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Skeletal and Dental Effectiveness of Treatment of Class II Malocclusion With Headgear: A Systematic Review and Meta-analysis.

Nucera, Riccardo; Militi, Angela; Lo Giudice, Antonino; Longo, Vanessa; Fastuca, Rosamaria; Caprioglio, Alberto; Cordasco, Giancarlo; Papadopoulos, Moschos A.
J Evid Based Dent Pract; 18(1): 41-58, 2018 03.
Artigo em Inglês | MEDLINE | ID: mdl-29478681

OBJECTIVE:

To evaluate the skeletal and dental effects of headgear treatment by systematically reviewing the best available scientific evidence. MATERIALS AND

METHODS:

A survey of articles published up to February 2017 investigating the effects of headgear in the treatment of patients with class II malocclusion was performed using 19 electronic databases. Only randomized clinical trials and prospective controlled clinical trials investigating growing patients with class II malocclusion treated with headgear were included. Two authors performed independently study selection, data extraction, and risk of bias assessment. All pooled data analyses were performed using the random-effect model. Statistical heterogeneity was evaluated.

RESULTS:

In total, 6 trials were included (4 randomized clinical trials and 2 prospective controlled clinical trials), grouping data from 337 patients (170 treated patients and 167 untreated controls). The ages of the patients varied across the studies, but the majority of the trials had a sample with an age range between 8 and 9 years. The times of daily wear of the appliance varied across studies from 8 to 14 h/d. The significant mean differences in treatment effects compared with the untreated controls were -1.41° per year for SNA angle cephalometric parameter (95% confidence interval [CI] -2.25° to -0.56°), -0.57 mm/y for anterior maxillary displacement (95% CI -0.75 to -0.40 mm), -1.42° per year for ANB angle cephalometric parameter (95% CI -2.12° to -0.72°), and -1.31 mm/y for the overjet cephalometric parameter (95% CI -2.34 to -0.29 mm).

CONCLUSION:

Headgear treatment is effective in restricting sagittal maxillary growth and reducing the overjet in the short term.
Selo DaSilva