PARL stands for “Periapical Radiolucency”.Click to see full answer. Similarly one may ask, what is PARL in dental?Background. Periapical radiolucency is the radiographic sign of inflammatory bone lesions around the apex of the tooth.Subsequently, question is, what causes Radiolucency in teeth? These causes can range from being endodontic, restorative, periodontic, occlusion, patient’s habit (i.e. tongue ring), trauma, etc. Often, teeth with prior root canal treatment that present with large radiolucencies require a commitment from the patient and the treating doctor. Additionally, what does PAP stand for in dentistry? The aim of this study was to evaluate the effect of Palatal Augmentation Prosthesis (PAP) for an Amyotrophic Lateral Sclerosis (ALS) patient.What does Parl stand for?One of the definitions of PARL is “Periapical Radiolucency”. Q: A: What does PARL mean? PARL as abbreviation means “Periapical Radiolucency”.