title: Letter: Local analgesia of maxillary first molars.
mesh_terms: D000766:Anesthesia, Dental; D000772:Anesthesia, Local; D002648:Child; D006801:Humans; D008437:Maxilla / Q000294:innervation; D008963:Molar / Q000294:innervation; D009407:Nerve Block; D010377:Pediatric Dentistry