The effect of sandblasting and acid etching on survival rate of orthodontic miniscrews: a split-mouth randomized controlled trial

Background The aim of this study was to investigate the effect of surface roughening and acid etching on clinical success rate and removal and insertion torque of orthodontic miniscrews. Materials and methods Sixty-two orthodontic miniscrews (Jail Medical Corporation, Seoul, Korea) with the same des...

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Bibliographic Details
Published in:Progress in orthodontics 2021-01, Vol.22 (1), p.2-2, Article 2
Main Authors: Moghaddam, Saeid Foroughi, Mohammadi, Amir, Behroozian, Ahmad
Format: Article
Language:English
Subjects:
Acids
Bone Screws
Dentistry
Etching
Humans
Medicine
Mouth
Orthodontic Anchorage Procedures
Orthodontic Appliance Design
Orthodontic mini screws
Orthodontics
Patients
Sandblasting
Statistical analysis
Surface roughening
Survival
Survival Rate
Torque
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Summary:Background The aim of this study was to investigate the effect of surface roughening and acid etching on clinical success rate and removal and insertion torque of orthodontic miniscrews. Materials and methods Sixty-two orthodontic miniscrews (Jail Medical Corporation, Seoul, Korea) with the same design and dimensions (10-mm length, 2-mm diameter) are divided into two (sandblasted and acid-etched versus control) groups. The sample of the study was 31 patients whose miniscrews were needed for en masse retraction of the upper six anterior teeth. In this split-mouth study, the miniscrews were placed in the attached gingiva between the second premolar and the first molar. The side (left or right) was selected randomly. The miniscrews were loaded 6 weeks after insertion, and the patients were followed up after 3, 6, 10, 14, and 18 weeks and then for 4 weeks interval. Chi-square, correlation, and independent t tests were done using SPSS ver24 to interpret the data. Results The survival rate was 90.3% and 83.9% for the sandblasted and acid-etched versus the control group, respectively. The difference in survival rate was not statistically significant ( p > 0.05). Removal torque was higher for the sandblasted group ( p < 0.05). Younger patients showed less survival rate ( p < 0.05) in both groups. Insertion side, namely, left or right, was not statistically significant. Conclusions Although sandblasting increased removal torque, it did not influence the survival rate of orthodontic miniscrews significantly.
ISSN:2196-1042
1723-7785
2196-1042
DOI:10.1186/s40510-020-00347-z