CADTH Health Technology Review

Dental Sealants for the Prevention of Dental Caries

Rapid Review

Authors: Robyn Haas, Thyna Vu, Jennifer Horton

Abbreviations

ADA

American Dental Association

AGREE

Appraisal of Guidelines for Research and Evaluation

AMSTAR

A MeaSurement Tool to Assess systematic Reviews

GRADE

Grading of Recommendations Assessment, Development and Evaluation

SDCEP

Scottish Dental Clinical Effectiveness Program

Key Messages

Context and Policy Issues

Dental sealants, sometimes referred to as pit and fissure sealants, are coatings that are bonded to the chewing surfaces of the teeth.1 They may be resin-based, glass ionomer-based, or a combination of both materials (i.e., hybrid).2 Regardless of the material from which they are made, sealants are generally used to prevent caries, or tooth decay, from occurring in both primary and permanent teeth.1,2 When sealants are applied to surfaces of the teeth, they form a physical barrier that can help prevent buildup of food particles and colonization by cariogenic bacteria.1,3 Additionally, sealants can make teeth easier to clean, which is particularly important for pit and fissure surfaces as their anatomy makes cleaning difficult, even with attentive home care.2

While the evidence for the clinical effectiveness of dental sealants in primary teeth is limited,2 findings from a 2017 Cochrane systematic review4 suggested that sealants are effective in preventing dental caries in the permanent teeth of children and adolescents. Dental caries are a global issue that affect people of all ages, and so their prevention and effective treatment is crucial.5 The use of dental sealants for preventing dental caries also is important because untreated initial caries can result in a number of health issues including cavitation of the tooth, pain, inflammation, difficulty chewing, and loss of tooth.2 These outcomes can lead then lead to further health issues and negatively affect and individual’s quality of life.2,6 Furthermore, given the widespread nature of dental caries, failure to adequately intervene (e.g., with sealants) can result in a notable economic burden.2

Sealants are most often applied by dentists or dental hygienists.1 It is important to ensure that dental care providers are aware of the current best practices and procedures regarding dental sealants to ensure the greatest possible health outcomes for patients. The aim of the current report is to summarize and critically appraise the evidence-based guidelines regarding the use of dental sealants for the prevention of dental caries in children and adolescents.

Research Question

What are the evidence-based guidelines regarding the use of dental sealants for the prevention of dental caries in children and adolescents?

Methods

Literature Search Methods

A limited literature search was conducted by an information specialist on key resources including MEDLINE, the Cochrane Database of Systematic Reviews, the International HTA Database, the websites of Canadian and major international health technology agencies, as well as a focused internet search. The search strategy comprised both controlled vocabulary, such as the National Library of Medicine’s MeSH (Medical Subject Headings), and keywords. The main search concepts were dental sealants and pediatrics. CADTH-developed search filters were applied to limit retrieval to guidelines. Where possible, retrieval was limited to the human population. The search was completed on January 16, 2023 and limited to English-language documents published since January 1, 2018.

Selection Criteria and Methods

One reviewer screened citations and selected studies. In the first level of screening, titles and abstracts were reviewed and potentially relevant articles were retrieved and assessed for inclusion. The final selection of full-text articles was based on the inclusion criteria presented in Table 1.

Table 1: Selection Criteria

Criteria

Description

Population

Individuals aged 5 to 18 years

Intervention

Any formulation dental sealants (e.g., resin composite, glass ionomer composite, hybrid)

Comparator

Not applicable

Outcomes

Recommendations regarding best practices (e.g., indication for sealants, types of sealants, treatment protocols, preparation of teeth)

Study designs

Evidence-based guidelines

Exclusion Criteria

Articles were excluded if they did not meet the selection criteria outlined in Table 1, they were duplicate publications, or were published before 2018. Guidelines were excluded if their methodology was unclear.

Critical Appraisal of Individual Studies

The included guidelines were critically appraised by 1 reviewer using the Appraisal of Guidelines for Research and Evaluation (AGREE) II instrument7 as a guide. Summary scores were not calculated for the included studies; rather, the strengths and limitations of each included publication were described narratively.

