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Dental units and water retraction
,W
)A
ASSOCIATION
REPORTS
Dental units and water retraction Council on Dental Materials, Instruments, and Equipment
he concern that water retraction in dental units may compromise infection control practices has been expressed by the Council on Dental Materials, Instruments, and Equipment; the Council on Dental Therapeutics1; and the Centers for Disease Control.2'3 In an effort to assist the dental profes sion, the Council on Dental Materials, Instruments, and Equipm ent conducted a survey on dental units and water retrac tion. Inform ation on some older units
T
(Table 1) and currently available units (Table 2) is included. The tables summa rize the responses from the companies. The tables indicate the m anufacturing or supply company, the model of dental unit, and the presence or absence of water retraction, the extent of water retraction (if any), whether it meets the requirement 3.5 in ANSI/ADA specification no. 47 for dental units,4 possible conversion, check valve, valve type, and whether the war ranty status is affected by the conversion.
Requests for information on dental unit water retraction or conversion should be directed to the specific company. As the degree of risk of cross-contamina tion from units with water retraction is not known, it is prudent for handpieces and other items connected to the waterlines of dental units to run and discharge water into a sink or container for at least 2 m inutes after com pleting care on each patient. In addition, allow ing handpieces to run and discharge water into a sink or
Table 1 ■ Absence or presence of water retraction in previously available dental units.*
Company A-Dec Biotec Chayes-Virginia Den tech Dentrex Dentrex Dentrex Forest Medical Midwest Dental Parkell Products Parkell Products Parkell Products Parkell Products Pel ton 8c Crane Pel ton 8c Crane
Model All older units All units Before 1/1/72 All models All models Before 1/15/87 Freedom series Before 5 /1 /8 7 Trayaire series Before 5 /1 /8 7 M ini units Before 5 /1 /8 7 All models Before 9/86 210 dental unit Before 9 /0 3 /7 8 Du-all Before 3 /1 /8 7 Trac 3 model II Before 3 /1 /8 7 ETI units Before 3 /1 /8 7 Air drive all Before 3 /1 /8 7 Ranger Centric
Water retraction
Extent of water retraction
Specification requirement 3.5
Yes Yes
Conversion
Check valve
Poss No
Poss No
Yes Yes
0.65 in
Meets
Poss Poss
Poss
No
0-1.59 mm
Meets
Poss
Poss
No
0-1.59 mm
Meets
Poss
Poss
No
0-1.59 mm
Meets
Poss
Poss
Yes
Poss
Poss
Yes
Poss
Poss
Valve type
Warranty status
ADI 05-04-01
OK
Clippard MCV-1
N /A f
Yes
10 in
No
No
Poss
OK
Yes
10 in
No
No
Poss
OK
Yes
10 in
No
No
Poss
OK
Yes
10 in
No
No
Poss
OK
Yes Yes
*Data in Table 1 are based on information supplied by the manufacturers. fN o t applicable.
