How does arch form and interproximal contact size affect the 3D displacements and rotations of teeth: a finite element analysis
ABSTRACT Objective: The objective of this study was to determine how arch form and interproximal contact size displace mandibular teeth subjected to an anterior component of force (ACF). Methods: Nine finite element models (FEM) of the mandibular arch were developed using Ansys® v. 16.0 software....
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Dental Press Editora
2024-01-01
|
| Series: | Dental Press Journal of Orthodontics |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2176-94512023000600300&tlng=en |
| _version_ | 1797361172280770560 |
|---|---|
| author | Andrea ÁLVAREZ Santiago Alberto CORREA Peter H. BUSCHANG Samuel I. ROLDÁN |
| author_facet | Andrea ÁLVAREZ Santiago Alberto CORREA Peter H. BUSCHANG Samuel I. ROLDÁN |
| author_sort | Andrea ÁLVAREZ |
| collection | DOAJ |
| description | ABSTRACT Objective: The objective of this study was to determine how arch form and interproximal contact size displace mandibular teeth subjected to an anterior component of force (ACF). Methods: Nine finite element models (FEM) of the mandibular arch were developed using Ansys® v. 16.0 software. They were designed to evaluate the effects of three arch forms (triangular, oval, and square) and three contact sizes (point-to-point, 1 mm diameter, and 2 mm diameter). All nine models were subjected to an ACF of 53.8 N (5486 gm). Three-dimensional tooth rotations and displacements of the mandibular teeth were evaluated, from the right first molar to the left first molar. Results: Arch form had a greater effect on tooth movements than contact size. Triangular arches and point-to-point contacts produced the greatest displacements and rotations of teeth. Oval arches with 2 mm wide interproximal contact points showed the greatest stability. The right first premolar showed the greatest displacements in all of the models. Conclusions: Arch form and contact size affect interproximal tooth stability. Teeth are least stable in narrow arches with point-to-point interproximal contacts, and most stable in wider arches with larger contacts. |
| first_indexed | 2024-03-08T15:50:07Z |
| format | Article |
| id | doaj.art-c5e7f6823c8e4bafa8202b5b994f5201 |
| institution | Directory Open Access Journal |
| issn | 2177-6709 |
| language | English |
| last_indexed | 2024-03-08T15:50:07Z |
| publishDate | 2024-01-01 |
| publisher | Dental Press Editora |
| record_format | Article |
| series | Dental Press Journal of Orthodontics |
| spelling | doaj.art-c5e7f6823c8e4bafa8202b5b994f52012024-01-09T07:39:12ZengDental Press EditoraDental Press Journal of Orthodontics2177-67092024-01-0128610.1590/2177-6709.28.6.e232381.oarHow does arch form and interproximal contact size affect the 3D displacements and rotations of teeth: a finite element analysisAndrea ÁLVAREZhttps://orcid.org/0009-0008-5071-6388Santiago Alberto CORREAhttps://orcid.org/0000-0003-1202-7588Peter H. BUSCHANGhttps://orcid.org/0000-0003-4397-6815Samuel I. ROLDÁNhttps://orcid.org/0000-0001-7734-992XABSTRACT Objective: The objective of this study was to determine how arch form and interproximal contact size displace mandibular teeth subjected to an anterior component of force (ACF). Methods: Nine finite element models (FEM) of the mandibular arch were developed using Ansys® v. 16.0 software. They were designed to evaluate the effects of three arch forms (triangular, oval, and square) and three contact sizes (point-to-point, 1 mm diameter, and 2 mm diameter). All nine models were subjected to an ACF of 53.8 N (5486 gm). Three-dimensional tooth rotations and displacements of the mandibular teeth were evaluated, from the right first molar to the left first molar. Results: Arch form had a greater effect on tooth movements than contact size. Triangular arches and point-to-point contacts produced the greatest displacements and rotations of teeth. Oval arches with 2 mm wide interproximal contact points showed the greatest stability. The right first premolar showed the greatest displacements in all of the models. Conclusions: Arch form and contact size affect interproximal tooth stability. Teeth are least stable in narrow arches with point-to-point interproximal contacts, and most stable in wider arches with larger contacts.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2176-94512023000600300&tlng=enCrowdingArch formInterproximal contactsAnterior component of forceInterproximal enamel reduction |
| spellingShingle | Andrea ÁLVAREZ Santiago Alberto CORREA Peter H. BUSCHANG Samuel I. ROLDÁN How does arch form and interproximal contact size affect the 3D displacements and rotations of teeth: a finite element analysis Dental Press Journal of Orthodontics Crowding Arch form Interproximal contacts Anterior component of force Interproximal enamel reduction |
| title | How does arch form and interproximal contact size affect the 3D displacements and rotations of teeth: a finite element analysis |
| title_full | How does arch form and interproximal contact size affect the 3D displacements and rotations of teeth: a finite element analysis |
| title_fullStr | How does arch form and interproximal contact size affect the 3D displacements and rotations of teeth: a finite element analysis |
| title_full_unstemmed | How does arch form and interproximal contact size affect the 3D displacements and rotations of teeth: a finite element analysis |
| title_short | How does arch form and interproximal contact size affect the 3D displacements and rotations of teeth: a finite element analysis |
| title_sort | how does arch form and interproximal contact size affect the 3d displacements and rotations of teeth a finite element analysis |
| topic | Crowding Arch form Interproximal contacts Anterior component of force Interproximal enamel reduction |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2176-94512023000600300&tlng=en |
| work_keys_str_mv | AT andreaalvarez howdoesarchformandinterproximalcontactsizeaffectthe3ddisplacementsandrotationsofteethafiniteelementanalysis AT santiagoalbertocorrea howdoesarchformandinterproximalcontactsizeaffectthe3ddisplacementsandrotationsofteethafiniteelementanalysis AT peterhbuschang howdoesarchformandinterproximalcontactsizeaffectthe3ddisplacementsandrotationsofteethafiniteelementanalysis AT samueliroldan howdoesarchformandinterproximalcontactsizeaffectthe3ddisplacementsandrotationsofteethafiniteelementanalysis |