Summary of Evidence

Quantity of Research Available

A total of 77 citations were identified in the literature search. Following screening of titles and abstracts, 70 citations were excluded and 7 potentially relevant reports from the electronic search were retrieved for full-text review. Eight potentially relevant publications were retrieved from the grey literature search for full-text review. Of these potentially relevant articles, 12 publications were excluded for various reasons, and 3 evidence-based guidelines5,8,9 met the inclusion criteria and were included in this report. Appendix 1 presents the PRISMA10 flow chart of the study selection.

Additional references of potential interest are provided in Appendix 5.

Summary of Study Characteristics

Three evidence-based guidelines were included in this report.5,8,9

Additional details regarding the characteristics of included publications are provided in Appendix 2.

Study Design

The 3 guidelines were developed by the American Dental Association (ADA),5 the Scottish Dental Clinical Effectiveness Program (SDCEP),8 and a collaboration between the European Organization for Caries Research, the European Federation of Conservative Dentistry, and the German Association of Conservative Dentistry (referred to in this report as Splieth et al.).9

The ADA and SDCEP guidelines5,8 were published in 2018 and the guideline by Splieth and colleagues9 was published in 2020. The ADA and SDCEP guidelines5,8 each collected evidence to inform their recommendations using a systematic search of the literature. Randomized controlled trials were eligible for inclusion in the ADA guidelines,5 and systematic reviews and guidelines were eligible for inclusion in the SDCEP guidelines.8 The SDCEP guidelines also used systematic reviews from a previously developed guideline to inform their work.8 The recommendations made by the ADA and SDCEP were based on consensus.5,8 The ADA5 used a vote to resolve disagreement over recommendations. Splieth et al.9 obtained evidence from 3 hand-selected systematic reviews as well as a nonsystematic literature search. In addition to the hand-selected studies, the group included other systematic reviews and guidelines to help develop the guideline. Recommendations were based on a vote.

Recommendations included in the guideline developed by Splieth et al.9 were classified as strong (recommendations supported by consistent, clear evidence [e.g., many randomized controlled trials]), moderate (recommendations based on moderate evidence [e.g., high-quality clinical studies]), or weak (recommendations based on expert opinion only or those based on weak evidence [e.g., only low-quality studies or studies with contradicting results]). For the guideline developed by the ADA,5 evidence informing the recommendations was rated based on the Grading of Recommendations Assessment, Development and Evaluation (GRADE) approach as being of high, moderate, low, or very low certainty. The SDCEP guideline8 used the A MeaSurement Tool to Assess Systematic Reviews (AMSTAR) checklist to assess the quality of included systematic reviews and the AGREE II instrument to assess the quality of included guidelines. For both guidelines, the strength of recommendations were classified as either strong (most people would choose the recommended course of action) or conditional (the majority of people would choose the recommended course of action, but many would not).5,8

Country of Origin

The SDCEP guideline8 was developed for use in Scotland. The guideline by Splieth et al. and the ADA guideline do not report the country or region where they are meant to apply, but were developed by groups located across Europe9 and in the US,5 respectively.

Patient Population

The intended users of the guideline by Splieth et al.9 was dentists. The intended users of both the ADA and SDCEP guidelines included dental practitioners, other members of the primary care dental team, and those providing community dental education and coordination.5,7 The ADA guideline also noted policy-makers as potential users.5 The target population for the SDCEP guidelines was children from birth up to the age of 16 years.8 Similarly, the target population of the Splieth et al. guidelines was children (with no age range specified).9 The target population for the guidelines developed by the ADA included both children and adults.5 Only recommendations that apply to children 5 to 18 years of age were considered relevant to the current report.

Interventions

The guideline by Splieth et al.9 considered interventions for caries management in children, specifically regarding early childhood caries, caries in primary molars, and occlusal caries in the permanent teeth of children and adolescents. The SDCEP guideline8 considered a wide range of interventions for the prevention and management of dental caries including assessment, dental care management, delivery of preventive care, options for caries management, delivery of restorative care, referral, and management of suspected dental neglect. The ADA guideline5 considered nonrestorative interventions and treatments to arrest or reverse noncavitated and cavitated carious lesions.

