Comparison of the primary stability of orthodontic mini-screws manufactured by the Computer Numerically Control and Selective Laser Melting manufacturing methods: An exploratory study

Meriç Öztürk Yaşar; Celal Irgın

Makale detayları

Comparison of the primary stability of orthodontic mini-screws manufactured by the Computer Numerically Control and Selective Laser Melting manufacturing methods: An exploratory study

Yazarlar:

Meriç Öztürk Yaşar | Celal Irgın

Yayıncı:

Selcuk University

Ana Başlıklar:

Dental Materials and Equipment | Orthodontics and Dentofacial Orthopaedics

Dergi:

Selcuk Dental Journal Vol.11 Issue 3, pp.341-345

Belge Tipi:

Makale

Yayın Tarihi:

12/2024

Belge Dili:

İngilizce

Document ID (Org No.):

2001333913

pISSN:

2148-7529

Anahtar kelimeler:

Özet:

 Background: This study was to assess the primary stability of orthodontic mini-screws of the same design produced by a conventional and a novel manufacturing method. Methods: A total of 150 orthodontic mini-screws with a body length of 8 mm, a diameter of 1.6 mm, a button head, and a self-drilling feature were used in the study. Mini-screws were manufactured through computer numerically controlled CNC and selective laser melting SLM manufacturing methods. Titanium T and stainless steel SS alloys were used as manufacturing materials. The study was conducted on three groups; CNC-T, SLM-T and SLM-SS. Mini-screws were placed at 60- and 90-degree angles in fresh bovine femur bones, where the cortical bone thickness was 2 mm. With the radiofrequency analysis RFA technique, the stability of the mini-screws was determined immediately after they were placed F0, immediately after applying orthodontic force to the mini-screw F1, after six hours F6, and after 24 hours F24. Three-way robust ANOVA was used to compare the data, and the Bonferroni correction was statistically applied. Results: Except for the insertion angle of the mini-screw, the group and time factors had statistically significant effects on the RFA values. The highest RFA value was detected in the SLM-T group. Conclusion: Orthodontic mini-screws manufactured from titanium or stainless steel alloys using the SLM technology can be an alternative to mini-screws manufactured using the traditional manufacturing method. The mini-screws manufactured using the SLM technology demonstrated adequate primary stability when subjected to an orthodontic force. Keywords: Orthodontic mini-screw, Primary stability, Selective laser melting, Computer numerical control, Radiofrequency analysis.

 Background: This study was to assess the primary stability of orthodontic mini-screws of the same design produced by a conventional and a novel manufacturing method. Methods: A total of 150 orthodontic mini-screws with a body length of 8 mm, a diameter of 1.6 mm, a button head, and a self-drilling feature were used in the study. Mini-screws were manufactured through computer numerically controlled CNC and selective laser melting SLM manufacturing methods. Titanium T and stainless steel SS alloys were used as manufacturing materials. The study was conducted on three groups; CNC-T, SLM-T and SLM-SS. Mini-screws were placed at 60- and 90-degree angles in fresh bovine femur bones, where the cortical bone thickness was 2 mm. With the radiofrequency analysis RFA technique, the stability of the mini-screws was determined immediately after they were placed F0, immediately after applying orthodontic force to the mini-screw F1, after six hours F6, and after 24 hours F24. Three-way robust ANOVA was used to compare the data, and the Bonferroni correction was statistically applied. Results: Except for the insertion angle of the mini-screw, the group and time factors had statistically significant effects on the RFA values. The highest RFA value was detected in the SLM-T group. Conclusion: Orthodontic mini-screws manufactured from titanium or stainless steel alloys using the SLM technology can be an alternative to mini-screws manufactured using the traditional manufacturing method. The mini-screws manufactured using the SLM technology demonstrated adequate primary stability when subjected to an orthodontic force. Keywords: Orthodontic mini-screw, Primary stability, Selective laser melting, Computer numerical control, Radiofrequency analysis.

 Background: This study was to assess the primary stability of orthodontic mini-screws of the same design produced by a conventional and a novel manufacturing method. Methods: A total of 150 orthodontic mini-screws with a body length of 8 mm, a diameter of 1.6 mm, a button head, and a self-drilling feature were used in the study. Mini-screws were manufactured through computer numerically controlled CNC and selective laser melting SLM manufacturing methods. Titanium T and stainless steel SS alloys were used as manufacturing materials. The study was conducted on three groups; CNC-T, SLM-T and SLM-SS. Mini-screws were placed at 60- and 90-degree angles in fresh bovine femur bones, where the cortical bone thickness was 2 mm. With the radiofrequency analysis RFA technique, the stability of the mini-screws was determined immediately after they were placed F0, immediately after applying orthodontic force to the mini-screw F1, after six hours F6, and after 24 hours F24. Three-way robust ANOVA was used to compare the data, and the Bonferroni correction was statistically applied. Results: Except for the insertion angle of the mini-screw, the group and time factors had statistically significant effects on the RFA values. The highest RFA value was detected in the SLM-T group. Conclusion: Orthodontic mini-screws manufactured from titanium or stainless steel alloys using the SLM technology can be an alternative to mini-screws manufactured using the traditional manufacturing method. The mini-screws manufactured using the SLM technology demonstrated adequate primary stability when subjected to an orthodontic force. Keywords: Orthodontic mini-screw, Primary stability, Selective laser melting, Computer numerical control, Radiofrequency analysis.

