ectodermal dysplasia is defined by national foundation for ectodermal dysplasia as a genetic disorder in which there are congenital birth defects of two or more ectodermal structures . the most common ectodermal dysplasia is x - linked recessive hypohidrotic ectodermal dysplasia ( christ siemens touraine syndrome ) and hydrotic ectodermal dysplasia ( clouston syndrome ) . in this case report , we are describing two different management approaches of two christ siemen touraine syndrome cases . a 7-year - old patient reported to our department with a complaint of multiple missing teeth . intraoral examination revealed hypodontia of lower arch and anodontia of the upper arch [ figure 1 ] . skin biopsy revealed decreased number of sweat glands , and orthopantomogram ( opg ) showed congenitally missing teeth and tooth bud of two permanent incisors . case 1 : clinical features our treatment plan was to give a removable partial denture in the upper and complete denture in lower arch [ figure 2 ] . case 1 : prosthetic rehabilitation a 5-year - old patient reported to the pediatric and preventive dentistry department with a complaint of lower space maintainer getting dislodged continuously . detailed case history revealed the child to have been diagnosed with christ siemens touraine syndrome . thorough clinical examination revealed features such as sparse hair , dry and rough skin and a lack of tolerance to heat and inability to sweat normally . intraoral examination revealed that the factors that prevented the space maintainer from being seated are a highly retroclined lower lip resting on the lower arch and lingually tipped lower molar bilaterally rendering the clasps of the space maintainer unable to engage the molars . opg revealed congenitally missing teeth and presence of the maxillary incisors and first molar on all quadrants in the secondary dentition [ figure 3 ] . case 2 : prosthetic rehabilitation using removable partial denture in the upper arch and fixed partial denture in lower arch our treatment plan was to give a removable space maintainer in the upper arch and to convert the removable space maintainer to a fixed one in the lower arch . the lower molars were banded , and the removable space maintainer was trimmed and attached to an orthodontic wire , which was soldered onto the bands . a 7-year - old patient reported to our department with a complaint of multiple missing teeth . intraoral examination revealed hypodontia of lower arch and anodontia of the upper arch [ figure 1 ] . skin biopsy revealed decreased number of sweat glands , and orthopantomogram ( opg ) showed congenitally missing teeth and tooth bud of two permanent incisors . case 1 : clinical features our treatment plan was to give a removable partial denture in the upper and complete denture in lower arch [ figure 2 ] . a 5-year - old patient reported to the pediatric and preventive dentistry department with a complaint of lower space maintainer getting dislodged continuously . detailed case history revealed the child to have been diagnosed with christ siemens touraine syndrome . thorough clinical examination revealed features such as sparse hair , dry and rough skin and a lack of tolerance to heat and inability to sweat normally . intraoral examination revealed that the factors that prevented the space maintainer from being seated are a highly retroclined lower lip resting on the lower arch and lingually tipped lower molar bilaterally rendering the clasps of the space maintainer unable to engage the molars . opg revealed congenitally missing teeth and presence of the maxillary incisors and first molar on all quadrants in the secondary dentition [ figure 3 ] . case 2 : prosthetic rehabilitation using removable partial denture in the upper arch and fixed partial denture in lower arch our treatment plan was to give a removable space maintainer in the upper arch and to convert the removable space maintainer to a fixed one in the lower arch . the lower molars were banded , and the removable space maintainer was trimmed and attached to an orthodontic wire , which was soldered onto the bands . in many cases , dentists are the first to identify this condition as the patients report with multiple missing teeth . hence , dentists play an important role in the diagnosis and management of ectodermal dysplasia . the method of prosthetic rehabilitation is chosen based on the features and the characteristics of each individual case . in the first case , a removable space maintainer was chosen as the feature of the patient was ideal for such a line of management and implants were not considered due to the age of the patient . in the second case , a fixed space maintainer was chosen in the lower due to the constant displacement of the fixed space maintainer by the lower lip and disengagement of clasps from the lower molars . implants were not considered in both cases taking into consideration the age of the patient . the possibility of a tooth bud developing at a later stage can not be ruled out , and implants would hamper such a development . the prosthetic management of both cases achieved multiple goals such as : 
 restoring masticatory functionenhancing the estheticselevating the confidence of the patientsimproved the lower vertical height of the facereduced the angular folds of lip drastically reducing the possibility of fungal infectionsimproved the patients quality - of - life . restoring masticatory function enhancing the esthetics elevating the confidence of the patients improved the lower vertical height of the face reduced the angular folds of lip drastically reducing the possibility of fungal infections improved the patients quality - of - life . once the patients attain complete craniofacial growth , an implant - supported prosthesis shall be placed which is the ideal long - term dental management of christ siemens touraine syndrome . as the dentist is the first to meet the child in most cases , in depth knowledge about the features of ectodermal dysplasia is imperative and intricate understanding of the treatment modalities is essential from the clinicians side . the successful management of such cases will ensure the functional and esthetic requirement of the patient and thereby increase the self - esteem of the child .
ectodermal dysplasia is a heterogeneous group of inherited disorders , which exhibit a classic triad of hypohydrosis , hypotrichosis , and hypodontia . 
 hypohidrotic or anhidrotic ectodermal dysplasia or christ siemens touraine syndrome is the most common condition among ectodermal dysplasia patients . 
 this is a case report on two christ siemens touraine syndrome cases and two different approaches to prosthetic management .