Dental The most common error seen during access cavity preparation of maxillary and mandibular incisors is: A Perforation of the lingual or labial walls B Gouging of pulpal contents C Tooth fracture D All of the above 💡 Explanation The most common error seen during access cavity preparation of maxillary and mandibular incisors is: ✓ Correct Answer: A. Perforation of the lingual or labial walls