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SILVERDIAMINEFLUORIDESeptember 19, 2019
2
Learning Objectives
By the end of this webinar, participants will be able to:
1. Understand the science of SDF
2. Recognize appropriate application of SDF
3. Identify important considerations when implementing SDF in practice
4. Understand scope of practice issues for hygienists in a public health setting
when new tools are introduced
5. Acknowledge how SDF can impact community-based care delivery
3
Housekeeping
• All lines will remain muted to avoid background noise.
• A copy of the slides and a link to the recording will be shared after the webinar
concludes.
• In order to receive CE credit you must fill out the webinar evaluation, which
will be shared at the end of the presentation. The evaluation must be
completed by EOD Wednesday, September 25 to receive CE credit. CE
certificates will be distributed by October 1.
The DentaQuest Partnership is an ADA CERP Recognized Provider. This presentation
has been planned and implemented in accordance with the standards of the ADA CERP.
*Full disclosures available upon request
4
Q&A Logistics
After the presentations we hope to have some
time for Q&A
Two ways to engage:
• Use the raise hand feature and we will
unmute you
• Type your question in the chat box
5
Presenters:
Jeremy Horst DDS, PhD Margaret Langelier, MSHSA
Jeremy HorstDDS,PhD
UCSF
Silver Diamine Fluoride
is a Treatment for Dental Caries
SDF - what is it?
Colorless liquid
25% silver: antimicrobial
8% ammonia: solvent
5% fluoride: remineralization
SDF - what does it do?
- Arrests dental caries
- Prevents dental caries• directly & indirectly
- Decreases dentin hypersensitivity
- Turns de-/hypo-mineralized areas BLACK.
October 2018, the ADA
“Clinicians are encouraged to prioritize use of [nonrestorative treatments] based on effectiveness, safety, and feasibility." - JDR
"38% silver diamine fluoride solution applied biannually [is] effective for arresting advanced cavitated carious lesions on any coronal surface (moderate to high certainty).” - JADA
Hamama, Aust Dent J 2015
SDF chases bugs down into tubules
metagenomic NextGen Sequencing
Milgrom + Horst et al. J Dent, 2018
No dangerous effects on microbiome.
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●Lactobacillus reuteri
Acidithiobacillus caldus
Sulfuriferula sp. AH1
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FDR<0.01
|LogFC|>2
both
microbes post- vs pre-arrest
No significant decreases
stat
sig
(lo
g 10) Lactobacillus
reuteri
antimicrobial resistance genes
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No changes
SDF microstructures
SDF casts silver rebar millimeters into dentin, reinforcing the lesion and sustaining kill.
Seto, Horst, Frachella, Duffin, MacLean
Accessiblecaries lesion.
1. Isolate with cotton.2. Air dry. 3. Apply with microbrush.4. Protect reaction for ~1 minute.
Arrested cavities after 1 year
How do you use it?
Suggested frequency protocol
• For mild caries:
q6mo
• For moderate caries:
q6mo + 2-6 week loading dose
• For severe caries:
q6mo + two 2-6 week loading doses + 3mo
, 2018
309
Car
ies
Arr
est
in k
ids
Horst, Adv Dent Res 2018
, 2018
309
Car
ies
Arr
est
in k
ids
no caries removal before SDF!!!
Horst, Adv Dent Res 2018
, 2018
309
Car
ies
Arr
est
in k
ids 2x > 1x / year
keep applying!!!
Horst, Adv Dent Res 2018
, 2018
309
Car
ies
Arr
est
in k
ids
Horst, Adv Dent Res 2018
9%
9%
loading doses help, keep applying.
, 2018
309
Car
ies
Arr
est
in k
ids
similar effect vs ART
Horst, Adv Dent Res 2018
arrested
What to watch for:
active growing
@ 6 months.
