Diagnosis and Care Planning

Core Review

From Assessment to Diagnosis

The progression from assessment to diagnosis is the transition from data collection to clinical judgment. This process involves:

1. Data Synthesis: Combine subjective data (patient report) and objective data (clinical findings) to identify patterns
2. Problem Identification: Identify deficits in the patient's oral health status that fall within the scope of dental hygiene practice
3. Etiology Determination: Identify the causative and contributing factors for each problem
4. Diagnosis Formulation: Write a formal dental hygiene diagnosis statement

The Dental Hygiene Diagnosis Format:

[Problem] related to [Etiology] as evidenced by [Signs/Symptoms]

Example:

• "Risk for dental caries related to frequent fermentable carbohydrate intake and inadequate fluoride exposure as evidenced by DMFT score of 6, plaque index of 80%, and dietary recall showing sugar-sweetened beverage consumption 3 times daily"

Types of Dental Hygiene Diagnoses:

• Actual diagnosis: A problem that currently exists. Example: "Impaired oral self-care related to limited manual dexterity as evidenced by generalized plaque accumulation and plaque index of 90%"
• Risk diagnosis: A problem that may develop without intervention. Example: "Risk for root caries related to gingival recession and xerostomia as evidenced by multiple sites of exposed root surface and patient report of dry mouth"
• Wellness diagnosis: A positive health state that can be enhanced. Example: "Readiness for enhanced oral self-care as evidenced by the patient expressing desire to improve flossing technique"

Prioritization

Not all identified problems can or should be addressed simultaneously. Prioritization determines the order in which needs are addressed:

Priority 1: Urgent/Emergent — Conditions requiring immediate attention to prevent pain, infection, or systemic complications:

• Acute pain
• Active infection (abscess, cellulitis)
• Uncontrolled bleeding
• Trauma
• Severe acute necrotizing conditions

Priority 2: Disease Control — Active disease requiring treatment to prevent progression:

• Active periodontitis requiring scaling and root debridement
• Active caries requiring restoration
• Acute oral infections

Priority 3: Prevention and Health Promotion — Interventions to reduce future disease risk:

• Fluoride therapy for caries prevention
• Sealants
• Oral hygiene education
• Nutritional counseling
• Tobacco cessation

Priority 4: Maintenance and Rehabilitation — Long-term care and restoration of function:

• Prosthetic replacement
• Ongoing maintenance therapy
• Cosmetic procedures

Maslow's Hierarchy in Dental Care Prioritization: Physiological needs (pain relief, infection control) are addressed before higher-level needs (aesthetics, elective procedures). A patient in pain cannot effectively learn oral hygiene techniques or make behavioral changes.

Patient Readiness (Transtheoretical Model):

• Precontemplation: Patient does not recognize the problem or intend to change
• Contemplation: Patient recognizes the problem and is considering change
• Preparation: Patient intends to take action soon
• Action: Patient is actively modifying behavior
• Maintenance: Patient has sustained change for 6+ months

The patient's stage of readiness affects prioritization and goal setting. A patient in precontemplation may not benefit from extensive oral hygiene instruction; motivational interviewing and building awareness are more appropriate first steps.

Goal Setting

Goals provide direction, motivate the patient, and serve as benchmarks for evaluation. Effective goals follow the SMART framework:

• Specific: Clearly defines what will be accomplished
• Measurable: Quantifiable so progress can be evaluated
• Achievable: Realistic given the patient's circumstances and readiness
• Relevant: Directly related to the identified diagnosis
• Time-bound: Has a defined timeframe for achievement

Examples of SMART Goals:

Poor example: "Patient will have better oral hygiene." SMART version: "The patient will demonstrate a modified Bass brushing technique with correct angulation at a 45-degree angle to the gingival margin on all posterior teeth by the end of the second appointment."

Poor example: "Reduce bleeding on probing." SMART version: "Bleeding on probing will decrease from 45% to less than 15% of sites within 4 weeks following completion of scaling and root debridement and oral hygiene instruction."

Poor example: "Patient will floss." SMART version: "The patient will demonstrate correct flossing technique on posterior interproximal surfaces, self-report flossing 5 of 7 days per week, and achieve a reduction in interproximal plaque index from 85% to less than 30% within 6 weeks."

