Interventions for accelerating orthodontic tooth movement: a systematic review.
OBJECTIVE
To evaluate the effectiveness of interventions on accelerating orthodontic tooth movement.


METHODS
We searched the databases of PubMed, Embase, Science Citation Index, CENTRAL, and SIGLE from January 1990 to August 2011 for randomized or quasi-randomized controlled trials that assessed the effectiveness of interventions on accelerating orthodontic tooth movement. The processes of study search, selection, and quality assessment were conducted independently in duplicate by two review authors. Original outcome data, if possible, underwent statistical pooling by using Review Manager 5.


RESULTS
Through a predefined search strategy, we finally included nine eligible studies. Among them, five interventions were studied (ie, low-level laser therapy, corticotomy, electrical current, pulsed electromagnetic fields, and dentoalveolar or periodontal distraction). Six outcomes were evaluated in these studies (ie, accumulative moved distance or movement rate, time required to move tooth to its destination, anchorage loss, periodontal health, pulp vitality, and root resorption).


CONCLUSIONS
Among the five interventions, corticotomy is effective and safe to accelerate orthodontic tooth movement, low-level laser therapy was unable to accelerate orthodontic tooth movement, current evidence does not reveal whether electrical current and pulsed electromagnetic fields are effective in accelerating orthodontic tooth movement, and dentoalveolar or periodontal distraction is promising in accelerating orthodontic tooth movement but lacks convincing evidence.
State Key Laboratory of Oral Diseases, Department of Orthodontics, West China School of Stomatology, Sichuan University, Chengdu, Sichuan, China.
Hu
H
Long
Ujjwal
U
Pyakurel
Yan
Y
Wang
Lina
L
Liao
Yang
Y
Zhou
Wenli
W
Lai
D057186:Comparative Effectiveness Research; D055094:Evidence-Based Dentistry; D006801:Humans; D016032:Randomized Controlled Trials as Topic; D014087:Tooth Movement Techniques / Q000379:methods*; D016896:Treatment Outcome