Only the recommendations related to dental sealants were considered relevant for this report.

Outcomes

All guidelines considered the efficacy outcome of success of treatment in preventing dental caries when formulating recommendations.5,8,9 The ADA guidelines5 considered additional outcomes, including the arrest or reversal of noncavitated and cavitated carious lesions, nausea, fluorosis, vomiting, allergic reactions, staining, tooth sensitivity, soft-tissue trauma, progression of symptoms, pulpal health, lack of retention (for sealants), premature loss or extraction, and secondary caries.5 The guideline by Splieth et al. also examined pain as an outcome.9

Summary of Critical Appraisal

A narrative summary of strengths and limitations of the included studies is provided in this section. Additional details regarding the strengths and limitations of included publications are provided in Appendix 3.

All guidelines5,8,9 stated their overall objectives, described their relevant health questions, and indicated the populations to whom the guidelines were meant to apply. All guidelines5,8,9 also described target users and included individuals from relevant professional groups in the guideline development process. The guidelines developed by the ADA5 and SDCEP8 sought the views of the public and patients but Splieth et al.9 did not. To incorporate the views of the public, the SDCEP guideline8 was posted on the group’s website for comment for a period of 12 weeks. Additionally, 2 patient representatives were part of the guideline development group. Similarly, the recommendations from the ADA guideline5 were posted for review by the public on the ADA Centre for Evidence-Based Dentistry website. Both the ADA and SDCEP guideline development groups reviewed the comments received and incorporated feedback into their work as appropriate.5,8

The guidelines by the ADA and SDCEP used systematic methods to search for evidence, clearly described the criteria for selecting the evidence, and discussed the strengths and limitations of the body of evidence.5,8 This, in turn, increases the reproducibility and decreases the risk of bias in the selection of studies that were used to inform recommendations. For the ADA guideline,5 the full description of the systematic search and selection criteria are available in an associated systematic review discussed in the guideline. The ADA and SDCEP guidelines used validated tools to perform quality assessments like GRADE (used by the ADA) and AMSTAR and AGREE II (used by SDCEP).5,8 Splieth et al.9 hand-selected 3 systematic reviews and performed a nonsystematic literature search of the evidence to inform their recommendations. They included some description of their selection criteria and the strengths and limitations of the evidence; however, the description was minimal, thereby decreasing the reproducibility of the systematic review used to inform the guidelines. All 3 guidelines5,8,9 clearly described their methods for formulating recommendations. The ADA and SDCEP guidelines discussed health benefits and risks, described updating procedures, and were externally reviewed.5,8 However, these factors were not clearly reported or addressed in the Splieth et al. guideline.9 External reviewers of the SDCEP guideline8 included dentists in Scotland, organizations representing patient groups, and potential users of the guideline. External reviewers of the ADA guideline5 included numerous stakeholders, such as the Academy of Dental Materials, American Dental Hygienists’ Association, and the National Institute of Dental and Craniofacial Research, among other organizations. The link between the recommendations and supporting evidence was clearly presented in the guidelines by the ADA and SDCEP.5,8 The link between recommendations and the supporting evidence was only partially apparent in the Splieth et al. guideline.9 While the guideline provided some discussion of the evidence for each recommendation, the details of the associated studies (e.g., number of studies, number of participants, type of study) were not adequately described.

All guidelines5,8,9 were clear in their presentation. The recommendations were unambiguous, clearly identifiable, and various options for management of oral and dental health were discussed.

