Extra-alveolar miniscrews: are all brands similar?
ABSTRACT Introduction: A wide variety of extra-alveolar orthodontic miniscrews are available. Objective: This study aims to describe and compare the design, and the topographical and mechanical properties of five distinct commercial brands of extra-alveolar miniscrews. Methods: Scanning electron...
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Dental Press Editora
2025-03-01
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| Series: | Dental Press Journal of Orthodontics |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2176-94512025000100302&tlng=en |
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| author | Karina Tostes BORSATO Raissa Mariele BERNARDINO Lucas Arrais CAMPOS Daniela Águida BENTO Luiz Geraldo VAZ Luiz Gonzaga GANDINI JÚNIOR |
| author_facet | Karina Tostes BORSATO Raissa Mariele BERNARDINO Lucas Arrais CAMPOS Daniela Águida BENTO Luiz Geraldo VAZ Luiz Gonzaga GANDINI JÚNIOR |
| author_sort | Karina Tostes BORSATO |
| collection | DOAJ |
| description | ABSTRACT Introduction: A wide variety of extra-alveolar orthodontic miniscrews are available. Objective: This study aims to describe and compare the design, and the topographical and mechanical properties of five distinct commercial brands of extra-alveolar miniscrews. Methods: Scanning electron microscopy (SEM), using 25×, 50×, 100×, and 200× photomicrographs, and in-vitro mechanical tests (driving torque, torsion, and pullout test) to compare extra-alveolar miniscrews (n=80, 2 mm x 12 mm) from the following brands: Bioray, DatSteel, Morelli, OBS, and Peclab. Results: Despite the 2 × 12 mm screw size, only the Morelli and Peclab miniscrews actually measured 12 mm in thread length. The studied brands revealed different thread characteristics (i.e., thread pitch and minor/major diameter). The Morelli miniscrews presented the smallest thread pitch and, consequently, the largest number of threads. Bioray, DatSteel, and OBS miniscrews presented a trapezoidal thread shape, while the others were triangular. SEM showed adequate polishing on the Morelli, OBS, and Peclab miniscrews. The insertion torque was higher than the removal torque for the DatSteel, Morelli, and OBS miniscrews during the driving torque test of the first four threads. The same result occurred with Morelli miniscrews during the driving torque test of the full screw. The resistance limits recorded in the pullout tests were significantly higher than the maximum force used in orthodontic tooth movement. The findings showed no significant differences between the results of the titanium and steel miniscrews. Conclusions: The five types of miniscrews studied presented different characteristics, so the clinician must consider the correct size, number of threads, length, polishing surface, and metallic alloy when choosing the appropriate miniscrew for an application. |
| format | Article |
| id | doaj-art-aae3ce53b099432b9ec39c6091b1fc1f |
| institution | OA Journals |
| issn | 2177-6709 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Dental Press Editora |
| record_format | Article |
| series | Dental Press Journal of Orthodontics |
| spelling | doaj-art-aae3ce53b099432b9ec39c6091b1fc1f2025-08-20T01:50:45ZengDental Press EditoraDental Press Journal of Orthodontics2177-67092025-03-0130110.1590/2177-6709.30.1.e2524221.oarExtra-alveolar miniscrews: are all brands similar?Karina Tostes BORSATOhttps://orcid.org/0000-0002-4535-8335Raissa Mariele BERNARDINOhttps://orcid.org/0000-0003-0636-2152Lucas Arrais CAMPOShttps://orcid.org/0000-0003-1514-5758Daniela Águida BENTOhttps://orcid.org/0009-0000-8909-2228Luiz Geraldo VAZhttps://orcid.org/0000-0003-0916-1962Luiz Gonzaga GANDINI JÚNIORhttps://orcid.org/0000-0001-8656-6010ABSTRACT Introduction: A wide variety of extra-alveolar orthodontic miniscrews are available. Objective: This study aims to describe and compare the design, and the topographical and mechanical properties of five distinct commercial brands of extra-alveolar miniscrews. Methods: Scanning electron microscopy (SEM), using 25×, 50×, 100×, and 200× photomicrographs, and in-vitro mechanical tests (driving torque, torsion, and pullout test) to compare extra-alveolar miniscrews (n=80, 2 mm x 12 mm) from the following brands: Bioray, DatSteel, Morelli, OBS, and Peclab. Results: Despite the 2 × 12 mm screw size, only the Morelli and Peclab miniscrews actually measured 12 mm in thread length. The studied brands revealed different thread characteristics (i.e., thread pitch and minor/major diameter). The Morelli miniscrews presented the smallest thread pitch and, consequently, the largest number of threads. Bioray, DatSteel, and OBS miniscrews presented a trapezoidal thread shape, while the others were triangular. SEM showed adequate polishing on the Morelli, OBS, and Peclab miniscrews. The insertion torque was higher than the removal torque for the DatSteel, Morelli, and OBS miniscrews during the driving torque test of the first four threads. The same result occurred with Morelli miniscrews during the driving torque test of the full screw. The resistance limits recorded in the pullout tests were significantly higher than the maximum force used in orthodontic tooth movement. The findings showed no significant differences between the results of the titanium and steel miniscrews. Conclusions: The five types of miniscrews studied presented different characteristics, so the clinician must consider the correct size, number of threads, length, polishing surface, and metallic alloy when choosing the appropriate miniscrew for an application.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2176-94512025000100302&tlng=enOrthodontic anchorage proceduresCorrective OrthodonticsMechanical testsMicroscopy, Electron, scanning |
| spellingShingle | Karina Tostes BORSATO Raissa Mariele BERNARDINO Lucas Arrais CAMPOS Daniela Águida BENTO Luiz Geraldo VAZ Luiz Gonzaga GANDINI JÚNIOR Extra-alveolar miniscrews: are all brands similar? Dental Press Journal of Orthodontics Orthodontic anchorage procedures Corrective Orthodontics Mechanical tests Microscopy, Electron, scanning |
| title | Extra-alveolar miniscrews: are all brands similar? |
| title_full | Extra-alveolar miniscrews: are all brands similar? |
| title_fullStr | Extra-alveolar miniscrews: are all brands similar? |
| title_full_unstemmed | Extra-alveolar miniscrews: are all brands similar? |
| title_short | Extra-alveolar miniscrews: are all brands similar? |
| title_sort | extra alveolar miniscrews are all brands similar |
| topic | Orthodontic anchorage procedures Corrective Orthodontics Mechanical tests Microscopy, Electron, scanning |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2176-94512025000100302&tlng=en |
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