Efficacy of adjunctive anti-plaque chemical agents in managing gingivitis. A systematic review and meta-analysis. Tables for online supplement. Table S1. Study characteristics: affiliation, sample recruitment and study duration. Study Study filiation Country Setting Centre/s Population recruitment Allen et al. 1998 Allen et al. 2002 Ayad et al. 1995 Ayad et al. 2011 Bauroth et al. 2003 Beiswanger et al. 1995 Beiswanger et al. 1997 Bolden et al. 1992 Bruhn et al. 2002 Charles et al. 2001 Charles et al. 2004 Charles et al. 2013 Chaves et al. 1994 Claydon et al. 1996 Coelho et al. 2000 Cortelli et al. 2012 Cortelli et al. 2013 Cortelli et al. 2014 Costa et al. 2013 Cubells et al. 1991 Deasy et al. 1991 Denepitiya et al. 1992 DePaola et al. 1989 Flemmig et al. 1990 UK USA Canada Costa Rica USA USA USA USA Germany Canada USA USA USA UK USA Brazil Brazil Brazil Spain Spain USA USA USA USA Dominican Republic USA USA USA USA Sweden Germany India Norway unclear RC RC RC RC unclear unclear RC university RC RC RC university university RC dental clinic university university university unclear RC RC university university unclear unclear unclear 1 1 1 1 unclear 1 unclear unclear unclear unclear 1 unclear 1 1 1 1 unclear 1 unclear 1 1 general general general general not defined general general general medical patients general not defined not defined not defined university and hospital staff not defined dental clinic patients not defined not defined dental school patients not defined general general dental school patients dental school patients Follow-up Duration in months 6 6 6 6 6 6 6 6 7 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 unclear unclear dental clinic patients 7 university RC unclear university university university university university 1 unclear unclear 1 1 1 1 1 dental school students and staff general not defined dental school patients military regiment medical school students high school students dental school students 9 6 6 6 6 6 6 24 Garcia-Godoy et al. 1990 Sample Gordon et al. 1985 Grossman et al. 1989 Grossman et al. 2002 Harper et al. 1990 Hase et al. 1998 Hoffmann et al. 2001 Jayaprakash et al. 2007 Johansen et al. 1975 Kanchanakamol et al. 1995 Kocher et al. 2000 Kopczyk et al. 1991 Lang et al. 1982 Lang et al. 1998 Lindhe et al. 1993 Lucas & Lucas 1999 Mallatt et al. 2007 Mankodi et al. 1992 Mankodi et al. 2005b Mankodi et al. 2005a Mankodi et al. 2011 Mateu et al. 2008 Mauriello & Bader 1988 McClanahan et al. 1997 Thailand university 1 general 6 Germany USA Switzerland Switzerland unclear Argentina USA USA USA USA USA Spain USA USA university university university unclear unclear unclear RC RC RC RC RC RC university unclear 1 1 unclear unclear unclear unclear 1 1 1 1 1 unclear unclear 1 7 6 6 6 6 6 6 6 6 6 6 6 6 9 Mengel et al. 1996 Germany university 1 Overholser et al. 1990 Palomo et al. 1994 Paraskevas et al. 2004 Paraskevas et al. 2005 Perlich et al. 1995 Pradeep et al. 2012b Pradeep et al. 2012a Rathe et al. 2007 Renvert & Birkhed 1995 Sanz et al. 1994 USA Guatemala Netherlands Netherlands USA India India Germany Sweden Spain unclear unclear university university RC university university university university university unclear unclear 1 22 1 1 1 1 1 1 dental school patients dental school patients school students company employees not defined dental school students general general not defined not defined general general dental school patients general dental school patients, students and staff not defined general dental school patients dental clinic patients general dental school patients dental school patients dental school patients university students dental school patients 9 6 6 24 6 9 6 6 6 6 6 Schaeken et al. 1996 Schiff et al. 2006 Schiffner et al. 2007 Sgan-Cohen et al. 1996 Shapira et al. 1999 Sharma et al. 2002 Sharma et al. 2004 Sharma et al. 2010 Spets-Happonen et al. 1991 Spolsky & Forsythe 1977 Sreenivasan et al. 2011 Stephen et al. 1990 Stookey et al. 2005 Svatun et al. 1987 Svatun et al. 1990 Svatun et al. 1993b Svatun et al. 1993a Triratana et al. 1993 Triratana et al. 1995 Triratana et al. 2002 Van Leeuwen et al. 2014 Weatherford et al. 1977 Williams et al. 1998 Winston et al. 2002 Wolff et al. 1989 Worthington et al. 1993 Netherlands USA Germany Israel Israel USA USA Canada university university university university university RC RC university 1 1 1 1 1 1 1 1 students general senior subjects school students kibbutzs not defined not defined not defined 7 6 6 6 6 6 6 6 Finland university 1 school students 33 USA Israel UK USA Norway Norway Norway Norway Thailand Thailand Thailand Netherlands USA USA USA USA UK dental clinic university university university unclear unclear unclear unclear university university university unclear RC university university company university 1 1 1 1 1 unclear unclear unclear unclear 1 1 1 unclear 1 unclear 1 1 6 6 6 6 7 6 7 7 6 6 6 6 6 6 6 18 6 Yates et al. 1993 UK university 1 Zimmermann et al. 1993 Germany university 1 university employees kibbutzs not defined not defined nurses students not defined general general general general general non-dentistry students not defined general dental school patients company employees dental clinic patients university and hospital employees dental school patients and students RC, Research Company. 