Cold Sores (Herpes Labialis): What You Need to Know in Dental Practice

Herpes labialis, commonly known as cold sores, is a highly prevalent viral infection affecting the perioral region. It is caused primarily by Herpes Simplex Virus type 1 (HSV-1) and represents a frequent finding in dental practice.

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Due to its recurrent nature, contagious potential, and clinical similarity to other oral lesions, accurate diagnosis and appropriate management are essential for both patient care and infection control.

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This article reviews the etiology, clinical signs, symptoms, updated treatment options, and differential diagnosis of herpes labialis, with a focus on relevance for dental professionals.

✅ Etiology
Herpes labialis is caused by Herpes Simplex Virus type 1 (HSV-1), an enveloped double-stranded DNA virus from the Herpesviridae family. Primary infection usually occurs during childhood through direct contact with infected saliva or lesions.
After initial infection, the virus establishes latency in the trigeminal ganglion, where it remains dormant. Reactivation may occur due to several triggers, including:

▪️ Emotional or physical stress
▪️ Fever or systemic illness
▪️ Ultraviolet light exposure
▪️ Immunosuppression
▪️ Hormonal changes

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✅ Clinical Signs and Symptoms
Herpes labialis typically follows a predictable clinical course:

Prodromal Phase
▪️ Tingling, burning, or itching sensation
▪️ Mild erythema at the affected site

Vesicular Phase
▪️ Formation of clusters of small, fluid-filled vesicles
▪️ Lesions are usually painful and located on the vermilion border

Ulcerative and Crusting Phase
▪️ Vesicle rupture leading to shallow ulcers
▪️ Formation of a yellow-brown crust
▪️ Healing without scarring in immunocompetent patients
Systemic symptoms such as fever or lymphadenopathy may occur during primary infection but are uncommon in recurrent episodes.

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✅ Diagnosis
The diagnosis of herpes labialis is primarily clinical, based on lesion appearance and patient history. Laboratory tests are reserved for atypical or severe cases.

Diagnostic methods include:
▪️ Viral culture (limited sensitivity)
▪️ Polymerase chain reaction (PCR)
▪️ Direct fluorescent antibody testing
▪️ Serological testing (limited clinical utility)

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✅ Updated Treatment Options
There is no cure for HSV infection; therefore, treatment focuses on reducing symptom severity, lesion duration, and viral shedding.

Topical Antiviral Therapy
▪️ Acyclovir 5% cream
▪️ Penciclovir 1% cream
Most effective when applied during the prodromal phase.

Systemic Antiviral Therapy
▪️ Acyclovir
▪️ Valacyclovir
▪️ Famciclovir
Systemic therapy is indicated for:
▪️ Severe or frequent recurrences
▪️ Immunocompromised patients
▪️ Extensive lesions

Adjunctive Measures
▪️ Analgesics for pain control
▪️ Sun protection to prevent recurrence
▪️ Avoidance of lesion manipulation

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✅ Differential Diagnosis
Herpes labialis must be differentiated from other perioral and oral conditions with similar clinical appearance.

📊 Comparative Table: Differential Diagnosis of Herpes Labialis

Condition	Key Clinical Features	Diagnostic Considerations
Herpes labialis	Grouped vesicles, prodromal symptoms, recurrent pattern	Clinical diagnosis, PCR if atypical
Angular cheilitis	Erythema and fissuring at lip commissures	Often associated with Candida or bacterial infection
Aphthous ulcer	Painful ulcer without vesicular stage	Occurs on non-keratinized mucosa
Impetigo	Honey-colored crusts, common in children	Bacterial etiology, highly contagious

💬 Discussion
Herpes labialis remains a common and clinically significant condition in dentistry due to its high prevalence and risk of cross-infection. Dental professionals must recognize active lesions and postpone elective procedures when necessary. Advances in antiviral therapy have improved symptom control, but early intervention remains critical for optimal outcomes.

