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Dental Health Essentials: Caries, Oral Pathology, and Treatments

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Prevention of Tooth Decay

  • Fluoride and Fissure Sealants: Application of fluoride and sealing of fissures.
  • Dietary Control: Reduce sugar intake, maintain a balanced diet, limit snacking between meals.
  • Plaque Control: Implement effective oral hygiene practices (brushing, flossing), regular plaque removal.

Classification of Dental Caries Cavities

Based on G.V. Black's classification:

  • Class I: Occlusal cavities on premolars and molars.
  • Class II: Interproximal cavities on molars, often extending to occlusal, distal, mesial, or complex surfaces (e.g., occlusomesial, occlusodistal, mesio-occluso-distal).
  • Class III: Interproximal cavities on incisors and canines, not involving the incisal angle.
  • Class IV: Interproximal cavities on incisors and canines, involving the incisal angle.
  • Class V: Cavities on the gingival third of facial or lingual smooth surfaces of any tooth.

Dental Instruments: Rotational Features

  • High-Speed Handpiece (Turbine):
    • Speed: Approximately 100,000 RPM.
    • Use: Abrading or piercing very hard materials and dentin.
  • Low-Speed Handpiece (Contra-Angle):
    • Speed: Approximately 40,000 RPM.
    • Use: Primarily for dentin removal.
  • Adapter: Connects various attachments to both high-speed and low-speed handpieces.
  • Burs and Polishing Instruments: Used for shaping, finishing, and polishing dental restorations.

Fluoride Application Methods

Systemic Fluoride

  • Water fluoridation
  • Fluoride drops
  • Fluoride tablets

Topical Fluoride

Professional Application

  • Gels
  • Varnishes

Self-Application

  • Fluoride toothpaste
  • Fluoride mouthwash (weekly or daily)

Procedure for Professional Gel Application

Materials: Fluoride gel, dental floss, rotational instruments, suction, fluoride tray.

Procedure:

  1. Prepare the patient and the operatory.
  2. Clean teeth thoroughly using a low-speed brush and dental floss.
  3. Apply fluoride gel to the gel tray.
  4. Place the tray in the patient's mouth, ensuring proper contact with all tooth surfaces.
  5. Instruct the patient to keep the tray in place for approximately 4 minutes.
  6. After removal, clean any excess gel with gauze.
  7. Instruct the patient not to eat or drink for at least 1 hour post-application.

Management of High Caries Risk Patients

Definition: Patients with 4 or more active carious lesions, or 4 or more affected tooth surfaces, or 4 or more smooth surface lesions.

Treatment Strategy:

  • Dietary Control: Strict control of sugar intake.
  • Medication Review: Assess and adjust medications that may contribute to dry mouth or caries risk.
  • Fluoride Boosters: Regular professional fluoride applications.
  • Professional Cleanings: Two professional cleanings and fluoride applications per year.
  • Daily Oral Hygiene:
    • Brush teeth after each meal.
    • Use chlorhexidine rinse twice daily (if prescribed).
    • Regular dental flossing.

Oral Lesions and Pathologies

White Lesions

  • Candidiasis: Fungal infection manifesting as white patches.
  • Other Causes: Color changes, ill-defined areas without mucosal elevation, material accumulation, chemical exposure, natural pigmentation.

Salivary Gland Pathologies

  • Sialolithiasis: Formation of salivary stones.
  • Sialadenitis: Inflammation of salivary glands.
  • Salivary Gland Tumors: Benign or malignant growths.

Common Symptoms: Xerostomia (dry mouth), cyst formation, infections (e.g., phlegmon).

Treatment: May include artificial saliva for xerostomia, or specific interventions for stones, inflammation, or tumors.

Dental Caries Progression and Complications

Pulpitis: Inflammation of the dental pulp, often caused by deep caries.

Progression: If untreated, infection can spread through the root canal system to the periapical bone, leading to:

  • Apical Periodontitis: Inflammation and pain around the tooth root apex.
  • Bone Destruction: Localized destruction of alveolar bone.
  • Periodontal Abscess: Pus collection in the periodontal tissues.

These conditions can lead to significant tissue damage and, in severe cases, spread to surrounding fascial spaces (phlegmon).

Phlegmon and Oral Cancer

  • Phlegmon: A diffuse, spreading inflammation of connective tissue, often bacterial.
  • Oral Cancer: Abnormal and uncontrolled tissue growth.
    • Benign Tumors: Non-cancerous, typically not life-threatening, do not spread.
    • Malignant Tumors: Cancerous, can invade surrounding tissues (e.g., epithelium) and metastasize.
    • Approximately 3-5% of oral tumors are malignant.

Tooth Extraction and Dental Implants

Tooth Extraction

Techniques:

  • Luxation: Loosening the tooth from its socket.
  • Forceps Extraction: Using dental forceps to remove the tooth.
  • Curettage: Scraping the socket to remove infected tissue.
  • Surgical Extraction: Required for impacted, fractured, or severely destroyed teeth, often involving bone removal or sectioning the tooth.

Dental Implants

Utilization:

  • Osteotomy: The initial surgical step involving preparation of the bone site.
  • Material: Typically made of titanium due to its strength and biocompatibility.
  • Integration: Designed to integrate with the jawbone, providing a stable foundation for prosthetic teeth.

Patient Selection for Implants

A comprehensive assessment is crucial:

  • Clinical History: Detailed medical and dental history.
  • Oral Hygiene Assessment: Evaluation of current oral hygiene practices.
  • Clinical Analysis: Intraoral and extraoral examination.
  • Additional Tests:
    • Analysis of bone density and quality.
    • Assessment of mineral status.
    • Hematological status (blood tests).
    • Radiographic imaging (e.g., X-rays, CBCT) of the patient's jaw.

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