A prospective, split-mouth, clinical study of orthodontic titanium miniscrews with machined and acid-etched surfaces

Hyo Jin Park, Sung Hwan Choi, Yoon Jeong Choi, Young Bum Park, Kwang Mahn Kim, Hyung Seog Yu

Research output: Contribution to journalArticle

Abstract

Objectives: To determine whether the success rate and primary stability of surface-Treated miniscrews differ from those of nontreated miniscrews. Materials and Methods: Patients who required one or more miniscrews for the same reason in each quadrant were recruited into a single-blinded, split-mouth, randomized, controlled trial with a 1:1 allocation ratio. Self-drilling miniscrews with two surface types were used: Those with no surface treatment, and those with an acid-etched surface treatment. The cumulative success rate and primary stability of each type of miniscrew were examined, and factors potentially affecting the success and failure of miniscrews were investigated. Results: Forty patients were included in the study, with a total of 98 orthodontic miniscrews. The overall success rate was 88.8%, and the respective success rates for acid-etched and machined surface miniscrews were 91.8% and 85.7%. The respective mean insertion torques were 13.62 6 5.95 N-cm and 13.38 6 4 N-cm, and periotest values measured immediately after insertion were -0.50 6 2.77 for acid-etched miniscrews and -0.28 6 3.36 for machined surface miniscrews. There was no significant difference in the mean insertion torques and periotest values according to surface treatment and jaw. Conclusions: Neither the success rate nor the primary stability of acid-etched surface miniscrews and machined surface miniscrews differed significantly. There is a high possibility that miniscrews will fall out in patients who have an open bite or those who require total distalization. & copy 2019 by The EH Angle Education and Research Foundation, Inc.

Original languageEnglish
Pages (from-to)411-417
Number of pages7
JournalAngle Orthodontist
Volume89
Issue number3
DOIs
Publication statusPublished - 2019 Jan 1

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Orthodontics
Titanium
Mouth
Acids
Torque
Open Bite
Jaw
Therapeutics
Randomized Controlled Trials
Education
Clinical Studies
Research

All Science Journal Classification (ASJC) codes

  • Orthodontics

Cite this

Park, Hyo Jin ; Choi, Sung Hwan ; Choi, Yoon Jeong ; Park, Young Bum ; Kim, Kwang Mahn ; Yu, Hyung Seog. / A prospective, split-mouth, clinical study of orthodontic titanium miniscrews with machined and acid-etched surfaces. In: Angle Orthodontist. 2019 ; Vol. 89, No. 3. pp. 411-417.
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title = "A prospective, split-mouth, clinical study of orthodontic titanium miniscrews with machined and acid-etched surfaces",
abstract = "Objectives: To determine whether the success rate and primary stability of surface-Treated miniscrews differ from those of nontreated miniscrews. Materials and Methods: Patients who required one or more miniscrews for the same reason in each quadrant were recruited into a single-blinded, split-mouth, randomized, controlled trial with a 1:1 allocation ratio. Self-drilling miniscrews with two surface types were used: Those with no surface treatment, and those with an acid-etched surface treatment. The cumulative success rate and primary stability of each type of miniscrew were examined, and factors potentially affecting the success and failure of miniscrews were investigated. Results: Forty patients were included in the study, with a total of 98 orthodontic miniscrews. The overall success rate was 88.8{\%}, and the respective success rates for acid-etched and machined surface miniscrews were 91.8{\%} and 85.7{\%}. The respective mean insertion torques were 13.62 6 5.95 N-cm and 13.38 6 4 N-cm, and periotest values measured immediately after insertion were -0.50 6 2.77 for acid-etched miniscrews and -0.28 6 3.36 for machined surface miniscrews. There was no significant difference in the mean insertion torques and periotest values according to surface treatment and jaw. Conclusions: Neither the success rate nor the primary stability of acid-etched surface miniscrews and machined surface miniscrews differed significantly. There is a high possibility that miniscrews will fall out in patients who have an open bite or those who require total distalization. & copy 2019 by The EH Angle Education and Research Foundation, Inc.",
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A prospective, split-mouth, clinical study of orthodontic titanium miniscrews with machined and acid-etched surfaces. / Park, Hyo Jin; Choi, Sung Hwan; Choi, Yoon Jeong; Park, Young Bum; Kim, Kwang Mahn; Yu, Hyung Seog.

In: Angle Orthodontist, Vol. 89, No. 3, 01.01.2019, p. 411-417.

Research output: Contribution to journalArticle

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AU - Choi, Sung Hwan

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AU - Park, Young Bum

AU - Kim, Kwang Mahn

AU - Yu, Hyung Seog

PY - 2019/1/1

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N2 - Objectives: To determine whether the success rate and primary stability of surface-Treated miniscrews differ from those of nontreated miniscrews. Materials and Methods: Patients who required one or more miniscrews for the same reason in each quadrant were recruited into a single-blinded, split-mouth, randomized, controlled trial with a 1:1 allocation ratio. Self-drilling miniscrews with two surface types were used: Those with no surface treatment, and those with an acid-etched surface treatment. The cumulative success rate and primary stability of each type of miniscrew were examined, and factors potentially affecting the success and failure of miniscrews were investigated. Results: Forty patients were included in the study, with a total of 98 orthodontic miniscrews. The overall success rate was 88.8%, and the respective success rates for acid-etched and machined surface miniscrews were 91.8% and 85.7%. The respective mean insertion torques were 13.62 6 5.95 N-cm and 13.38 6 4 N-cm, and periotest values measured immediately after insertion were -0.50 6 2.77 for acid-etched miniscrews and -0.28 6 3.36 for machined surface miniscrews. There was no significant difference in the mean insertion torques and periotest values according to surface treatment and jaw. Conclusions: Neither the success rate nor the primary stability of acid-etched surface miniscrews and machined surface miniscrews differed significantly. There is a high possibility that miniscrews will fall out in patients who have an open bite or those who require total distalization. & copy 2019 by The EH Angle Education and Research Foundation, Inc.

AB - Objectives: To determine whether the success rate and primary stability of surface-Treated miniscrews differ from those of nontreated miniscrews. Materials and Methods: Patients who required one or more miniscrews for the same reason in each quadrant were recruited into a single-blinded, split-mouth, randomized, controlled trial with a 1:1 allocation ratio. Self-drilling miniscrews with two surface types were used: Those with no surface treatment, and those with an acid-etched surface treatment. The cumulative success rate and primary stability of each type of miniscrew were examined, and factors potentially affecting the success and failure of miniscrews were investigated. Results: Forty patients were included in the study, with a total of 98 orthodontic miniscrews. The overall success rate was 88.8%, and the respective success rates for acid-etched and machined surface miniscrews were 91.8% and 85.7%. The respective mean insertion torques were 13.62 6 5.95 N-cm and 13.38 6 4 N-cm, and periotest values measured immediately after insertion were -0.50 6 2.77 for acid-etched miniscrews and -0.28 6 3.36 for machined surface miniscrews. There was no significant difference in the mean insertion torques and periotest values according to surface treatment and jaw. Conclusions: Neither the success rate nor the primary stability of acid-etched surface miniscrews and machined surface miniscrews differed significantly. There is a high possibility that miniscrews will fall out in patients who have an open bite or those who require total distalization. & copy 2019 by The EH Angle Education and Research Foundation, Inc.

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