JADA, Vol. 116, M arch 1988 ■ 417
ASSOCIATION
REPORTS
Table 2 ■ Absence or presence of water retraction in currently available dental u n its/
Company
Model
Water retraction
A-Dec A-Dec A-Dec A-Dec A-Dec A-Dec A-Dec A-Dec A-Dec A-Dec A-Dec A-Dec A-Dec A-Dec A-Dec A-Dec A-Dec A-Dec A-Dec A-Dec A-Dec A-Dec A-Dec A-Dec A-Dec A-Dec A-Dec A-Dec A-Dec A-Dec A-Dec A-Dec A-Dec A-Dec A-Dec A-Dec A-Dec A-Dec A-Dec A-Dec Ampco Ampco Ampco Ampco Ampco Ampco Am pco Am pco Am pco Ampco Am pco Am pco Am pco Am pco Am pco Ampco Am pco Ampco Am pco Ampco Ampco Belm ont Belm ont Belmont Belmont Belmont Biotec
2030 2031 2040 2041 2042 2070 2071 2072 2080 2081 2082 2090 2091 2092 2502 2522 2541 2542 2543 2551 2902 3002 3022 3030 3042 3110 3406 3413 3414 3415 3416 3417 4100 4112 4200 4220 4225 4230 4233 4300 20-390 20-385 20-485 20-490 20-475 20-585 20-590 20-270 20-260 20-410 20-380 20-540 20-250 20-413 20-414 20-625 20-516 20-650 20-655 20-660 20-665 056/057 Power wall models 400 series Trans-it 901 Trans-it 902 A ll units
No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No O ptional Optional O ptional O ptional O ptional O ptional Optional O ptional Optional O ptional Optional Optional O ptional Optional Optional O ptional Optional O ptional Optional Optional Optional Yes Yes Yes Yes Yes Yes
418 ■ JADA, Vol. 116, M arch 1988
Extent of water retraction
Specification requirement 3.5
Conversion
Check valve
Valve type
Warranty status
None N one N one N one N one N one N one N one N one N one N one N one N one None N one N one None N one N one N one N one N one N one N one N one N one N one N one N one N one N one N one N one N one N one N one N one N one N one N one N one N one N one None None None N one N one N one None N one None None None N one None N one N one N one N one N one < 0.80 in <0.80 in <0.80 in <0.80 in <0.80 in
Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets
N /A f N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss No No No No No No
N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss
N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A ADI 05-04-01 ADI 05-04-01 ADI 05-04-01 ADI 05-04-01 ADI 05-04-01 ADI 05-04-01 ADI 05-04-01 ADI 05-04-01 ADI 05-04-01 ADI 05-04-01 ADI 05-04-01 ADI 05-04-01 ADI 05-04-01 ADI 05-04-01 ADI 05-04-01 ADI 05-04-01 ADI 05-04-01 ADI 05-04-01 ADI 05-04-01 ADI 05-04-01 ADI 05-04-01 P /N 300116 P /N 300116 P /N 300116 P /N 300116 P /N 300116 Clippard
OK+ OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK N /A N /A
ASSOCIATION
REPORTS
Table 2 ■ (Continued)
Company Chayes-Virginia Chayes-Virginia Chayes-Virginia Chayes-Virginia Dansereau Dansereau Dansereau Dental Service Dental service Dental service Dentech Dentech Dentech Dentech Dentech Dentech Dentech Dentech Dentech Dentech Dentech Dentech Dentech Dentech Dentech Dentech Dentech Dentech Dentech Dentech Dentech Dentech Dentech Dentrex Dentrex Dentrex Dentrex Fluidic Medical Systems Forest Medical Mastercraft Dental MCC Midwest Dental Mobile Dental Parkell Products Parkell Products Parkell Products Parkell Products Peí ton 8c Crane Peí ton 8c Crane Peí ton 8c Crane Peí ton 8c Crane Peí ton 8c Crane Peí ton 8c Crane Peí ton 8c Crane Pelton 8c Crane Peí ton 8c Crane Pelton 8c Crane Pelton 8c Crane Pelton 8c Crane Pelton 8c Crane Pelton 8c Crane Pelton 8c Crane Pelton 8c Crane Pelton 8c Crane Pelton 8c Crane Pelton 8c Crane Proma
Model G inny auto Ginny II Perception System 7000 C linic II C linic III M obile carts RD-I RD-II R L /R D -I AW360 C700 C701 C706 C710 CM 100 CM 102 CM110 CM112 CM115 CM117 CM 150 CM 160 CM 165 CM200 CM210 CM215 CT500 CT502 CT503 CT505 WM300 WM305 Freedom series Trayaire series M ini units Independence series Discovery III All models All models All models 210 dental unit Decade 2042 Du-all Trac 3 model II Eti units Air drive all Executive Spirit Spirit control 100 Spirit control 101 Spirit control 102 Spirit control 103 Spirit cart model 3001 Spirit cart model 3002 Spirit cart model 3022 Spirit model 4000 Spirit model 4006 Spirit model 4016 Spirit side delivery Spirit rear delivery Spirit w all/custom 300 Spirit w all/custom 301 Spirit w all/custom 302 Spirit rear/custom 700 Spirit rear/custom 710 All models
