system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Kim et al classification system deals with:
assistant
The correct answer is  According to Kim et al Classification; there are 5 types

Type I incomplete isthmus between 2 canals.
Type II well defined, complete isthmus between 2 canals.
Type III very short but complete isthmus between 2 canals.
Type IV 3 or more canals with the complete or incomplete isthmus.
Type V 3 or more canals without any visible connection.