439 - Pierre Robin Sequence (PRS): Description of a Clinical Case

Introduction:

Pierre Robin Sequence is a pathology classified among craniofacial bone anomalies, characterized by the triad of micrognathia, glossoptosis, and cleft palate. The etiological theory suggests that during embryonic development, the jaw exhibits a lack of growth, causing the tongue to remain in an almost vertical position, preventing the closure of the palatine processes and the development of the genioglossus muscle (7th to 9th week of intrauterine life). It is termed a sequence because a single developmental alteration in the mandible results in various anatomical malformations.

Case report:

Seven-years-old male referred to the Pediatric Dentistry Clinic of the University of Guadalajara by Juan I Menchaca Civil Hospital. Clinical examination revealed tracheotomy, micrognathia, cleft palate, gingivitis associated with dental plaque, tartar accumulation, defective dental fillings, and multiple carious lesions.

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