Dental Charting and Treatment Planning

The FDI (Fédération Dentaire Internationale) system is the international standard: permanent teeth are numbered 1–32 (right-upper: 11–18, left-upper: 21–28, left-lower: 31–38, right-lower: 41–48); primary (baby) teeth are numbered 51–85 in the same quadrant pattern. Each tooth number is unique, so there is no ambiguity. For example, tooth #6 is the right-upper first molar. Alternative systems (the American or Universal system) number upper right 1–8, upper left 9–16, lower left 17–24, lower right 25–32, or assign unique numbers 1–32 by quadrant. Most modern practices use FDI because it is recognized worldwide and by dental schools. Accurate tooth numbering is critical for documentation, radiograph labeling, prescriptions, and referrals. A mistake (charting the wrong tooth) can lead to treatment of the wrong tooth and malpractice. Always verify the tooth number before treating.

Probing depth (PD) is the distance in millimeters from the gumline to the bottom of the periodontal pocket when a probe is gently inserted; it indicates the severity of periodontitis. Healthy gums: PD 1–3 mm, no bleeding. Gingivitis: PD up to 3 mm, but bleeding on probe (BOP). Periodontitis: PD ≥4 mm (often 5–12 mm in advanced disease), with bleeding and possible bone loss on radiograph. A PD of ≥5 mm suggests bone loss and indicates the need for scaling and root planing (SRP) or referral to a periodontist. Bleeding on probe is a sign of active inflammation and is more specific for periodontitis than PD alone; a patient with PD 4 mm but no bleeding may have stable disease, while a patient with PD 3 mm and BOP has active gingivitis that needs intervention (improved home care, frequent cleanings). Tooth mobility (measured 0–3, with 0 being no mobility and 3 being loose with minimal touch) indicates bone loss or trauma; mobility >1 suggests advanced periodontitis or trauma and may indicate the tooth is approaching a hopeless prognosis. These three measures (PD, BOP, mobility) are charted at every visit, trended over time, and used to guide treatment (extraction, SRP, surgical referral) and assess outcomes (did SRP reduce PD?). Accurate probing technique is critical: probe gently (not ramming the probe), probe all six sites per tooth, and chart consistently so comparisons over time are valid.

Caries risk assessment determines whether a patient is at low, moderate, or high risk for future cavities. Risk factors include: (1) Cavity history: prior cavities or restorations indicate high risk. (2) Dietary habits: high sugar consumption (candy, soda, juice, frequent snacking) increases risk. (3) Oral hygiene: poor brushing or flossing allows plaque buildup and caries. (4) Fluoride exposure: inadequate fluoride (no fluoridated water, no toothpaste, no professional fluoride) increases risk. (5) Saliva flow: low saliva (dry mouth) from medications, autoimmune disease, or radiation impairs remineralization and buffering. (6) Socioeconomic factors: low income, limited dental access, language barriers increase risk. (7) Age: young children and elderly patients on many medications are at higher risk. Standardized tools like the ADA Caries Risk Assessment tool (for adults) or Caries Management by Risk Assessment (CAMBRA) score each factor and classify overall risk. Document the assessment in the chart and discuss findings with the patient. Low-risk patients: routine prophylaxis, fluoride varnish annually, standard home care. Moderate-risk: more frequent cleanings (3–4 times/year), fluoride varnish twice yearly, antimicrobial rinse, dietary counseling. High-risk: very frequent cleanings (every 3 months), prescription-strength fluoride (1.1% sodium fluoride gel), possible antimicrobial therapy, and aggressive dietary and hygiene counseling. Risk assessment guides treatment intensity and helps prevent cavities through targeted prevention.

A treatment plan is a documented summary of the patient's findings, problems, and recommended treatment in order of priority. Components: (1) Chief complaint: what brought the patient in. (2) Findings: what you discovered (cavities, bone loss, missing teeth, malocclusion, etc.). (3) Diagnosis: interpretation of findings (e.g., 'moderate periodontitis, Class II cavities on #3 and #14'). (4) Treatment recommendations: specific treatments in order. (5) Prognosis: expected outcome with and without treatment. (6) Estimated cost and insurance coverage. (7) Patient goals: what the patient wants to achieve. Prioritization: (a) Emergency/urgent (pain, infection, bleeding, trauma) first. (b) Preventive (prophylaxis, fluoride, sealants) early to establish health baseline. (c) Surgical/complex (extractions, bone grafts, implants) mid-plan after initial stabilization. (d) Restorative (fillings, crowns) later. (e) Cosmetic (whitening, veneers, ortho) last if patient desires. Communicate the plan clearly to the patient: explain each treatment, why it is needed, expected cost, and how it benefits long-term oral health. Obtain informed consent before starting. A well-developed, clearly communicated treatment plan increases patient acceptance and compliance, improves outcomes, and reduces malpractice risk.