None of the guidelines described facilitators and barriers to their application. The SDCEP guideline8 noted that barriers to implementation of the recommendations were considered when developing the guideline, but specific examples were not given. The SDCEP guideline8 provided detailed explanations for how to put each recommendation into practice by providing associated images, instructions, and discussion of additional considerations for various populations (e.g., high risk versus standard risk) where applicable. The ADA5 guideline provided some flow charts to help end users visualize treatment pathways associated with the recommendations. However, it did not include additional details on the methods by which the recommendations can be put into practice, nor did it provide other resources such as educational tools or how to manuals. The guideline by Splieth et al.9 did not provide advice or tools for putting the recommendations into practice. Only the guideline by the ADA5 discussed potential costs and the consideration of alternatives for some of the recommendations, though discussion of human resources, such as staffing, were not mentioned. None of the guidelines discuss monitoring or auditing criteria.5,8,9

Editorial independence was ensured by all guidelines.5,8,9 Each publication provided a statement about the guideline development group’s conflict of interest and listed funding sources.

Overall, the methodology of the ADA and SDCEP guidelines5,8 were rigorous, comprehensive, and clearly reported. Despite the use of less rigorous methodology for identifying and selecting evidence, the guideline by Splieth et al.9 fulfilled many of the criteria in the AGREE II instrument.

Summary of Findings

Appendix 4 presents the detailed recommendations and supporting evidence that are relevant to the current report.

Recommendations Regarding the Use of Dental Sealants

The guideline by Splieth et al.9 recommends the use of preventive sealants in instances where there is a higher caries risk, activity, or prevalence (moderate recommendation). The guideline also recommends that preventive sealants be placed with low viscosity resin composites; however glass ionomer compound can be used when there are issues with moisture control (weak recommendation).9 Additionally, the guideline recommends that noncavitated occlusal caries lesions should be sealed if noninvasive care is not possible (weak recommendation).9 Finally, the guideline recommends the possibility of sealing remaining fissures of occlusal cavitated lesions following restoration with a filling, depending on the caries risk (weak recommendation).9 The authors did not report the quality of evidence associated with each recommendation.

The SDCEP guideline8 recommends that fissure sealants should be placed on permanent molars as early as possible for the prevention of dental caries (strong recommendation), based on moderate quality evidence.

The ADA guideline5 recommends the use of sealants alone or in combination with 5% sodium fluoride varnish over the use of other treatments to arrest or reverse noncavitated carious lesions on occlusal surfaces of primary or permanent teeth (strong recommendation), based on moderate certainty evidence. The guideline5 also recommends sealants alone as 1 possible treatment to arrest or reverse noncavitated carious lesions on approximal surfaces of primary and permanent teeth (conditional recommendation), based on low to very low certainty evidence.

Limitations

There were few guidelines meeting the inclusion criteria for this report were identified. The guidelines5,8,9 also lacked some specificity in their recommendations in terms of demographic information (e.g., the exact age that recommendations are applicable to) and only some of the recommendations mentioned the type of sealant material. Additionally, several of the recommendations were based on a low or very low quality of evidence, potentially limiting their applicability. Finally, none of the guidelines5,8,9 were developed in Canada, making the generalizability of the findings of this report to Canadian settings unclear.

Conclusions and Implications for Decision- or Policy-Making

Three evidence-based guidelines5,8,9 were included in this report. These guidelines recommend the use of dental sealants as preventive treatments for both dental caries and cavities in various clinical scenarios. The basis for these recommendations was evidence that ranged from very low quality to moderate quality. Overall, 2 of the included guidelines5,8 were highly rigorous, comprehensive, and clear in their methodology and reporting. One guideline9 used methods for identifying and selecting evidence that were less rigorous; however, it still met many of the criteria outlined in the AGREE II instrument.

Overall, the target population of each evidence-based guideline5,8,9 was broad and not particularly specific to subgroups within the pediatric population, making the recommendations generalizable to most users. However, because the guidelines were not specifically for use in Canada, the generalizability to Canadian settings was unclear.

A notable gap across the included guidelines was the discussion of facilitators and barriers to the guidelines’ application, as well as discussion of potential resource implications of applying recommendations. This, in turn, may make the implementation of the recommendations into practice more difficult. There were also gaps in recommendations about the use of specific materials for sealants (e.g., resin, glass ionomer compound), and guidance on patient selection in terms of appropriateness for sealants. This could leave room for uncertainty when applying these recommendations in clinical practice.