Water retraction
Extent of water retraction
Specification requirement 3.5
Conversion
Check valve
Valve type
Warranty status
Yes No Yes Yes No
.2 5 -8 0 in N one .25-.80 in .25-.80 in N one
Meets Meets Meets Meets Meets
Poss Poss Poss Poss N /A
Poss Poss Poss Poss N /A
P T 1100-105 P T 1100-105 P T 1100-105 P T 1100-105 N /A
OK/CO§ O K /C O OK/CO O K /C O N /A
No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No Yes
N one N one N one N one None None None None None None None None None None None None None None None None None None N one N one N one N one N one N one N one None N one N one None N one N one N one N one N one N one N one None N one N one N one None N one None None None None None None None None None None None None None 0-1.5 in
Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets
N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A
No No No N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A
N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A
Meets
N /A N /A N /A N /A N /A N /A N /A N /A N /A No N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A Poss
N /A
N one N one N one N one N one N one N one N one N one N one N one N one N one N one N one N one N one N one N one N one N one N one N one N one N one N one N one N one N one N one N one N /A
N /A Poss N /A N /A N /A N /A No N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A No
N /A Detroit N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A
N /A OK/CO N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A Affects
Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets
N /A
JADA, Vol. 116, M arch 1988 ■ 419
ASSOCIATION
REPORTS
Table 2 ■ (Continued)
Company
Model
Scope, Inc Scope, Inc Scope, Inc Scope, Inc Scope, Inc Scope, Inc Scope, Inc Scope, Inc Scope, Inc Scope, Inc Scope, Inc Scope, Inc Scope, Inc Scope, Inc Scope, Inc Scope, Inc Scope, Inc Scope, Inc Scope, Inc Scope, Inc Scope, Inc Scope, Inc Scope, Inc Scope, Inc, Scope, Inc Spartan Spartan Spartan Spartan Spartan Spartan Syntex
B-4 B-4H B-l U-3 S-2M S-2M+ S-2 S-2+ S-3 S-3+ SA-2 SA-3 US-2 CC-1
T im e m otion sys
s-x P-C TT SX-P P-D P-H PDA P-AS ST-4 D-PO DU-33C DC-1 DC-1A OM-1 OM-1A OP-1 OP-1A Signature With valve 3587-070 With valve 2625-029 TMS “ total concept”
Water retraction
Extent of water retraction
Specification requirement 3.5
Conversion
Check valve
Valve type
Warranty status
Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes No No No No No No
0.25 in 0.25 in 0.25 in 0.25 in 0.25 in 0.25 in 0.25 in 0.25 in 0.25 in 0.25 in 0.25 in 0.25 in 0.25 in 0.25 in 0.25 in 0.25 in 0.25 in 0.25 in 0.25 in 0.25 in 0.25 in 0.25 in 0.25 in 0.25 in 0.25 in N one N one N one None N one N one
Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets
Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss N /A N /A N /A N /A N /A N /A
Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss N /A N /A N /A N /A N /A N /A
Clippard MCV1 Clippard MCV1 Clippard MCV1 Clippard MCV1 Clippard MCV1 Clippard MCV1 Clippard MCV1 Clippard MCV1 Clippard MCV1 Clippard MCV1 Clippard MCV1 Clippard MCV1 Clippard MCV1 Clippard MCV1 Clippard MCV1 Clippard MCV1 Clippard MCV1 Clippard MCV1 Clippard MCV1 Clippard MCV1 Clippard MCV1 Clippard MCV1 Clippard MCV1 Clippard MCV1 Clippard MCV1 N /A N /A N /A N /A N /A N /A
OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK N /A N /A N /A N /A N /A N /A
No Yes No
None 0-0.1 in N one
Meets Meets Meets
N /A Poss N /A
N /A Poss N /A
N /A No. 3587-070 N /A
N /A OK N /A
*Data in table 1 are based on information supplied by manufacturers. f N o t applicable. £Does not affect warranty. §Does not affect warranty when performed by the company.
