Table 5 Inter, intragroup comparisons and summary statistics for crestal bone level (mm).

From: Thermacut bur gingivectomy versus functional crown lengthening in management of subgingival interproximal carious lesions 12 months randomized controlled trial

Time

Measurement

Bone level (mm)

Test statistic

p-value

Intervention

(Thermacut bur gingivectomy)

Control

(Functional crown lengthening)

Preoperative

Mean±SD

1.92±0.32 A

1.96±0.09 C

70.00

0.549ns

Median (IQR)

2.00 (0.60)A

2.00 (0.20)C

Immediate postoperative

Mean±SD

1.76±0.30B

2.50±0.17B

121.00

<0.001*

Median (IQR)

1.90 (0.50)B

2.50 (0.10)B

6 months

Mean±SD

1.79±0.29B

2.60±0.17 A

121.00

<0.001*

Median (IQR)

2.00 (0.40)B

2.60 (0.10)A

1 year

Mean±SD

1.83±0.30 AB

2.62±0.15 A

121.00

<0.001*

Median (IQR)

2.00 (0.40)AB

2.60 (0.10)A

Test statistic

7.98

264.83

  

p-value

<0.001*

<0.001*

  
  1. Values with different superscripts within the same vertical column are significantly different *; significant (p < 0.05).
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