Higher quality clinical studies investigating the effectiveness of dental sealants for the prevention of dental caries could ultimately result in more robust recommendations. Future guidelines that are developed using rigorous methodology (including discussion on resource implications and the facilitators and barriers to applying the recommendations) and that are intended for use in Canadian settings may benefit clinicians and decision-makers. Finally, direction around the characteristics of patients appropriate for dental sealants as well as guidance on the optimal use of different sealant materials may be helpful for guideline users.

References

1.Nowak AJ WJ. Preventive dental care and counseling for infants and young children. In: Post TW, ed. Waltham (MA): UpToDate; 2022: www.uptodate.com. Accessed 2023 Feb 7.

2.Ramamurthy P, Rath A, Sidhu P, et al. Sealants for preventing dental caries in primary teeth. Cochrane Database Syst Rev. 2022(2).

3.Heymann HO, Swift EJ, Ritter AV. Sturdevant's Art and Science of Operative Dentistry. 6th ed. St. Louis (MO): Elsevier-Mosby; 2013.

4.Ahovuo‐Saloranta A, Forss H, Walsh T, Nordblad A, Mäkelä M, Worthington HV. Pit and fissure sealants for preventing dental decay in permanent teeth. Cochrane Database Syst Rev. 2017(7).

5.Slayton RL, Urquhart O, Araujo MWB, et al. Evidence-based clinical practice guideline on nonrestorative treatments for carious lesions: A report from the American Dental Association. J Am Dent Assoc. 2018;149(10):837-849.e819. PubMed

6.Seirawan H, Faust S, Mulligan R. The impact of oral health on the academic performance of disadvantaged children. Am J Public Health. 2012;102(9):1729-1734. PubMed

7.Agree Next Steps C. The AGREE II Instrument. Hamilton (ON): AGREE Enterprise; 2017: https://www.agreetrust.org/wp-content/uploads/2017/12/AGREE-II-Users-Manual-and-23-item-Instrument-2009-Update-2017.pdf. Accessed 2023 Feb 7.

8.Prevention and management of dental caries in children: dental clinical guidance. Dundee (UK): Scottish Dental Clinical Effectiveness Programm; 2018: https://www.sdcep.org.uk/media/2zbkrdkg/sdcep-prevention-and-management-of-dental-caries-in-children-2nd-edition.pdf. Accessed 2023 Jan 19.

9.Splieth CH, Banerjee A, Bottenberg P, et al. How to Intervene in the Caries Process in Children: A Joint ORCA and EFCD Expert Delphi Consensus Statement. Caries Res. 2020;54(4):297-305. PubMed

10.Liberati A, Altman DG, Tetzlaff J, et al. The PRISMA statement for reporting systematic reviews and meta-analyses of studies that evaluate health care interventions: explanation and elaboration. J Clin Epidemiol. 2009;62(10):e1-e34. PubMed

Appendix 1: Selection of Included Studies

Figure 1: Selection of Included Studies

Of the 77 citations identified, 70 were excluded, while 7 electronic literature and 8 grey literature potentially relevant full-text reports were retrieved for scrutiny. In total 3 reports are included in the review.

Appendix 2: Characteristics of Included Publications

Table 2: Characteristics of Included Guidelines

Intended users, target population

Intervention and practice considered

Major outcomes considered

Evidence collection, selection, and synthesis

Evidence quality assessment

Recommendations development and evaluation

Guideline validation

Splieth et al. (2020)9

Intended users:

Dentists

Target population:

Children

Interventions for caries management in children, specifically regarding early childhood caries, caries in primary molars, and occlusal caries in the permanent teeth of children and adolescents.

Relevant intervention: Sealants as a microinvasive treatment for the prevention of caries or to arrest noncavitated caries.

Caries in primary molars, occlusal caries in the permanent dentition of children and adolescents, success rate of treatment, pain.

Authors obtained evidence from 3 systematic reviews on numerous aspects of caries in children and adolescents. Additional literature was also included via nonsystematic search.