c o n ta in e r for several m in u tes at the beginning of the practice day may signif icantly reduce overnight bacterial accumu lation. Manufacturers’ recommendations should be followed for use and m ain tenance of waterlines, check valves, and for the flushing of handpieces. T he current ANSI/ADA specification no. 47 for dental units requires that dental units shall incorporate means of preventing water from being drawn back beyond the c o n n e c tin g p o in t of the handpiece to the handpiece tu b in g at shutoff. T his requirement, together with handpieces that can be sterilized, provide significant infection control practice in preventing cross-contamination. A method to test for the presence of water drawn back beyond the connection point of the handpiece to the handpiece tubing is described in the specification. 420 ■ JA DA, Vol. 116, M arch 1988
“Connect a 6 inch (15.2 cm) length of 1/16 inch (0.159 cm) inside diameter trans parent tube to the fitting to which the water tube of the handpiece is normally attached. T he unconnected end of the 6 inch (15.2 cm) tube must be squared off. Operate the u n it’s water valve as it would normally be done during handpiece oper ation and in accordance with the manufac tu rer’s specifications. Operate until a continuous stream of water flows from the 6 inch (15.2 cm) long tube; then shut water valve off as it would normally be done when shutting the handpiece. The meniscus of the column of water in the tube shall not exceed 0.800 inches (2.032 cm) from the end of the tube when held vertically, with the open tube end ex tending upward.”4 T he dental industry is invited to sub m it dental units for evaluation by the
council. Copies of ANSI/ADA specifica tion no. 47 are available from the council office on request.
-------------------- J'AD)A -------------------Data in tables are based on information supplied by manufacturers. Individual units may vary, depending on conditions and installation. T h is report was approved by the council in May 1987. Address requests for reprints to the council. 1. Council on Dental Materials and Devices, and C ouncil on Dental Therapeutics. Infection control in the dental office. JADA 97(4):673-677, 1978. 2. Centers for Disease Control. Recommended infection-control practices for dentistry. MMWR 35(15): 237-242, 1986. 3. Centers for Disease Control. Recom mendations for prevention of HIV transmission in health-care settings. MMWR 36(Suppl N o 2S): 3S-18S, 1987. 4. American N ational Standard/American Dental Association. Specification no. 47 for dental units, 1983.
)A
ASSOCIATION
REPORTS
Dental units and water retraction Council on Dental Materials, Instruments, and Equipment
he concern that water retraction in dental units may compromise infection control practices has been expressed by the Council on Dental Materials, Instruments, and Equipment; the Council on Dental Therapeutics1; and the Centers for Disease Control.2'3 In an effort to assist the dental profes sion, the Council on Dental Materials, Instruments, and Equipm ent conducted a survey on dental units and water retrac tion. Inform ation on some older units
T
(Table 1) and currently available units (Table 2) is included. The tables summa rize the responses from the companies. The tables indicate the m anufacturing or supply company, the model of dental unit, and the presence or absence of water retraction, the extent of water retraction (if any), whether it meets the requirement 3.5 in ANSI/ADA specification no. 47 for dental units,4 possible conversion, check valve, valve type, and whether the war ranty status is affected by the conversion.
Requests for information on dental unit water retraction or conversion should be directed to the specific company. As the degree of risk of cross-contamina tion from units with water retraction is not known, it is prudent for handpieces and other items connected to the waterlines of dental units to run and discharge water into a sink or container for at least 2 m inutes after com pleting care on each patient. In addition, allow ing handpieces to run and discharge water into a sink or
Table 1 ■ Absence or presence of water retraction in previously available dental units.*
Company A-Dec Biotec Chayes-Virginia Den tech Dentrex Dentrex Dentrex Forest Medical Midwest Dental Parkell Products Parkell Products Parkell Products Parkell Products Pel ton 8c Crane Pel ton 8c Crane
Model All older units All units Before 1/1/72 All models All models Before 1/15/87 Freedom series Before 5 /1 /8 7 Trayaire series Before 5 /1 /8 7 M ini units Before 5 /1 /8 7 All models Before 9/86 210 dental unit Before 9 /0 3 /7 8 Du-all Before 3 /1 /8 7 Trac 3 model II Before 3 /1 /8 7 ETI units Before 3 /1 /8 7 Air drive all Before 3 /1 /8 7 Ranger Centric
Water retraction
Extent of water retraction
Specification requirement 3.5
Yes Yes
Conversion
Check valve
Poss No
Poss No
Yes Yes
0.65 in
Meets
Poss Poss
Poss
No
0-1.59 mm
Meets
Poss
Poss
No
0-1.59 mm
Meets
Poss
Poss
No
0-1.59 mm
Meets
Poss
Poss
Yes
Poss
Poss
Yes
Poss
Poss
Valve type
Warranty status
ADI 05-04-01
OK
Clippard MCV-1
N /A f
Yes
10 in
No
No
Poss
OK
Yes
10 in
No
No
Poss
OK
Yes
10 in
No
No
Poss
OK
Yes
10 in
No
No
Poss
OK
Yes Yes
*Data in Table 1 are based on information supplied by the manufacturers. fN o t applicable.
