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Table 2 Overview of the quality of included studies

From: Coronectomy as a surgical approach to impacted mandibular third molars: a systematic review

Study

Study design

Sample description

Radiographic evaluation

Treatment description

Follow-up development

Clinical outcomes description

Adequacy of statistical analysis

Previous estimate of sample size

Quality score

Judged quality standard

O’Riordan et al. [22]

RS

Partial

OPT

Partial

Full

Partial

Descriptive

No

9

Low

Progrel et al. [14]

PCS

Partial

OPT

Partial

Full

Poor

Descriptive

No

8

Low

Renton et al. [7]

RCT

Full

OPT

Full

Full

Full

Inferential

No

15

Medium/High

Dolanmaz et al. [25]

PCS

Full

OPT

Full

Full

Partial

Descriptive

No

11

Low

Hatano et al. [16]

CCT

Full

CBCT

Partial

Full

Full

Inferential

No

14

Medium/High

Leung and Cheung [17].

RCT

Full

OPT

Full

Full

Full

Inferential

Yes

16

High

Cilasun et al. [24]

CCT

Partial

CBCT

Full

Full

Full

Descriptive

No

13

Medium

Goto et al. [61]

PCS

Full

CBCT

Partial

Full

Partial

Inferential

No

12

Medium

Monaco et al. [59]

PCS

Full

CBCT

Full

Full

Full

Inferential

Yes

15

Medium/High

Patel et al. [60]

RS

Partial

CBCT

Full

Partial

Partial

Descriptive

No

10

Low

  1. CBCT: Cone Beam Computed Tomography; CCT: controlled clinical trial; OPT: panoramic radiography; PCS: prospective cohort study; RCT: randomized clinical trial; RS: retrospective study.