Radiographs reveal cavities that are not visible to the naked eye, especially on interproximal surfaces (between teeth). Periapical (PA) radiographs show the entire tooth crown and root; use to diagnose cavities, bone loss, failed root canals, and apical lesions. Bitewings show the coronal (crown) portion of posterior teeth and are best for detecting interproximal cavities; use at routine exams to screen for new cavities. Occlusal radiographs show all teeth in one arch and are useful for locating impacted teeth, supernumeraries, or small jaw fractures. Panoramic radiographs give a broad survey of all teeth and bone, used for new-patient exams, implant planning, and screening for pathology. Radiographic appearance of caries: a radiolucent (dark) lesion on the tooth indicates demineralization. On interproximal surfaces, a cavity often appears as a dark spot or shadow at the contact point or extending toward the pulp. On occlusal surfaces, caries may not be visible on radiographs (the decay is subtle), so clinical examination is more sensitive. On the root surface (root-surface caries in elderly patients), a radiolucent lesion at the gumline indicates active caries; these are progressive and require aggressive fluoride treatment or restoration. Compare radiographs year-to-year to detect subtle changes (progression). Use radiographs to assess bone level: measure the distance from the alveolar crest (top of the bone) to the apex (tip of the root); bone loss indicates periodontitis. Radiographs also show prior restorations, root canal treatment, and implants, which inform the treatment plan. Always correlate radiographic findings with clinical findings (a radiograph alone is not sufficient for diagnosis).

Occlusal analysis (bite assessment) evaluates how the upper and lower teeth contact and whether forces are distributed evenly. Findings guide treatment planning: (1) Normal bite (Class I): upper and lower molars and canines in normal relationship; low risk of trauma or dysfunction. (2) Malocclusion (Class II or III): molar and canine relationships are off, potentially causing chewing inefficiency, TMJ dysfunction, or accelerated wear. (3) Open bite: front teeth do not contact; causes speech problems and tongue-thrust habits. (4) Deep bite: upper front teeth overlap lower front teeth excessively; risk of gum trauma. (5) Crossbite: upper and lower teeth cross over on one or both sides; can cause facial asymmetry and wear. (6) Crowding: teeth overlap; makes cleaning difficult and increases cavity and gum disease risk. Bite force assessment: use articulating paper (carbon paper) to mark contact points; the patient bites and leaves marks showing which teeth contact. An even distribution across all posterior teeth is ideal; uneven contact (high spots) can cause trauma and sensitivity, especially on a single tooth that bears all chewing force (prematurities). Prematurities on a new restoration (filling, crown) must be adjusted before dismissing the patient. TMJ assessment: ask about jaw pain, clicking, or locking; if present, refer to a TMJ specialist. Bite assessment findings (malocclusion, heavy bite on specific teeth, TMJ symptoms) may indicate orthodontic referral, crown placement to restore even contact, or night guard therapy for bruxism (teeth grinding). A patient with a heavy bite and many restorations may need a night guard to prevent fracture.

Documentation of treatment must be contemporaneous (at the time of delivery, not days later) and include: date, tooth number(s), treatment performed (e.g., 'composite filling Class II #5 mesial-occlusal,' or 'SRP #2–3 quadrant right lower'), materials used (e.g., 'Tetric EvoCeram Bulk Fill'), any complications (e.g., 'slight gum bleeding, patient educated on flossing'), and clinician initials. Re-evaluation is critical for assessing outcomes: At follow-up (2–4 weeks post-treatment), check that restorations are intact, margins are sealed, bite is comfortable, and there is no sensitivity. For SRP: re-probe at 4–6 weeks to measure probing depth reduction (goal is ≥2 mm reduction); if pockets remain deep, the patient may need surgical referral. For cavities treated with sealants: observe at subsequent visits for retention and absence of secondary caries. Photograph restorations and pathology at baseline and follow-up to track changes over time. Trend data: keep a log of cavity incidence, probing depths, bone loss progression, and treatment outcomes to identify patterns (e.g., 'this patient gets cavities on posterior teeth despite treatment — indicates high-risk patient requiring more aggressive fluoride') and inform future prevention. Failed treatment (cavity recurrence, bone loss despite SRP, restoration failure) should trigger root cause analysis: Did the patient comply with home care? Was the clinical technique inadequate? Did the material fail? This feedback loop improves outcomes and prevents repeated failures.

Clear communication increases patient acceptance and compliance. Steps: (1) Explain findings in simple language (not jargon): 'You have a cavity on the right side of your upper tooth' vs. 'a Class II caries on #5 mesial surface.' (2) Show the patient (intraoral camera, models, radiographs) where the problem is. (3) Explain the treatment: 'I'll remove the cavity and fill it with a tooth-colored material.' (4) Explain why: 'This will stop the decay from spreading and restore your chewing.' (5) Discuss alternatives: 'We could do nothing, but the cavity will grow and eventually the tooth may die and need a root canal.' (6) Discuss cost and insurance coverage: 'Your insurance will cover 80% of the filling, which costs $150; you pay $30.' (7) Discuss risks and benefits: 'The filling should last 5–10 years. Rarely, you may feel sensitivity for a few days.' (8) Obtain informed consent: 'Are you ready to proceed?' or 'Do you have any questions?' Have the patient sign a consent form (required for major treatment like extractions or implants; optional but recommended for routine fillings). Document the conversation in the chart: 'Patient educated on treatment plan, risks, benefits, and costs. Consented.' This documentation protects you in litigation. If the patient declines treatment, document that too: 'Patient declined treatment at this time.' and follow up at the next visit to re-educate. Never pressure a patient or shame them; instead, educate and empower them to make informed choices about their health.