JADA, Vol. 116, M arch 1988 ■ 417
ASSOCIATION
REPORTS
Table 2 ■ Absence or presence of water retraction in currently available dental u n its/
Company
Model
Water retraction
A-Dec A-Dec A-Dec A-Dec A-Dec A-Dec A-Dec A-Dec A-Dec A-Dec A-Dec A-Dec A-Dec A-Dec A-Dec A-Dec A-Dec A-Dec A-Dec A-Dec A-Dec A-Dec A-Dec A-Dec A-Dec A-Dec A-Dec A-Dec A-Dec A-Dec A-Dec A-Dec A-Dec A-Dec A-Dec A-Dec A-Dec A-Dec A-Dec A-Dec Ampco Ampco Ampco Ampco Ampco Ampco Am pco Am pco Am pco Ampco Am pco Am pco Am pco Am pco Am pco Ampco Am pco Ampco Am pco Ampco Ampco Belm ont Belm ont Belmont Belmont Belmont Biotec
2030 2031 2040 2041 2042 2070 2071 2072 2080 2081 2082 2090 2091 2092 2502 2522 2541 2542 2543 2551 2902 3002 3022 3030 3042 3110 3406 3413 3414 3415 3416 3417 4100 4112 4200 4220 4225 4230 4233 4300 20-390 20-385 20-485 20-490 20-475 20-585 20-590 20-270 20-260 20-410 20-380 20-540 20-250 20-413 20-414 20-625 20-516 20-650 20-655 20-660 20-665 056/057 Power wall models 400 series Trans-it 901 Trans-it 902 A ll units
No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No O ptional Optional O ptional O ptional O ptional O ptional Optional O ptional Optional O ptional Optional Optional O ptional Optional Optional O ptional Optional O ptional Optional Optional Optional Yes Yes Yes Yes Yes Yes
418 ■ JADA, Vol. 116, M arch 1988
Extent of water retraction
Specification requirement 3.5
Conversion
Check valve
Valve type
Warranty status
None N one N one N one N one N one N one N one N one N one N one N one N one None N one N one None N one N one N one N one N one N one N one N one N one N one N one N one N one N one N one N one N one N one N one N one N one N one N one N one N one N one None None None N one N one N one None N one None None None N one None N one N one N one N one N one < 0.80 in <0.80 in <0.80 in <0.80 in <0.80 in
Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets
N /A f N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss No No No No No No
N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss
N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A ADI 05-04-01 ADI 05-04-01 ADI 05-04-01 ADI 05-04-01 ADI 05-04-01 ADI 05-04-01 ADI 05-04-01 ADI 05-04-01 ADI 05-04-01 ADI 05-04-01 ADI 05-04-01 ADI 05-04-01 ADI 05-04-01 ADI 05-04-01 ADI 05-04-01 ADI 05-04-01 ADI 05-04-01 ADI 05-04-01 ADI 05-04-01 ADI 05-04-01 ADI 05-04-01 P /N 300116 P /N 300116 P /N 300116 P /N 300116 P /N 300116 Clippard
OK+ OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK N /A N /A
ASSOCIATION
REPORTS
Table 2 ■ (Continued)
Company Chayes-Virginia Chayes-Virginia Chayes-Virginia Chayes-Virginia Dansereau Dansereau Dansereau Dental Service Dental service Dental service Dentech Dentech Dentech Dentech Dentech Dentech Dentech Dentech Dentech Dentech Dentech Dentech Dentech Dentech Dentech Dentech Dentech Dentech Dentech Dentech Dentech Dentech Dentech Dentrex Dentrex Dentrex Dentrex Fluidic Medical Systems Forest Medical Mastercraft Dental MCC Midwest Dental Mobile Dental Parkell Products Parkell Products Parkell Products Parkell Products Peí ton 8c Crane Peí ton 8c Crane Peí ton 8c Crane Peí ton 8c Crane Peí ton 8c Crane Peí ton 8c Crane Peí ton 8c Crane Pelton 8c Crane Peí ton 8c Crane Pelton 8c Crane Pelton 8c Crane Pelton 8c Crane Pelton 8c Crane Pelton 8c Crane Pelton 8c Crane Pelton 8c Crane Pelton 8c Crane Pelton 8c Crane Pelton 8c Crane Proma
