<prompt> Not a feature of Hand- Schuller Christian disease:Punched out bone destruction.Exophthalmos.Enopthalmos.Diabetes insipidus.  <response>: Hand-Schuller Christian disease is characterized classic triad of:Single or multiple areas of regular punched-out bone destructions in skull.Unilateral or bilateral exopthalmos andDiabetes insipidus.Gingivitis, loose and sore teeth with precocious exfoliation of teeth, failure of healing of sockets, and loss of supporting alveolar bone mimicking advanced periodontal disease are important oral manifestations. 