Risk of Fungal Infection to Dental Patients

Table 1

Contamination level (CFU/mL) of water in five pieces of dental equipment obtained in duplicate at four collection points in two dental clinics of the University of Franca in three different sets (with deionized water, with sterile water, and with replaced plastic connections).

Number of samples	HR			TS			RU			CR
	A	B	Total	A	B	Total	A	B	Total	A	B	Total
SCD1	2	1	3	1	0	1	1	1	2	0	0	0
SCD2	0	0	0	1	1	2	1	1	2	0	0	0
SCD3	2	2	4	0	1	1	19	1	20	1	0	1
SCD4	1	1	2	0	1	1	0	0	0	0	21	21
SCD5	0	3	3	1	20	21	1	1	2	0	20	20
PCD1	2	20	22	2	0	2	3	0	3	0	0	0
PCD2	1	5	6	1	0	1	1	8	9	0	22	22
PCD3	20	6	26	4	12	16	4	6	10	0	5	5
PCD4	21	0	21	1	0	1	1	0	1	0	0	0
PCD5	0	0	0	0	20	20	4	2	6	0	34	34
Mean			8.70			6.60			5.50			10.30
SD			10.10			8.66			6.11			12.68
SE			6.26			5.37			3.79			7.86
UL			14.96			11.97			9.29			18.16
IL			2.44			1.23			1.71			2.44
SCS1	1	0	1	3	0	3	2	0	2	0	0	0
SCS2	0	0	0	0	0	0	0	0	0	0	0	0
SCS3	0	0	0	0	0	0	0	0	0	0	0	0
SCS4	0	2	2	3	0	3	0	0	0	0	5	5
SCS5	0	32	32	0	0	0	0	1	1	0	3	3
PCS1	0	0	0	0	0	0	4	0	4	0	0	0
PCS2	0	0	0	0	0	0	0	0	0	2	0	2
PCS3	1	0	1	0	0	0	0	0	0	1	0	1
PCS4	0	2	2	0	0	0	2	0	2	0	5	5
PCS5	0	1	1	0	0	0	0	0	0	0	1	1
Mean			3.90			0.60			0.90			1.70
SD			9.90			1.26			1.37			2.00
SE			6.14			0.78			0.85			1.24
UL			10.04			1.38			1.75			2.94
IL									0.05			0.46
SCRC1	39	0	39	0	0	0	1	0	1	2	0	2
SCRC2	40	34	74	1	0	1	22	0	22	0	1	1
SCRC3	20	31	51	0	0	0	3	0	3	32	1	33
SCRC4	0	20	20	0	25	25	0	1	1	1	1	2
SCRC5	0	20	20	0	0	0	0	1	1	1	1	2
PCRC1	23	0	23	0	0	0	1	1	2	3	1	4
PCRC2	31	1	32	1	0	1	33	0	33	0	1	1
PCRC3	15	0	15	3	0	3	0	0	0	35	1	36
PCRC4	1	34	35	0	0	0	0	1	1	1	1	2
PCRC5	0	13	13	0	18	18	0	0	0	0	1	1
Mean			32.20			4.80			6.40			8.40
SD			18.86			9.00			11.45			13.80
SE			11.69			5.58			7.10			8.55
UL			43.89			10.38			13.50			16.95
IL			20.51

SCD: Surgical Clinic with deionized water; PCD: Periodontics Clinic with deionized water; SCS: Surgical Clinic with sterile water; PCS: Periodontics Clinic with sterile water; SCRC: Surgical Clinic with replaced plastic connections; PCRC: Periodontics Clinic with replaced plastic connections; SD: standard deviation; SE: standard error; UL: upper limit confidence interval 95%; IL: lower confidence interval 95%; HR: high-revving engine; TS: triple syringes; RU: reservoirs of units (equipment); CR: central reservoir; 1 to 5 refer to the number of pieces of equipment at each collection point (five pieces of equipment for each collection point).