Which of the following options is not a type of partial veneer crown?

The choice of nine-tenths as not being a type of partial veneer crown is accurate because the recognized types of partial veneer crowns typically include three-quarter and seven-eighths configurations. A three-quarter crown covers three-quarters of the tooth structure, preserving the facial and lingual surfaces, while a seven-eighths crown covers almost the entire tooth except for a small portion, often on the facial side.

The term nine-tenths does not align with the established nomenclature used in dentistry for partial veneer crowns. It might imply a design, but it is not a standard classification.

Additionally, the term "pinledges" refers to a different type of crown preparation or technique commonly used to retain restorations, rather than a specific partial veneer type. Understanding these classifications is essential for identifying appropriate crown designs and their applications in restorative dentistry.