6 7 Table S2. Study characteristics: periodontal status as defined by the inclusion criteria. 1st author Allen et al. 1998 Allen et al. 2002 Ayad et al. 1995 Plaque PI≥1 Q-H ≥1.5 NR Gingivitis GI≥1.5 modLS≥1.0 NR Previous treatments NR NR NR MGI≥1.75 Periodontitis NR NR NR no advanced periodontitis NR Ayad et al. 2011 PI≥1 GI≥1.5 Bauroth et al. 2003 Beiswanger et al. 1995 Beiswanger et al. 1997 Bolden et al. 1992 PI≥1.95 NR NR NR NR NR ≥5 sites BOP NR NR PI≥1 GI≥1.5 NR NR NR NR NR In SPT, basic and advanced periodontal treatment at least 6 month before entering the trial Bruhn et al. 2002 Charles et al. 2001 PI≥1.75 MGI≥1.75 Charles et al. 2004 Charles et al. 2013 Chaves et al. 1994 Claydon et al. 1996 Coelho et al. 2000 Cortelli et al. 2012 Cortelli et al. 2013 Cortelli et al. 2014 Costa et al. 2013 Cubells et al. 1991 Deasy et al. 1991 Denepitiya et al. 1992 DePaola et al. 1989 Flemmig et al. 1990 Garcia-Godoy et al. 1990 PI≥1.95 PI≥1.95 NR NR PI≥1.95 PI≥1.95 PI≥1.95 PI≥1.95 NR Q-H ≥1.5 PI≥1 GI≥0.95 MGI≥1.75 30% BOP 25% BOP MGI≥1.75 MGI≥1.75 MGI≥1.75 MGI≥1.75 40% BOMP modLS≥1.0 GI≥1.5 no moderate or advanced periodontitis NR NR ≤4 sites PPD>6mm ≤4 sites PPD>4mm NR NR NR NR no sites PPD>4mm NR NR NR NR NR NR PI≥1.95 NR GI≥1.95 ≥6 sites BOP NR PPD≤4mm NR NR PI≥1.5 GI≥1.0 NR NR Gordon et al. 1985 PI≥1.8 GI≥2.0 1 ≥1 site BOP NR ≥5 site BOP Grossman et al. 1989 Grossman et al. 2002 Harper et al. 1990 Hase et al. 1998 Hoffmann et al. 2001 Jayaprakash et al. 2007 Johansen et al. 1975 Kanchanakamol et al. 1995 Kocher et al. 2000 Kopczyk et al. 1991 Lang et al. 1982 Lang et al. 1998 Lindhe et al. 1993 Lucas & Lucas 1999 Mallatt et al. 2007 Mankodi et al. 1992 Mankodi et al. 2005b Mankodi et al. 2005a Mankodi et al. 2011 Mateu et al. 2008 Mauriello & Bader existing plaque NR no destructive periodontal disease no overt periodontal disease no severe gingivitis or periodontitis NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR ≥20% BOP NR NR 25% BOP ≤4 sites PPD>4mm NR GI<1.5 no periodontitis NR NR NR no history of EOP or ANUG NR NR NR NR NR NR PI≥1.5 GI≥1.0 PI≥1.5 PI≥2 NR NR NR NR NR PI≥1 PBI≥2 50% BOP NR NR NR NR NR GI<1.5 no advanced periodontitis NR no periodontitis NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR PI≥1 NR NR GI>1.5 NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR 1988 McClanahan et al. 1997 NR NR NR NR NR chronic gingivitis or early signs of periodontitis PPD≤ 5mm; no II-III tooth mobility NR NR NR NR NR NR NR NR NR NR In SPT, <5 sites with PPD≥5mm NR SPT at regular intervals of 3–4 months for at least a period of 1 year NR NR NR NR NR NR NR GI≥1.0 NR no history of periodontal therapy PI≥2 NR NR GI≥1.0 NR gingivitis NR GI>0.7 NR PPD≤3mm, CAL=0, no Rx bone loss PPD≤3mm, CAL=0, no Rx bone loss NR ≤4 sites PPD≥5mm, no Rx bone loss no PPD>4mm NR mild chronic gingivitis no PPD>3mm NR PI≥1.5 GI≥1.0 no advanced periodontitis NR NR NR NR NR NR NR NR NR NR ≥8sites BOP NR Sharma et al. 2002 PI≥1.95 MGI≥1.75 Sharma et al. 2004 Sharma et al. 2010 Spets-Happonen et al. 1991 Spolsky & Forsythe 1977 PI≥1.95 PI≥1.95 MGI≥1.75 MGI≥1.75 NR no moderate or advanced periodontitis NR NR NR NR NR NR NR PMA=0.8 Sreenivasan et al. 2011 NR NR Stephen et al. 1990 NR mild gingivitis Stookey et al. 2005 PI≥3.0 GI≥0.5, ≥10sites BOP Svatun et al. 1987 NR Svatun et al. 1990 NR Svatun et al. 1993b NR Svatun et al. 1993a NR Mengel et al. 1996 Overholser et al. 1990 Palomo et al. 1994 Paraskevas et al. 2004 Paraskevas et al. 2005 Perlich et al. 1995 Pradeep et al. 2012b Pradeep et al. 2012a Rathe et al. 2007 Renvert & Birkhed 1995 Sanz et al. 1994 Schaeken et al. 1996 Schiff et al. 2006 Schiffner et al. 2007 Sgan-Cohen et al. 1996 Shapira et al. 1999 Triratana et al. 1993 Triratana et al. 1995 Triratana et al. 2002 Van Leeuwen et al. 2014 Weatherford et al. 1977 PI≥1.5 mild to moderate gingivitis NR mild to moderate gingivitis mild to moderate gingivitis GI≥1.0 PI≥1.5 GI≥1.0 NR GI≥1.0 NR NR NR NR no advanced periodontitis no generalized moderate to severe chronic periodontitis no PPD >3.5mm no obvious