Model G inny auto Ginny II Perception System 7000 C linic II C linic III M obile carts RD-I RD-II R L /R D -I AW360 C700 C701 C706 C710 CM 100 CM 102 CM110 CM112 CM115 CM117 CM 150 CM 160 CM 165 CM200 CM210 CM215 CT500 CT502 CT503 CT505 WM300 WM305 Freedom series Trayaire series M ini units Independence series Discovery III All models All models All models 210 dental unit Decade 2042 Du-all Trac 3 model II Eti units Air drive all Executive Spirit Spirit control 100 Spirit control 101 Spirit control 102 Spirit control 103 Spirit cart model 3001 Spirit cart model 3002 Spirit cart model 3022 Spirit model 4000 Spirit model 4006 Spirit model 4016 Spirit side delivery Spirit rear delivery Spirit w all/custom 300 Spirit w all/custom 301 Spirit w all/custom 302 Spirit rear/custom 700 Spirit rear/custom 710 All models
Water retraction
Extent of water retraction
Specification requirement 3.5
Conversion
Check valve
Valve type
Warranty status
Yes No Yes Yes No
.2 5 -8 0 in N one .25-.80 in .25-.80 in N one
Meets Meets Meets Meets Meets
Poss Poss Poss Poss N /A
Poss Poss Poss Poss N /A
P T 1100-105 P T 1100-105 P T 1100-105 P T 1100-105 N /A
OK/CO§ O K /C O OK/CO O K /C O N /A
No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No Yes
N one N one N one N one None None None None None None None None None None None None None None None None None None N one N one N one N one N one N one N one None N one N one None N one N one N one N one N one N one N one None N one N one N one None N one None None None None None None None None None None None None None 0-1.5 in
Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets
N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A
No No No N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A
N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A
Meets
N /A N /A N /A N /A N /A N /A N /A N /A N /A No N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A Poss
N /A
N one N one N one N one N one N one N one N one N one N one N one N one N one N one N one N one N one N one N one N one N one N one N one N one N one N one N one N one N one N one N one N /A
N /A Poss N /A N /A N /A N /A No N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A No
N /A Detroit N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A
N /A OK/CO N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A N /A Affects
Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets
N /A
JADA, Vol. 116, M arch 1988 ■ 419
ASSOCIATION
REPORTS
Table 2 ■ (Continued)
Company
Model
Scope, Inc Scope, Inc Scope, Inc Scope, Inc Scope, Inc Scope, Inc Scope, Inc Scope, Inc Scope, Inc Scope, Inc Scope, Inc Scope, Inc Scope, Inc Scope, Inc Scope, Inc Scope, Inc Scope, Inc Scope, Inc Scope, Inc Scope, Inc Scope, Inc Scope, Inc Scope, Inc Scope, Inc, Scope, Inc Spartan Spartan Spartan Spartan Spartan Spartan Syntex
B-4 B-4H B-l U-3 S-2M S-2M+ S-2 S-2+ S-3 S-3+ SA-2 SA-3 US-2 CC-1
T im e m otion sys
s-x P-C TT SX-P P-D P-H PDA P-AS ST-4 D-PO DU-33C DC-1 DC-1A OM-1 OM-1A OP-1 OP-1A Signature With valve 3587-070 With valve 2625-029 TMS “ total concept”
Water retraction
Extent of water retraction
Specification requirement 3.5
Conversion
Check valve
Valve type
Warranty status
Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes No No No No No No
0.25 in 0.25 in 0.25 in 0.25 in 0.25 in 0.25 in 0.25 in 0.25 in 0.25 in 0.25 in 0.25 in 0.25 in 0.25 in 0.25 in 0.25 in 0.25 in 0.25 in 0.25 in 0.25 in 0.25 in 0.25 in 0.25 in 0.25 in 0.25 in 0.25 in N one N one N one None N one N one
Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets Meets
Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss N /A N /A N /A N /A N /A N /A
Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss Poss N /A N /A N /A N /A N /A N /A
Clippard MCV1 Clippard MCV1 Clippard MCV1 Clippard MCV1 Clippard MCV1 Clippard MCV1 Clippard MCV1 Clippard MCV1 Clippard MCV1 Clippard MCV1 Clippard MCV1 Clippard MCV1 Clippard MCV1 Clippard MCV1 Clippard MCV1 Clippard MCV1 Clippard MCV1 Clippard MCV1 Clippard MCV1 Clippard MCV1 Clippard MCV1 Clippard MCV1 Clippard MCV1 Clippard MCV1 Clippard MCV1 N /A N /A N /A N /A N /A N /A
OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK N /A N /A N /A N /A N /A N /A
No Yes No
None 0-0.1 in N one
Meets Meets Meets
N /A Poss N /A
N /A Poss N /A
N /A No. 3587-070 N /A
N /A OK N /A
*Data in table 1 are based on information supplied by manufacturers. f N o t applicable. £Does not affect warranty. §Does not affect warranty when performed by the company.
c o n ta in e r for several m in u tes at the beginning of the practice day may signif icantly reduce overnight bacterial accumu lation. Manufacturers’ recommendations should be followed for use and m ain tenance of waterlines, check valves, and for the flushing of handpieces. T he current ANSI/ADA specification no. 47 for dental units requires that dental units shall incorporate means of preventing water from being drawn back beyond the c o n n e c tin g p o in t of the handpiece to the handpiece tu b in g at shutoff. T his requirement, together with handpieces that can be sterilized, provide significant infection control practice in preventing cross-contamination. A method to test for the presence of water drawn back beyond the connection point of the handpiece to the handpiece tubing is described in the specification. 420 ■ JA DA, Vol. 116, M arch 1988
“Connect a 6 inch (15.2 cm) length of 1/16 inch (0.159 cm) inside diameter trans parent tube to the fitting to which the water tube of the handpiece is normally attached. T he unconnected end of the 6 inch (15.2 cm) tube must be squared off. Operate the u n it’s water valve as it would normally be done during handpiece oper ation and in accordance with the manufac tu rer’s specifications. Operate until a continuous stream of water flows from the 6 inch (15.2 cm) long tube; then shut water valve off as it would normally be done when shutting the handpiece. The meniscus of the column of water in the tube shall not exceed 0.800 inches (2.032 cm) from the end of the tube when held vertically, with the open tube end ex tending upward.”4 T he dental industry is invited to sub m it dental units for evaluation by the
council. Copies of ANSI/ADA specifica tion no. 47 are available from the council office on request.
-------------------- J'AD)A -------------------Data in tables are based on information supplied by manufacturers. Individual units may vary, depending on conditions and installation. T h is report was approved by the council in May 1987. Address requests for reprints to the council. 1. Council on Dental Materials and Devices, and C ouncil on Dental Therapeutics. Infection control in the dental office. JADA 97(4):673-677, 1978. 2. Centers for Disease Control. Recommended infection-control practices for dentistry. MMWR 35(15): 237-242, 1986. 3. Centers for Disease Control. Recom mendations for prevention of HIV transmission in health-care settings. MMWR 36(Suppl N o 2S): 3S-18S, 1987. 4. American N ational Standard/American Dental Association. Specification no. 47 for dental units, 1983.