Effect of foraminal enlargement on microcrack formation and apical transportation: a nano-CT assessment
Abstract The aim of this study was to evaluate the foraminal enlargement and its influence on microcrack formation and apical transportation in root canals with apical curvature. Eighteen maxillary lateral incisors with apical curvature were selected by using micro-CT images. Root canals were random...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2023-03-01
|
| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-023-31595-8 |
| _version_ | 1797859978468392960 |
|---|---|
| author | Jader Camilo Pinto Karla de Faria-Vasconcelos André Ferreira Leite Mariano Simón Pedano Juliane Guerreiro-Tanomaru Reinhilde Jacobs Mario Tanomaru-Filho |
| author_facet | Jader Camilo Pinto Karla de Faria-Vasconcelos André Ferreira Leite Mariano Simón Pedano Juliane Guerreiro-Tanomaru Reinhilde Jacobs Mario Tanomaru-Filho |
| author_sort | Jader Camilo Pinto |
| collection | DOAJ |
| description | Abstract The aim of this study was to evaluate the foraminal enlargement and its influence on microcrack formation and apical transportation in root canals with apical curvature. Eighteen maxillary lateral incisors with apical curvature were selected by using micro-CT images. Root canals were randomly divided in two groups (n = 9) according to root canal preparation using two working lengths: 1 mm short of the apical foramen (control group) and 1 mm beyond the apical foramen (foraminal enlargement). For both groups Reciproc Blue R40 was used for root canal instrumentation. Specimens were scanned by nano-CT (UniTOM HR) before and after root canal preparation. Percentage, length, and width of microcracks, and apical transportation were assessed. Kappa, chi‐square and McNemar tests were used for qualitative analyses while paired and unpaired t-test were used for quantitative analyses (α = 0.05). For both groups, rather similar and low percentages of microcracks were observed before root canal preparation (P > 0.05). The foraminal enlargement promoted new microcracks, not observed in the control group. An increase in microcrack length was observed when the foraminal enlargement was performed (P < 0.05). Higher apical transportation was observed when foraminal enlargement was performed (P < 0.05). Foraminal enlargement using a heat-treated reciprocating file size 40 promoted microcracks and higher apical transportation than root canal preparation up to 1 mm short of apical foramen. |
| first_indexed | 2024-04-09T21:38:19Z |
| format | Article |
| id | doaj.art-bb94ff594f284f2f87e8ead0447b6c9c |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-04-09T21:38:19Z |
| publishDate | 2023-03-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-bb94ff594f284f2f87e8ead0447b6c9c2023-03-26T11:10:24ZengNature PortfolioScientific Reports2045-23222023-03-011311710.1038/s41598-023-31595-8Effect of foraminal enlargement on microcrack formation and apical transportation: a nano-CT assessmentJader Camilo Pinto0Karla de Faria-Vasconcelos1André Ferreira Leite2Mariano Simón Pedano3Juliane Guerreiro-Tanomaru4Reinhilde Jacobs5Mario Tanomaru-Filho6Department of Restorative Dentistry, Araraquara Dental School, São Paulo State University (UNESP), School of DentistryOMFS IMPATH Research Group, Department of Imaging and Pathology, Faculty of Medicine, KU Leuven and Oral and Maxillofacial Surgery, University Hospitals LeuvenOMFS IMPATH Research Group, Department of Imaging and Pathology, Faculty of Medicine, KU Leuven and Oral and Maxillofacial Surgery, University Hospitals LeuvenDepartment of Oral Health Sciences, Endodontology and BIOMAT-Biomaterials Research Group, KU Leuven (University of Leuven), UZ Leuven (University Hospitals Leuven), DentistryDepartment of Restorative Dentistry, Araraquara Dental School, São Paulo State University (UNESP), School of DentistryOMFS IMPATH Research Group, Department of Imaging and Pathology, Faculty of Medicine, KU Leuven and Oral and Maxillofacial Surgery, University Hospitals LeuvenDepartment of Restorative Dentistry, Araraquara Dental School, São Paulo State University (UNESP), School of DentistryAbstract The aim of this study was to evaluate the foraminal enlargement and its influence on microcrack formation and apical transportation in root canals with apical curvature. Eighteen maxillary lateral incisors with apical curvature were selected by using micro-CT images. Root canals were randomly divided in two groups (n = 9) according to root canal preparation using two working lengths: 1 mm short of the apical foramen (control group) and 1 mm beyond the apical foramen (foraminal enlargement). For both groups Reciproc Blue R40 was used for root canal instrumentation. Specimens were scanned by nano-CT (UniTOM HR) before and after root canal preparation. Percentage, length, and width of microcracks, and apical transportation were assessed. Kappa, chi‐square and McNemar tests were used for qualitative analyses while paired and unpaired t-test were used for quantitative analyses (α = 0.05). For both groups, rather similar and low percentages of microcracks were observed before root canal preparation (P > 0.05). The foraminal enlargement promoted new microcracks, not observed in the control group. An increase in microcrack length was observed when the foraminal enlargement was performed (P < 0.05). Higher apical transportation was observed when foraminal enlargement was performed (P < 0.05). Foraminal enlargement using a heat-treated reciprocating file size 40 promoted microcracks and higher apical transportation than root canal preparation up to 1 mm short of apical foramen.https://doi.org/10.1038/s41598-023-31595-8 |
| spellingShingle | Jader Camilo Pinto Karla de Faria-Vasconcelos André Ferreira Leite Mariano Simón Pedano Juliane Guerreiro-Tanomaru Reinhilde Jacobs Mario Tanomaru-Filho Effect of foraminal enlargement on microcrack formation and apical transportation: a nano-CT assessment Scientific Reports |
| title | Effect of foraminal enlargement on microcrack formation and apical transportation: a nano-CT assessment |
| title_full | Effect of foraminal enlargement on microcrack formation and apical transportation: a nano-CT assessment |
| title_fullStr | Effect of foraminal enlargement on microcrack formation and apical transportation: a nano-CT assessment |
| title_full_unstemmed | Effect of foraminal enlargement on microcrack formation and apical transportation: a nano-CT assessment |
| title_short | Effect of foraminal enlargement on microcrack formation and apical transportation: a nano-CT assessment |
| title_sort | effect of foraminal enlargement on microcrack formation and apical transportation a nano ct assessment |
| url | https://doi.org/10.1038/s41598-023-31595-8 |
| work_keys_str_mv | AT jadercamilopinto effectofforaminalenlargementonmicrocrackformationandapicaltransportationananoctassessment AT karladefariavasconcelos effectofforaminalenlargementonmicrocrackformationandapicaltransportationananoctassessment AT andreferreiraleite effectofforaminalenlargementonmicrocrackformationandapicaltransportationananoctassessment AT marianosimonpedano effectofforaminalenlargementonmicrocrackformationandapicaltransportationananoctassessment AT julianeguerreirotanomaru effectofforaminalenlargementonmicrocrackformationandapicaltransportationananoctassessment AT reinhildejacobs effectofforaminalenlargementonmicrocrackformationandapicaltransportationananoctassessment AT mariotanomarufilho effectofforaminalenlargementonmicrocrackformationandapicaltransportationananoctassessment |