The strength of each recommendation was evaluated by the group and categorized as strong, moderate, or weak. The quality of evidence was not reported. The strength was defined as follows:

Strong: recommendations supported by unequivocal evidence (e.g., many RCTs).

Moderate: recommendations based on moderate evidence (e.g., high-quality clinical studies, such as RCTs with similar results).

Weak: recommendations based on expert opinion only and/or those based on weak evidence (e.g., no clinical studies, only low-quality studies, studies with contradicting results).

A consensus group made up of experts in relevant fields developed the recommendation statements using a Delphi process. The strength of each recommendation was assessed by each consensus group member. Members voted on each statement, grading their agreement with the statement on a scale of 1 to 10. Statements were accepted if they achieved at least 70% of the vote over an agreement score of 7.

NR.

ADA (2018)5

Intended users:

General and pediatric dental practitioners and their support teams, public health dentists, dental hygienist, and community oral health coordinators, policy-makers

Target population:

Adults and children

Nonrestorative treatments or interventions to arrest or reverse noncavitated and cavitated carious lesions.

Relevant intervention: Dental sealants.

Arrest or reversal of noncavitated and cavitated carious lesions, nausea, fluorosis, vomiting, allergic reactions, staining, tooth sensitivity, soft-tissue trauma, progression of symptoms, pulpal health, lack of retention (for sealants), premature loss or extraction, and secondary caries.

Authors collected evidence using a systematic search of the literature to identify RCTs.

Evidence quality was assessed using the GRADE approach, where certainty (quality) was classified as high, moderate, low, or very low.

Strength of recommendation was classified as either strong or conditional.

An expert panel formulated recommendation statements based on the consideration of at least 4 factors: balance between benefits and harms, certainty in the evidence, patient values and preferences, and resource used. This was in accordance with the GRADE framework.

Panellists discussed the evidence to form a consensus. An inability to reach agreement was resolved by vote.

Internal and external stakeholders, including several dentistry association and organizations, engaged in the guideline development process. Stakeholders initially provided feedback on the scope, purpose, target audience, and subsequently provided feedback on the recommendation statements.

The general public was also given the opportunity to provide feedback.

SDCEP (2018)8

Intended users:

All members of the primary care dental team (e.g., trainees, dentists, dental hygienists, dental therapists, dental nurses, dental health support workers, oral health educators, dental educationalists).

Target population:

Children from birth to 16 years of age

A wide range of interventions for the prevention and management of dental caries including assessment, dental care management, delivery of preventive care, options for caries management, delivery of restorative care, referral, and management of suspected dental neglect.

Relevant intervention: fissure sealants for caries prevention.

Relevant outcome:

Prevention of dental caries.

Guideline development group members obtained evidence using a systematic search of the literature to identify systematic reviews or clinical practice guidelines.

Guideline development group members also used systematic review that were included in the development of another clinical practice guideline to help inform recommendations related to the prevention of dental caries.

Evidence quality of included systematic reviews was assessed using the AMSTAR checklist.

Evidence quality of included clinical practice guidelines was assessed using the AGREE II instrument.

The guideline development group members received evidence summaries to inform recommendations. The group used best practices and expert opinion to reach consensus when well-founded evidence was not available.

Factors considered when developing recommendations included: quality, consistency, generalizability, and applicability of evidence. Additionally, group members also considered the balance of risks and benefits, values and preferences of patients, and limitations and inconveniences of the treatment.

A draft of the guidelines was posted for open consultation for 12 weeks. Individuals and organizations with an interest in this topic were notified about the opportunity to provide feedback. Targeted external peer review of this guideline also took place. Feedback was reviewed and incorporated as appropriate.

ADA = American Dental Association; AGREE II = Appraisal of Guidelines for Research and Evaluation II; AMSTAR = A Measurement Tool to Assess Systematic Reviews; GRADE = Grading of Recommendation Assessment, Development and Evaluation; NR = not reported; RCT = randomized controlled trial; SDCEP = Scottish Dental Clinical Effectiveness Program.

Note that this table has not been copy-edited.

Appendix 3: Critical Appraisal of Included Publications

Note that this appendix has not been copy-edited.

