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Table 3 Summary of responses to "Oral hygiene" and their relationship with plaque score

From: Assessment of oral self-care in patients with periodontitis: a pilot study in a dental school clinic in Japan

Oral hygiene Items

Responses and binarization†

Relationship with plaque score

1. Frequency of brushing (per day)

 

P = 0.0354

   none

0 (0)

 

   1x

4 (6)

 

   2x

22 (34)

 

   3x

29 (45)

 

   4x or more

10 (15)

 

2. Use of tooth paste

 

ND

   Yes

61 (95)

 

   No

3 (5)

 

3. Approximal cleaning (use of dental floss or interdental brush)

 

P = 0.0232

   Yes

39 (60)

 

   No

26 (40)

 

4. Use of mouthwash or other products

 

NS

   Yes

25 (38)

 

   No

40 (62)

 
  1. Values are expressed in n (%).
  2. † Responses were grouped into two (as separated by dotted line) and compared with two categories of PCR (≥ 40% vs. < 40%) by Fisher's exact test. P-values less than 0.05 were considered statistically significant.
  3. NS; not significant
  4. ND; not determined