periodontal disease NR not provided NR NR NR NR NR NR NR NR NR no PPD >3.5mm NR NR NR no PPD >4mm NR no PPD >4mm NR NR NR no advanced periodontitis no advanced periodontitis no PPD 4-5mm & Recession or PPD≥6mm NR Williams et al. 1998 modPI≥1.5 modGI≥1.0 Winston et al. 2002 Wolff et al. 1989 Worthington et al. 1993 NR NR NR NR no advanced periodontitis NR NR PI≥1.5 GI≥1.0 NR NR NR NR NR NR NR NR NR Yates et al. 1993 Zimmermann et al. 1993 NR GI≥0.5 (six teeth) NR NR NR chronic gingivitis PPD<5mm NR NR, not reported; PI, plaque index; Q-H, Quigley-Hein plaque index; LS, Löe-Silness; GI, gingival index; MGI, modified gingival index; mod, modified; PMA, papillary marginal attached gingival index ; BOP, bleeding on probing; BOMP, bleeding on marginal probing; mod, modified; PPD, probing pocket depth; CAL, clinical attachment level; SPT, supportive periodontal therapy; EOP, early onset periodontitis; ANUG, acute necrotising ulcerative gingivitis; Rx, radiographic Table S3. Interventions (dentifrices): description of the products tested, including main active ingredients and brand name, together with the provided instructions. reference 1st author year aloe Pradeep 2012 a AmF/SnF Sgan-Cohen 1996 control main brand or ingredients company LB Aroma and no antiHealth Care, inflammatory Mumbai, properties India NaF toothpaste NA AmF/SnF Shapira 1999 NaF toothpaste baking soda Beiswanger 1997 CHX Rathe 2007 group AmF & SnF NA AmF & SnF Meridol NaF toothpaste regular Crest ® baking soda, hydrogen peroxide, 0.243% NaF Mentadent Baking soda and Peroxide brush normally at least 2/d 144 ppm F toothpaste NA 0.05% CHX, 0.8% aluminium lactate, 1400 F Lacalut brush 2/d NA conventional abrasive, 0.4% CHX NA brush 2/d with 1g toothpaste NA non-abrasive paste, 0.4% CHX NA brush 2/d with 1g toothpaste NA conventional abrasive paste, 1.0% CHX NA brush 2/d with 1g toothpaste 1994 gum care toothpaste/plac ebo rinse Blen-amed/NA rinse 0.4% CHX, 0.34% zinc lactate, 1450 ppm NaF/placebo mouthrinse NA brush & rinse 2/d SmithKline Beecham 1% CHX SmithKline Beecham Johansen 1975 CHX Johansen 1975 CHX Johansen 1975 Sanz instructions brand or company Aloe Plus LB Aroma and Health Care Meridol CHX CHX test conventional abrasive toothpaste (no CHX) non-abrasive toothpaste (no CHX) conventional abrasive toothpaste (no CHX) main ingredients aloe vera CHX Yates 1993 toothpaste (no CHX-NaF) CHX Yates 1993 toothpaste (no CHX-NaF) SmithKline Beecham 1% CHX, 1000 ppm NaF SmithKline Beecham CHX Pradeep 2012 b placebo gel NA 1% CHX NA EEOO Coelho 2000 vehicle control toothpaste NA essential oils Pfizer NA 0.22% NaF, glycerine base NaF Wolff 1989 F-free glycerine gel pyro Winston 2002 NaF toothpaste Crest Regular sanguinari ne Mauriello 1988 toothpaste (no sanguinarina extract) NA SnF Beiswanger 1995 NaF toothpaste NA SnF Beiswanger 1995 NaF toothpaste NA SnF Beiswanger 1997 NaF toothpaste regular Crest Crest Ultra (without tric) 750 mcg/g sanguinarine extract 0.454% SnF, 1.5% SnCl, 2.08% sodium gluconate 0.454% SnF, 1.5% SnCl, 4.16% sodium gluconate 0.454% SnF NR NR brush 2/d with 1cm toothpaste, rinse 30s with slurry brush 2/d, 1min, with length-head toothpaste brush 2/d, 1min, with length-head toothpaste use pea size amount for 5min brush 2/d, 1min NA 2/d, after toothbrushing, brush again for 1min not commercial ad libitum NA brush at least 2/d NA ad libitum NA ad libitum Crest Plus Gum Care brush normally at least 2/d SnF McClanaha n 1997 NaF toothpaste Colgate Gum Protection 0.454% SnF, silica Crest Plus Gum Care SnF Perlich 1995 NaF toothpaste NA 0.454% SnF NA SnF Wolff 1989 F-free glycerine gel NA 0.4% SnF, glycerine NA 0.454% SnF, SHMP Crest ProHealth brush 2/d, 1min 0.454% SnF, SHMP NA brush 2/d, 1min 0.3% tric, 2% copolymer, 0.243% NaF, silica 0.3% tric, 2% copolymer, 0.243% NaF, silica Colgate Total Fresh Stripe brush 2/d, 1min Colgate Total brush 2/d, 1min Colgate Total/contr ol rinse 2/d, brush 1min, rinse 30sec Colgate Total brush 2/d, 1min Colgate Total brush 2/d, 1min Colgate Total brush 2/d, 1min Colgate Total brush 2/d, 1min Colgate Total brush 2/d, 1min Colgate Total NR Colgate Total brush 2/d, 1min, with length-head toothpaste Colgate Total brush 2/d, 1min Colgate Total brush 2/d, 1min Colgate Total Advanced brush 2/d, 1min Colgate Total brush at least 2/d, 1min Colgate Gum Protection brush 2/d, 1min NR Aquafresh Triple Protection (GSK) Colgate Cavity Protections SnF/SHMP Mallat 2007 NaMFP toothpaste SnF/SHMP Mankodi 2005 a MFP toothpaste tric/cop Allen 2002 NaF toothpaste NA tric/cop Bolden 1992 NaF toothpaste NA tric/cop Charles 2001 MFP toothpaste/cont rol rinse Colgate MFP/control rinse tric/cop Cubells 1991 NaF toothpaste