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Table 1 Illustration of information of included studies

From: The effect of retrograde material type and surgical techniques on the success rate of surgical endodontic retreatment: systematic review of prospective randomized clinical trials

 

Jensen et al. [11]

Chong et al. [12]

Platt and Wannfors [13]

Lindeboom et al. [14]

Christiansen et al. [15] to Kruse et al. [20]

Walivaara etal. [16]

Walivaara et al. [17]

Song and Kim [18] and Kim et al. [19]

Zhou et al. [21]

Trial design:

RCT

RCT

RCT

RCT

RCT

RCT

RCT

RCT

RCT

Location:

Denmark

London

Sweden

Netherland

Denmark

Sweden

Sweden

Korea

China

Recruitment period:

?

?

?

1/2000 –12/2002

?

?

9/2006 –12/208

2/2003–10/2010

12/2012–2/2015

Source of funding:

?

√

?

√

√

?

?

√

?

Ethical approval

√

√

√

√

√

?

?

√

√

Informed consent

?

?

?

?

√

?

?

√

√

Eligibility criteria

IC

√

IC

√

IC

IC

IC

√

√

Number of surgeons

4

2

1

3

1

2

2

1

1

Blindness of the patients/operator/ evaluator

?/ × /√

?/?/√

 × / × /?

√/?/√

?/ × /?

?/ × /?

?/ × /?

?/ × /√

?/?/√

Sample size

134Pt/134T

183 Pt/183T

28 Pt/34T

90Pt/100T

44Pt/52T

139Pt/160T

164 Pt/206T

260Pt/260T

240Pt/240T

S.S cal

√

√

 × 

√

 × 

 × 

 × 

√

√

After 1 year F. up

122Pt/122T

122 Pt/122 T

28 Pt/34 T

90 Pt/100 T

39 Pt/46 T

131pt/147 T

153pt/194 T

192Pt/192 T

120Pt/120 T

More than 1 years F. up

 × 

 × 

 × 

 × 

39 teeth

6 years

 × 

12–21 Month

182

4 years

 × 

Drop out

12Pt/12 T

61 Pt/61 T

 × 

 × 

5 Pt/6 T(1Y)

13 teeth (6Y)

8 Pt/13 T

9 Pt/12 T

68Pt (1Y)

10Pt (4Y)

82 Pt/82 T

Age at baseline

Age range of 49

?

33–83

17–64

Average 43.4

Range 30–77 years mean 54.6

Average 58.5

–

 ≤ 20 and ≥ 60

Frequency per age range

 ≤ 45 = 136, > 45 = 22

Gender

F/M ratio = 1.8:1

?

45% Female

57 F/33 M

24F/20 M

81 F/58 M

99 F/65 M

69 F/123 M

94 F/64 M

Smokers

48%

?

?

?

16/44

?

?

?

?

Clinical variables analysis

√

 × 

IC

 × 

√

 × 

IC

IC

√

Teeth treated

Max 27Ant 39Pm16 M

Mand 6 Ant, 16Pm, 30 M

Ant teeth 1st PM, MB root of molar

Ant teeth

Single rooted ant teeth and PM

Max

17 incisors/24 canines and PM

Mand 11 canines and PM

46 Incisor

10 Canine

42 PM

49 M

40 Incisor

16 Canine

57 PM

81 M

Max 73 Ant

31 PM

28 M

Mand 21Ant, 11 PM, 28 M

Ant 113

PM 19

M 26

Size of lesion

 < 5 mm = 52, 5–10 mm = 35, > 10 mm = 6

?

?

not > 10 mm

?

?

 < 5 mm = 56, 5–9 mm = 102, > 9 mm = 36

?

Not > 10 mm

Use of magnification

 × 

√

 × 

√

√

√

√

√

√

Use of ultrasonic preparation

 × 

√

 × 

√

√

√

√

√

√

Angel of resection (bevelling)

√

 × 

√

√

 × 

√

√

 × 

 × 

Antibiotics prophylaxis

√

√

 × 

 × 

√

 × 

 × 

√

 × 

Comparison

Retro Plast

CS GI

MTA versus IRM

Compomer Dyract versus Ketac Silver GI

MTA versus IRM

(MTA) versus smoothening of orthograde gutta-percha root filling

Ultrafill Gutta Percha versus IRM

IRM versus super EBA

MTA versus super EBA

MTA versus I root Bp plus

  1. √ = yes, ? = not clear / not available, ×  = no, RCT = randomized clinical trial, IC = incomplete, S. Scal = sample size calculation, F. UP = follow up, MTA = mineral trioxide aggregate, IRM = intermediate restorative material, EBA = ethoxy benzoic acid CS = chelon silver GI = glass ionomer, Pt = patient, T = tooth, Max = maxillary, Mand = mandibular, ANT = anterior, PM = premolar, M = molar