 Amaç: Bu çalışmanın amacı, geleneksel ve yeni bir üretim yöntemiyle üretilen aynı tasarıma sahip ortodontik mini vidaların primer stabilitesini değerlendirmekti. Gereç ve Yöntemler: Çalışmada gövde uzunluğu 8 mm, çapı 1.6 mm, düğme başlıklı ve kendinden delme özelliğine sahip toplamda 150 adet ortodontik mini vida kullanıldı. Mini vidalar bilgisayarlı sayısal kontrollü CNC ve seçici lazer eritme SLM üretim yöntemleriyle üretildi. İmalat malzemesi olarak titanyum T ve paslanmaz çelik SS alaşımlar kullanıldı. Çalışma CNC-T, SLM-T ve SLM-SS olmak üzere üç grup üzerinde yürütüldü. Mini vidalar, kortikal kemik kalınlığının 2 mm olduğu taze sığır femur kemiklerine 60 ve 90 derecelik açılarla yerleştirildi. Mini vidaların primer stabiliteleri Radyofrekans analiz RFA tekniği ile mini vidalar yerleştirildikten hemen sonra F0, mini vidalara ortodontik kuvvet uygulandıktan hemen sonra F1, 6 saat sonra F6 ve 24 saat sonra F24 ölçüldü. Verileri karşılaştırmak için üç yönlü robust ANOVA test istatistiği kullanıldı ve Bonferroni düzeltmesi uygulandı. Bulgular: Mini vidaların yerleştirme açısı dışında, grup ve zaman faktörlerinin RFA değerleri üzerinde istatistiksel olarak anlamlı etkileri vardı. En yüksek RFA değeri SLM-T grubunda tespit edildi. Sonuçlar: SLM teknolojisi kullanılarak titanyum veya paslanmaz çelik alaşımlardan üretilen ortodontik mini vidalar, geleneksel üretim yöntemi kullanılarak üretilen mini vidalara alternatif olabilir. SLM teknolojisi kullanılarak üretilen mini vidalar, ortodontik kuvvete maruz kaldıklarında yeterli primer stabilite göstermişlerdir.

Makale detayları

Comparison of the primary stability of orthodontic mini-screws manufactured by the Computer Numerically Control and Selective Laser Melting manufacturing methods: An exploratory study

Yazarlar:

Meriç Öztürk Yaşar | Celal Irgın

Yayıncı:

Selcuk University

Ana Başlıklar:

Dental Materials and Equipment | Orthodontics and Dentofacial Orthopaedics

Dergi:

Selcuk Dental Journal Vol.11 Issue 3, pp.341-345

Belge Tipi:

Makale

Yayın Tarihi:

12/2024

Belge Dili:

İngilizce

Document ID (Org No.):

2001333913

pISSN:

2148-7529

Orthodontic mini-screw

Primary stability

Selective laser melting

Computer numerical control

Radiofrequency analysisOrtodontik mini vida

Primer stabilite

Seçici lazer eritme

Bilgisayarlı sayısal kontrol

Radyofrekans analiz

Sayı

Makale detayları

Yazarlar: Meriç Öztürk Yaşar | Celal Irgın

Yayıncı: Selcuk University

Ana Başlıklar: Dental Materials and Equipment | Orthodontics and Dentofacial Orthopaedics

Dergi: Selcuk Dental Journal Vol.11 Issue 3, pp.341-345

Belge Tipi: Makale

Yayın Tarihi: 12/2024

Belge Dili: İngilizce

Document ID (Org No.): 2001333913

pISSN: 2148-7529

Sayı

Yazarlar:

Meriç Öztürk Yaşar | Celal Irgın

Yayıncı:

Selcuk University

Ana Başlıklar:

Dental Materials and Equipment | Orthodontics and Dentofacial Orthopaedics

Dergi:

Selcuk Dental Journal Vol.11 Issue 3, pp.341-345

Belge Tipi:

Makale

Yayın Tarihi:

12/2024

Belge Dili:

İngilizce

Document ID (Org No.):

2001333913

pISSN:

2148-7529