NA tric/cop Deasy 1991 NaF toothpaste NA tric/cop Denepitiya 1992 NaF toothpaste NA tric/cop GarcíaGodoy 1990 NaF toothpaste NA tric/cop Kanchanak amol 1995 customary dentifrice NA tric/cop Kocher 2000 NaF toothpaste NA tric&copolymer/co ntrol rinse 0.3% tric, 2% copolymer, 0.243% NaF, silica 0.3% tric, 2% copolymer, 0.243% NaF, silica 0.3% tric, 2% copolymer, 0.243% NaF, silica 0.3% tric, 2% copolymer, 0.243% NaF, silica 0.3% tric, 2% copolymer, 0.243% NaF, silica 0.3% tric, 2% copolymer, 0.243% NaF, silica 0.3% tric, 2% copolymer, 0.243% NaF, silica tric/cop Lindhe 1993 NaF toothpaste NA tric/cop Mankodi 1992 NaF toothpaste NA tric/cop Mankodi 2011 NaF toothpaste NA tric/cop Mateu 2008 NaF toothpaste Crest Cavity Protection tric/cop McClanaha n 1997 NaF toothpaste Colgate Gum Protection Formula tric/cop Palomo 1994 NaF toothpaste NA Pradeep 2012 a no antiinflammatory properties LB Aroma and Health Care, Mumbai, India tric, polymer, fluoride LB Aroma and Health Care Colgate paradent Colgate Total tric/cop 0.3% tric, 2% copolymer, 0.243% NaF, silica 0.3% tric, 2% copolymer, 0.243% NaF, special silica 0.3% tric, 2% copolymer, 0.243% NaF, 17% silica 0.3% tric, 2% copolymer, 0.243% NaF, silica 0.3% tric, 2% copolymer, 0.243% NaF, silica tric/cop Renvert 1995 MFP toothpaste Dentosal AB 0.3% tric, 2% copolymer, SLS tric/cop Schiff 2006 NaF toothpaste & flossing Crest ® 0.3% tric, 2% copolymer, 0.243% brush at least 2/d, 1min brush at least 2/d, 1min 2/d, after toothbrushing, brush again for 1 min brush 2/d with 1.5 cm of toothpaste for each jaw brush 2/d, 1min, with NaF, silica tric/cop Sreenivasa n 2011 F- toothpaste NA tric/cop Svatum 1993 a Mentadent (no tric, ZnCit) NA tric/cop Triratana 1993 NaF toothpaste NA tric/cop Winston 2002 NaF toothpaste Crest Regular 0.3% tric, 2% copolymer, 0.243% NaF, silica 0.3% tric, 2% copolymer, 0.243% NaF, silica 0.3% tric, 2% copolymer, 0.243% NaF, silica 0.3% tric, 2% copolymer, 0.243% NaF, silica 0.3% tric, 2% copolymer, 0.243% NaF, silica & flossing lenght-head toothpaste NA brush 2/d Colgate Gum Protection brush 2/d Colgate Total brush 2/d, 1min Colgate Total ad libitum Colgate total brush 2/d, 1min, with length-head toothpaste tric/cop & floss Schiff 2006 NaF toothpaste Crest tric/cop Allen 2002 NaF toothpaste NA tric/cop Triratana 2002 NaF liquid toothpaste NA tric/EEOO Bruhn 2002 MFP toothpaste Rot-Weiss (Dental Kosmetik) 0.3% tric, 1450 ppm NaF, Essencial Oils tric/pyro Grossman 2002 NaF toothpaste Crest Regular 0.28% tric, 5.0% pyro, 0.243% NaF NA brush 2/d, 1min NA 0.3% tric, 5.0% pyro, 0.32% NaF, alumina Neo Mentadent -P (Elida Gibbs) brush 2/d, 1min 0.3% tric, 5.0% pyro, SLS Dentosal Friskt brush 2/d with 1.5 cm of toothpaste for each jaw Crest Ultra Protection brush 2/d Crest Ultra ad libitum Crest Gum Health Formula (P&G) brush 2/d, 1min Pepsodent brush 2/d wiht 1.5 cm of toothpaste for each jaw NA NR NA NR UK Mentadent brush 2/d UK Mentadent brush 2/d Sturge & Ciba NR NA NR tric/pyro Palomo 1994 NaF toothpaste tric/pyro Renvert 1995 MFP toothpaste Dentosal AB tric/pyro Svatum 1993 a Mentadent (no tric, ZnCit) NA tric/pyro Winston 2002 NaF toothpaste Crest Regular tric/ZnCit Palomo 1994 NaF toothpaste MFP toothpaste 0.3% tric, 5.0% pyro, 0.32% NaF, silica 0.28% tric, 5.0%pyro, 0.243%NaF NA 0.3% tric, 0.5% ZnCit, 0.85% NaMFP, alumina Dentosal AB 0.2% tric, 0.2% ZnCit, 0.5% SLS tric/ZnCit Renvert 1995 tric/ZnCit Stephen 1990 tric/ZnCit Svatum 1987 tric/ZnCit Svatum 1993 b toothpaste (no tric, ZnCit) NA tric/ZnCit Svatum 1993 a Mentadent (no tric, ZnCit) NA tric/ZnCit Svatun 1990 toothpaste (no tric, ZnCit) NA ZnCit Williams 1998 MFP toothpaste NA toothpaste (no tric, ZnCit) toothpaste (no tric, ZnCit) 0.3% tric, 2% copolymer, 0.243% NaF, special silica 0.3% tric, 2% copolymer, 0.243% NaF, silica NA NA 0.2% tric, 0.5% ZnCit 0.2% tric, 1% ZnCit, MFP, alumina 0.3% tric, 0.75% ZnCit, 0.8% MFP, silica 0.3% tric, 0.75% ZnCit, 0.8% MFP, silica 0.2% tric, 0.5% ZnCit, MFP detergent, alumina 2%ZnCit, 0.76%MFP NA, not available. For other acronyms, see Table 2d. Colgate Total Plus Whitening Colgate Total Liquid Toothpaste Verum (Dental Kosmetik) brush 2/d, 1min brush 2/d, 1min brush normally Table S4. Interventions (mouthrinses): description of the products tested, including main active ingredients and brand name, together with the provided instructions. reference test group control test 1st author year main ingredients main ingredients alexidine alexidine Spolsky Weatherford 1977 1977 no alexidine placebo 0.035%alexidine 0.035%alexidine brand or company NA NA AmF/SnF Hoffmann 2001 water AmF & SnF Meridol AmF/SnF AmF/SnF AmF/SnF LC-CHX Schiffner Schiffner Zimmerman