45% 35% 20%
Car
ies
Arr
est
in k
ids
Car
ies
Arr
est
in k
ids
6mo 18mo
least
most
Likelihood of SDF caries arrest = cleansibility
Craig & Powell, Dental Outlook. 2013
most
least
medium
medium
Car
ies
Pre
ven
tio
nin
kid
s
pre
ve
nte
d f
raction
of
carie
s le
sio
ns
0%
0.5 1 1.5 2 2.5 3
time (years)
50%
100%
50%
100%
50%
100%
50%
100%
50%
100%
50%
100%
50%
100%
50%
100%
SDF q1year
Resin Sealant
NaF q6mos
Liu et al., 2012
482 9.1 year olds
control: 4.6 new lesions
SDF q1year
exc SDF q1year
exc NaF q3mos
NaF q3mos
Chu et al., 2002
308 3-5 year olds
control: 1.6 new lesions
SDF once
GIC Sealant
Monse et al., 2012
708 6-8 year olds
control: 0.44 new lesions
40% AgF once
849 5-8 year olds
control: 11.7 new lesions
background: 10% SnF2
Green, 1989
50%
100%
SDF q1year
SDF q6mos
Nguyen et al., 2017
295 2-3 year olds
control: 9.0 new lesions
SDF 3x/1week
25 6-8 year olds
control: 0.88 new lesions
Sato & Saito, 1970
SDF q6mos
Llodra et al., 2005
373 6 year olds
control: 2.5 new lesions
50%
100%
SDF q3mosTsutsumi et al., 1981
58 5-7 year olds
mean (61%)
weighted average
SDF q3mos
Yoshida et al., 1976
26 1-2 year olds
control: 2.2 new lesions
Horst & Heima, Compendium 2019
0%
50%
100%
0.5 1 1.5 2 2.5 3
SDFq1year
+OHIq6mon
control
Zhang et al., 2013 227 60-89 year olds
0.91 lesions at start
0%
50%
100%
SDFq1year
SDF,KIq1year
control
Li et al., 2016 67 72 year olds
1.9 lesions at start
0%
50%
100%
SDFq1yearNaFq3monChlorhexq3mon
0%
50%
100%
0.5 1 1.5 2 2.5 3
SDFq1year
+OHIq6mon
Tan et al., 2010 203 79 year olds
control: 2.5 new lesions
Zhang et al., 2013 227 60-89 year olds
control: 1.3 new lesions
Arr
est
Older adults
Pre
ven
tio
n
time (years)
Patient Name:
Date of Birth:
Medical Record Number: SanFranciscoDepartmentofPublicHealthDentalServices
INFORMEDCONSENTFORSILVERDIAMINEFLUORIDE
Factsforconsideration:
· Silverdiaminefluoride(SDF)isaliquidthathelpsstoptoothdecay.SDFisappliedevery3,6or12months.
· AsmallamountofSDFisappliedtothedecayedtootharea.
· AfterSDFapplicationnoeatingordrinkingfor60minutesandnotoothbrushinguntilthefollowingmorning.
· Thedecayedareawillstainblackpermanently.Healthytoothstructurewillnotstain.
· IshouldnotbetreatedwithSDFif:1)Iamallergictosilver.2)Therearepainfulsoresorrawareasonmygumsoranywhereinmymouth.
BenefitsofreceivingSDF:
· Helpsstoptoothdecay.· Fast.
· Donotneedtonumbteeth.· Doesnothurt.
RisksofreceivingSDF:
· Theaffectedareawillstainblackpermanently.ThismeansSDFisworking.· Tooth-coloredfillingsandcrownsmaydiscolorifSDFisappliedtothem.· After SDF treatment, a filling or crown might still be needed.
· Ifaccidentallyappliedtotheskinorgums,abrownorwhitestainmayappearthatcausesnoharm,cannotbewashedoffandwilldisappearinonetothreeweeks.
· Permanent dark spots if spilled on clothing.· Allergic reaction.
· Riskthattheprocedurewillnotstopthedecay.· Not every cavity can be treated with SDF
AlternativestoSDF,notlimitedtothefollowing:
· Notreatment,whichmayleadtocontinuedbreakdownofthetooth.Symptomsmaygetworse.· Placementoffillingsorcrowns,extractionsorreferraltoaspecialist.
