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Table 7 Type of adverse effects defined as research objectives of the review

From: Seeking adverse effects in systematic reviews of orthodontic interventions: a cross-sectional study (part 1)

Adverse effects related to

Prevalence

Tooth structures

16.7% (8/48)

Periodontal tissues

12.5% (6/48)

Intraoral (non-tooth or periodontal) tissues

0.0% (0/48)

Extraoral tissues (non-temporomandibular tissues)

0.0% (0/48)

Temporomandibular tissues and disorders

2.1% (1/48)

Undesired treatment results

18.8% (9/48)

Relapse and stability

20.8% (10/48)

Negative qualitative experiences by the patient or carer(s)

18.8% (9/48)

Appliance failure

0.0% (0/48)

Gastro-intestinal

0.0% (0/48)

Non-defined

10.4% (5/48)

Additional adverse effects

0.0% (0/48)