Goal Components:

• The expected outcome
• The conditions under which it will be achieved
• The criteria for measuring success
• The timeframe

Treatment Sequencing

The care plan must be sequenced logically to maximize effectiveness:

1. Emergency Care — Address pain, infection, trauma first
2. Medical Consultation — Obtain clearance or guidance as needed based on medical history findings
3. Preventive Interventions — Fluoride, sealants (may be performed concurrent with disease control)
4. Disease Control Phase — Non-surgical periodontal therapy, restorative care
5. Re-evaluation — 4-6 weeks after periodontal therapy
6. Surgical Phase (if indicated) — Periodontal surgery, extractions, implant placement
7. Restorative Phase — Final restorations, fixed prosthetics, removable prosthetics
8. Maintenance Phase — Continuing care (supportive periodontal therapy) at appropriate intervals

Quadrant Sequencing for Periodontal Therapy:

• Commonly performed by quadrant or sextant
• Maxillary right → Maxillary left → Mandibular left → Mandibular right (or another logical sequence)
• May use local anesthesia and treat 1-2 quadrants per appointment
• Consider patient tolerance, extent of disease, and anesthesia duration

Selecting Interventions

Interventions are the specific actions taken to address each diagnosis. They should be:

• Evidence-based: Supported by current research and clinical guidelines
• Patient-centered: Tailored to the individual patient's needs, preferences, and circumstances
• Scope-appropriate: Within the legal scope of dental hygiene practice in the jurisdiction
• Realistic: Achievable given available resources, time, and patient compliance

Intervention Categories:

• Clinical services: scaling, root debridement, fluoride application, sealants, local anesthesia
• Patient education: oral hygiene instruction, nutritional counseling, tobacco cessation
• Motivational strategies: motivational interviewing, goal setting, self-monitoring
• Referral: medical consultation, specialty referral (periodontist, orthodontist, oral surgeon)

Informed Consent Integration

Informed consent is obtained during the care planning phase. The patient must understand:

• The diagnoses identified
• The proposed treatment plan, sequence, and alternatives
• The risks and benefits of each option
• The consequences of no treatment
• The estimated costs and time commitment

Consent is documented in the patient record and revisited as the care plan evolves.

Evaluation

Evaluation criteria are established during planning. At re-evaluation and continuing care appointments, the clinician assesses:

• Goal attainment: Were the SMART goals achieved?
• Health outcomes: Did clinical parameters improve (probing depths, BOP, plaque index)?
• Behavioral outcomes: Did the patient adopt recommended self-care behaviors?
• Satisfaction: Is the patient satisfied with the outcomes?

Based on evaluation findings, the care plan may be:

• Continued: Goals are being met; continue as planned
• Modified: Goals are partially met; adjust interventions or timeframe
• Terminated: Goals achieved; transition to maintenance
• Rediagnosed: New findings require reassessment and new diagnoses

Clinical Application

Case: A 52-year-old patient presents with the following: chief complaint of "bleeding gums when I brush"; generalized probing depths 4-7 mm with BOP at 60% of sites; radiographic bone loss 30-40%; heavy supragingival and subgingival calculus; plaque index 85%; smokes 1 pack/day; type 2 diabetes (HbA1c 8.0%); BP 138/86.

Dental Hygiene Diagnoses (prioritized):

1. Periodontitis (Stage III, Grade C) related to bacterial biofilm, tobacco use, and poorly controlled diabetes as evidenced by probing depths of 4-7 mm, BOP 60%, radiographic bone loss 30-40%
2. Impaired oral self-care related to inadequate plaque control technique as evidenced by plaque index of 85%
3. Risk for further disease progression related to tobacco use as evidenced by self-report of smoking 1 pack per day
4. Risk for systemic complications related to poorly controlled diabetes (HbA1c 8.0%) and elevated BP (138/86)

Care Plan Sequence:

• Appointment 1: Medical consultation recommended for BP and diabetes management; oral hygiene instruction (modified Bass technique and interproximal cleaning); tobacco cessation counseling
• Appointment 2: Quadrant scaling and root debridement (maxillary right) with local anesthesia; reinforce OHI
• Appointment 3: Quadrant SRD (maxillary left); reinforce OHI
• Appointment 4: Quadrant SRD (mandibular left); reinforce OHI
• Appointment 5: Quadrant SRD (mandibular right); reinforce OHI
• Appointment 6: Re-evaluation at 4-6 weeks: reassess probing depths, BOP, plaque index; determine if further treatment indicated

Common Traps

• TRAP: Starting treatment before completing assessment. The full assessment (including medical history, vitals, radiographs, periodontal charting) must be completed before the care plan is developed.
• TRAP: Setting goals that are not measurable. "Improve oral hygiene" cannot be evaluated; "Reduce plaque index from 85% to <30%" can be measured.
• TRAP: Failing to prioritize. Treating sealants (prevention) before addressing active periodontitis (disease control) is a sequencing error.
• TRAP: Developing the care plan without patient input. Patient-centered care means the patient's goals, preferences, and readiness must be incorporated.