Endodontics · single question
The access cavity preparation shape for a maxillary lateral incisor is BEST described as:
Show answer and explanation
Correct answer: A. Triangular (rounded triangle)
- A. Correct. The access cavity of a maxillary lateral incisor is a TRIANGULAR (rounded triangle) shape on the lingual surface. This reflects the triangular cross-section of the tooth's pulp chamber.
- B. Oval shapes better describe mandibular incisors and canines with their narrow mesiodistal dimension.
- C. Trapezoidal shapes are associated with maxillary central incisors and premolars.
- D. Rhomboid shapes are not a standard description for anterior teeth access cavities.