I have read this form. I understand the treatment and have had the chance to ask questions. I have seen the photo
of how teeth may look after SDF discolors the cavities. I understand that I may refuse treatment with SDF. I
understand that I can decide to have no treatment or I can have fillings, crowns, or extractions done at this or
another dental office.
I consent and authorize SFDPH Dental Services to use Silver Diamine Fluoride to help stop tooth decay.
Signatureofpatient/parent/guardian______________________________________________________Date____________Signatureofwitness____________________________________________________________________________Date____________
Consent = Conversation
This is a consent document.
Risks?Benefits?Alternatives?
Simple language.
Show pictures!
sites.google.com/site/jeremyahorst/SDFconsents
SDF take-homes
1. Arrests 81% of lesions when used 1+/year.
2. Prevents 62% of new lesions.
3. Dry before use.
4. Safe.
5. Stains the crap out of everything.
THANK YOU
You can get these slides and more at:
http:// bit.ly / JeremyDQPH
My email:
jahorst @ gmail.com
pH 13!!!!
compiled by Dr. Jeanette MacLean
compiled by Dr. Jeanette MacLean
Dr. Jason Hirsch
Esthetics? SSC or SDF
Dr. John Frachella
Esthetics? Handled.
Dr. John Frachella
=32.5 µL
50,000 ppm F
2.3 L0.7 ppm FHow much Fluoride?
6 1=
Implications of Scope of Practice Regulations on
Administration of Silver Diamine Fluoride
Presented by: Margaret Langelier
The Oral Health Workforce Research Center
Center for Health Workforce Studies
University at Albany, School of Public Health
September 19, 2019
Why Are We Having This Discussion?
• Fluoride is widely recognized as an effective primary prevention tool
o In water supplies, in toothpaste, children and others receive fluoride supplementation in many forms
o Some concern about fluorosis but guidelines are well established and mainly accepted
o Many states allow not only dental professionals but school nurses, medical assistants and physicians, etc. to apply
• So what is the issue with Silver Diamine Fluoride (SDF)?
o It would appear that the use of SDF would readily fall within regulatory permissions to apply fluoride
o The general rule is that clinicians who are permitted to place fluoride varnish would likely be allowed to place SDF but in some states it could
be that only dentists are permitted to “perform caries arrest by medicament (Avear Fa et al, 2016)
• On second thought - Is SDF different and if so, what are the conditions under which it can be placed?
o Fluoride is considered a primary measure to prevent caries
o SDF might be considered a primary or a secondary or a tertiary preventative measure – it is used to prevent caries, to control existing caries,
and to also reduce symptoms of the disease
oralhealthworkforce.org 36
What Do We Know From the Literature?
• SDF is considered one of many tools in a caries management protocol that also include educational and
motivational interviewing interventions with patients
• Dental hygienists (DHs) are well positioned by training and education to provide preventive and educational
services, including application of SDF
• SDF is useful in the young, especially the uncooperative or those without easy access to a dental home,
among special needs population with limited tolerance for traditional therapies, and for the elderly
• These populations are often found in the dental safety net
• Many states permit expanded scope of practice for DHs in public health settings
• However, do states permit DHs to supply this service?