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🎯 Clinical Recommendations
▪️ Identify prodromal symptoms to initiate early treatment
▪️ Avoid elective dental procedures during active outbreaks
▪️ Educate patients about triggers and recurrence prevention
▪️ Use appropriate infection control measures in clinical settings
▪️ Consider systemic antiviral therapy for high-risk patients

✍️ Conclusion
Herpes labialis is a recurrent viral condition with important implications in dental practice. Accurate diagnosis, patient education, and timely antiviral therapy are essential to minimize discomfort, prevent transmission, and ensure safe dental care. A structured clinical approach allows effective management while maintaining professional and ethical standards.

📚 References

✔ Arduino, P. G., & Porter, S. R. (2008). Herpes simplex virus type 1 infection: Overview on relevant clinico-pathological features. Journal of Oral Pathology & Medicine, 37(2), 107–121. https://doi.org/10.1111/j.1600-0714.2007.00586.x
✔ Fatahzadeh, M., & Schwartz, R. A. (2007). Human herpes simplex virus infections: Epidemiology, pathogenesis, symptomatology, diagnosis, and management. Journal of the American Academy of Dermatology, 57(5), 737–763. https://doi.org/10.1016/j.jaad.2007.06.027
✔ Spruance, S. L., & Kriesel, J. D. (2002). Treatment of herpes simplex labialis. Herpes, 9(3), 64–69.
✔ UpToDate. (2024). Treatment and prevention of herpes simplex virus type 1 in immunocompetent adults. Wolters Kluwer.

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Common Complications After Pediatric Tooth Extraction and Management Strategies

Tooth extraction in pediatric patients is a frequent procedure in dental practice, indicated for severe caries, orthodontic reasons, trauma, or infection. Although generally safe, post-extraction complications in children may occur due to anatomical, behavioral, and physiological factors unique to this population. Early identification and appropriate management are essential to prevent morbidity, discomfort, and long-term sequelae.

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This article provides a comprehensive overview of the most common complications after pediatric tooth extraction, their etiology, clinical presentation, and evidence-supported management strategies.

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✅ Common Complications After Pediatric Tooth Extraction

1. Postoperative Pain and Inflammation
Mild to moderate pain is expected after extraction; however, excessive pain may indicate trauma, infection, or improper clot formation.
Clinical characteristics include localized discomfort, swelling, and tenderness around the extraction site.
➤ Management strategies:
▪️ Weight-adjusted analgesics such as acetaminophen or ibuprofen
▪️ Cold compresses during the first 24 hours
▪️ Gentle oral hygiene instructions

2. Post-Extraction Bleeding
Children are more prone to bleeding due to limited compliance and disruption of the blood clot.
Risk factors include traumatic extraction, coagulation disorders, and premature manipulation of the socket.
➤ Management strategies:
▪️ Firm pressure with sterile gauze for 20–30 minutes
▪️ Use of hemostatic agents when indicated
▪️ Assessment of medical history for bleeding disorders

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3. Alveolar Osteitis (Dry Socket)
Although less common in children than adults, alveolar osteitis may occur, particularly after extraction of permanent molars.
Clinical signs include severe pain, exposed bone, and foul odor appearing 2–4 days post-extraction.
➤ Management strategies:
▪️ Gentle socket irrigation with saline
▪️ Placement of medicated dressings
▪️ Analgesic therapy and close follow-up

4. Infection
Post-extraction infection may arise from poor oral hygiene or pre-existing pathology.
Clinical presentation includes swelling, erythema, purulent discharge, and fever.
➤ Management strategies:
▪️ Local drainage if necessary
▪️ Systemic antibiotics only when clinically justified
▪️ Reinforcement of oral hygiene measures

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5. Soft Tissue Trauma
Lip, cheek, or tongue injuries may occur due to prolonged anesthesia or accidental biting.
➤ Management strategies:
▪️ Parent and patient education regarding anesthesia effects
▪️ Use of protective cotton rolls
▪️ Topical agents for ulcer healing