Table 3: Strengths and Limitations of Guidelines Using AGREE II7

Item

Splieth et al. (2020)9

ADA (2018)5

SDCEP (2018)8

Domain 1: Scope and purpose

1. The overall objective(s) of the guideline is (are) specifically described.

Yes

Yes

Yes

2. The health question(s) covered by the guideline is (are) specifically described.

Yes

Yes

Yes

3. The population (patients, public, etc.) to whom the guideline is meant to apply is specifically described.

Yes

Yes

Yes

Domain 2: Stakeholder involvement

4. The guideline development group includes individuals from all relevant professional groups.

Yes

Yes

Yes

5. The views and preferences of the target population (patients, public, etc.) have been sought.

No

Yes

Yes

6. The target users of the guideline are clearly defined.

Yes

Yes

Yes

Domain 3: Rigour of development

7. Systematic methods were used to search for evidence.

Yes

Yes (found in associated SR)

Yes

8. The criteria for selecting the evidence are clearly described.

Partially (some information can be found in the health issue questions)

Yes (found in associated SR)

Yes

9. The strengths and limitations of the body of evidence are clearly described.

Partially
(type of evidence and consistency of evidence is considered)

Yes

Yes

10. The methods for formulating the recommendations are clearly described.

Yes

Yes

Yes

11. The health benefits, side effects, and risks have been considered in formulating the recommendations.

Unclear

Yes

Yes

12. There is an explicit link between the recommendations and the supporting evidence.

Partially

Yes

Yes

13. The guideline has been externally reviewed by experts before its publication.

NR

Yes

Yes

14. A procedure for updating the guideline is provided.

No

Yes

Yes

Domain 4: Clarity of presentation

15. The recommendations are specific and unambiguous.

Yes

Yes

Yes

16. The different options for management of the condition or health issue are clearly presented.

Yes

Yes

Yes

17. Key recommendations are easily identifiable.

Yes

Yes

Yes

Domain 5: Applicability

18. The guideline describes facilitators and barriers to its application.

No

Unclear

Unclear

19. The guideline provides advice and/or tools on how the recommendations can be put into practice.

No

Partially

Yes

20. The potential resource implications of applying the recommendations have been considered.

No

Partially

No

21. The guideline presents monitoring and/or auditing criteria.

No

No

No

Domain 6: Editorial independence

22. The views of the funding body have not influenced the content of the guideline.

Yes

Yes

Yes

23. Competing interests of guideline development group members have been recorded and addressed.

Yes

Yes

Yes

ADA = American Dental Association; AGREE II = Appraisal of Guidelines for Research and Evaluation II; NR = not reported; SDCEP = Scottish Dental Clinical Effectiveness Program; SR = systematic review.

Appendix 4: Main Study Findings

Note that this appendix has not been copy-edited.

Table 4: Summary of Recommendations in Included Guidelines

Recommendations and supporting evidence

Quality of evidence and strength of recommendations

Splieth et al. (2020)9

“Due to their high costs, preventive sealants are especially recommended for teeth, individuals, groups, or populations with higher caries risk, activity or prevalence (p. 303).”9

Supporting evidence: 3 SRs, 1 cost-effectiveness study, and 1 evidence-based clinical practice guideline.

Strength of recommendation: moderate

Quality of evidence: NR

“Preventive sealants should be placed with low viscosity resin composites. For problems with moisture control, [glass ionomer compound] can be used (p. 303).”9

Supporting evidence: unclear.

Strength of recommendation: weak

Quality of evidence: NR

“Noncavitated occlusal caries lesions should be sealed if these cannot be inactivated with noninvasive care (p. 303).”9

Supporting evidence: 1 NMA,1 SR with NMA, 1 evidence-based clinical practice guideline.

Strength of recommendation: weak

Quality of evidence: NR

“Occlusal cavitated lesions should be restored with a filling, preferably defect-orientated composite after carious tissue removal, possibly followed by sealing the remaining fissures according to the caries risk. The traditional preparation “with the extension for prevention” involving the whole fissure system is not advised. In case of deep carious lesions, selective carious tissue removal and a well-sealed restoration should be applied (p. 303).”9

Supporting evidence: 1 NMA.