oralhealthworkforce.org 37
A Primer on Scope of Practice For Health Professions
• Term inclusive of the who, what, where, and when of practice
• Scope of practice (SOP) is described in statute and regulation by each state
o Legislature determines basic qualifications and parameters/ boundaries
o Governing board interprets legislative intent, describes the details of practice allowances, and manages
compliance and discipline
• Areas where barriers may arise in SOP that limit the ability of DHs to apply SDF
o Tasks allowed
o Classification of SDF
o Levels of required supervision
o Requirements for dental visit prior to any DH intervention
o Assessing or diagnosing
o Prescriptive/ dispensing authority
oralhealthworkforce.org 38
Scope of Practice for DHs Varies Widely by State
oralhealthworkforce.org 39
The Content and Composition of Statutes
and Regulations is State Specific
• Explicit or implicit permission to provide SDF may be found in various parts of statute
or regulation
o Definitions of the practice of dental hygiene
o Explicit provisions (e.g. list of allowable tasks)
o Implicit provisions (e.g. not included on list of prohibited tasks)
• Provisions in law or rules may be specific/ descriptive (FL)
• General permission by inference (AK, AZ)
• Board advisory opinions – over recent three or four years
o In many states, the board has rendered specific opinions relative to SDF (MT, GA, NH, NJ, etc.)
oralhealthworkforce.org 40
Level of Required Supervision is Critical to Enabling
Provision of SDF in Public Health Settings
oralhealthworkforce.org 41
• Application of SDF in traditional practice settings is mostly not problematic
o Task delegated by the supervising dentist
• Patients may not always present in private dental office
o WIC programs, schools, nursing homes, mobile and portable programs, migrant health centers, group
homes
• Many possible barriers In public health settings where patients may be ideal candidates for SDF therapy
o Dentist is not always present when DHs are with patients
o Application requires prior diagnosis and treatment planning
o Patient may not have access to a dentist to order or prescribe SDF
• Some states allow unsupervised or independent practice, collaborative practice protocols or public health
supervision in public health settings or to treat underserved populations (NY, ME, MT, SD)
Level of Supervision Required by States
for Fluoride Application by DHs
• The American Dental Hygienists’ Association provides an overview of DH practice acts by state on its Website. Fluoride application is permitted in every state but level of required supervision of the DH varies widely
o 2 states - direct supervision under all circumstances
o 26 states - under general supervision (dentist must authorize) but these states also have
some provision for direct access to this service from a DH without prior dental
authorization
o 2 states - direct access to fluoride application from a DH under all circumstances
o 14 states - under general supervision/prior authorization of a dentist
o 6 states - direct supervision but also allow general supervision under certain
circumstances
o 1 state - general supervision but allows direct access if a collaborative protocol is in place
oralhealthworkforce.org 42
How is Silver Diamine Fluoride Classified
• Is SDF a fluoride, a topical solution, a preventative chemical agent, a desensitizing agent, a medicament for
control or prevention of caries?
o FDA approved use in 2014 as a medical device to be used as a desensitizing agent
o In 2017, FDA gave the product breakthrough therapy status which allowed clinical trials and off label use as a “caries
arresting” treatment
o D1354 “interim caries arresting medication application” (CDT 2016)
• Is SDF the same as fluoride varnish?
o Regulations may limit the fluoride concentration that is permissible for dispensing by a DH
o SDF is 5% fluoride (2X concentration of varnish), 25% silver, 8% ammonia, remainder is water
• Colorado allows fluoride varnish with 5% concentration
• Is SDF a dental sealant ?
o Sealants are usually placed on non-cavitated teeth
o SDF is generally used on teeth with incipient or carious lesions
oralhealthworkforce.org 43
Is SDF Provisional or Permanent, Preventative or
Therapeutic?
• Is SDF an atraumatic restoration?
o Atraumatic restorations are considered provisional (reversible) therapies
o SDF application may cause permanent, irreversible changes to the tooth
o Guidelines - SDF should be considered an “interim” solution until patient can access dental consultation and intervention
o SDF is a useful tool for palliative interventions in the elderly where the cosmetic effects are of less importance than in
young children and may be the only treatment planned
• Is SDF preventative or therapeutic?
