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Table 3 Quality assessment tool of the included studies

From: Skeletal and dentoalveolar effects of class II malocclusion treatment using bi-maxillary skeletal anchorage: a systematic review

Author (year) [references]

Study design

Methodological

Data analysis

Type of study

Consecutive cases (1 )

Sample size (2)

Control group (2)

Selection criteria (2)

Sample size calculation (1)

Outcome measure (4)

Force magnitude (2)

Error of the method (2)

Statistical analysis (2)

Data presentation (2)

Total

(24)

Ozbilek et al. [32]

2

0

1

1

1

1

4

1

2

2

2

17

Al-Dumaini et al. [7]

2

0

2

2

2

1

4

1

2

2

2

20

Manni et al. [33]

2

1

2

1

2

0

4

0

2

2

2

18

Kochar et al. [34]

4

0

2

2

2

1

4

0

2

2

2

21

  1. 1. Type of study: 0, if retrospective study; 2, if prospective study; 4, if randomized controlled clinical trial.
  2. 2. Consecutive cases: 0, if sample comprised inconsecutive patients or if no information regarding this was provided; 1, if sample comprised consecutive patients.
  3. 3. Sample size: 0, if ≤ 10 subjects; 1, if > 10 and ≤ 20 subjects; 2, if > 20 subjects.
  4. 4. Control group: 0, if no control; 1, if active control; 2, if inactive control
  5. 5. Selection criteria: 0, if no cephalometric or dental criteria reported; 1, if cephalometric or dental criteria reported; 2, if cephalometric and dental criteria reported.
  6. 6. Sample size calculation: 0, no sample size calculation; 1, sample size calculation.
  7. 7. Outcome measure: 0, no values reported; 1, anteroposterior or vertical cephalometric measurement reported; 2, anteroposterior and vertical skeletal cephalometric measurement reported; 4 anteroposterior, vertical cephalometric and dental measurement reported.
  8. 8. Force magnitude: 0, if not stated; 1, if stated; 2, if controlled by a force measurement device.
  9. 9. Error of the method: 0, if method error not evaluated; 1, if partially adequate method error analysis; 2, if adequate method error.
  10. 10. Statistical analysis: 0, if inadequate; 2, if adequate.
  11. 11. Data presentation: 0, if inadequate; 1, if P value stated; 2, if any variability measures stated (standard deviation, confidence interval, or range).
  12. From 0 to 13 points: low level of evidence; from 14 to 21 points: medium level of evidence; from 22 to 24 points: high level of evidence
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BMC Oral Health

ISSN: 1472-6831

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