6. Damage to the Permanent Tooth Germ
Improper extraction of primary teeth can affect the developing permanent successor.
Clinical implications include enamel hypoplasia, delayed eruption, or ectopic positioning.
➤ Management strategies:
▪️ Atraumatic extraction techniques
▪️ Radiographic assessment before complex extractions
▪️ Long-term monitoring of eruption patterns

💬 Discussion
The incidence of complications following pediatric tooth extraction is influenced by operator skill, patient cooperation, systemic health, and postoperative care. Compared to adults, children demonstrate faster healing but higher behavioral risks that may compromise clot stability and wound protection. Preventive strategies, including minimally invasive techniques and effective communication with caregivers, significantly reduce complication rates.

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🎯 Clinical Recommendations
▪️ Perform thorough preoperative assessment, including medical history and radiographic evaluation
▪️ Use atraumatic extraction techniques whenever possible
▪️ Provide clear postoperative instructions to caregivers
▪️ Schedule follow-up visits for high-risk cases
▪️ Avoid unnecessary antibiotic prescription

✍️ Conclusion
Post-extraction complications in pediatric dentistry are generally preventable with proper planning, technique, and postoperative care. Early recognition and evidence-based management ensure optimal healing, minimize discomfort, and protect developing permanent dentition. A systematic and child-centered approach remains the cornerstone of safe pediatric dental extractions.

📚 References

✔ American Academy of Pediatric Dentistry. (2023). Guideline on management of the developing dentition and occlusion. Pediatric Dentistry, 45(6), 327–339.
✔ Andreasen, J. O., & Andreasen, F. M. (2018). Textbook and color atlas of traumatic injuries to the teeth (5th ed.). Wiley-Blackwell.
✔ Ingle, J. I., Bakland, L. K., & Baumgartner, J. C. (2019). Ingle’s endodontics (7th ed.). PMPH USA.
✔ Malamed, S. F. (2020). Medical emergencies in the dental office (8th ed.). Elsevier.
✔ McDonald, R. E., Avery, D. R., & Dean, J. A. (2021). Dentistry for the child and adolescent (11th ed.). Elsevier.

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Atraumatic vs. Conventional Extraction Techniques in Children: A Clinical and Practical Overview

Dental extractions in children represent a common yet challenging procedure in pediatric dentistry. The choice between atraumatic extraction techniques and conventional forceps-based methods can significantly influence postoperative outcomes, patient behavior, and long-term oral health.

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✅ Introduction
Tooth extraction in children is often required due to advanced caries, trauma, orthodontic indications, or pathological conditions. Conventional extraction techniques rely on forceps and elevators, frequently associated with increased discomfort, soft tissue trauma, and negative behavioral responses. In contrast, atraumatic extraction techniques aim to preserve surrounding tissues, reduce pain perception, and improve cooperation, aligning with the principles of minimally invasive pediatric dentistry.

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✅ Atraumatic Extraction Techniques in Pediatric Dentistry
Atraumatic dental extraction refers to methods that minimize damage to alveolar bone, periodontal tissues, and adjacent structures. These techniques may include:

▪️ Periotomes and luxators with controlled force
▪️ Sectioning of multirooted teeth
▪️ Gradual periodontal ligament disruption
▪️ Reduced reliance on excessive force
The biological rationale focuses on tissue preservation, faster healing, and improved patient experience.

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✅ Conventional Extraction Techniques
Conventional techniques involve the use of elevators and forceps with rotational and traction movements. While effective and time-efficient, these methods may result in:

▪️ Increased alveolar bone trauma
▪️ Higher postoperative pain and swelling
▪️ Greater anxiety and negative dental experiences
Despite these limitations, conventional extraction remains widely used due to operator familiarity and reduced chair time.

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✅ Comparison of Clinical Outcomes
Scientific evidence suggests that atraumatic extraction techniques are associated with:

▪️ Lower postoperative pain levels
▪️ Reduced soft tissue injury
▪️ Improved healing of the extraction socket
▪️ Better behavioral outcomes in pediatric patients
However, these techniques may require greater operator skill and longer procedural time compared to conventional methods.

