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Table 1 The changes in the mean values Ā±standard deviations of Swelling (S), Color (C), Probing Depth (PD), Pain levels, Gingival margin stability (GMS) and Operating time

From: Treatment of excessive gingival display using conventional esthetic crown lengthening versus computer guided esthetic crown lengthening: (a randomized clinical trial)

Ā Ā 

Time Interval

Ā 
Ā Ā 

Baseline

24Ā h

1 week

2 weeks

3 months

6 months

p-value

Swelling score (MeanĀ±SD)

Control group

Ā Ā 

1.25Ā±0.46Ā A

Ā 

0.25Ā±0.46B

0.12Ā±0.35B

0.002*

Study group

Ā Ā 

1.25Ā±0.46Ā A

Ā 

0.25Ā±0.46B

0.00Ā±0.00B

<0.001*

Ā 

p-value

Ā Ā 

1ns

Ā 

1ns

0.382ns

Ā 

Color score (MeanĀ±SD)

Control group

Ā Ā 

1.12Ā±0.64Ā A

Ā 

0.50Ā±0.53B

0.25Ā±0.46B

0.009*

Study group

Ā Ā 

1.38Ā±0.52Ā A

Ā 

0.50Ā±0.53B

0.12Ā±0.35B

0.005*

Ā 

p-value

Ā Ā 

0.460ns

Ā 

1ns

0.587ns

Ā 

Probing depth (mm) (MeanĀ±SD)

Control group

2.85Ā±0.23Ā A

Ā Ā Ā 

2.53Ā±0.32Ā A

2.49Ā±0.44Ā A

0.101ns

Study group

2.86Ā±0.27Ā A

Ā Ā Ā 

2.41Ā±0.26Ā A

2.31Ā±0.16Ā A

0.219ns

Ā 

p-value

0.117ns

Ā Ā Ā 

0.456ns

0.312ns

Ā 

Pain levels

Control group

Ā 

5.12Ā±0.64Ā A

2.75Ā±1.98AB

0.88Ā±0.83B

Ā Ā 

0.001*

Study group

Ā 

4.00Ā±1.41Ā A

1.12Ā±0.83AB

0.25Ā±0.46B

Ā Ā 

<0.001*

Ā 

p-value

Ā 

0.114ns

0.100ns

0.111ns

Ā Ā Ā 

Operating time

Control group

53.88Ā±2.42

Ā Ā Ā Ā Ā Ā 

Study group

44.62Ā±2.33

Ā Ā Ā Ā Ā Ā 
Ā 

p-value

<0.001*

Ā Ā Ā Ā Ā Ā 

Gingival margin stability (mm) (MeanĀ±SD)

Control group

7.15Ā±0.39B

Ā Ā Ā 

8.68Ā±0.44Ā A

8.46Ā±0.44Ā A

<0.001*

Study group

7.12Ā±0.39B

Ā Ā Ā 

8.68Ā±0.44Ā A

8.46Ā±0.44Ā A

<0.001*

Ā 

p-value

0.900ns

Ā Ā Ā 

1ns

1ns

Ā