Of or pertaining to the art and science of dentistry; relating to dental practice and treatment.
From 'dentistic' + '-al' (adjective-forming suffix). This is a doubly-suffixed form that was more common in 18th and 19th-century English.
The '-ical' ending (as opposed to just '-ic') was way more popular in older English writing—you see it everywhere in Victorian texts, but modern English has streamlined these to simpler forms like 'dental,' showing how languages naturally simplify over time.
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