Journal of Dental Sciences
Volume 6, Issue 4 , Pages 200-204 , December 2011

Pullout strengths of orthodontic palatal mini-implants tested in vitro

  • Ju-Hui Wu

      Affiliations

    • Department of Dentistry, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
    • ,
  • Huang-Chi Wang

      Affiliations

    • School of Dentistry, College of Dental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
    • ,
  • Chun-Ming Chen

      Affiliations

    • Department of Dentistry, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
    • School of Dentistry, College of Dental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
    • ,
  • Pei-Chen Lu

      Affiliations

    • Department of Dentistry, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
    • ,
  • Sheng-Tsung Lai

      Affiliations

    • Department of Dentistry, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
    • School of Dentistry, College of Dental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
    • ,
  • Kun-Tsung Lee

      Affiliations

    • Department of Dentistry, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
    • ,
  • Je-Kang Du

      Affiliations

    • School of Dentistry, College of Dental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
    • Corresponding Author InformationCorresponding author. Department of Dentistry, Kaohsiung Medical University Hospital, 100 Tzyou 1st Road, Kaohsiung 80708, Taiwan.

Received 11 August 2011 ,Accepted 3 October 2011.

  • Image Result

    From left to right: Bio-Ray (2.0×8mm), Absoanchor (2.0×8mm), and Lomas (2.0×7mm).

    From left to right: Bio-Ray (2.0×8mm), Absoanchor (2.0×8mm), and Lomas (2.0×7mm).

  • Image Result

    The Bio-Ray (2.0×8mm) was inserted into the anterior palatal region.

    The Bio-Ray (2.0×8mm) was inserted into the anterior palatal region.

  • Image Result

    The thickness of anterior palatal mucosa was designed as 3mm and an Absoanchor (2.0×8mm) was self-drill inserted into the Sawbones (cortical bone: 2mm thickness; cancellous bone: 20mm thickness) with

    The thickness of anterior palatal mucosa was designed as 3mm and an Absoanchor (2.0×8mm) was self-drill inserted into the Sawbones (cortical bone: 2mm thickness; cancellous bone: 20mm thickness) with 5mm depth.

  • Image Result
    The digital torque meter (Lutron).

    The digital torque meter (Lutron).

  • Image Result
    An orthodontic wire (0.018 inch) was passed through the hole of the mini-implant and the n tied into the material testing machine (Lloyd). (A) Vertical pullout test; (B) horizontal pullout test.

    An orthodontic wire (0.018 inch) was passed through the hole of the mini-implant and the n tied into the material testing machine (Lloyd). (A) Vertical pullout test; (B) horizontal pullout test.

  • Image Result
    Power chain was tested for breaking force.

    Power chain was tested for breaking force.

  • Image Result
    An optical measuring projector (Starrett) projects the dimension of the Absoanchor mini-implant.

    An optical measuring projector (Starrett) projects the dimension of the Absoanchor mini-implant.

PII: S1991-7902(11)00077-8

doi: 10.1016/j.jds.2011.09.003

Journal of Dental Sciences
Volume 6, Issue 4 , Pages 200-204 , December 2011

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