Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
Randomized Controlled Trial
. 2020 Sep 1;90(5):634-639.
doi: 10.2319/111119-712.1.

Comparison of orthodontic space closure using micro-osteoperforation and passive self-ligating appliances or conventional fixed appliances

Rashmi Mittal, Sonal Attri, Puneet Batra, Saurabh Sonar, Karan Sharma, Sreevatsan Raghavan
Randomized Controlled Trial

Comparison of orthodontic space closure using micro-osteoperforation and passive self-ligating appliances or conventional fixed appliances

Rashmi Mittal et al. Angle Orthod. .

Abstract

Objectives: To examine the effect of micro-osteoperforation (MOP) on the space closure rate using passive self-ligating or conventional brackets.

Materials and methods: This was a two-arm parallel randomized controlled trial undertaken at the outpatient department of a dental college. There were 60 participants (30 women and 30 men) who fulfilled the inclusion criteria. Both the study and control groups were subjected to MOPs throughout the period of space closure. MOPs were repeated every 28 days. The experimental group (mean age 19.5 ± 1.66 years) was bonded with passive self-ligating brackets while the control group (mean age 19.9 ± 1.13 years) was bonded with conventional brackets. Both groups were examined and compared for rate of space closure. An evaluation was conducted for both groups until the entire extraction space was closed and confirmed by evaluation of a tight contact between the canine and the second premolar using a piece of dental floss.

Results: Before the initiation of retraction, all initial criteria were similar between the two groups (P > .05). No difference was observed between the two groups in the rate of space closure (P > .05).

Conclusions: MOP in conjunction with passive self-ligation does not increase the rate of orthodontic space closure when compared with MOP used with conventional brackets.

Keywords: Micro-osteoperforations; Passive self-ligating appliances; Space closure.

PubMed Disclaimer

Conflict of interest statement

The authors declared no conflict of interest. There was no external source of funding for this trial.

Figures

Figure 1.
Figure 1.
CONSORT flowchart.
See this image and copyright information in PMC

References

    1. Roth RK. Treatment mechanics for the straight wire appliance. In: Graber TM, editor. Current Principles and Techniques in Orthodontics. St Louis, Mo: Mosby; 1985. pp. 665–716.
    1. Bennett J, McLaughlin RP. Fundamentals of Orthodontic Treatment Mechanics. London: Le Grande Publishing; 2014.
    1. Schumacher H, Bourauel C, Drescher D. The effect of the ligature on the friction between bracket and arch. J Orofac Orthop. 1990;51:106–116. - PubMed
    1. Kuruvadi S, Eichmiller F, Kudlick E. Frictional resistance: the interaction of bracket design and archwire alloy. Am J Orthod Dentofac Orthop. 1997;112:355.
    1. Iwasaki LR, Beatty MW, Randall CJ. Clinical ligation forces and intraoral friction during sliding on a stainless steel archwire. Am J Orthod Dentofac Orthop. 2003;123:408–415. - PubMed

Publication types

LinkOut - more resources