.pdf Title: Orthodontic Loads in Teeth after Regenerative Endodontics: A Finite Element Analysis of the Biomechanical Performance of the Periodontal Ligament Subject: 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. Keywords: orthodontic loads; periodontal ligament; regenerative endodontics; revitalisation; finite element analysis; stress distribution Author: Cristina Bucchi, Massimo Del Fabbro and Jordi Marcé-Nogué Creator: LaTeX with hyperref Producer: pdfTeX-1.40.21 CreationDate: Wed Jul 13 11:35:51 2022 CEST ModDate: Wed Jul 13 11:40:25 2022 CEST Tagged: no UserProperties: no Suspects: no Form: none JavaScript: no Pages: 11 Encrypted: no Page size: 595.276 x 841.89 pts (A4) Page rot: 0 File size: 1857143 bytes Optimized: no PDF version: 1.7 name type encoding emb sub uni object ID ------------------------------------ ----------------- ---------------- --- --- --- --------- GFKJOY+VnURWPalladioL Type 1 Custom yes yes no 10 0 FZNFKY+URWPalladioL-Bold Type 1 Custom yes yes no 15 0 HHHANN+URWPalladioL-Roma Type 1 Custom yes yes no 20 0 UWSEHM+URWPalladioL-Ital Type 1 Custom yes yes no 24 0 BTFGED+VnURWPalladioL-Bold Type 1 Custom yes yes no 28 0 CRVMKC+TimesNewRomanPS-BoldItalicMT Type 1C WinAnsi yes yes no 46 0 SOSCBV+CMSY10 Type 1 Builtin yes yes no 68 0 OVNEXW+EURM10 Type 1 Builtin yes yes no 72 0 BCDEEE+PalatinoLinotype-Bold TrueType WinAnsi yes yes no 84 0 BCDFEE+PalatinoLinotype-Roman TrueType WinAnsi yes yes no 88 0 BCDGEE+PalatinoLinotype-Italic TrueType WinAnsi yes yes no 92 0 BCDHEE+PalatinoLinotype-Roman CID TrueType Identity-H yes yes yes 96 0 BCDEEE+PalatinoLinotype-Bold TrueType WinAnsi yes yes no 112 0 BCDFEE+PalatinoLinotype-Roman TrueType WinAnsi yes yes no 116 0 BCDGEE+PalatinoLinotype-Italic TrueType WinAnsi yes yes no 120 0 BCDHEE+PalatinoLinotype-Roman CID TrueType Identity-H yes yes yes 124 0 BCDIEE+PalatinoLinotype-Bold CID TrueType Identity-H yes yes yes 131 0 BCDEEE+PalatinoLinotype-Bold TrueType WinAnsi yes yes no 147 0 BCDFEE+PalatinoLinotype-Roman TrueType WinAnsi yes yes no 151 0 BCDGEE+PalatinoLinotype-Italic TrueType WinAnsi yes yes no 155 0 BCDHEE+PalatinoLinotype-Roman CID TrueType Identity-H yes yes yes 159 0 BCDEEE+PalatinoLinotype-Bold TrueType WinAnsi yes yes no 175 0 BCDFEE+PalatinoLinotype-Roman TrueType WinAnsi yes yes no 179 0 BCDGEE+PalatinoLinotype-Italic TrueType WinAnsi yes yes no 183 0 BCDHEE+PalatinoLinotype-Roman CID TrueType Identity-H yes yes yes 187 0 BCDEEE+PalatinoLinotype-Bold TrueType WinAnsi yes yes no 203 0 BCDFEE+PalatinoLinotype-Roman TrueType WinAnsi yes yes no 207 0 BCDGEE+PalatinoLinotype-Italic TrueType WinAnsi yes yes no 211 0 Jhove (Rel. 1.22.1, 2019-04-17) Date: 2022-07-20 02:30:56 CEST RepresentationInformation: applsci-12-07063.pdf ReportingModule: PDF-hul, Rel. 1.12.1 (2019-04-17) LastModified: 2022-07-13 12:53:19 CEST Size: 1857143 Format: PDF Version: 1.7 Status: Well-Formed and valid SignatureMatches: PDF-hul MIMEtype: application/pdf PDFMetadata: Objects: 398 FreeObjects: 1 IncrementalUpdates: 0 DocumentCatalog: PageLayout: SinglePage PageMode: UseNone Outlines: Item: Title: Introduction Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@4923ab24 Item: Title: Materials and Methods Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@44c8afef Children: Item: Title: 3D FEA Models and Tissue Properties Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@7b69c6ba Item: Title: Loading Scenario Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@46daef40 Item: Title: Analysis of Stress Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@12f41634 Item: Title: Results Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@13c27452 Children: Item: Title: Mean Stress Values of the Periodontal Ligament and Tooth for Each Scenario Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@262b2c86 Item: Title: Distribution of the Stress of the Tooth Structure for Mesial Load Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@371a67ec Item: Title: Distribution of the Stress of the Tooth Structure for Palatal Inclination Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@5ed828d Item: Title: Distribution of the Stress of the Tooth Structure for Rotation Scenario Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@50d0686 Item: Title: Discussion Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@7a3d45bd Item: Title: Conclusions Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@1e7c7811 Item: Title: References Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@77ec78b9 Info: Title: Orthodontic Loads in Teeth after Regenerative Endodontics: A Finite Element Analysis of the Biomechanical Performance of the Periodontal Ligament Author: Cristina Bucchi, Massimo Del Fabbro and Jordi Marcé-Nogué Subject: 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. 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