Jayaprakash SpetsHapponen 2007 2007 1993 2007 no intervention OHI only flavour, GABA placebo AmF & SnF AmF & SnF AmF & SnF 0.05%CHX Meridol Meridol Meridol NA 1991 no intervention 0.05%CHX NA Jayaprakash 2007 placebo 1991 no intervention 1991 no intervention LC-CHX LC-CHX LC-CHX LC-CHX SpetsHapponen SpetsHapponen 0.05%CHX, 0.05%NaF 0.05%CHX, 0.04%NaF 0.05% CHX, 0.04%NaF, strontium NA NA NA LC-CHX Hoffmann 2001 water 0.06%CHX Corsodyl LC-CHX Hoffmann 2001 water 0.06%CHX, NaF Odol med3 Depot HC-CHX Hoffmann 2001 water 0.1%CHX Chlorhexamed HC-CHX Lang 1982 placebo 0.1%CHX NA HC-CHX Charles 2004 5% hydro-alcohol 0.12%CHX Peridex HC-CHX Chaves 1994 no rinsing 0.12%CHX Peridex HC-CHX Flemmig 1990 no rinsing 0.12%CHX Peridex HC-CHX Grossman 1989 placebo 0.12%CHX HC-CHX Lucas 1999 placebo 0.12%CHX Peridex Microsules Bernabo LaboratoriesBuenos Aires HC-CHX Overholser 1990 5% hydro-alcohol 0.12%CHX HC-CHX Sanz 1994 HC-CHX Stookey 2005 alantoin, urea, NaMFP dentifrice; 0.12%CHX rinse 0.12%CHX HC-CHX Hase 1998 alantoin, urea, NaMFP dentifrice; placebo rinse placebo minus active placebo HC-CHX Lang 1982 HC-CHX Lang HC-CHX dosage, instructions 2/d, 15mL, 60s 2/d, 15mL, 60s control: 2/d, 100mL, 30s; test: 1/d, 10mL, 30s test, 1/d, 30s test, 1/d, 30s 1/d, 10mL, 30s 1/d, 10mL test, 2/d, 5mL, 5d every third week 1/d, 10mL test: 2/d, 5mL, 5d every third week test: 2/d, 5mL, 5d every third week 2/d, 10mL, 30s; control, 100mL 2/d, 10mL, 30s; control, 100mL 2/d, 15mL, 30s; control, 100mL 1/d, 15mL, 30s, 6/week 2/d, 15mL, 30s; control, 20mL control, brushing; test, 2/d control: no rinse; test: 2/d, 15mL, 30s 15mL, 30sec 2/d, 10mL Peridex 2/d, 15mL, 30s; control, 20mL Blend-a-med / Peridex 2/d brush & rinse NA 2/d, 15mL, 30s 0.2%CHX Hibitane Dental 2/d, 10mL, 60s placebo 0.2%CHX NA 1/d, 15mL, 30s, 6/week 1998 minus active placebo 0.2%CHX Hibitane Dental 2/d, 10mL, 60s Lang 1982 placebo 0.2%CHX NA control: 1/d, 15mL, 30s, 6/week; test: 2/week LC-CPC Allen 1998 no CPC rinse 0.05%CPC LC-CPC Cortelli 2012 5% hydro-alcohol 0.05%CPC LC-CPC Sharma 2010 hydro-alcohol LC-CPC Cortelli 2013 5% hydro-alcohol HC-CPC Cortelli 2014 HC-CPC Costa 2013 HC-CPC Mankodi 2005b 5% hydro-alcohol coloured salinebased placebo, no alcohol 0.05%CPC 0.05%CPC, no alcohol 0.07%CPC 0.07%CPC, no alcohol 0.07%CPC, no Colgate noncommercial Colgate Plax Overnight Colgate Plax Colgate Plax Pro-Saude Oral B Vitis Xtra Forte, Dentaid Crest Pro-Health 2/d, 15mL, 30s 2/d, 20mL, 30s 2/d, 20mL, 60s 2/d, 20mL, 60s; control: 30s 2/d, 20mL, 30s 3/d, 15mL, 30s 2/d, 20mL, 30s alcohol HC-CPC van Leeuwen 2014 minus active placebo HC-CPC Ayad 2011 0.05% NaF no alcohol, Colgate 0.075%CPC, 0.05%NaF, no alcohol Colgate 2/d, 20mL, 30s HC-CPC Stookey 2005 placebo 0.075%CPC NA 2/d, 15mL, 30s HC-CPC Stookey 2005 0.10%CPC NA 2/d, 15mL, 30s delmopinol Claydon 1996 0.1% delmopinol NA 60s delmopinol Claydon 1996 0.2% delmopinol NA 60s delmopinol Hase 1998 placebo minus active placebo minus active placebo minus active placebo 0.2% delmopinol, sodium hydroxide Decapinol 2/d, 10mL, 60s delmopinol Lang 1998 minus active placebo 0.2% delmopinol, sodium hydroxide EEOO Bauroth 2003 5% hydro-alcohol EEOO EEOO Beiswanger 1997 NaF dentifrice, Regular Crest NaF dentifrice / EEOO rinse EEOO Charles 2001 EEOO EEOO EEOO Charles Charles Cortelli 2004 2013 2012 Colgate MFP dentifrice / 5% hydro-alcohol rinse 5% hydro-alcohol 5% hydro-alcohol 5% hydro-alcohol Colgate MFP dentifrice / EEOO rinse EEOO EEOO EEOO, ZnCl, NaF EEOO Cortelli 2014 5% hydro-alcohol EEOO EEOO DePaola 1989 EEOO EEOO Gordon 1985 EEOO Listerine EEOO Grossman 1989 EEOO Listerine EEOO EEOO Overholser Sharma 1990 2002 EEOO EEOO Listerine Listerine 20mL, 30s; control: 15mL 2/d, 20mL, 30s 2/d, 20mL, 30s EEOO Sharma 2004 EEOO, brush, floss Listerine 2/d, 20mL, 30s EEOO EEOO/noALc Sharma Cortelli 2010 2013 EEOO EEOO, no alcohol Listerine Listerine Zero sanguinarine Grossman 1989 5% hydro-alcohol minus active placebo minus active placebo 5% hydro-alcohol 5% hydro-alcohol 5% hydro-alcohol, brush, floss hydro-alcohol 5% hydro-alcohol minus active placebo Decapinol, Biosurface Pharma Cool Mint Listerine regular Crest / Cool Mint Listerine Colgate MFP dentifrice / Listerine Listerine NA Listerine Total Cool Mint Listerine Listerine sanguinarine Viadent 2/d, 20mL, 30s 2/d, 20mL, 30s 15mL, 15s, 2 consecutive rinses tric/cop Ayad 1995 0.025% NaF tric/cop Triratana 1995 flavored/colored water placebo tric/cop Worthington 1993 0.025% NaF tric/ZnS Schaeken 1996 fluoride rinse, Signal tric/ZnS Schaeken 1996 fluoride rinse, Signal 0.07%CPC Vitis Xtra Forte, Dentaid 3/d, 15mL, 30s 0.03% tric, 0.125% copolymer, 0.025% NaF 0.03% tric, 0.123% copolymer 