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Table 3 Association between the responses to time-related knowledge and practice during the restoration of ETT and post-placement with the specialty of a sample of Saudi dentists (n = 203)

From: Do dentists practice what they know? A cross-sectional study on the agreement between dentists' knowledge and practice in restoring endodontically treated teeth

Aspects Knowledge n (%) Χ2-value p value Practice n (%) Χ2-value p value
Time-related aspects GDP Resto Endo GDP Resto Endo
6. Time from obturation to start PSP?     5.96 0.427     28.69  < 0.001*
Immediately after obturation 29(24.2) 24(35.3) 7(46.7)    15(12.5) 6(8.8) 9(60.0)   
1–7 days after obturation 48(40.0) 26(38.2) 4(26.7)    74(61.7) 39(57.4) 5(33.3)   
2–4 weeks after obturation 20(16.7) 8(11.8) 1(6.7)    18(15.0) 12(17.6) 0(0)  
More than a month after obturation or duration of time is irrelevant 23(19.2) 10(14.7) 3(20.0)    13(10.8) 11(16.2) (6.7)   
7. Time of PSP in presence of periapical lesion?     58.40  < 0.001*     50.68  < 0.001*
Immediately after RCT 7(5.8) 15(22.1) 10(66.7)    6(5.0) 15(22.1) 10(66.7)   
One week after RCT 9(7.5) 18(26.5) 2(13.3)    15(12.5) 16(23.5) 2(13.3)   
6 months after RCT 20(16.7) 7(10.3) 1(6.7)    19(15.8) 9(13.2) 1(6.7)   
Until there is evidence of periapical healing 84(70.0) 28(41.2) 2(13.3)    80(66.7) 28(41.2) 2(13.3)   
8. Acceptable time from PSP until cementing the cast post and core?     6.24 0.397     6.27 0.547
Less than 1 week 46(38.3) 31(45.0) 9(60.0)    25(21.9) 17(25.4) 0   
1 week 42(35.0) 26(38.2) 4(26.7)    42(36.8) 32(47.8) 4(66.7)   
2 weeks 30(25.0) 9(13.2) 2(13.3)    28(24.6) 11(16.4) 1(16.7)   
More than 2 weeks 2(1.7) 2(2.9) 0    19(16.7) 7(10.4) 1(16.7)   
9. Acceptable time duration from post cementation until cementation of the final crown?     18.27 0.006*     17.39 0.008*
Less than 1 week 33(27.5) 12(17.6) 3(20.0)    22(19.1) 3(4.5) 0   
From 1–2 weeks 61(50.8) 28(41.2) 6(40.0)    52(45.2) 28(41.8) 0   
From 2–4 weeks 25(20.8) 18(26.5) 5(33.3)    32(27.8) 23(33.8) 3(75.1)   
More than 1 month 1(0.8) 10(14.7) 1(6.7)    9(7.8) 13(19.1) 1(31.2)   
  1. GDP general dental practitioner, Resto. restorative specialist, Endo. Endodontist, PSP post space preparation, ETT endodontically treated teeth
  2. *Statistically significant at p < 0.05. Remaining endodontists did not answer since the situation/question did not apply to them, and they were excluded from the statistical test