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
During mandibular border molding, we ask the patient to touch handle of tray with the tongue to record:
assistant
The correct answer is  For recording the distolingual border, hold the tray in place with the ﬁngers in each premolar region, while at the same time, asking the patient to place the tip of the tongue against the tray handle.
The action pulls forward the palatoglossal arches and conforms the impression material to its correct shape.