0.03% tric, 0.125% copolymer, 0.025% NaF 0.15% tric, 0.4% zinc sulphate, ethanol 15, humectant 40 0.15% tric, 0.4% zinc sulphate, ethanol 7.5, humectant 20 NA, not available. For other acronyms, see Table 2d. 2/d, 10mL, 60s 2/d, 20mL, 30s control: brushing; test; 2/d, 20mL, 30s 2/d, 20mL, 30s 2/d, 20mL, 30s 2/d, 20mL, 30s 2/d, 20mL, 30s 2/d, 20mL, 30s 2/d, 20mL, 30s 2/d, 20mL, 30s Irgacare MP, Ciba-Geigy Corp pre-brush 2/d, 15 mL, 60s Colgate Plax 2/d, 10mL, 60s Colgate Plax 2/d, 15mL, 60s NA 2/d, 10mL NA 2/d, 10mL Table S5. Interventions (dentifrice and mouthrinse): description of the products tested, including main active ingredients and brand name, together with the provided instructions. references group control 1st author year main ingredients AmF/SnF Mengel 1996 AmF/SnF Paraskevas 2004 AmF/SnF Paraskevas 2005 AmF/SnF Mengel 1996 sanguinarine Harper 1990 minus active placebos NaF toothpaste / NaF mouthrinse F toothpaste / F mouthrinse NaF toothpaste (Everclean Fluor, Hema) F toothpaste / F mouthrinse sanguinarine Kopczyk 1991 minus active placebos sanguinarine Kopczyk 1991 minus active placebos test instructions main ingredients brand or company AmF & SnF dentifrice and rinse NA 2/d brush & rinse (10mL, 30s) AmF & SnF dentifrice and rinse Meridol NR AmF & SnF dentifrice and rinse Meridol AmF & SnF dentifrice and rinse NA sanguinarine, 2.0% zinc chloride dentifrice / sanguinarine rinse Viadent 0.075% sanguinarine, 0.05% ZnCl, 0.8% MFP, silica dentifrice / 0.03% sanguinarine, 0.2% ZnCl rinse 0.075% sanguinarine, 0.05% ZnCl, 0.8% MFP, silica dentifrice / 0.03% sanguinarine, 0.2% ZnCl rinse NR, not reported. For other acronyms, see Table 2. 2/d brush (2min); test also: 1/d rinse (10mL, 30s) 2/d brush & 1/d rinse (10mL, 30s) 2/d brush (usual) & 2/d rinse (15mL, 60s) NA 2/d brush (1min) & 2/d rinse (15mL, 60s) NA 2/d brush (1min) & 2/d rinse (15mL, 60s) Table S6. Evaluation of the risk of bias in individual studies, as suggested by the Cochrane reviewers’ handbook: other potential sources of bias. reference other potential sources of bias 1st author funding authors independency other factors Allen et al. 1998 Allen et al. 2002 Ayad et al. 1995 Ayad et al. 2011 Bauroth et al. 2003 Beiswanger et al. 1995 Beiswanger et al. 1997 Bolden et al. 1992 Bruhn et al. 2002 Charles et al. 2001 Charles et al. 2004 Charles et al. 2013 Chaves et al. 1994 Claydon et al. 1996 Coelho et al. 2000 Cortelli et al. 2012 Cortelli et al. 2013 Cortelli et al. 2014 Costa et al. 2013 Cubells et al. 1991 Deasy et al. 1991 Denepitiya et al. 1992 DePaola et al. 1989 Flemmig et al. 1990 Garcia-Godoy et al. 1990 Gordon et al. 1985 Grossman et al. 1989 Grossman et al. 2002 Harper et al. 1990 Hase et al. 1998 Hoffmann et al. 2001 Jayaprakash et al. 2007 Johansen et al. 1975 Kanchanakamol et al. 1995 Kocher et al. 2000 Kopczyk et al. 1991 Lang et al. 1982 Lang et al. 1998 Lindhe et al. 1993 Lucas & Lucas 1999 Mallatt et al. 2007 Mankodi et al. 1992 Mankodi et al. 2005b Mankodi et al. 2005a Mankodi et al. 2011 Mateu et al. 2008 Mauriello & Bader 1988 McClanahan et al. 1997 Mengel et al. 1996 Overholser et al. 1990 Palomo et al. 1994 Paraskevas et al. 2004 Paraskevas et al. 2005 Perlich et al. 1995 Pradeep et al. 2012b Pradeep et al. 2012a Rathe et al. 2007 Renvert & Birkhed 1995 Sanz et al. 1994 Schaeken et al. 1996 industry? industry? industry? industry industry? industry? industry industry industry industry industry industry? industry industry? industry industry industry? industry industry industry? industry? industry? not described industry industry? industry industry industry? industry industry? not described not described not described industry industry industry industry industry? industry? self funding industry industry industry? industry industry industry not described industry? industry industry industry? industry industry industry not described industry industry not described industry? industry? IR, FC PRC, IR, FC PRC PRC, IR, FC PRC, FC IR, FC FC PRC, IR, FC IR PRC, FC PRC, FC PRC, FC IR IR, FC PRC, FC IR, FC IR, FC IR, FC IR IR, FC PRC, IR, FC PRC, IR, FC IR IR IR, FC IR PRC, IR, FC PRC, FC IR IR, FC IR IR IR IR IR, FC IR IR, FC IR, FC IR, FC IR PRC, IR, FC PRC, FC PRC, FC PRC, FC PRC, FC PRC, FC IR IR, FC IR IR IR, FC IR IR PRC, FC IR IR IR IR IR, FC IR, FC ✗ ✗ ✗ ✗ ✗ ✗ ✗ ✗ ✗ ✗ ✗ ✗ ✗ ✗ ✗ ✗ ✗ ✗ ✗ ✗ ✗ ✗ ? ✗ ✗ ✗ ✗ ✗ ✗ ✗ ? ? ? ✗ ✗ ✗ ✗ ✗ ✗ ✔ ✗ ✗ ✗ ✗ ✗ ✗ ? ✗ ✗ ✗ ✗ ✗ ✗ ✗ ? ✗ ✗ ? ✗ ✗ No randomisation, dropouts not explained Dropouts not explained Nothing to add Exclusion of non-compliant subjects Exclusion of non-compliant subjects Not in meta-analyses (lacking SD at 6m) No mouthrinse in the control group Dropouts not explained Not