A systematic scoring system to determine the long-term prognosis for severely damaged teeth

Area of Science:

• Dentistry
• Dental Prognosis
• Risk Assessment

Background:

• Treatment planning for severely damaged teeth involves known criteria but lacks a systematic decision-making approach.
• Assessing tooth prognosis requires consideration of both systemic and local patient factors.

Purpose of the Study:

• To introduce a quantitative systematic risk assessment scoring system (RASS) for determining the long-term prognosis of severely damaged teeth.
• To provide a structured framework for clinical decision-making regarding tooth preservation or extraction.

Main Methods:

• The RASS evaluates systemic parameters: patient's medical condition, smoking status, psychological factors, patient expectations, and periodontal health.
• Local factors assessed include: crown-to-root ratio, root condition, furcation involvement risk, restoration complexity, and esthetic outcomes.
• Each parameter is color-coded into four risk levels: optimal (green), favorable (blue), unfavorable (yellow), or hopeless (red).

Main Results:

• A single 'red zone' parameter in the RASS suggests tooth extraction as a potential course of action.
• If no 'red zone' parameters are present, treatment decisions are based on a comprehensive evaluation of all clinical conditions and overall failure risk.

Conclusions:

• The RASS simplifies and organizes the complex, multifactorial process of deciding between preserving or extracting severely damaged teeth.
• While the RASS focuses on five main factors, clinicians must integrate their knowledge, experience, and other relevant parameters for definitive treatment decisions.