Positioning and installing surgical drilling devices and related devices and systems

A dental drill guide system comprising:

• a surgical template configured to be coupled to a portion of a patient's mouth;
• a drill guide positioning ring housed within the surgical template, the drill guide positioning ring comprising a substantially cylindrical body defining a longitudinal axis and an inner surface defining a central opening;
• one or more retention elements extending inwardly from the inner surface of the drill guide positioning ring;
• and
• a removable drill guide receivable within the central opening of the drill guide positioning ring and defining a drilling passage configured to guide a surgical drill,
• wherein the removable drill guide and the drill guide positioning ring include complementary engagement features such that:
• the removable drill guide is insertable into the drill guide positioning ring along the longitudinal axis,
• relative rotation between the removable drill guide and the drill guide positioning ring is inhibited during drilling, and
• the one or more retention elements provide a resisting force that releasably limits axial separation of the removable drill guide from the drill guide positioning ring during drilling.