in meta-analyses (lacking SD) Nothing to add Brushing and rinsing at different times Not in meta-analyses (lacking SD at baseline) Difficulties for data extraction, also irrigation Hawthorne effect in the control group Nothing to add Nothing to add Different volumes of rinse in test groups Unclear definition of indices Unbalanced groups at baseline for plaque Poor mechanical hygiene No randomisation, unclear blinding Nothing to add Not in meta-analyses (lacking baseline data) Not in meta-analyses (lacking SD at 6m) Nothing to add Multiple prophylaxis, low plaque levels Not in meta-analyses (lacking SD) Not in meta-analyses (lacking SD) Nothing to add Adverse effects in test groups Staining in test group, different volumes Not in meta-analyses (lacking SD) Not in meta-analyses (lacking SD) No randomisation, unclear blinding Not in meta-analyses (lacking SD) Side effects, unclear blinding Not in meta-analyses (lacking SD at 6m) Not in meta-analyses (lacking mean & SD) Not in meta-analyses (lacking SD) Not in meta-analyses (lacking SD) Nothing to add No randomisation Nothing to add Nothing to add Nothing to add Dropouts not explained Payment for participants Already published data of two groups Not in meta-analyses (lacking sample size) Supervised use Not in meta-analyses (lacking SD) Patients with very good hygiene No mouthrinse in the control group Not in meta-analyses (duplicate data) Problems with staining No description of products and dosages Possible interactions among ingredients Lack of blinding due to strong taste of placebo Not in meta-analyses (lacking SD) Clear increase in calculus Schiff et al. 2006 Schiffner et al. 2007 Sgan-Cohen et al. 1996 Shapira et al. 1999 Sharma et al. 2002 Sharma et al. 2004 Sharma et al. 2010 Spets-Happonen et al. 1991 Spolsky & Forsythe 1977 Sreenivasan et al. 2011 Stephen et al. 1990 Stookey et al. 2005 Svatun et al. 1987 Svatun et al. 1990 Svatun et al. 1993b Svatun et al. 1993a Triratana et al. 1993 Triratana et al. 1995 Triratana et al. 2002 Van Leeuwen et al. 2014 Weatherford et al. 1977 Williams et al. 1998 Winston et al. 2002 Wolff et al. 1989 Worthington et al. 1993 Yates et al. 1993 Zimmermann et al. 1993 industry self funding industry industry industry? industry industry public,industry public industry industry? industry? industry? industry? industry? industry? industry? industry? industry industry not described industry? industry public industry industry industry IR, FC IR IR IR PRC, FC PRC, FC PRC, FC IR IR IR, FC IR, FC IR, FC IR, FC IR, FC IR, FC IR, FC IR, FC IR, FC IR, FC IR IR PRC, IR, FC IR, FC IR IR, FC IR IR ✗ ✔ ✗ ✗ ✗ ✗ ✗ ✗ ✔ ✗ ✗ ✗ ✗ ✗ ✗ ✗ ✗ ✗ ✗ ✗ ? ✗ ✗ ✔ ✗ ✗ ✗ Problems of blinding Hawthorne effect Hawthorne effect Hawthorne effect Use of floss, no bleeding index data Problems of blinding Not in meta-analyses (lacking SD) Not in meta-analyses (lacking sample size, SD) Problems with staining Unclear randomisation Nothing to add Lack of blinding due to tongue lesions No numerical data provided in the paper Unclear definition of indices Nothing to add Nothing to add No prophylaxis Hawthorne effect Nothing to add Low compliance with 3/d usage Many dropouts, only Ramfjord teeth assessed Unclear randomisation Not in meta-analyses (lacking SD at 6m) Not in meta-analyses (lacking SD) Difficulties for data extraction Dropouts and complains for staining Nothing to add Funding: industry (supported by a company with commercial interest in the tested products); industry? (not clearly stated, but employees of a company are listed among the authors); public (public funding); both (public and industry funding); self (self funding by the research group); not described (no information provided). Authors: PRC, Private Research Company researcher; IR, Independent Researcher (university faculty); FC, Funding Company researcher. SD, standard deviation. ✔, LOW risk of bias. ✗, HIGH risk of bias. ?, unclear risk of bias. Table S7. Qualitative and reporting aspects of the included studies with regards to registration, statistics and outcome assessment. Registration Reference Ethic committee Informed consent CONSORT reported RCT registration Score Allen et al. 1998 Allen et al. 2002 Ayad et al. 1995 Ayad et al. 2011 Bauroth et al. 2003 Beiswanger et al. 1995 Beiswanger et al. 1997 Bolden et al. 1992 Bruhn et al. 2002 Charles et al. 2001 Charles et al. 2004 Charles et al. 2013 Chaves et al. 1994 Claydon et al. 1996 Coelho et al. 2000 Cortelli et al. 2012 Cortelli et al. 2013 Cortelli et al. 2014 Costa et al. 2013 Cubells et al. 1991 Deasy et al. 1991 Denepitiya et al. 1992 DePaola et al. 1989 Flemmig et al. 1990 Garcia-Godoy et al. 1990 Gordon et al. 1985 Grossman et