📊 Comparative Table: Common Causes of Dental Extraction in Children

Cause of Extraction	Clinical Description	Relevant Considerations
Advanced dental caries	Extensive structural destruction with pulpal involvement	Often associated with pain and infection
Dental trauma	Non-restorable fractures or avulsed primary teeth	Consider impact on permanent successors
Orthodontic indications	Planned removal to manage crowding or eruption sequence	Requires interdisciplinary planning
Pathological conditions	Cysts, abscesses, or severe periodontal involvement	Radiographic evaluation is essential
Retention of primary teeth	Delayed exfoliation interfering with eruption	Assess root resorption status

💬 Discussion
The selection of extraction technique should be guided by clinical complexity, child behavior, root morphology, and practitioner expertise. While conventional extraction remains appropriate in certain scenarios, especially in cases requiring rapid intervention, atraumatic approaches provide clear advantages in pain control and tissue preservation. Current evidence supports their use as part of a child-centered, minimally invasive philosophy in pediatric dentistry.

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🎯 Clinical Recommendations
▪️ Prefer atraumatic extraction techniques in anxious or behaviorally challenged children
▪️ Use atraumatic methods when preservation of alveolar bone is critical
▪️ Combine extraction planning with behavior guidance strategies
▪️ Ensure adequate training before routine implementation of atraumatic techniques

✍️ Conclusion
Both atraumatic and conventional extraction techniques are valid in pediatric dentistry; however, atraumatic extraction techniques offer superior biological and behavioral benefits. Their integration into routine clinical practice can enhance patient comfort, promote favorable healing, and contribute to positive long-term dental attitudes in children.

📚 References

✔ Ashley, P. F., Chaudhary, M., & Lourenço-Matharu, L. (2018). Sedation of children undergoing dental treatment. Cochrane Database of Systematic Reviews, 12, CD003877. https://doi.org/10.1002/14651858.CD003877.pub5
✔ Innes, N. P. T., Chu, C. H., Fontana, M., Lo, E. C. M., Thomson, W. M., Uribe, S., Heiland, M., & Schwendicke, F. (2019). A century of change towards prevention and minimal intervention in cariology. Journal of Dental Research, 98(6), 611–617. https://doi.org/10.1177/0022034519837252
✔ McDonald, R. E., Avery, D. R., & Dean, J. A. (2021). Dentistry for the child and adolescent (11th ed.). Elsevier.
✔ Patel, N., Kim, S., & Hodges, S. J. (2017). Minimally invasive techniques in pediatric oral surgery. International Journal of Paediatric Dentistry, 27(6), 483–490. https://doi.org/10.1111/ipd.12289

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Fluorosis vs. Enamel Demineralization: How to Identify Clinical Differences and Choose the Right Treatment

Dental fluorosis and enamel demineralization are common enamel alterations that may present with similar clinical appearances but differ significantly in etiology, progression, and management.

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✅ Introduction
White enamel defects are frequently observed in both pediatric and adult dental patients. Among these, fluorosis and enamel demineralization represent two distinct pathological processes. While fluorosis is a developmental condition linked to excessive fluoride intake during enamel formation, demineralization is an acquired process related to biofilm activity and acid exposure. Misinterpretation may lead to ineffective or unnecessary treatment, highlighting the importance of proper clinical differentiation.

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1. Dental Fluorosis

Etiology
Dental fluorosis results from excessive systemic fluoride ingestion during amelogenesis, typically before the age of eight. The excess fluoride disrupts enamel mineralization, leading to increased porosity.

Clinical Characteristics
▪️ Symmetrical distribution affecting homologous teeth
▪️ Diffuse white opacities, striations, or mottling
▪️ In moderate to severe cases, brown discolorations and surface pitting
▪️ Lesions are present at eruption and do not progress over time

Treatment Options
Management depends on severity:
▪️ Mild fluorosis: No treatment or enamel polishing
▪️ Moderate fluorosis: Resin infiltration or microabrasion
▪️ Severe fluorosis: Composite restorations or porcelain veneers

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2. Enamel Demineralization

Etiology
Enamel demineralization is caused by prolonged exposure to acids produced by cariogenic bacteria. It commonly occurs around orthodontic brackets or in areas of poor oral hygiene.

