Meta-analysis: Micro-osteoperforation Speeds Tooth Movement Modestly

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Posted: May 21, 2026

Meta-analysis: Micro-osteoperforation Speeds Tooth Movement Modestly

Edited by Dentaltown staff

A meta-analysis of 16 randomized controlled trials concluded that micro-osteoperforation accelerates orthodontic tooth movement over a three-month period but that the magnitude of the effect is not clinically significant, the authors reported in Frontiers in Dental Medicine.

The review, published online May 14 by a team led by Shu-Hong Ching of West China Hospital, screened 1,175 records and included 16 RCTs published between 2020 and 2025 involving a total of 459 patients. The analysis evaluated short-term efficacy, safety, and application parameters of micro-osteoperforation, an adjunctive procedure in which small cortical bone perforations are made near teeth targeted for movement to trigger a localized regional acceleratory response.

On primary outcomes, the pooled analysis found a statistically detectable acceleration in tooth movement at three months, but the difference between micro-osteoperforation groups and controls did not reach a threshold the authors considered clinically meaningful. The finding aligns with prior systematic reviews that have reported similar disconnects between statistical and clinical significance in micro-osteoperforation research.

Safety data drew more uniform conclusions. Across eight RCTs assessing pain and quality of life, micro-osteoperforation did not increase pain levels relative to controls. Four RCTs evaluated root resorption, and the pooled data did not show a significant increase. The authors reported no significant anchorage loss and characterized periodontal effects as mild and transient.

Subgroup analyses pointed to application-parameter signals that the authors said warrant further study. Mandibular micro-osteoperforation and repeated micro-osteoperforation application produced different effect estimates than the overall pooled result. Eleven of the 16 included studies focused on maxillary tooth movement, leaving mandibular data relatively limited.

The review was authored by Ching, Xiaozhe Wang, Danyang Li, and colleagues, with the corresponding article published open-access under a Creative Commons license. The authors classified the evidence certainty as limited and concluded that more rigorous randomized controlled trials are needed to confirm the clinical benefits of micro-osteoperforation.

Acceleration techniques have drawn sustained interest as orthodontic patients increasingly weigh treatment length against alternative approaches such as clear aligner therapy and surgically assisted methods. Cochrane reviewers and other meta-analysts have repeatedly flagged protocol heterogeneity, small sample sizes, and short follow-up windows as ongoing barriers to firm clinical recommendations on micro-osteoperforation.

Sources:
Frontiers in Dental Medicine, “Micro-osteoperforation for accelerating orthodontic tooth movement: a meta-analysis of short-term efficacy, safety, and optimal application parameters,” Shu-Hong Ching et al., published online May 14, 2026, DOI 10.3389/fdmed.2026.1814419: frontiersin.org/journals/dental-medicine/articles/10.3389/fdmed.2026.1814419/full
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