BMC Oral Health

Table 1 Demographic data

From: Subgingival air polishing with trehalose powder during supportive periodontal therapy: use of a conical shaped tip during a randomized clinical trial

	n	%
Gender
Male	30	60
Female	20	40
Ethnic group
Caucasian	50	100
Other	0	0
Smoking status
Non-smokers	36	72
Smokers	14	28

	n	P50	Mean	SD	Min	Max
Age (years)	50	61.5	61.72	10.99	35	87

P50 median, sd standard deviation, min minimum, max maximum

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ISSN: 1472-6831

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