Clinical Characteristics
▪️ Chalky white spot lesions with well-defined borders
▪️ Typically localized and asymmetrical
▪️ Lesions develop after tooth eruption
▪️ May progress to cavitated carious lesions if untreated

Treatment Options
▪️ Topical fluoride therapy (varnishes, gels)
▪️ Casein phosphopeptide–amorphous calcium phosphate (CPP-ACP)
▪️ Resin infiltration for non-cavitated lesions
▪️ Restorative treatment if cavitation is present

📊 Comparative Table: Fluorosis vs. Enamel Demineralization

Clinical Parameter	Fluorosis	Enamel Demineralization
Time of Onset	During tooth development	After tooth eruption
Lesion Distribution	Symmetrical and generalized	Localized and asymmetrical
Progression	Non-progressive	Progressive if untreated
Primary Management	Esthetic-focused treatment	Remineralization and caries control

💬 Discussion
Although both conditions present as white enamel defects, fluorosis is a developmental and non-progressive condition, whereas demineralization is an active, biofilm-mediated process. The timing of lesion appearance, symmetry, and surface texture are critical diagnostic clues. Adjunctive tools such as quantitative light-induced fluorescence (QLF) may support diagnosis but do not replace thorough clinical examination.

🎯 Clinical Recommendations
▪️ Always assess patient age and fluoride exposure history
▪️ Evaluate lesion symmetry, borders, and location
▪️ Avoid aggressive treatment in mild fluorosis
▪️ Implement early remineralization protocols for demineralization
▪️ Educate patients and caregivers on fluoride use and oral hygiene

✍️ Conclusion
Distinguishing fluorosis from enamel demineralization is essential for accurate diagnosis and appropriate management. Understanding their distinct etiologies and clinical behaviors allows clinicians to deliver targeted, conservative, and effective treatments, improving both functional and esthetic outcomes.

📚 References

✔ Fejerskov, O., Nyvad, B., & Kidd, E. (2015). Dental caries: The disease and its clinical management (3rd ed.). Wiley-Blackwell.
✔ Ismail, A. I., Sohn, W., Tellez, M., Amaya, A., Sen, A., Hasson, H., & Pitts, N. B. (2013). The International Caries Detection and Assessment System (ICDAS). Community Dentistry and Oral Epidemiology, 41(1), e41–e53. https://doi.org/10.1111/cdoe.12006
✔ Pendrys, D. G. (2010). Risk of enamel fluorosis in nonfluoridated and fluoridated communities. Journal of Public Health Dentistry, 70(2), 79–85. https://doi.org/10.1111/j.1752-7325.2010.00164.x
✔ Pretty, I. A. (2006). Caries detection and diagnosis. Dental Clinics of North America, 50(4), 515–527. https://doi.org/10.1016/j.cden.2006.06.003

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Chemomechanical Caries Removal: Advantages Over Conventional Methods in Modern Dentistry

Chemomechanical caries removal (CMCR) is a minimally invasive technique designed to selectively eliminate infected dentin while preserving healthy tooth structure. This approach aligns with contemporary principles of minimally invasive dentistry, offering advantages in patient comfort, tissue preservation, and behavioral management.

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✅ Introduction
Conventional caries removal using rotary instruments has long been considered the standard of care. However, it often involves excessive removal of sound dentin, patient discomfort, and the need for local anesthesia. In contrast, chemomechanical caries removal represents a conservative alternative that targets only infected dentin, reducing unnecessary tissue loss and improving patient acceptance, particularly in pediatric, geriatric, and anxious populations.

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✅ What Is Chemomechanical Caries Removal?
Chemomechanical caries removal is a technique that uses chemical agents to soften infected dentin, allowing its removal with hand instruments while preserving affected but remineralizable dentin.