o Stannous/sodium fluoride varnish is widely viewed as preventive therapy
o SDF is generally applied to teeth with active caries to control and prevent progression
o SDF is both preventive and therapeutic with collateral impact on adjacent teeth
o SDF may also have some restorative properties
o Some boards mandate that SDF can only be used preventatively
oralhealthworkforce.org 44
States Classify SDF in Various Ways
• Arizona - “preventive and therapeutic agents” under general supervision
• Alabama - “topical fluoride” under direct supervision
• Florida - application of topical fluorides approved by the ADA or FDA including SDF
under general supervision or without supervision
• Hawaii - apply preventive chemical agents approved by the board. Board minutes
(January 23, 2017) indicate that SDF is a “preventive chemical agent”
• Georgia - use SDF for “preventative purposes only but not for treatment” (Georgia
Board of Dentistry minutes, May 4, 2018)
• Indiana - use antiseptic sprays, washes or medicaments for “control or prevention” of
dental caries
oralhealthworkforce.org 45
What Provisions in SOP Enable Access to SDF?
Public Health Dental Hygiene Practice/ Collaborative Practice/ Unsupervised
• Massachusetts allows DHS to apply anti-cariogenic agents including fluoride varnish and desensitizing agents under
general supervision. Public health DHs can apply these agents under the written collaborative agreement (234CMR:
5.11: Delegable Procedures)
• Florida permits DHs who have received formative or continuing education in SDF to apply SDF and fluoride varnishes
without supervision (645B-16.007 (4))
• Vermont Board issued an opinion (Meeting minutes November 2018) that Public Health DHs could apply SDF if several
conditions were met
o DH was appropriately trained
o Caries were suspected and patient presented with immediate need for care
o Patient did not have an accessible dental home
o Patient or parent executed a board approved informed consent
o Limited to two applications to the same tooth – patient must be referred to see dentist
oralhealthworkforce.org 46
How does a DH determine the need for SDF?
• Very few states allow DH diagnosis, most allow DH assessment and several also allow DH
treatment plans
• Fluoride is considered a preventive measure; preventive measures are generally within scope of
allowable services when public health dental hygiene is being practiced
• Some benign neglect relative to this issue
o Likely viewed as within DHs ability to “assess” the need for SDF
o SDF has primary preventive effects even though therapeutic/restorative effects are
coincident
• American Academy of Pediatric Dentistry suggested guidelines -a DH can place SDF, a dentist
should first diagnose incipient or mild caries, build a treatment plan that includes SDF, and
actively monitor the patient post application.
• Oklahoma - apply SDF but only after a dentist has diagnosed the patient and prescribed SDF
• Utah - apply SDF in accordance with a dentist’s diagnosis and treatment plan
oralhealthworkforce.org 47
What Other SOP Issues Affect Provision of SDF by
DHs?
• Regulations addressing dispensing or prescriptive authority vary by state
o Colorado law allowed unsupervised DHs to prescribe, administer, and dispense fluoride, fluoride varnish,
and antimicrobial solutions (CO Section 12-35-124 (1) but SDF was not on the prescriptive formulary
▪ Board issued a rule that SDF could only be applied under direct, indirect, or telehealth supervision
o Montana prescriptive/ dispensing authority specific to stannous or sodium fluoride (unless otherwise
stated) Rules (24.138.419(3) – amended in 2019 to include SDF 5%
• Payment restrictions
o Does the state Medicaid program cover the service? If so, under what conditions?
o Do managed care organizations in the state recognize DHs as providers?
o What about patients who lack dental insurance (e.g. the elderly)? Is there an adult dental benefit in
Medicaid?
• Prior education and training required in some states – formative program or CE?
oralhealthworkforce.org 48
What is the Impact of this Variability on Patient Care?
• States continue to issue opinions to clarify permissions to apply SDF
• Patients with limited ability to complete a dental visit may not benefit from the positive effects
of SDF when a prior dental visit is required
• Patients with compromised access to services may not be able to complete multiple visits to
obtain dental permission for SDF
• Especially for difficult to treat patients, more extensive or expensive dental interventions may
not be the most appropriate treatment choice
• While there is a CDT code to bill for SDF applications, state Medicaid programs may not be
paying for the services and some may only pay when it is part of a dentists’ services
oralhealthworkforce.org 49
Thank You
Acknowledgments:
• The American Dental Hygienists’ Association for their help with identifying state level provisions related to dental hygiene scope of practice and provision of Silver Diamine Fluoride
Questions?
