Deg. of the professional who may instruct you to do the last words of the four longest puzzle answers

• Person with a practice (Abbr.)
• Dental deg
• Medical degree for a tooth specialist: Abbr
• Deg. that's all about teeth
• Person who knows the drill?: Abbr
• One working on a calculus problem: Abbr
• Oral surgeon's deg.
• Tooth driller's degree: Abbr
• Med. degree

Wikipedia Word definitions in Wikipedia
DDS may refer to: Doctor of Dental Surgery , academic degree for dentists