Mechanism of Action
CMCR agents act by:
▪️ Degrading denatured collagen fibers in infected dentin
▪️ Preserving healthy and affected dentin
▪️ Reducing bacterial load without mechanical trauma
The selectivity of these agents is based on the biochemical differences between infected and healthy dentin.

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✅ Commercial Products Used in CMCR
Several products are currently available and supported by clinical research:

▪️ Carisolv® (MediTeam, Sweden): Sodium hypochlorite combined with amino acids
▪️ Papacárie Duo® (Formula & Ação, Brazil): Papain-based gel with chloramine
▪️ Brix 3000® (Brix Medical Science, Argentina): High-concentration papain enzyme
These products vary in composition but share a common goal: selective removal of infected dentin.

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✅ Advantages Over Conventional Caries Removal
Compared to rotary instrumentation, CMCR offers:

▪️ Selective dentin removal, preserving tooth vitality
▪️ Reduced need for local anesthesia
▪️ Lower anxiety and discomfort for patients
▪️ Improved behavior management in children
▪️ Reduced risk of pulp exposure

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✅ Clinical Indications
CMCR is especially recommended in:

▪️ Pediatric dentistry
▪️ Deep carious lesions near the pulp
▪️ Patients with dental anxiety or special healthcare needs
▪️ Geriatric patients with root caries

📊 Comparative Table: Step-by-Step Chemomechanical Caries Removal

Clinical Step	Purpose	Clinical Considerations
Isolation of the tooth	Prevent contamination and improve visibility	Rubber dam recommended but not mandatory
Application of CMCR gel	Soften infected dentin chemically	Follow manufacturer’s recommended time
Mechanical removal with hand instruments	Remove softened infected dentin	Avoid excessive pressure
Reapplication if needed	Ensure complete removal of infected tissue	Multiple cycles may be required
Cavity assessment	Confirm hard, sound dentin	Use tactile and visual criteria
Definitive restoration	Seal and restore tooth function	Adhesive materials are preferred

💬 Discussion
While CMCR may require more clinical time than traditional drilling, its benefits in tissue preservation and patient-centered care outweigh this limitation in selected cases. Studies demonstrate comparable clinical outcomes between CMCR and conventional methods regarding restoration longevity and caries control. Importantly, CMCR supports the paradigm shift toward biological caries management rather than purely mechanical intervention.

🎯 Clinical Recommendations
▪️ Use CMCR in deep or high-risk lesions to minimize pulp damage
▪️ Combine CMCR with adhesive restorative materials
▪️ Educate patients and caregivers about the benefits of minimally invasive approaches
▪️ Do not replace rotary instruments entirely; use CMCR as a complementary technique

✍️ Conclusion
Chemomechanical caries removal is a scientifically supported, minimally invasive alternative to conventional caries excavation. Its selective action, improved patient comfort, and preservation of healthy dentin make it a valuable tool in modern restorative dentistry, particularly for vulnerable patient populations.

📚 References

✔ Banerjee, A., Watson, T. F., & Kidd, E. A. M. (2000). Dentine caries excavation: A review of current clinical techniques. British Dental Journal, 188(9), 476–482. https://doi.org/10.1038/sj.bdj.4800515
✔ Bussadori, S. K., Castro, L. C., & Galvão, A. C. (2005). Papain gel: A new chemomechanical caries removal agent. Journal of Clinical Pediatric Dentistry, 30(2), 115–119.
✔ Ericson, D., Zimmerman, M., Raber, H., Gotrick, B., & Bornstein, R. (1999). Clinical evaluation of efficacy and safety of a new method for chemomechanical removal of caries. Caries Research, 33(3), 171–177. https://doi.org/10.1159/000016517
✔ Schwendicke, F., Frencken, J. E., Innes, N., & Meyer-Lueckel, H. (2016). Managing carious lesions: Consensus recommendations on carious tissue removal. Advances in Dental Research, 28(2), 58–67. https://doi.org/10.1177/0022034516639271

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