Visit Us:
http://www.chwsny.org/
www.oralhealthworkforce.org
oralhealthworkforce.org 50
ReferencesAlaska Board of Dental Examiners, Minutes of Meeting, December 8, 2017
https://www.commerce.alaska.gov/web/Portals/5/pub/DEN_Minutes_2017.12.pdf
American Dental Hygienists Association. Dental Hygiene Practice Act Overview: Permitted Functions and
Supervision Levels by State. https://www.adha.org/resources-
docs/7511_Permitted_Services_Supervision_Levels_by_State.pdf
American Dental Hygienists Association. State Information on Silver Diamine Fluoride. Personal Communication/
Unpublished Document
American Academy of Pediatric Dentists. AAPD Fact Sheet on Silver Diamine Fluoride in Arresting Dental Caries
and its Use in Medicaid Populations.
http://www.elevateoralcare.com/site/images/AAPDSDFmedicaid.pdf?promocode=&promocodeaction=overwrite
Arizona State Board of Dental Examiners. Open Session Minutes June 7, 2019.
https://dentalboard.az.gov/sites/default/files/Open_Session_MInutes_6-7-2019.pdf
Arizona State Board of Dental Examiners. Board Rules. https://dentalboard.az.gov/statutes-rules/rules
oralhealthworkforce.org 51
References
Avear Fa B, Horst JA, Hirsch JP, Duffin S, Wong A, Young DA. Arresting Caries. Dimensions of Dental Hygiene.
July 2016. https://dimensionsofdentalhygiene.com/article/arresting-caries/
Board of Dental Examiners of Alabama Administrative Code. Chapter 270-x-3 Dental Hygienists.
http://www.alabamaadministrativecode.state.al.us/docs/den/270-X-3.pdf
Board of Dental Examiners, State of Hawaii. Minutes of Meeting. Monday January 23, 2017.
http://www.alabamaadministrativecode.state.al.us/docs/den/270-X-3.pdf
Colorado Dental Association. Silver Diamine Fluoride Application by Dental Hygienists.
https://cdaonline.org/wp-content/uploads/2017/09/GRTab5c-SDF.pdf
Commonwealth of Massachusetts. Board of Registration in Dentistry. Meeting Minutes. December 7, 2016.
https://www.mass.gov/lists/previous-meetings-of-the-board-of-registration-in-dentistry#2016-
Florida Administrative Code. https://floridasdentistry.gov/Forms/laws-and-rules-dentistry.pdf
Georgia Board of Dentistry. Meeting Minutes. May 4, 2018. https://gbd.georgia.gov/2018-meeting-minutes
oralhealthworkforce.org 52
ReferencesIndiana General Assembly. Indiana Code. Article 13. Dental Hygienists.
http://iga.in.gov/legislative/laws/2019/ic/titles/025#25-13
Montana Secretary of State. The Board of Dentistry.
http://www.mtrules.org/gateway/ChapterHome.asp?Chapter=24%2E138 and
http://boards.bsd.dli.mt.gov/Portals/133/Documents/den/24-138-76pro-arm.pdf?ver=2019
South Dakota Dental Association. Dentistry in South Dakota. Silver Diamine Is Seeing Use in South Dakota.
Summer 2018. https://www.sddental.org/docs/librariesprovider46/default-document-library/2018-s
Vermont Board of Dental Examiners. November 14, 2018 meeting minutes.
https://www.sec.state.vt.us/media/914464/dental-minutes-2018-1114.pdf
Kelly M. Are RDHs allowed to apply Silver Diamine Fluoride (SDF) in your state? Access. November 2017.
Oral Health Workforce Research Center. Variation in Dental Hygiene Scope of Practice by State.
http://www.oralhealthworkforce.org/resources/variation-in-dental-hygiene-scope-of-practice-by-state/
oralhealthworkforce.org 53
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