Strength or recommendation: weak

Quality of evidence: NR

ADA (2018)5

“To arrest or reverse noncavitated carious lesions on occlusal surfaces of primary teeth, the expert panel recommends clinicians prioritize the use of sealants plus 5% NaF varnish (application every 3-6 months) or sealants alone over 5% NaF varnish alone (application every 3-6 months), 1.23% APF gel (application every 3-6 months), resin infiltration plus 5% NaF varnish (application every 3-6 months), or 0.2% NaF mouthrinse (once per week) (p. 841).”5

Supporting evidence: 8 studies including 726 participants.

Strong recommendation based on moderate certainty evidence

“To arrest or reverse noncavitated carious lesions on occlusal surfaces of permanent teeth, the expert panel recommends clinicians prioritize the use of sealants plus 5% NaF varnish (application every 3-6 months) or sealants alone over 5% NaF varnish alone (application every 3-6 months), 1.23% APF gel (application every 3-6 months), or 0.2% NaF mouthrinse (once per week) (p. 841).”5

Supporting evidence: 8 studies including 726 participants.

Strong recommendation based on moderate certainty evidence

“To arrest or reverse noncavitated carious lesions on approximal surfaces of primary and permanent teeth, the expert panel suggests clinicians use 5% NaF varnish (application every 3-6 months), resin infiltration alone, resin infiltration plus 5% NaF varnish (application every 3-6 months), or sealants alone (p. 842).”5

Supporting evidence: 13 studies including 2,516 participants.

Conditional recommendation based on low to very low certainty evidence

SDCEP (2018)8

“For all children, place fissure sealants on the permanent molars as early as possible after eruption (p. 52).”8

Supporting evidence: the recommendation was adapted from a previously developed evidence-based guideline by SIGN.

Note: Elaborative comments about standard caries prevention for all children, and enhanced caries prevention for children at increased risk of caries are also available on p. 52.

Strong recommendation based on moderate quality evidence

ADA = American Dental Association; APF = acidulated phosphate fluoride; NaF = sodium fluoride; NMA = network meta-analysis; NR = not reported; SDCEP = Scottish Dental Clinical Effectiveness Program; SIGN = Scottish Intercollegiate Guidelines Network; SR = systematic review.

Appendix 5: References of Potential Interest

Previous CADTH Reports

Fluoride Varnish for the Prevention and Management of Dental Issues. Ottawa (ON): CADTH. 2022. https://www.cadth.ca/fluoride-varnish-prevention-and-management-dental-issues Accessed 2023 Feb 7.

Silver Diamine Fluoride and Fluoride Varnish for the Prevention and Arresting of Dental Caries in Pediatric Populations: Clinical Effectiveness and Guidelines. Ottawa (ON): CADTH. 2020. https://www.cadth.ca/silver-diamine-fluoride-and-fluoride-varnish-prevention-and-arresting-dental-caries-pediatric Accessed 2023 Feb 7.

Guidelines and Recommendations

Best Practices Summary; Unclear Methodology

American Academy of Pediatric Dentistry. Adolescent oral health care. The Reference Manual of Pediatric Dentistry. Chicago, Ill.: American Academy of Pediatric Dentistry; 2022:282-91.

American Academy of Pediatric Dentistry. Caries-risk assessment and management for infants, children, and adolescents. In: The Reference Manual of Pediatric Dentistry. Chicago (IL): American Academy of Pediatric Dentistry; 2022:266-72.

American Academy of Pediatric Dentistry. Periodicity of examination, preventive dental services, anticipatory guidance/ counseling, and oral treatment for infants, children, and adolescents. In: The Reference Manual of Pediatric Dentistry. Chicago (IL): American Academy of Pediatric Dentistry; 2022:253-65.

Alternative Population – Children Under 5 Years of Age

Holve S, Braun P, Irvine JD, et al. Early childhood caries in Indigenous communities. Paediatr Child Health. 2021;26(4):255-256. PubMed