al. 1989 Grossman et al. 2002 Harper et al. 1990 Hase et al. 1998 Hoffmann et al. 2001 Jayaprakash et al. 2007 Johansen et al. 1975 Kanchanakamol et al. 1995 Kocher et al. 2000 Kopczyk et al. 1991 0 0 0 0 1 0 0 0 1 0 1 1 0 0 0 1 1 1 1 0 0 1 0 0 0 0 0 1 0 1 1 1 0 0 1 1 0 1 0 1 1 0 0 0 1 1 1 1 0 1 1 1 1 1 1 0 0 0 0 0 0 0 1 1 0 1 1 1 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0% 25% 0% 25% 50% 0% 0% 0% 50% 25% 50% 50% 0% 25% 25% 50% 50% 50% 75% 0% 0% 25% 0% 0% 0% 0% 25% 50% 0% 50% 50% 50% 0% 25% 50% 25% Sample size & power analysis 0 0 0 0 0 1 0 0 0 1 1 1 0 0 1 1 1 1 1 0 0 0 1 0 0 1 0 0 0 1 0 0 0 0 0 0 Statistics Primary statistical test 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Outcome assessment Type of analysis Score 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 33% 33% 33% 33% 33% 67% 33% 33% 33% 67% 67% 100% 33% 67% 67% 100% 100% 100% 100% 33% 33% 0% 67% 33% 33% 67% 33% 33% 33% 67% 33% 33% 33% 33% 33% 33% Full or partial mouth 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 0 1 1 1 Calibration Info on examiner Number of examiners Score 0 0 0 0 0 0 1 0 0 1 1 1 0 0 1 1 0 1 1 1 0 0 1 0 0 0 0 0 1 1 0 0 0 0 0 1 0 0 1 1 1 0 0 0 0 0 1 1 0 0 0 1 1 0 0 0 0 0 0 0 1 0 0 0 0 1 0 0 1 0 0 0 1 1 1 0 1 0 0 0 0 1 1 1 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 50% 50% 75% 50% 75% 25% 50% 25% 25% 75% 100% 100% 25% 25% 75% 100% 75% 50% 50% 75% 50% 50% 75% 50% 75% 50% 50% 50% 75% 100% 50% 50% 50% 50% 50% 75% Lang et al. 1982 Lang et al. 1998 Lindhe et al. 1993 Lucas & Lucas 1999 Mallatt et al. 2007 Mankodi et al. 1992 Mankodi et al. 2005b Mankodi et al. 2005a Mankodi et al. 2011 Mateu et al. 2008 Mauriello & Bader 1988 McClanahan et al. 1997 Mengel et al. 1996 Overholser et al. 1990 Palomo et al. 1994 Paraskevas et al. 2004 Paraskevas et al. 2005 Perlich et al. 1995 Pradeep et al. 2012b Pradeep et al. 2012a Rathe et al. 2007 Renvert & Birkhed 1995 Sanz et al. 1994 Schaeken et al. 1996 Schiff et al. 2006 Schiffner et al. 2007 Sgan-Cohen et al. 1996 Shapira et al. 1999 Sharma et al. 2002 Sharma et al. 2004 Sharma et al. 2010 Spets-Happonen et al. 1991 Spolsky & Forsythe 1977 Sreenivasan et al. 2011 Stephen et al. 1990 Stookey et al. 2005 Svatun et al. 1987 Svatun et al. 1990 Svatun et al. 1993b Svatun et al. 1993a Triratana et al. 1993 1 0 0 0 1 0 ? 0 0 0 0 0 1 1 0 1 1 0 1 1 1 0 0 0 0 0 0 1 1 1 1 1 0 0 0 0 0 0 0 0 0 1 1 1 0 1 0 1 1 1 1 0 0 0 0 0 1 1 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 50% 25% 25% 0% 50% 0% 25% 25% 25% 25% 0% 0% 25% 25% 0% 50% 50% 0% 50% 50% 50% 25% 25% 25% 25% 25% 25% 50% 50% 50% 50% 50% 0% 25% 0% 25% 0% 0% 0% 0% 0% 1 0 0 0 1 0 0 0 0 0 0 0 0 1 0 0 1 0 1 1 1 0 0 0 0 1 0 0 0 0 1 0 0 1 0 0 0 0 1 1 0 1 0 1 1 1 1 1 1 1 1 1 1 1 1 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 1 0 0 1 0 0 0 0 0 0 0 67% 0% 33% 33% 67% 33% 33% 33% 33% 33% 33% 33% 33% 67% 0% 33% 67% 33% 67% 67% 67% 33% 33% 33% 33% 100% 33% 33% 33% 33% 100% 33% 33% 100% 33% 33% 33% 33% 67% 67% 33% 1 1 1 1 1 1 1 1 1 1 0 1 0 1 1 1 0 1 0 1 0 1 1 1 1 0 0 0 1 1 1 0 0 0 1 0 1 1 1 1 1 0 1 0 0 0 1 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 1 0 1 1 1 1 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 1 0 0 0 1 1 1 1 1 0 1 1 0 1 1 0 1 0 1 1 1 1 0 1 1 1 1 1 1 1 1 1 1 0 0 0 1 1 1 50% 50% 75% 25% 25% 50% 50% 50% 75% 50% 50% 25% 25% 50% 25% 75% 50% 25% 50% 25% 25% 50% 50% 50% 25% 25% 50% 50% 50% 75% 75% 50% 50% 50% 50% 0% 25% 25% 50% 50% 75% Triratana et al. 1995 Triratana et al. 2002 Van Leeuwen et al. 2014 Weatherford et al. 1977 Williams et al. 1998 Winston et al. 2002 Wolff et al. 1989 Worthington et al. 1993 Yates et al. 1993 Zimmermann et al. 1993 0 0 1 0 0 1 0 0 0 0 0 1 1 1 1 1 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0% 25% 75% 25% 25% 50% 0% 25% 25% 0% 0 0 1 0 0 0 0 0 1 0 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 33% 33% 67% 33% 33% 33% 33% 33% 67% 33% 1 1 0 0 1 1 0 1 1 1 0 0 0 0 0 0 1 0 1 0 Ethic committee, Informed consent, CONSORT adherence reported, RCT registration: 0, not reported; 1, reported. Sample size & power analysis: 0, not done or not reported; 1, reported. Primary statistical test: 0, not reported; 1, reported. Type of analysis: 0, not reported or per-protocol; 1, intent-to-treat or both intent-to-treat and per-protocol Full or partial mouth: 0, not reported or partial mouth assessment; 1, full-mouth assessment. Calibration: 0, not reported or not performed; 1, performed and described. Info on examiner: 0, no information available; 1, information on examiner/s skills and/or experience. Number of examiners: 0, not reported; 1, available information. 0 1 1 1 0 0 1 1 1 0 1 1 1 1 1 1 1 1 1 0 50% 75% 50% 50% 50% 50% 75% 75% 100% 25% 18